Numbers Provenance Register
The guide's date-stamped figures — 1,355 sourced figures (a figure quoted in several chapters appears once per mention), each with its as-of date and source label, tracked over time as values are revised.
1,355 sourced figures575 with revision history60 flagged contested186 dated 2024 or older
Recently revised
How this register works
The volatile figures in the guide's 166 chapters land here automatically at publish time, with their as-of date and source label; a figure is flagged contested when credible sources materially disagree. Each publish snapshots values into a time series — the sparklines and the “recently revised” list above are that history, not editorial claims. Treat every number as a range to stress-test, not a constant: run irreversible decisions across the spread.
1,427 matches · showing 400
| Metric | Value | Trend | As of | Updated | Where | Source |
|---|---|---|---|---|---|---|
| rack power across the inflection: legacy → GB200 NVL72 (~132 kW) → Rubin Ultra Kyber (~600 kW, 2027 roadmap) | ~10–15 kW → 120–600 kW | — | 2026 | — | 0.1 | SemiAnalysis / NVIDIA roadmap |
| practical air-cooling ceiling per rack (~41 kW); RDHx bridges ~30–50 kW passive / ~50–100 kW active; DLC supports substantially higher rack densities | ~41 kW | 2025-02-13 | — | 0.1 | SemiAnalysis, Datacenter Anatomy Part 2 – Cooling Systems | |
| inference share of AI compute in 2026 (½ in 2025, ⅓ in 2023); 80–90% of draw at large operators | ~2/3 | — | 2026 | — | 0.1 | Deloitte TMT Predictions 2026; McKinsey |
| US large-load grid interconnection lead time end-to-end; up to ~10 yr in the worst queues — the binding constraint | ~3–7+ yr | — | 2026 | — | 0.1 | LBNL Queued Up; ERCOT / PJM filings |
| HV/substation power transformer lead time (standard); up to ~60 months in constrained markets — often the schedule's long pole | ~128–160+ wk | 2026 | — | 0.1 | Wood Mackenzie / VAWN index / POWER Magazine (mid-2026) | |
| global data center capex in 2026 (~21% CAGR through 2029; GPUs ~1/3 of capex) | more than $1T | 2026-Q1 | — | 0.1 | Dell'Oro Group | |
| cumulative global data center capex by 2030 (~$5.2T AI-capable) — the scale that makes mis-coordination catastrophic | ~$6.7T | 2025 | — | 0.1 | McKinsey, 'The cost of compute' | |
| end-to-end electrical-chain efficiency, 800VDC/SST chain vs a typical AC path (utility-to-VRM) — a system gain only co-design captures | ~87% vs ~82% AC | 2025 | — | 0.1 | SemiAnalysis, Datacenter Anatomy Pt 1 / Inside the 800VDC Revolution | |
| inference share of AI compute in 2026 (½ in 2025, ⅓ in 2023) — a fast-moving figure read as direction, not a fixed level | ~2/3 | — | 2026 | — | 0.2 | Deloitte TMT Predictions 2026; McKinsey |
| global data center capex 2026, approaching — volatile market figure; analyst estimates differ by capex-scope definition | more than $1T | 2026-Q1 | — | 0.2 | Dell'Oro Group | |
| per GB200 NVL72 rack (shipping, ~115 kW liquid + ~17 kW air) — a semi-durable hardware spec you can design against | ~132 kW | 2025 | — | 0.2 | 115/17 split: HPE QuickSpecs (OEM); ~132 kW all-in: Vertiv/451 | |
| per Rubin Ultra Kyber-class rack — marked roadmap/announced, not shipping; do not budget it as a shipping figure | ~600 kW | — | H2 2027 (announced) | — | 0.2 | NVIDIA GTC (Jensen Huang); DCD, Tom's Hardware |
| practical air-cooling ceiling per rack (~41 kW); RDHx bridges ~30–50 kW passive / ~50–100 kW active; DLC supports substantially higher rack densities | ~41 kW | 2025-02-13 | — | 0.2 | SemiAnalysis, Datacenter Anatomy Part 2 – Cooling Systems | |
| large-load grid interconnection lead time — volatile and region-dependent; up to ~10 yr in worst queues | ~3–7+ yr | — | 2026 | — | 0.2 | LBNL Queued Up; ERCOT / PJM filings |
| GPU economic vs book life — flagged CONTESTED; run irreversible decisions across the range, not a point estimate · contested | 2–3 yr vs 5–6 yr | — | 2026 | — | 0.2 | CNBC / SemiAnalysis synthesis |
| best-in-class vs industry-average training goodput — a GOODPUT-thread target, vendor-marketed upper bound | ~96% vs ~90% | — | 2025 | — | 0.2 | SemiAnalysis ClusterMAX / CoreWeave |
| industry-weighted average PUE, flat for a 6th year; best-in-class liquid 1.05-1.15 | 1.54 | — | 2025 | — | 0.3 | Uptime Institute Global Data Center Survey 2025 |
| WUE range: industry avg ~1.8-1.9; best-in-class 0.3-0.7; closed-loop ~0 | ~0-1.9 L/kWh | 2025 | — | 0.3 | Vertiv / NREL synthesis; Microsoft FY2025 fleet ~0.27 | |
| goodput (effective training time): industry average vs best-in-class | ~90% / ~96% | 2025 | — | 0.3 | SemiAnalysis ClusterMAX 2.0 / CoreWeave | |
| scale-up (NVLink) domain size: HGX node, NVL72 rack, announced Rubin Ultra Kyber | 8 - 72 - 576 | — | 2026 | — | 0.3 | NVIDIA NVLink / Rubin platform roadmap |
| scale-up (NVLink5/GPU) vs scale-out (per-NIC) bandwidth — roughly 18x apart per direction (900 vs 50 GB/s each way) | ~1.8 TB/s vs ~400 Gb/s | — | 2025 | — | 0.3 | NVIDIA / SemiAnalysis |
| self-operated TCO at 2048-GPU scale, 90% util; ~$1.03-3.50 rented (contested — single-source) · contested | ~$0.74/GPU-hr | 2025 | — | 0.3 | SemiAnalysis, 'How much do GPU clusters really cost' | |
| inference cost per million tokens: self-hosted 70B worked example vs market average | ~$1.90-2.50 | 2025 | — | 0.3 | SemiAnalysis synthesis | |
| capital premium for Tier IV (fault-tolerant) over Tier III (concurrently maintainable) | ~25–40% facility | — | 2024-05 | — | 0.3 | McKinsey; Schneider Electric cost calculator (via Pembina); Uptime-derived Turner–Seader model; APC/Panduit (topology-only) |
| Uptime: concurrent maintainability vs fault tolerance; legacy ~99.982% (~1.6 h/yr) vs ~99.995% (~26 min/yr), now Uptime-disavowed | Tier III / IV | — | 2025 | — | 0.4 | Uptime Institute Tier Standard |
| TIA-942-C resilience scale; full-facility telecom + M&E standard, May 2024 (C) revision | Rated 1–4 | — | 2024 | — | 0.4 | ANSI/TIA-942-C |
| EN 50600 / ISO/IEC 22237 Availability Classes (+ Protection Classes); basis of the EU DC sustainability scheme | Class 1–4 | — | 2024 | — | 0.4 | CEN / ISO/IEC JTC 1 |
| ASHRAE TC 9.9 air classes and liquid W-classes (5th ed. + 2024 liquid-cooling resiliency addendum) | A1–A4 / W17–W45 | — | 2024 | — | 0.4 | ASHRAE TC 9.9 Thermal Guidelines |
| OCP Diablo 400 (Mt. Diablo) sidecar-power spec; ±400/800 VDC, ~100 kW to ~1 MW racks | v0.7.0 | — | March 1, 2026 | — | 0.4 | OCP (Google/Meta/Microsoft) |
| FedRAMP 20x Key Security Indicators replacing 325+ NIST 800-53 controls; Phase 3 opens to all Q3 2026 | 56–61 KSIs | — | 2026 | — | 0.4 | FedRAMP PMO (RFC-0006) |
| ISO/IEC 42001 (first AI management-system standard) from publication to operationalized certification bodies | 2023 → 2026 | — | 2026 | — | 0.4 | ISO/IEC; ANAB/BSI accreditation |
| industry-weighted PUE (flat YoY) — the ISO/IEC 30134-2 KPI that lands in leases and disclosures | 1.54 | — | 2025 | — | 0.4 | Uptime Institute Global Data Center Survey 2025 |
| Tier IV capital premium over Tier III for the fault-tolerance step (the two-independent-path guarantee) | ~25–40% facility | — | 2024-05 | — | 0.5 | McKinsey; Schneider Electric cost calculator (via Pembina); Uptime-derived Turner–Seader model; APC/Panduit (topology-only) |
| of impactful data-center outages root-caused to power (most often UPS); IT/networking ~23% | 45% | 2025 | — | 0.5 | Uptime Institute Annual Outage Analysis 2025 | |
| of recent major outages cost over $100k / over $1M respectively | ~57% / ~20% | — | 2025 | — | 0.5 | Uptime Institute Global Survey |
| of human-error outages caused by staff not following procedures (up 10 pts YoY) — process, not topology | 58% | — | 2025 | — | 0.5 | Uptime Institute Annual Outage Analysis 2025 |
| best-in-class H100 cluster failure rate; one failure restarts a synchronous job from checkpoint | ~1 failure / 512 GPUs / week | — | 2025 | — | 0.5 | SemiAnalysis (100k H100 clusters) |
| training goodput: industry average vs best-in-class; reliability tax ~6–21% of paid GPU-hours, by provider | ~90% / ~96% | 2025 | — | 0.5 | SemiAnalysis ClusterMAX 2.0 / CoreWeave | |
| data-center load lost in the July 10 2024 N. Virginia 230 kV disturbance (six faults over 82 s; 60 sites, 25 substations) — later a driver of NERC's rare May 2026 Level 3 alert | ~1,500 MW | 2024 | — | 0.5 | NERC Incident Review of the July 2024 event; NERC Level 3 Alert (May 2026) | |
| per GB200 NVL72 rack (≈132 kW typical: ~115 kW liquid + ~17 kW air) | ~120–132 kW | 2025 | — | 1.1 | 115/17 split: HPE QuickSpecs (OEM); 120 kW cooling: NVIDIA; ~132 kW all-in: Vertiv/451 | |
| per Rubin Ultra Kyber rack (NVL144 = 144 packages / 576 dies) on 800 VDC | ~600 kW | — | H2 2027 (announced) | — | 1.1 | NVIDIA GTC (Jensen Huang); DCD, Tom's Hardware |
| practical air-cooling ceiling per rack (~41 kW); RDHx bridges ~30–50 kW passive / ~50–100 kW active; DLC supports substantially higher rack densities | ~41 kW | 2025-02-13 | — | 1.1 | SemiAnalysis, Datacenter Anatomy Part 2 – Cooling Systems | |
| inference share of AI compute in 2026 (½ in 2025, ⅓ in 2023); 80–90% of draw at large operators | ~2/3 | — | 2026 | — | 1.1 | Deloitte TMT Predictions 2026; McKinsey |
| active generation + storage in US interconnection queues (end-2025; >1.5x US installed capacity); large-load waits 4–7 yr in top hubs | >2,060 GW | — | end-2025 | — | 1.1 | LBNL, US interconnection queue data through 2025 (May 2026) |
| all-in cost per 8-GPU H100 server (excl. storage); ~$31k/GPU/yr enterprise all-in | $283–318k | — | 2025 | — | 1.1 | SemiAnalysis AI Neocloud Playbook |
| TCO at 2048-GPU scale, 90% utilization; ~$1.03 small clusters; cloud H100 ~$1.49 (contested — single-source) · contested | ~$0.74/GPU-hr | 2025 | — | 1.1 | SemiAnalysis, 'How much do GPU clusters really cost' | |
| accelerated GPU economic life — contested: bear case 2–3 yr on obsolescence; Goldman Sachs estimates 4–6 yr useful life vs 5–6 yr book · contested | 2–3 yr (bear case) vs 4–6 yr (GS) | — | 2026 | — | 1.1 | Goldman Sachs |
| per dense training rack (GB200 NVL72 ~120–132 kW; GB300 ~142 kW) | 120–142 kW | 2025 | — | 1.2 | NVIDIA OCP / SemiAnalysis | |
| per Rubin Ultra Kyber rack (NVL144 = 144 packages / 576 dies) on 800 VDC (announced roadmap) | ~600 kW | — | H2 2027 (announced) | — | 1.2 | NVIDIA GTC (Jensen Huang); DCD, Tom's Hardware |
| practical air-cooling ceiling per rack (~41 kW); RDHx bridges ~30–50 kW passive / ~50–100 kW active; DLC supports substantially higher rack densities | ~41 kW | 2025-02-13 | — | 1.2 | SemiAnalysis, Datacenter Anatomy Part 2 – Cooling Systems | |
| GB200 NVL72 DLC coolant envelope (rack accepts up to 45 °C supply / 65 °C return, ASHRAE W45-class) and secondary-loop flow | ≤45 °C / ~170–235 L/min | — | 2025 | — | 1.2 | NVIDIA OCP contribution / Vertiv & vendor NVL72 reference designs |
| training back-end fabric non-blocking; 2:1 'optimized' cuts back-end cost ~31% (contested — single-source) · contested | 1:1 vs 2:1 | — | 2025 | — | 1.2 | SemiAnalysis AI Neocloud Playbook |
| NVLink5 per-GPU BW (1.8 TB/s bidirectional, ~900 GB/s/dir) vs ~400G scale-out NIC (~50 GB/s/dir) — keep collectives in scale-up | ~18x | — | 2025 | — | 1.2 | NVIDIA / SemiAnalysis |
| unplanned interruptions on 16,384 H100s (~1 / 3 hr); 78% hardware-caused | 419 / 54 days | — | 2024 | — | 1.2 | Meta Llama 3 paper (Table 5) |
| best-in-class mature H100 cluster MTBF; one failure restarts a synchronous job | ~7 days / 512 GPUs | 2025 | — | 1.2 | SemiAnalysis 100k-H100 clusters | |
| training goodput: industry average / best-in-class; reliability tax ~6–21% of paid GPU-hours, by provider | ~90% / ~96% | 2025 | — | 1.2 | SemiAnalysis ClusterMAX 2.0 / CoreWeave | |
| inference share of AI compute in 2026 (½ in 2025, ⅓ in 2023); 80-90% of draw at large operators | ~2/3 | — | 2026 | — | 1.3 | Deloitte TMT Predictions 2026; McKinsey |
| AI inference capacity to 2030 (~35% CAGR) vs training 23.1 → 62.2 GW (~22%) | 20.9 → 93.3 GW | — | 2026 | — | 1.3 | McKinsey, 'The next big shifts in AI workloads' |
| market for inference-optimized chips in 2026; most inference stays in data centers, not at the edge | >$50B | — | 2026 | — | 1.3 | Deloitte TMT Predictions 2026 |
| power-oversubscription headroom: inference (uncorrelated per-request peaks) vs training (synchronous peaks) | ~21% vs ~3% | 2024 | — | 1.3 | Patel et al., POLCA (Microsoft Research), ASPLOS 2024 | |
| inference fabric oversubscription (vs 1:1 non-blocking for training); 2:1 cuts back-end cost ~31% (contested — single-source) · contested | 2:1-3:1 | — | 2025 | — | 1.3 | SemiAnalysis AI Neocloud Playbook; Juniper |
| HBM3E per Ironwood TPU v7 (inference-era ASIC); 9,216-chip pods, 42.5 FP8 ExaFLOPS, 4,614 FP8 TFLOPS/chip | 192 GiB / 7.4 TB/s | — | 2025 | — | 1.3 | Google Cloud; SemiAnalysis |
| self-hosted vs market-avg inference cost per million tokens; ~10x/yr token-price deflation (LLMflation) | ~$1.90 → ~$2.50/M tok | 2025 | — | 1.3 | NVIDIA synthesis; a16z | |
| of wall-clock spent on rollout generation in agentic/reasoning RL post-training | ~80% | 2026 | — | 1.4 | 2025–2026 RL-systems papers (ROLL Flash, ROLLART) | |
| of compute consumed by rollouts at 16K-token generation length (RLVR long-CoT) | ~70% | — | 2025 | — | 1.4 | RLVR / long-CoT RL-systems analyses (arXiv) |
| tokens per RL trajectory for reasoning/agentic tasks — the rollout that dominates cost | 10K–100K+ | 2026 | — | 1.4 | reasoning-model RL reports | |
| wall-clock speedup of variance-controlled async RL vs synchronous at equal accuracy (~42h vs ~105h) | 2.5x | — | 2026 | — | 1.4 | Stable Asynchrony / VCPO (arXiv 2602.17616) |
| just to hold weights for a 70B PPO-RLHF stack (actor + reference + reward + critic), pre-optimizer | 8–16 GPUs | 2025 | — | 1.4 | derived (guide analysis: actor + reference + reward + critic weights) | |
| QLoRA fine-tune on a single 48 GB GPU; memory cut from >780 GB to <48 GB without quality loss | 65B on 48 GB | — | 2023 | — | 1.4 | QLoRA (Dettmers et al., arXiv 2305.14314) |
| share of parameters trained by a LoRA adapter vs full fine-tune (model-dependent) | ~0.1% | 2021 | — | 1.4 | LoRA (Hu et al.) / 2026 PEFT practitioner guides | |
| GPU:CPU norm rebalancing toward more CPU per node as agentic RL adds rollout/tool/env load | ~8:1 → ~2:1 and below | 2026 | — | 1.4 | Tom's Hardware | |
| one-way fiber latency from distance alone (~5 ms per 1,000 km); ~1.6 ms RT per 100 mi before any processing | ~0.80 ms / 100 mi | — | 2025 | — | 1.5 | M2 Optics fiber-latency analysis (4.9 µs/km, n≈1.47) |
| MEC round-trip at the access edge; under ~50 ms from a regional 5G URLLC breakout | sub-10 ms | — | 2025 | — | 1.5 | ETSI ISG MEC; arXiv 2504.03708 (telco-LLM latency) |
| perceptibility thresholds: hard real-time / interactive (AR-VR, agentic) / 'instant' conversational | ~30 / 50 / 100 ms | — | 2026 | — | 1.5 | Qualcomm |
| edge data center market, 2026 to 2033, ~14.9% CAGR; AI/ML inference the fastest-growing segment | ~$40B → ~$106B | — | 2026 | — | 1.5 | Grand View Research; Coherent Market Insights |
| North America’s share of the global edge-data-center market in 2025 / micro edge data centers’ share of the U.S. edge-data-center market in 2026 | ~35% / ~54% | — | 2025 / 2026 | — | 1.5 | Grand View Research; Coherent Market Insights |
| inference share of AI compute in 2026 (½ in 2025); the growth pool the edge competes for | ~2/3 | — | 2026 | — | 1.5 | Deloitte TMT Predictions 2026; McKinsey |
| edge-site deploy time and install-time reduction under zero-touch provisioning (Vapor IO; ZTP fleet tooling) | ~1 hr / 90%+ | — | 2026 | — | 1.5 | Vapor IO; Scale Computing / VMware VCF Edge |
| practical power envelope per edge micro-site (vs ~132 kW for a centralized NVL72 rack) | a few kW – ~30 kW | 2026 | — | 1.5 | practitioner ranges | |
| time-to-power: greenfield self-build vs wholesale colo (live 50k+ GPU cluster) vs neocloud | 24–36 mo / 6–12 mo / days–weeks | 2026 | — | 1.6 | SemiAnalysis; JLL 2026 Outlook | |
| brownfield retrofit cost: cooling-only vs full AI retrofit; ~2/3 of pre-2015 DCs unsuitable for frontier density · contested | ~$2M / ~$5–6M+ per MW | 2025 | — | 1.6 | Enabled Energy; Uptime Institute (via Data Center Knowledge) | |
| global wholesale colo average 2025 (record); ~$120 Atlanta to ~$450 Singapore; ~1% vacancy | ~$217/kW-month | 2025 | — | 1.6 | JLL / CBRE synthesis | |
| self-build TCO at 2,048-GPU scale, 90% utilization (~$1.03 small clusters) vs neocloud median ~$2.3–3.5/hr (contested — single-source) · contested | ~$0.74/GPU-hr | 2025 | — | 1.6 | SemiAnalysis, 'How much do GPU clusters really cost' | |
| neocloud GPU rental vs hyperscaler pricing (8-GPU node ~$34/hr neocloud vs ~$98/hr hyperscaler) | 40–85% below | — | 2026 | — | 1.6 | SemiAnalysis H100 Index / AM Compute |
| rise in the 1-year H100 rental contract index, Oct 2025 to Mar 2026, as capacity tightened; on-demand largely sold out | ~+40% | — | 2026 | — | 1.6 | SemiAnalysis H100 Rental Index |
| breakeven utilization for a debt-financed cluster; swings -$330k to +$340k/mo (55% vs 85%) on a 1,024-GPU H100 build (contested — single-source) · contested | ~70% | 2026 | — | 1.6 | AM Compute (2026; single-source unit-economics model) | |
| US large-load grid interconnection lead time end-to-end; up to ~10 yr in worst queues — the gate behind self-build | ~3–7+ yr | — | 2026 | — | 1.6 | LBNL Queued Up; ERCOT / PJM filings |
| practical air-cooling ceiling per rack (~41 kW); RDHx bridges ~30–50 kW passive / ~50–100 kW active; DLC supports substantially higher rack densities | ~41 kW | 2025-02-13 | — | 1.7 | SemiAnalysis, Datacenter Anatomy Part 2 – Cooling Systems | |
| per GB200 NVL72 rack (~115 kW liquid + ~17 kW air); GB300 ~142 kW; Rubin Ultra Kyber ~600 kW | ~120–132 kW | 2025 | — | 1.7 | 115/17 split: HPE QuickSpecs (OEM); 120 kW cooling: NVIDIA; ~132 kW all-in: Vertiv/451 | |
| GB200 NVL72 DLC coolant envelope (rack accepts up to 45 °C supply / 65 °C return, ASHRAE W45-class) and secondary-loop flow | ≤45 °C / ~170–235 L/min | — | 2025 | — | 1.7 | NVIDIA OCP contribution / Vertiv & vendor NVL72 reference designs |
| training non-blocking vs inference oversubscribed; 2:1 cuts back-end cost ~31% (contested — single-source); Meta ran 7:1 on 24k H100 · contested | 1:1 vs 2:1–3:1 | 2025 | — | 1.7 | SemiAnalysis Neocloud Playbook; Juniper AI-cluster design; Meta | |
| GPU:CPU ratio shifting from training-era norm toward agentic-inference host demand | ~8:1 → ~2:1 and below | 2026 | — | 1.7 | TrendForce Insights | |
| full AI liquid retrofit cost crossing the cooling cliff; still strands capacity | ~$5–6M/MW → greenfield parity | 2026 | — | 1.7 | Enabled Energy; Uptime Institute via Data Center Knowledge | |
| capital premium for Tier IV (fault-tolerant) over Tier III (concurrently maintainable) | ~25–40% facility | — | 2024-05 | — | 1.7 | McKinsey; Schneider Electric cost calculator (via Pembina); Uptime-derived Turner–Seader model; APC/Panduit (topology-only) |
| goodput (effective training time): industry avg vs best-in-class; reliability tax ~6–21% of paid GPU-hours, by provider | ~90% / ~96% | 2025 | — | 1.7 | SemiAnalysis ClusterMAX 2.0 / CoreWeave | |
| 1 GW AI data center: ~$38B up-front capex (servers ~$21.2/W incl. GPUs · facility ~$11.4/W · network ~$4.9/W, Epoch May-2026) and ~$8.5B/yr all-in TCO | ~$38B / ~$8.5B/yr | 2026-05 | — | 1.8 | Epoch AI, AI datacenter cost breakdown | |
| 1 GW annual TCO at 3-yr / 5-yr / 7-yr IT useful life — the dominant lever | $12B / $8.5B / $7B | 2025 | — | 1.8 | Epoch AI / AM Compute synthesis | |
| self-operated TCO at 2048-GPU scale, 90% util; ~$1.03 small clusters (contested — single-source) · contested | ~$0.74/GPU-hr | 2025 | — | 1.8 | SemiAnalysis, 'How much do GPU clusters really cost' | |
| breakeven utilization (debt-financed); 1,024-GPU cluster swings -$330k to +$340k/mo (contested — single-source) · contested | ~70% | 2026 | — | 1.8 | AM Compute (2026; single-source unit-economics model) | |
| LLMflation: inference cost decline at fixed quality (Epoch Mar-2025: ~50x/yr median; ~200x/yr post-2024 models) | ~10x/yr | — | 2024-2025 | — | 1.8 | a16z (Nov 2024); Epoch AI (Mar 2025) |
| AI-app gross margin vs 70-90% for mature SaaS | ~41% to ~52% | — | 2026 | — | 1.8 | ICONIQ State of AI 2026; Bessemer |
| wholesale colo global avg 2025; BTS/CTL ~$150-220/kW-mo over 15 yr | ~$217/kW-mo | — | 2025 | — | 1.8 | JLL / CBRE synthesis |
| estimated understated AI D&A 2026-2028 (CONTESTED); industry AI D&A ~$400B/yr · contested | ~$176B | — | 2026 | — | 1.8 | Burry / secondary analyses; filings |
| large power transformer lead time (~144 wk GSU); up to ~5 yr in constrained markets — the schedule-dominating long pole | ~128–160+ wk | 2026 | — | 2.1 | Wood Mackenzie / VAWN index / POWER Magazine (mid-2026) | |
| large-load grid interconnection, application to energization; up to ~10 yr in the worst queues | ~3–7+ yr | — | 2026 | — | 2.1 | LBNL Queued Up; ERCOT / PJM filings |
| AI data-center shell-to-MEP-complete construction — fast vs the power track, so rarely the binding constraint | 18–24 mo | — | 2026 | — | 2.1 | Mastt; Data Center Knowledge |
| of the ~12 GW US capacity targeted for 2026 actively under construction by early 2026; the rest exposed to slippage | ~1/3 | — | 2026 | — | 2.1 | Industry construction tracking |
| Level-5 integrated systems testing for a liquid-cooled AI hall (vs 4–6 wk air-cooled) — the un-compressible commissioning tail | 10–14 wk | — | 2026 | — | 2.1 | Construct & Commission / 2026 outlook synthesis |
| best-in-class fleet failure rate after burn-in; new clusters fail far more for the first 3–4 weeks — the bring-up tail | ~1 failure / 512 GPUs / week | — | 2025 | — | 2.1 | SemiAnalysis (100k H100 clusters) |
| annual revenue per GW of AI capacity — so ~200 MW landing 6 months early is worth ~–.0–1.3B; the schedule's dollar value (contested — single-source) · contested | ~$12–13B/GW/yr | — | 2026-06 | — | 2.1 | SemiAnalysis ('To Boldly Go', Jun 2026) |
| PJM interconnection deposits committed before the design is frozen: a fixed study deposit (hundreds of thousands, non-refundable once the request completes) plus a $15k/MW readiness deposit | $500k study + $15k/MW | — | 2026 | — | 2.1 | PJM large-load Expedited Interconnection Track filing / Inside Lines |
| build-cost threshold below which GMP procurement dominates; larger programs lean EPCM/progressive | <$500M | 2026 | — | 2.2 | King & Spalding, Building Data Centers – Key Considerations | |
| global average data-center construction cost (base building); tenant AI fit-out adds up to ~$25M/MW | $11.3M/MW | — | 2026 | — | 2.2 | JLL 2026 Global Data Center Outlook |
| mainstream hyperscale / build-to-suit construction benchmark before buyer-specific scope | $10–12M/MW | — | 2026 | — | 2.2 | JLL / industry synthesis |
| HV/substation transformer lead time (≈144 wk GSU; up to ~60 mo constrained) — OFE-by-default, pre-GC | ~128–160+ wk | 2026 | — | 2.2 | Wood Mackenzie / VAWN index / POWER Magazine (mid-2026) | |
| H100/H200 GPU lead times through 2025–2026 — bimodal in 2026: spot H100s improving to weeks while H200 and full enterprise systems run 6–12 mo; why GPUs are owner-furnished and on allocation | ~3–12 mo | — | 2026 | — | 2.2 | Industry synthesis (Buildermuse / vendors); Network World on H200 allocation (2026) |
| revenue per GW of AI capacity per year — the prize the delivery model protects by saving months (contested — single-source) · contested | ~$12–13B/GW/yr | — | 2026-06 | — | 2.2 | SemiAnalysis ('To Boldly Go', Jun 2026) |
| downtime the commissioning agent's IST exists to prove (vs Tier III ~1.6 hr/yr) | Tier IV ~26 min/yr | — | 2025 | — | 2.2 | Uptime Institute |
| data-center load dropped in the six-fault, 82-second July-2024 Northern Virginia disturbance — the failure independent Cx and OE exist to prevent | ~1.5 GW in 82 s | — | 2024-07 (event); 2026 (alert) | — | 2.2 | NERC incident review / Level 3 Alert (2026); Utility Dive |
| GSU transformer lead time (standard power transformer ~128 wk); up to ~60 mo in constrained markets | ~144–160+ wk | 2026 | — | 2.3 | Wood Mackenzie / VAWN index / POWER Magazine (mid-2026) | |
| HV switchgear & circuit-breaker lead time — HV breakers with little improvement since the ~151-wk late-2023 peak; HV GIS and full substations 3–5 yr | ~100–155 wk | — | 2025-11 | — | 2.3 | Duke Nicholas Institute / Wood Mackenzie via The Conversation (2025-11); Build.inc (2026) |
| JLL global / US average data-center equipment lead time across packages | ~33–42 weeks | — | 2025 | — | 2.3 | JLL equipment lead-time index |
| diesel genset lead time (1.25–3.25 MW class); largest engines to ~78 wk | 52–70 weeks | 2026-05 | — | 2.3 | GlobalPwr (2026-05): 52–70 wk for 1,250–3,250 kW; JLL 2026 Outlook: >50 wk Americas, >75 wk EMEA; CPM Pros | |
| TSMC CoWoS 2026 demand ~fully booked; NVIDIA holds ~50–60% of allocation | ~1M wafers | — | 2026 | — | 2.3 | SemiAnalysis / Silicon Analysts |
| CDU lead time (direct-to-chip liquid cooling) — 16–24 wk standard, 26–52 wk in the current queue | ~16–52 wk | — | 2026-03 | — | 2.3 | The Cooling Report supply-chain guide 2026; CPM Pros; Dell'Oro |
| Blackwell (B200/GB200) allocation backlog for new orders | ~12 mo | — | 2024-10 | — | 2.3 | Morgan Stanley via Data Center Dynamics (2024-10-11) |
| NVIDIA cloud GPU availability, all shipping generations — 'Blackwell sales are off the charts, and cloud GPUs are sold out' | sold out | — | 2025-11 | — | 2.3 | NVIDIA Q3 FY2026 results (2025-11-19) |
| HBM3E sold out through 2026; ~30% supply gap; +15–20%/quarter price rises | HBM3E sold out | — | 2026 | — | 2.3 | SemiAnalysis / TrendForce |
| GE Vernova gas-turbine backlog + slot reservations (44 GW firm + 56 GW reservations) | 100 GW | — | 2026-Q1 | — | 2.3 | GE Vernova Q1-2026 results (22 Apr 2026) |
| US Section 232 duty on semi-finished copper (Aug 2025); electrical grid equipment got a 15% transitional rate | 50% tariff | — | 2025–2026 | — | 2.3 | White House / CBP / Congress.gov |
| typical performance-LD cap as a share of EPC contract price (range 5-25%); ~10-20% overall liability cap | 10-15% | — | 2025 | — | 2.4 | Womble Bond Dickinson; EPC-market practice |
| HV / GSU power-transformer lead time setting equipment-delivery risk in supply agreements; up to ~60 mo constrained | ~128–160+ wk | 2026 | — | 2.4 | Wood Mackenzie / VAWN index / POWER Magazine (mid-2026) | |
| large-load grid interconnection lead time the LGIA/ISA milestones must bind around; up to ~10 yr worst queues | ~3–7+ yr | — | 2026 | — | 2.4 | LBNL Queued Up; ERCOT / PJM filings |
| security deposit demanded under a US large-load tariff, paired with a 15-yr contract and minimum-demand charges | $2.7M / MW | — | 2025 | — | 2.4 | Davis Graham / utility large-load tariff filings |
| take-or-pay floor and minimum term in Ohio's large-load tariff (pay 85% of contracted capacity, 12-yr minimum) | 85% / 12 yr | — | 2025 | — | 2.4 | Utility Dive / Ohio PUCO tariff |
| transmission-service options FERC ordered PJM to offer co-located load (firm / non-firm contract-demand, interim non-firm, NITS) | 4 options | — | 2025 | — | 2.4 | FERC PJM co-located load order (Dec 18, 2025) |
| rack-level uptime SLA already offered by leading neoclouds (CoreWeave, Oracle); service-credit-backed | 99% | — | 2025 | — | 2.4 | SemiAnalysis ClusterMAX 2.0 |
| US states with at least one approved large-load tariff governing data-center grid contracts (7 more pending) | 23 states | 2026-05 | — | 2.4 | Columbia Climate Law (Sabin Center) / state tariff tracking | |
| CoreWeave DDTL 4.0 (Mar 2026): first investment-grade-rated GPU-backed financing; SOFR+2.25% floating / ~5.9% fixed, matures 2032 | $8.5B / A3 / A(low) | — | 2026 | — | 2.5 | CoreWeave investor release; Moody's / DBRS; Bloomberg |
| data-center build 2025-2028 and the financing gap beyond hyperscaler cash flow | ~$2.9T / ~$1.5T | 2025 | — | 2.5 | Morgan Stanley Research, Bridging the Data Center Gap | |
| total data-center ABS issuance 2025 → projected 2028 (first refinancing wave) — ABS only, not GPU-backed | ~$8B (2025) → ~$25B (2028) | — | 2025-05 | — | 2.5 | Morgan Stanley; RBCCM / SFA synthesis |
| breakeven utilization for a debt-financed cluster; 1,024-GPU H100 swings -$330k to +$340k/mo (the DSCR driver) (contested — single-source) · contested | ~70% | 2026 | — | 2.5 | AM Compute (2026; single-source unit-economics model) | |
| GPU residual after 3 yr (CONTESTED); rental rates -64-75% from peak — the assumption under every ABS/residual structure · contested | ~20-40% | — | 2025 | — | 2.5 | Hashrate Index / CNBC synthesis |
| CoreWeave backlog vs revenue — single-anchor concentration; FY25 rev $5.13B, interest ~40% of adj. EBITDA | ~$99.4B (~19x) | 2026-03 | — | 2.5 | CoreWeave Q1 2026 earnings press (SEC EDGAR) | |
| energy: largest controllable opex line in the 1 GW model — why the PPA is a financing precondition | ~$0.6B/yr | — | 2026 | — | 2.5 | Epoch AI / SemiAnalysis synthesis |
| CoreWeave DDTL cost-of-capital compression, 2023 (DDTL 1.0 floating) → 2026 (DDTL 4.0 fixed) as the sponsor de-risked | ~15% → ~5.9% | — | 2026 | — | 2.5 | CoreWeave |
| projected global data-center-linked insurance premium by 2030 (from ~$10.6B), fastest-growing property line | ~$24.2B | — | 2026 | — | 2.6 | Swiss Re Institute (sigma) |
| data-center construction-related coverage premium projected for 2026 — ~2x the global aviation market | ~$10B | 2026 | — | 2.6 | S&P Global Ratings | |
| share of total data-center loss costs now liquid/water-related (near-nonexistent in air-cooled halls) | ~24% | — | 2026 | — | 2.6 | Swiss Re |
| fire's share of loss cost vs share of loss events — rare but catastrophic (15-yr study) | 42% / 11% | — | 2025 | — | 2.6 | FM (FM Global) |
| single-program lifecycle capacity (CAR + DSU + operational PD/BI) assembled because single carriers can't cover a hyperscale campus | up to $5B | — | 2026-07 | — | 2.6 | Aon (program expansion, Jul 2026) |
| US data-center capacity in 3+ large-hail-day zones / significant tornado zones — the nat-cat accumulation problem | ~25% / ~40% | — | 2026 | — | 2.6 | Swiss Re |
| typical cost of GPU residual-value insurance, netted from the loan's interest yield; covers shortfall to ~80% of the warrantied floor | ~150 bps/yr | — | 2025 | — | 2.6 | American Compute / USD.AI |
| calibration agreement of mature data-center CFD vs measured readings, given accurate boundary conditions | 1–5% | — | 2025 | — | 2.7 | Cadence Reality / Future Facilities 6SigmaDCX; independent validation (Compass, Binghamton) |
| GB200 NVL72 heat split — removed by liquid vs by air; the CFD must validate both loops | ~115 / ~17 kW | 2025 | — | 2.7 | HPE QuickSpecs (OEM 115/17 split); 132 kW all-in Vertiv/NVIDIA + 451 Research | |
| GPU throttle on a coolant inlet/flow deviation outside the DLC envelope — the cost of a wrong thermal model | up to ~50% | — | 2025 | — | 2.7 | NVIDIA GB200 NVL72 DLC spec |
| share of site demand from cooling (VFD-driven motor load) that injects harmonics into power-system studies | ~40% | 2025 | — | 2.7 | ENERGY STAR | |
| back-end fabric cost avoided with 2:1 oversubscription (virtual-modular-switch design) vs the non-oversubscribed reference — where the workload allows (contested — single-source) · contested | ~31% | 2024 | — | 2.7 | SemiAnalysis, AI Neocloud Playbook and Anatomy | |
| industry-average vs best-in-class training goodput — the spread a discrete-event model lets you size against | ~90% / ~96% | 2025 | — | 2.7 | SemiAnalysis ClusterMAX 2.0 / CoreWeave | |
| best-in-class H100 fleet failure rate feeding the goodput/availability model (new clusters far worse) | ~1 / 512 GPUs / wk | — | 2025 | — | 2.7 | SemiAnalysis (100k H100 clusters) |
| first NVIDIA Omniverse DSX reference designs validated as a high-fidelity digital twin before construction begins | gigawatt-scale | — | 2025 | — | 2.7 | NVIDIA Omniverse DSX / Vera Rubin DSX blueprint |
| US generator interconnection queue, active end-2025 (gen + storage; down from ~2,290 GW end-2024) | >2,060 GW | — | end-2025 | — | 3.1 | LBNL, US interconnection queue data through 2025 (May 2026) |
| ERCOT large-load interconnection queue, mid-2026 (~89% data centers; 63→233→438+ GW arc) | 438+ GW | — | 2026-06 | — | 3.1 | ERCOT news release (18 Jun 2026) |
| PJM application-to-commercial-operation timeline (vs <2 yr in 2008) | >8 yr | — | 2025 | — | 3.1 | RMI / PJM filings |
| AI data center construction time — the grid, not the build, is the long pole | 18–24 mo | — | 2026 | — | 3.1 | Mastt; Data Center Knowledge |
| revenue per GW of AI capacity per year; ~–.0–1.3B for 200 MW online 6 mo early (contested — single-source) · contested | ~$12–13B/GW/yr | — | 2026-06 | — | 3.1 | SemiAnalysis ('To Boldly Go', Jun 2026) |
| behind-the-meter gas announced cumulatively by 2026 (~82 GW announced in 2025; ~2 GW operating today) | ~90 GW | — | 2026-07 | — | 3.1 | Cleanview, 'Bypassing the Grid' (mid-2026) |
| practical sub-50 ms inference reach (50 ms RTT ⇒ ~5,000 km propagation-only; switching/queuing/compute overhead and the ~1.3–1.5× fiber route factor cut it to practical reach) | ~1,000–1,500 km | 2025 | — | 3.1 | derived (guide analysis; fiber/latency, route factor → 3.6) | |
| fully-built cost of a gigawatt-scale AI campus incl. IT (all-in ~$30/W; ~$38B total-program with land, build-out, financing) | ~$30–40B | — | 2026 | — | 3.1 | cross-ref: Ch 6.3 (McKinsey ~$30/W) / Ch 1.8 (Epoch AI ~$38B) |
| US interconnection queue end-2025 (end-2024: ~2,290 GW = ~1,400 GW gen + ~890 GW storage, ~10,300 projects) | >2,060 GW | — | end-2025 | — | 3.2 | LBNL, US interconnection queue data through 2025 (May 2026) |
| median interconnection request-to-COD for projects built 2018–2024 (doubled from <2 yr in 2000–2007) | >5 years | 2026 | — | 3.2 | LBNL, Queued Up: 2025 Edition | |
| large-load interconnection end-to-end; PJM application-to-COD has exceeded 8 yr; up to ~10 yr in worst queues | ~3–7+ yr | — | 2026 | — | 3.2 | LBNL Queued Up; ERCOT / PJM filings |
| large-load requests ERCOT is tracking (~89% data centers; 63 GW end-2024 → 233 GW end-2025 → 438 GW Jun 2026) | 438+ GW | — | 2026-06 | — | 3.2 | ERCOT news release (18 Jun 2026) |
| of projects requesting interconnection 2000–2018 (LBNL-tracked US queues) had reached commercial operation by end-2023 — 14% by capacity; most of the rest withdrew | ~19% | 2024 | — | 3.2 | LBNL, Queued Up: 2024 Edition | |
| new US load integratable at just 0.5% annual curtailment (avg event ~2 hr) — the flexibility headroom | ~98-100 GW | — | 2025 | — | 3.2 | Nicholas Institute / Duke 'Rethinking Load Growth' synthesis |
| HV/substation power-transformer lead time (~128 wk average power transformer, ~143–144 wk GSU, WoodMac Q2 2025; large-unit quotes have ranged ~80–210 wk; up to ~60 mo in constrained markets) — the schedule-dominating long pole | ~128–160+ wk | 2026 | — | 3.2 | Wood Mackenzie / VAWN index / POWER Magazine (mid-2026) | |
| AI-capacity revenue value of speed; energizing 200 MW six months early ≈ –.0–1.3B incremental revenue (contested — single-source) · contested | ~$12–13B/GW/yr | — | 2026-06 | — | 3.2 | SemiAnalysis ('To Boldly Go', Jun 2026) |
| power as a share of AI data center operating cost; the largest single opex line at scale | 25-60% | 2026 | — | 3.3 | Epoch AI 1 GW TCO model | |
| energy cost in the canonical 1 GW model — the single largest opex line | ~$0.6B/yr | — | 2026 | — | 3.3 | Epoch AI / SemiAnalysis synthesis |
| average commercial rate in the top-10 US data center states (≈ identical to other states) | ~14.4-14.5¢/kWh | — | 2025-26 | — | 3.3 | Electric Choice / RealClearEnergy synthesis |
| Texas average commercial retail electricity price — among the lowest in the US (statewide all-in average; competitive-supply quotes in deregulated ERCOT territories run lower) | ~8.4¢/kWh | Apr 2026 | — | 3.3 | EIA Electric Power Monthly, Table 5.6.A | |
| new Virginia data-center electricity consumption tax (effective Jul 1 2026, sunsets Jul 1 2028) — an added cost line | $0.011/kWh | — | 2026 | — | 3.3 | Virginia HB30 (2026 budget, Item 3-5.24); Data Center Knowledge |
| revenue per GW of AI capacity — the prize that power cost is netted against (contested — single-source) · contested | ~$12–13B/GW/yr | — | 2026-06 | — | 3.3 | SemiAnalysis ('To Boldly Go', Jun 2026) |
| large-load interconnection lead time; up to ~10 yr in worst queues — the availability gate | ~3–7+ yr | — | 2026 | — | 3.3 | LBNL Queued Up; ERCOT / PJM filings |
| US grid headroom integratable at 0.5% annual curtailment — the basis for flexible/non-firm deals | ~98-100 GW | — | 2025 | — | 3.3 | Nicholas Institute / Duke 'Rethinking Load Growth' synthesis |
| behind-the-meter data-center generation announced cumulatively by mid-2026 (~82 GW of it since Jan 2025); ~2 GW online → 2.8-3.2 GW by year-end (→ 4.9) | ~90 GW | — | 2026-07 | — | 3.4 | Cleanview, 'Bypassing the Grid' (mid-2026) |
| grid interconnection lead time (large load); PJM application-to-COD over 8 yr; up to ~10 yr worst queues | ~3–7+ yr | — | 2026 | — | 3.4 | LBNL Queued Up; ERCOT / PJM filings |
| AI revenue per GW; energizing 200 MW six months early worth ~-.0-1.3B (contested — single-source) · contested | ~$12–13B/GW/yr | — | 2026-06 | — | 3.4 | SemiAnalysis ('To Boldly Go', Jun 2026) |
| Google global 24/7 CFE score 2024; 9 of 20 regions above 80%, Asia-Pacific ~12% | ~66% | — | 2025 | — | 3.4 | Google 2025 Environmental Report / Moving toward 24x7 CFE |
| nuclear contracted by hyperscalers: TMI/Crane 835 MW (~2028), Amazon-Talen ~2 GW, Kairos SMR ~500 MW (~2030-35) | >10 GW | — | 2025-2026 | — | 3.4 | DataCenterDynamics; SMR Intel; filings |
| Q1 2026 projected VPPA settlement value, wind vs solar — solar cannibalized to ~zero | ~€15 vs ~€0/MWh | — | 2026 | — | 3.4 | NZCB VPPA Opportunity Index |
| industrial gas-fired LCOE for on-site/BTM power, above projected ERCOT grid prices | >~$120/MWh | 2026 | — | 3.4 | ISO/EPRI | |
| PJM contract-demand transmission services (firm / non-firm / interim non-firm) created by FERC co-location order, compliance from early 2026, ~2028 transition | 3 new | — | 2025 | — | 3.4 | FERC order Dec 18, 2025 |
| revenue per GW of AI capacity; ~–.0–1.3B from getting 200 MW online 6 months early (contested — single-source) · contested | ~$12–13B/GW/yr | — | 2026-06 | — | 3.5 | SemiAnalysis ('To Boldly Go', Jun 2026) |
| planned US behind-the-meter capacity tracked; ~90% announced in 2025; ~2 GW online mid-2026, 2.8–3.2 GW by year-end | ~90 GW / 59 projects | 2026-07-03 | — | 3.5 | Cleanview (Bypassing the Grid) | |
| reciprocating-engine simple-cycle efficiency (highest of any combustion tech); ~2-min start, 10% min load, 12–18 mo lead | 45–48% | 2026 | — | 3.5 | POWER Magazine; Wärtsilä | |
| H/HA-class combined-cycle efficiency vs 37–48% simple cycle; 3–5+ yr lead, 24–36 mo install | >60–64% | — | 2025 | — | 3.5 | Mitsubishi Power; Grid Capacity Intelligence |
| Bloom–Oracle SOFC framework (1.2 GW initially contracted); near-zero criteria pollutants; ~$3,000–4,000/kW | up to 2.8 GW | — | 2026 | — | 3.5 | Bloom Energy IR / press |
| aeroderivative turbine lead time (refurb under 12 mo; some cores quoted to ~243 weeks) — new-build order slots quoted for 2028–2030 as of 2026 | 18–36 mo+ | 2025 | — | 3.5 | 2025 synthesis; Data Center Frontier / power-eng aeroderivative coverage (2026) | |
| solar/wind overbuild for firm off-grid 24/7; firmed ideal-site solar ~$113/MWh (2025) → ~$77/MWh (2030) (contested — single-source) | ~7x | 2026 | — | 3.5 | LUT University, Energy (2026), via pv magazine | |
| SMR first-of-a-kind capex; restarts ~2027–28, SMR scale 2032–2035; ~10% of DC demand growth by 2035 · contested | ~$6,000–13,000/kW (OCC) | — | 2024-09 | — | 3.5 | DOE Pathways to Commercial Liftoff: Advanced Nuclear (Sept 2024); cross-check SMR Intel (2026) |
| one-way propagation delay in single-mode fiber (index ~1.47); ~5 us/km rule of thumb, ~10 us/km round-trip | ~4.9 µs/km | 2025 | — | 3.6 | M2 Optics; MapYourTech (5-microsecond rule) | |
| round-trip propagation floor added by 1,000 km of fiber, before any switching or queuing | ~10 ms | — | 2025 | — | 3.6 | M2 Optics; fiber-latency physics |
| end-to-end RDMA fabric latency (NIC-to-NIC through one switch hop): InfiniBand ~1–2 µs, tuned RoCEv2 ~1.5–2.5 µs — microseconds, vs milliseconds for WAN | ~1–2.5 us | — | 2025 | — | 3.6 | SemiAnalysis / NVIDIA |
| less inter-site data exchanged by DiLoCo-class intermittent sync vs full synchronous DP — what makes cross-region training viable | 100–500x | — | 2025 | — | 3.6 | Google DeepMind DiLoCo; Epoch AI |
| end-to-end target for latency-sensitive inference; ~100 ms is the human 'instantaneous' threshold | sub-50 ms | — | 2026 | — | 3.6 | HumAI; practitioner edge-inference benchmarks |
| of candidate sites eliminated at the fiber-diligence stage in many markets — for route diversity, not power | ~50% | — | 2025 | — | 3.6 | Global Data Center Hub (fiber-as-bottleneck) |
| construction cost for dual diverse new-build fiber routes, before the permitting and make-ready tail | ~$150k/mile | — | 2025 | — | 3.6 | Global Data Center Hub; Netrality |
| fiber pairs per path, on physically diverse routes, below which AI-grade sites are viewed as functionally stranded | 24–48 pairs | — | 2025 | — | 3.6 | Global Data Center Hub |
| indirect (Scope 2, grid) water vs direct (Scope 1, on-site) water for US data centers | ~12x | — | 2023 | — | 3.7 | LBNL 2024 US Data Center Energy Usage Report |
| US data-center direct water consumption, 2023 actual to 2028 projected range | 17 → 38-73 bn gal | 2023-2028 | — | 3.7 | LBNL; EESI synthesis | |
| peak-summer withdrawal for a ~100 MW evaporatively-cooled campus (WUE-derived; Google Council Bluffs, a larger campus, consumed ~2.8M gal/day, 2024) | ~1.5-3 M gal/day | — | 2024-2025 | — | 3.7 | Google water disclosures; Apstech Advisors |
| Microsoft FY2025 fleet WUE; next-gen closed-loop designs approach ~0 | ~0.27 L/kWh | 2025 | — | 3.7 | Microsoft FY2025 Environmental Sustainability Report / Microsoft Datacenters efficiency disclosure | |
| industry-average WUE (evaporative); best-in-class 0.3-0.7; closed-loop ~0 | ~1.8–1.9 L/kWh | — | 2025 | — | 3.7 | Vertiv / NREL synthesis |
| Texas average data-center water intensity; ~49 bn gal statewide by end-2025 | ~793 gal/MWh | 2025 | — | 3.7 | Houston Advanced Research Center (HARC), 'Thirsty Data and the Lone Star State' | |
| annual free-cooling hours in a Nordic climate; PUE as low as ~1.09 | ~7,000-8,000+ hr | — | 2025 | — | 3.7 | w.media |
| US state data-center water bills proposed per session; ~2-4 enacted 2025-2026 | 30+ bills / 13-16 states | — | 2025-2026 | — | 3.7 | MultiState legislative tracking |
| acres per MW of IT on GW-scale AI campuses (full campus incl. substation/cooling yard) | 0.7–0.9 | — | 2025–2026 | — | 3.8 | Reuters / operator filings (Hyperion, Stargate) |
| GB200 NVL72 wet rack weight (≈3,000 lb) — sets the structural floor-loading basis | ~1.36 t | — | 2025 | — | 3.8 | NVIDIA OCP / OEM datasheets (HPE, Lenovo, Supermicro) |
| uniform live-load basis for liquid-cooled AI halls (vs ~150 psf legacy); column loads >1,000 kips | 250–500+ psf | — | 2025 | — | 3.8 | Geopier; StructureMag; TechTarget |
| flood hazard area for Risk Category II+ under ASCE 7-22 Supplement 2; ASCE 24 freeboard on critical facilities | 500-yr (0.2%) | — | 2024–2025 | — | 3.8 | ASCE/SEI 7-22 Supplement 2; ASCE 24 |
| code-assigned Risk Category for a typical data center is II; mission-critical owners often elect RC III/IV seismic performance (importance factor, operability) as an owner requirement, not a code mandate | RC II code / III–IV elective | — | 2025 | — | 3.8 | ASCE 7 / IBC; Langan |
| Phase I ESA cost per site (ASTM E1527-21); ~2–3 weeks to report; higher for industrial brownfields | $2,200–4,000 | — | 2026 | — | 3.8 | K2 Environmental |
| share of gross campus acreage that is non-buildable on a typical large parcel (setbacks, buffers, floodplain, infra yards) | ~50% | — | 2025 | — | 3.8 | Practitioner developable-ratio heuristic |
| distinct approvals/permits/sign-offs across federal, state, grid, and local layers for a large campus | 50+ | — | 2026 | — | 3.9 | CRS R48762; Dgtl Infra / practitioner build-lifecycle guides |
| EO 14318 Qualifying-Project thresholds for accelerated federal permitting & new categorical exclusions | $500M / 100 MW | — | 2025 | — | 3.9 | EO 14318 (White House); Federal Register 90 FR 35385 |
| Seven County v. Eagle County ruling narrowing NEPA scope; explicitly names data centers | 8-0 | — | 2025 | — | 3.9 | U.S. Supreme Court (23-975), May 29 2025 |
| EU EED data-center reporting threshold (~31 data points incl. PUE/WUE/ERF/REF; due 15 May annually) | ≥500 kW | — | 2024 (in force) | — | 3.9 | European Commission; Delegated Reg. (EU) 2024/1364 |
| large-load grid interconnection lead time; up to ~10 yr in worst queues — the usual long pole | ~3–7+ yr | — | 2026 | — | 3.9 | LBNL Queued Up; ERCOT / PJM filings |
| FERC RM26-4 proposed large-load federal-interconnection threshold (DOE Sec. 403); on 18 Jun 2026 FERC opened §206 show-cause proceedings against all six RTOs/ISOs, docket left open | >20 MW | — | 2026-06 | — | 3.9 | FERC RM26-4; §206 show-cause orders (18 Jun 2026) |
| air-permit lead time: minor-source 6-12 mo vs PSD/nonattainment NSR 18-36+ mo for combustion bridge power | 6-36+ mo | — | 2026 | — | 3.9 | EPA CAA resources for data centers; Nixon Peabody |
| typical shell construction time — shorter than interconnection, so 'built' precedes 'energized' | 12-24 mo | — | 2026 | — | 3.9 | Data Center Knowledge; practitioner build-lifecycle guides |
| Texas sales-tax revenue forgone to the data-center exemption (~$1B+/yr) | ~$3.2B / 2 yr | — | 2026 | — | 3.10 | Texas Comptroller; Texas Tribune |
| Georgia FY26 estimated exemption cost — a 664% jump over the prior $327M estimate | ~$2.5B | 2026 | — | 3.10 | GA Governor's Office of Planning & Budget, via AJC / Good Jobs First; Stateline | |
| Virginia data-center sales-and-use tax exemption benefit reported for FY2025; the Senate's proposed Jan 2027 phase-out was not adopted — the final 2026 budget retained the exemption | ~$1.94B (FY2025) | Jul 2026 | — | 3.10 | Virginia Department of Taxation, DCRSUT Exemption Report (RD40, 2026) | |
| US states moving to pause, cap, condition, or repeal data-center tax breaks | ~2 dozen states | — | 2026 | — | 3.10 | Stateline; MultiState |
| Texas Chapter 312 property-tax abatement of eligible incremental property value, locally negotiated for up to 10 years | up to 100% | 2025 | — | 3.10 | Texas Comptroller of Public Accounts | |
| take-or-pay floor in the Oregon POWER Act / Schedule 96 large-load tariff template | ~90% min-demand | — | 2026 | — | 3.10 | Oregon PUC; Utility Dive; OPB |
| share of distribution/transmission upgrade borne by the load under the large-load tariff template | 100% upgrade cost | — | 2026 | — | 3.10 | Oregon PUC; Environment+Energy Leader (23 states) |
| indicative individual GBER aid ceiling per undertaking in the draft 2026 EU state-aid regime | €30M / project | — | 2026 | — | 3.10 | European Commission GBER consultation; Hogan Lovells |
| data-center projects blocked or delayed in Q1 2026 (75+ projects) — matching all of 2025 in one quarter | ~$130B | — | Q1 2026 | — | 3.11 | Data Center Watch / 10a Labs; NBC News, Tom's Hardware |
| active local opposition groups across 49 states (more than doubled YoY) | 833 | — | Q1 2026 | — | 3.11 | Data Center Watch / 10a Labs |
| data-center share of PJM's $16.4B capacity-auction cost — the cost-shift driver | ~$6.5B (40%) | — | 2026 | — | 3.11 | PJM market monitor; Utility Dive |
| typical residential bill increase attributed in part to data-center demand (Dominion; PJM hubs $16-18/mo) | ~$16/mo | — | 2026 | — | 3.11 | Inside Climate News; IEEFA |
| with at least one approved large-load tariff (7 more pending) ring-fencing DC costs | 23 states | 2026-05 | — | 3.11 | Columbia Climate Law (Sabin Center) / state tariff tracking | |
| Americans opposing a local data center / worried it raises their energy bill | ~70% / 78% | — | 2026 | — | 3.11 | Consumer Reports; survey synthesis |
| state data-center bills filed in 30+ states in the first six weeks of 2026 | 300+ bills | — | 2026 | — | 3.11 | MultiState; ArentFox Schiff |
| representative property-tax abatement / PILOT term (Arkansas IDB-financed example) | up to 65% / 30 yr | — | 2026 | — | 3.11 | NW Arkansas Democrat-Gazette; NCSL |
| US AI-chip export policy changes in 12 months (Diffusion Rule published → rescinded → H20 gated → un-gated w/ tax → China case-by-case) | 5 regime shifts | — | Jan 2025–Jan 2026 | — | 3.12 | US BIS notices; SemiAnalysis AI Diffusion analysis |
| of China-market revenue Nvidia (H20) and AMD (MI308) remit to the US government for export licenses — unprecedented | 15% | — | 2025 | — | 3.12 | US Commerce / Tom's Hardware / Fortune reporting |
| Nvidia H20 inventory/charge taken when the chip was license-gated mid-2025 | $4.5B | — | Q1 FY2026 | — | 3.12 | Nvidia Q1 FY26 8-K (SEC) |
| advanced Nvidia accelerators authorized for the Gulf (G42 + HUMAIN, ~35k each) under the RTE compact | ~70,000 chips | — | Nov 2025 | — | 3.12 | US Commerce statement; CNBC; DCD |
| target capacity of Stargate UAE (G42, OpenAI, Oracle, Nvidia, Cisco, SoftBank) | 1 GW | 2026 | — | 3.12 | Middle East AI News | |
| of non-US data-center capacity (by investment value) operated by US-headquartered firms — the operator-nationality gap | ~48% | — | 2025 | — | 3.12 | arXiv 2508.00932, How Sovereign Is Sovereign Compute? |
| EU Data Act applies — obliges providers to block unlawful non-EU government access to EU-stored data and challenge conflicting requests | Sept 2025 | — | 2025 | — | 3.12 | EU Data Act / Kiteworks GDPR–CLOUD analysis |
| BIS moves named advanced-compute exports to China/Macau from presumption-of-denial to case-by-case review | Jan 15 2026 | — | 2026 | — | 3.12 | US BIS final rule; Baker McKenzie sanctions analysis |
| Northern Virginia market size 2026 (operational + pipeline); ~96% of 2026 scheduled supply already committed, vacancy near zero | ~20 GW | — | 2026 | — | 3.13 | CBRE / Mordor Intelligence; Loudoun County |
| projected ERCOT data-center load in 2028; the same forecast reaches approximately 40.1 GW in 2030 | ~28.2 GW | 2025-12-15 | — | 3.13 | Electric Reliability Council of Texas | |
| share of Ireland's national electricity used by data centers in 2024 (up from ~5% in 2015); ~80% renewable + self-supply mandate to reconnect | 23% | 2025 (published Jul 2026) | — | 3.13 | CSO | |
| Nordic data-center capacity in 2025 (~1.32 GW), forecast to reach ~1.82 GW by 2031; PUE as low as ~1.09 and up to ~8,000 free-air-cooling hours/yr | ~1.32 GW | 2025 estimate; 2031 forecast, page checked 2026-07-14 | — | 3.13 | Mordor Intelligence | |
| planned capacity of Stargate UAE (Abu Dhabi); 1 GW first cluster, ~200 MW first phase targeted 2026 — gated by US chip-export licenses | ~5 GW | — | 2026 | — | 3.13 | G42 / DCD; Stargate UAE announcements |
| Saudi HUMAIN sovereign-AI buildout target by end of decade; chip access via G2G security assurances | ~1.9 GW | 2026 | — | 3.13 | HUMAIN/MIS contract reporting | |
| Singapore wholesale colocation pricing — highest globally; ≥300 MW unlocked via Green DC Roadmap / DC-CFA2 (apps close Mar 2026) | ~$403/kW-mo | 2026 | — | 3.13 | CBRE Global Data Center Trends 2026; IMDA/EDB | |
| revenue per GW of AI capacity per year — the arithmetic that makes speed-to-power the dominant scoring weight across every cluster (contested — single-source) · contested | ~$12–13B/GW/yr | — | 2026-06 | — | 3.13 | SemiAnalysis ('To Boldly Go', Jun 2026) |
| more power through the same conductor (or less copper for equal power) moving from 415 VAC to 800 VDC distribution | 157% / ~61% | 2025-10 | — | 4.1 | NVIDIA Technical Blog, 800 VDC architecture | |
| facility conversion stages collapsed by the 800 VDC chain; end-to-end efficiency ~82% → ~87% | 4 → 2 | — | 2026 | — | 4.1 | NVIDIA / SemiAnalysis 800VDC Revolution |
| utility-to-VRM efficiency: legacy AC span (typical ~82%) vs the SST/800 VDC chain | ~61–87.5% vs ~87% | — | 2025 | — | 4.1 | SemiAnalysis, Datacenter Anatomy Pt 1 / Inside the 800VDC Revolution |
| solid-state transformer efficiency at 400 kW (13.2 kVAC → 800 VDC); ~99% targeted | ~98% | 2025 | — | 4.1 | SemiAnalysis / ETH Zurich INTELEC 2025 | |
| per-rack power roadmap: H100 ~40 kW (2023), GB200 NVL72 ~120–132 kW (2024), Kyber ~600 kW (2027) | ~40 → 600 kW | 2026 | — | 4.1 | SemiAnalysis / NVIDIA roadmap | |
| HV/substation power transformer lead time (up to ~60 months in constrained markets) — the schedule-dominating long pole | ~128–160+ wk | 2026 | — | 4.1 | Wood Mackenzie / VAWN index / POWER Magazine (mid-2026) | |
| AI load lost in the six-fault, 82-second July 2024 NoVA sequence — why ride-through and topology resilience are now first-order design inputs | ~1,500 MW | 2024 | — | 4.1 | NERC Incident Review of the July 2024 event; NERC Level 3 Alert (May 2026) | |
| EU F-gas ban on putting new F-gas-insulated switchgear into operation: <=24 kV (24-52 kV from 2030; GWP>=1 HV bands from 2028/2032; Art. 13 derogations) | 1 Jan 2026 | — | 2026 | — | 4.2 | EU F-Gas Regulation (EU) 2024/573; European Commission |
| SF6 global-warming potential vs CO2 — why the F-gas phase-out is forced | ~24,000x | — | 2026 | — | 4.2 | IPCC / EU F-Gas Regulation |
| fault current from inverter-based sources (vs 5-10x for synchronous machines) — breaks conventional overcurrent grading | ~1.2–1.5x | — | 2025 | — | 4.2 | U.S. Department of Energy OSTI, Inverter-Based DG Impacts on Protection |
| typical HV/MV transformer unit, N+1, to serve ~150 MW peak; ~10% MVA cushion over MW | ~80 MVA x3 | 2026 | — | 4.2 | SemiAnalysis Datacenter Anatomy Pt 1 | |
| ERCOT 'large load' threshold forcing full interconnection + protection study (25 MW = modeling) | 75 MW | — | 2026 | — | 4.2 | ERCOT Large Load Integration; SB6 |
| average MV-class switchgear lead time (Wood Mackenzie Q2 2025); HV breakers and GIS run far longer — see the HV switchgear claim | ~44 wk | — | 2026 | — | 4.2 | Wood Mackenzie / American Clean Power (Making the Connection); corroborated by VAWN electrical lead-time index (~44 wk avg, 2026-06) |
| instantaneous data-center load lost in the six-fault, 82-second 230 kV sequence (July 10 2024 NoVA event) — informed NERC's May 2026 Level 3 alert; ride-through recommended, not yet an enforceable standard | ~1,500 MW | 2024 | — | 4.2 | NERC Incident Review of the July 2024 event; NERC Level 3 Alert (May 2026) | |
| GIS footprint vs equivalent AIS lineup — the compactness premium for constrained/hostile sites | ~1/3 | — | 2026 | — | 4.2 | Siemens Energy / ABB MV switchgear synthesis |
| proposed CLE bright-line: ≥1 MW IT load within ≥20 MW aggregate at a single POI ≥60 kV | ≥1 MW + ≥20 MW | — | 2026 | — | 4.3 | NERC draft registry criteria (Appendix 5B); Steptoe analysis |
| data-center load tripped in the six-fault, 82-second July 2024 230 kV sequence — the synchronized-loss problem | ~1,500 MW | 2024 | — | 4.3 | NERC Incident Review of the July 2024 event; NERC Level 3 Alert (May 2026) | |
| load dropped in a single Virginia disturbance window; basis for NERC's ride-through recommendations (load standards drafting under Project 2026-02) | 1.5 GW / 82 s | — | 2024 | — | 4.3 | NERC / Utility Dive |
| NERC's highest (Essential Actions) alert tier — first used for load, on computational loads | Level 3 | — | 2026 | — | 4.3 | NERC / Davis Wright Tremaine |
| CIP-015 (INSM) effective date; phased compliance Sep 2, 2028 / 2030 | Sep 2, 2025 | — | 2025 | — | 4.3 | FERC Order No. 907; Federal Register |
| NERC standards-development project defining the CLE functional class and obligations | Project 2026-02 | — | 2026 | — | 4.3 | NERC / Climate Solutions Legal Digest |
| power-transformer / GSU lead time — the schedule lever the ownership fork controls | ~128–160+ wk | 2026 | — | 4.3 | Wood Mackenzie / VAWN index / POWER Magazine (mid-2026) | |
| large-load grid interconnection lead time end-to-end; up to ~10 yr in worst queues | ~3–7+ yr | — | 2026 | — | 4.3 | LBNL Queued Up; ERCOT / PJM filings |
| current distortion of a modern AFE/active-PFC AI server PSU by design (vs 30%+ for 6-pulse) | <5% THD | 2025 | — | 4.4 | IEEE 519-2022; AFE rectifier specs | |
| K-rating warranted for AI-hall distribution transformers serving legacy non-linear loads | K-13 to K-20 | 2025 | — | 4.4 | SemiAnalysis; QTE; Eaton | |
| eddy-current heating multiplier of the 5th / 7th / 13th harmonic vs fundamental (∝ order²) | ≈25x / 49x / 169x | — | 2025 | — | 4.4 | NRETEC; CalcPanel K-factor guides |
| IEEE 519 current-distortion (TDD) limit at the PCC, sliding with the Isc/IL short-circuit ratio; voltage THD capped at 5% (1–69 kV) / 8% (<1 kV) | 5–20% TDD | — | 2022 | — | 4.4 | IEEE 519-2022 |
| solid-state transformer efficiency, 13.2 kVAC → 800 VDC (ETH Zurich INTELEC benchmark); ~99% targeted | ~98% @ 400 kW | — | 2025 | — | 4.4 | SemiAnalysis / ETH Zurich |
| end-to-end utility-to-VRM efficiency of the SST/800 VDC chain vs a typical ~82% AC path (best modern AC ~87.5%) | ~87% | — | 2025 | — | 4.4 | SemiAnalysis, Datacenter Anatomy Pt 1 / Inside the 800VDC Revolution |
| HV/substation power-transformer lead time (≈144 wk GSU; to ~60 mo in constrained markets) | ~128–160+ wk | 2026 | — | 4.4 | Wood Mackenzie / VAWN index / POWER Magazine (mid-2026) | |
| projected SST TAM by 2030 / disaggregated power-rack (sidecar) TAM at its 2028 peak | ~$32B / ~$11B | — | 2025 | — | 4.4 | SemiAnalysis, Inside the 800VDC Revolution Pt 1 |
| energy storage integrated in GB300 NVL72 power shelves; ~half the PSU volume is capacitance | 65 J/GPU | — | 2025 | — | 4.5 | NVIDIA Developer Blog / LITEON |
| peak grid-demand reduction demonstrated while training Megatron-LLM with energy-enhanced power shelves | 30% | — | 2025 | — | 4.5 | NVIDIA Developer (GB300 steady power) |
| reported on-rack energy storage on Vera Rubin (~6× GB300), per BESS-for-AI guidance | ~400 J/GPU | 2026 (roadmap) | — | 4.5 | NVIDIA (production-ready BESS for AI factories) | |
| ORV3 BBU ramp to full power on 48.5 V busbar droop; busbar held ≥46 V; PSU ≥97.5% (30–100% load) | <2 ms | 2025 | — | 4.5 | OCP Open Rack V3 / ORV3 BBU spec | |
| EDPp (electrical design power, peak) as the real sizing basis vs nameplate TDP | ~1.5× TDP | — | 2026 | — | 4.5 | Uptime Institute Journal; OCP/Diablo 400 |
| double-conversion loss vs eco-mode/advanced-standby efficiency | 3–5% vs >99% | 2026 | — | 4.5 | Vertiv Liebert EXL S1 UPS datasheet (double-conversion vs eco-mode efficiency) | |
| battery-capacity cut and double-conversion-loss cut from distributed BBU + supercaps vs central 2N | ~50% / 2–3% | — | 2026 | — | 4.5 | SemiAnalysis; Eaton 800 VDC reference architecture |
| instantaneous data-center load lost in the six-fault, 82-second July 2024 NoVA sequence — the macro symptom of the transient problem | ~1,500 MW | 2024 | — | 4.5 | NERC Incident Review of the July 2024 event; NERC Level 3 Alert (May 2026) | |
| GB200 NVL72 rack draw (≈132 kW TDP class, ~120 kW continuous); rack busbar ~2,800 A at 48 V | ~132 kW | 2025 | — | 4.6 | 115/17 split: HPE QuickSpecs (OEM); ~132 kW all-in: Vertiv/451 | |
| Rubin Ultra Kyber-class rack on 800 VDC; shelves disaggregate to a sidecar | ~600 kW | — | H2 2027 (announced) | — | 4.6 | NVIDIA GTC (Jensen Huang); DCD, Tom's Hardware |
| OCP ORV3 HPR power shelf output (6×~5.5 kW rectifiers; ~27.5 kW at N+1) onto the 48V busbar | 33 kW | — | 2024 | — | 4.6 | Advanced Energy/Artesyn ORV3 HPR datasheet; Delta 33 kW ORV3 (OCP) |
| overhead busway ampacity AI halls now spec (vs legacy 400 A); named product lines top out at 1,000 A (Eaton PowerWave 2: 250–1,000 A) | 800–1,000 A | — | 2025-09 | — | 4.6 | Eaton |
| rack power per ampere from 208V→415V three-phase: halves current, quarters I²R loss | ~2× | — | 2025 | — | 4.6 | Server Technology 415V PDU guidance |
| SELV touch-safety ceiling that fixes the OCP rack bus at 48V (no DC-arc service procedures) | <60 V | — | 2025 | — | 4.6 | OCP ORV3 base spec; IEC 60364 |
| in-rack copper NVLink cables in an NVL72 — the copper-mass reality that drives the busbar-cooling fork | 5,184 | — | 2025 | — | 4.6 | SemiAnalysis GB200 architecture |
| SST efficiency at 400 kW (13.2 kVAC→800 VDC), the single-stage path feeding the in-rack rail | ~98% | 2025 | — | 4.6 | SemiAnalysis / ETH Zurich INTELEC 2025 | |
| end-to-end utility-to-VRM efficiency on the 800VDC/SST chain (vs ~61–87.5% legacy AC, typical ~82%) | ~87% | — | 2025 | — | 4.7 | SemiAnalysis, Datacenter Anatomy Pt 1 / Inside the 800VDC Revolution |
| SST efficiency, 13.2 kVAC → 800 VDC at 400 kW (prototype) | ~98% | 2025 | — | 4.7 | SemiAnalysis / ETH Zurich INTELEC 2025 | |
| more power through the same wire gauge, 3-wire DC (POS/RTN/PE) vs 4-conductor 415 VAC — NVIDIA's Oct 2025 framing; its May 2025 basis gave ~85%. Topology-specific vendor comparison, not a constant | +157% | — | 2025-26 | — | 4.7 | NVIDIA, Building the 800 VDC Ecosystem (Oct 2025) |
| Mt. Diablo / Diablo 400 bipolar rail, chosen to ride the EV supply chain | ±400 VDC | — | 2025 | — | 4.7 | OCP Diablo 400 spec; Google (OCP EMEA) |
| Rubin Ultra Kyber-class rack the 800 VDC architecture targets | ~600 kW | — | H2 2027 (announced) | — | 4.7 | NVIDIA GTC (Jensen Huang); DCD, Tom's Hardware |
| targeted UL listing for the first SST in NVIDIA's MGX reference (DG Matrix) | ~Q2 2026 | — | 2026 | — | 4.7 | SemiAnalysis, Inside the 800VDC Revolution |
| ±400 VDC HVDC cables feeding an IT rack from the sidecar (Diablo later rev) | 16 × 50 kW | 2026 | — | 4.7 | OCP Diablo 400 v0.7.0 | |
| first commercial 800 VDC power products (Vertiv, Schneider, Eaton, Delta), aligned to Kyber | H2 2026 | — | 2026 | — | 4.7 | DataCenterDynamics; vendor releases |
| ABB orders to VoltaGrid (27 booked through 2025 + 35 in Mar-2026 extension), with flywheel + eHouse, for islanded data-center stability | 62 sync condensers | — | 2026 | — | 4.8 | ABB / DataCenterDynamics |
| Tesla Megapacks deployed at xAI Colossus from Nov-2025 for power smoothing, ride-through, voltage/frequency support of a ~2 GW cluster | >$375M | — | 2025-26 | — | 4.8 | DataCenterDynamics / SemiAnalysis |
| VoltaGrid generation for Vantage's ~1.4 GW IT load (~64% overbuild) — the PUE x redundancy x derate stack made concrete | ~2.3 GW | 2026 | — | 4.8 | Power Engineering | |
| 200 MW / 275 kV transmission-connected grid-forming BESS delivering inertia and short-circuit stability services (Zenobē Blackhillock Phase 1, NESO Stability Pathfinder); transmission-level BESS black start not yet demonstrated | 200 MW / 275 kV | 2025 | — | 4.8 | Zenobē Blackhillock Phase 1 launch; NESO Distributed ReStart for distribution-scale black start | |
| on-board capacitance shaping the sub-ms edge: ~65 J/GPU (GB300) to ~400 J/GPU (Vera Rubin) before the bus ever sees the pulse | ~65–400 J/GPU | — | 2026 | — | 4.8 | NVIDIA / SemiAnalysis |
| real-power injection window of BESS/flywheels — the bridge from the ms GPU step to the genset's seconds-to-minutes ramp | 5–30 s | — | 2025 | — | 4.8 | Revterra |
| reciprocating-engine ramp and time-to-full-load — fast for combustion, still geological vs a ms GPU step | >100%/min · ~2 min | — | 2025 | — | 4.8 | Grid Capacity Intelligence / Data Center Frontier |
| instantaneous data-center load lost in the six-fault, 82-second July 2024 NoVA sequence — the event that made ride-through and islanding first-order planning inputs | ~1,500 MW | 2024 | — | 4.8 | NERC Incident Review of the July 2024 event; NERC Level 3 Alert (May 2026) | |
| behind-the-meter gas announced cumulatively by mid-2026 (~60 GW with equipment orders, ~two-thirds of projects; only ~1 GW under construction) | ~90 GW | — | 2026-07 | — | 4.9 | Cleanview, 'Bypassing the Grid' (mid-2026) |
| AI-driven incremental US gas demand projected by 2030; US gas demand to ~150 Bcf/d by 2031 | ~6 Bcf/d | — | 2030-2031 | — | 4.9 | SemiAnalysis / RAND; INGAA |
| additional US pipeline capacity INGAA projects is needed by 2052 to serve load growth | +39% | — | 2025 | — | 4.9 | Natural Gas Intelligence / INGAA |
| allowable Modified Wobbe Index swing vs the turbine-specific target: ±5% outer bound (GE), ±1–3% practical for stable DLN operation | ±5% of target | — | 2025 | — | 4.9 | GE GER-4189B, Design Considerations for Heated Gas Fuel |
| energy per LNG truck vs CNG truck; LNG extends economics to ~300 mi, CNG best within ~60 mi | 826 vs 450–550 Dth | — | 2025 | — | 4.9 | Natural Gas Intelligence (LNG/CNG for five-nines) |
| fuel-cost saving from interruptible-service rates vs firm transport (the synthetic-firm incentive) | 30–40%+ | — | 2025 | — | 4.9 | Natural Gas Intelligence; standby-fuel-system analyses |
| fuel burn, simple-cycle turbine vs combined-cycle/fuel-cell — the conditioning/efficiency stakes | ~8–9 vs ~6 MMBtu/MWh | 2025 | — | 4.9 | Grid Capacity Intelligence | |
| reciprocating-engine lead time (needs no boost compression) vs 18–36 mo+ for aeroderivative turbines | 12–18 mo | — | 2025 | — | 4.9 | Data Center Frontier / Grid Capacity Intelligence |
| data-center load lost simultaneously during the six-fault, normally-cleared 230 kV sequence (Eastern Interconnection, July 2024) | ~1,500 MW | 2024 | — | 4.10 | NERC Incident Review of the July 2024 event; NERC Level 3 Alert (May 2026) | |
| successive system faults from the lightning-arrestor failure; voltage sagged to 0.25-0.40 pu for 42-66 ms per fault | 6 faults / 82 s | — | 2025 | — | 4.10 | NERC Incident Review (Jan 2025) |
| post-event over-voltage as ~1.5 GW of load dropped and the grid over-swung high | 1.07 pu | 2025 | — | 4.10 | NERC Incident Review (Jan 2025) | |
| NERC Level 3 "Essential Actions" Alert issued; 7 mandated actions, responses due Aug 3, 2026 | May 4, 2026 | — | 2026 | — | 4.10 | NERC / Morgan Lewis; Utility Dive |
| ERCOT Large Load site threshold; "Large Electronic Load" = ≥50% power-electronic computational demand (NOGRR 282 / NPRR 1308) | ≥75 MW / ≥50% | 2025 | — | 4.10 | ERCOT NOGRR 282 / NPRR 1308 (filed Nov 2025) | |
| SPP demand-facility ride-through floor (0.90-1.10 pu continuous; short excursions to ~0.5 pu) | ~0.50 pu, ~0.15 s | — | 2025 | — | 4.10 | arXiv 2601.12686, Large-Load Interconnection Best Practices (preprint; secondary — cf. SPP demand-facility planning criteria) |
| typical power-factor obligation at the POI for large transmission-connected loads | unity-0.95 lag | — | 2026 | — | 4.10 | ISO/utility large-load tariffs (synthesis) |
| large-load grid interconnection lead time, ISO-dependent; ride-through now a study deliverable | ~3–7+ yr | — | 2026 | — | 4.10 | LBNL Queued Up; ERCOT / PJM filings |
| millisecond idle→peak step of GB300-class racks; phase-coherent, common-mode-injecting load the reference plane must absorb | >150 kW/rack | 2025 | — | 4.11 | Lenovo Press | |
| DC bus voltages replacing the grounded 415/480 VAC neutral at high rack power (Mt Diablo / Diablo 400 is bipolar ±400 V about a grounded midpoint; NVIDIA / OCP 800 VDC designs run ungrounded/HRG or midpoint-referenced — see Ch 4.7) | ±400 / 800 VDC | — | 2026 | — | 4.11 | SemiAnalysis 800VDC Revolution; OCP |
| NVIDIA monopolar 800 VDC power-sidecar reference design (air-cooled samples/production mid-2026; liquid-cooled VR Ultra variant late-2026) — the power rack, not the ~600 kW (2H 2027) Kyber compute rack | ~660 kW | — | 2026 | — | 4.11 | SemiAnalysis, Inside the 800VDC Revolution Pt 1 (May 2026) |
| Type 1 / Class I SPD test waveform (direct-lightning current); Type 2 / Class II uses 8/20 µs | 10/350 µs | — | 2024 | — | 4.11 | IEC 61643-11 / IEC 61643-01:2024 |
| current North American SPD listing basis, ANSI-approved 2025; NEC mandates UL 1449 listing | UL 1449 5th Ed. | — | 2025 | — | 4.11 | UL Standards; NEMA Surge |
| international lightning-protection standard (risk, LPS, SPM, services); NFPA 780 is the NA counterpart | IEC 62305 | — | 2024 | — | 4.11 | IEC; NFPA |
| substation grounding standard bounding step/touch voltage against body-current limits and soil resistivity | IEEE 80 | — | 2013 (current ed.) | — | 4.11 | IEEE Std 80 |
| required grounding-conductor resistance vs ungrounded conductor at 400 / 800 VDC to meet protective grounding class — sizing tightens sharply with voltage | 60% / 23% | — | 2025 | — | 4.11 | Siemens DC-data-center protections paper |
| capacitive energy storage in GB300 NVL72 power shelf for ramp smoothing; ~half the PSU volume | 65 J/GPU | — | 2025 | — | 4.12 | NVIDIA Developer Blog / LITEON |
| peak grid-demand reduction from GB300 power-shelf storage + burn + ramp control | up to 30% | — | 2025 | — | 4.12 | NVIDIA Developer Blog; ServeTheHome |
| targeted on-package + facility capacitance for Vera Rubin closed-loop smoothing | ~400 J/GPU | 2026 (roadmap) | — | 4.12 | NVIDIA (production-ready BESS for AI factories) | |
| IEEE 519-2022 voltage-distortion limit at the PCC for 1-69 kV; 3% per individual harmonic; 8% below 1 kV | 5% THD-V | — | 2022 | — | 4.12 | IEEE 519-2022 (via TCI/Elspec) |
| IEEE 519 current-distortion limit, sliding by Isc/IL short-circuit ratio | 5–20% TDD | — | 2022 | — | 4.12 | IEEE 519-2022 |
| power-budget headroom oversubscription, training vs inference fleets | ~3% vs ~21% | 2024 | — | 4.12 | Patel et al., POLCA (Microsoft Research), ASPLOS 2024 (arXiv 2308.12908) | |
| electrical commissioning level taxonomy (factory test -> integrated systems test) | L1–L5 | — | 2025 | — | 4.12 | Construct & Commission; BMP MEP; CxPlanner |
| utility revenue-meter accuracy class at the point of interconnection | 0.2S / 0.5S | — | 2024 | — | 4.12 | IEC 62053-22 metering practice |
| practical air-cooling ceiling per rack (~41 kW); RDHx bridges ~30–50 kW passive / ~50–100 kW active; DLC supports substantially higher rack densities | ~41 kW | 2025-02-13 | — | 5.1 | SemiAnalysis, Datacenter Anatomy Part 2 – Cooling Systems | |
| volumetric heat capacity of water vs air — the reason liquid operates in a different cooling regime | ~3,500× | 2025 | — | 5.1 | Thermodynamic reference; ASHRAE TC 9.9 | |
| per GB200 NVL72 rack (~115 kW removed by liquid, ~17 kW by air); ~3× over the air wall | ~120–132 kW | 2025 | — | 5.1 | 115/17 split: HPE QuickSpecs (OEM); 120 kW cooling: NVIDIA; ~132 kW all-in: Vertiv/451 | |
| GB200 NVL72 coolant acceptance envelope (ASHRAE W45-class; ~25 °C was NVIDIA's launch operating example, not a floor) | up to ~45 °C supply / ~65 °C return; ~170–235 L/min | — | 2025 | — | 5.1 | NVIDIA GB200 NVL72 launch / Vertiv–451 Research reference architecture |
| per GB300 NVL72 rack (up to ~155 kW peak); CPUs/GPUs/NVSwitch liquid, optics/storage air | ~132–142 kW nominal; ~155 kW peak | 2026-03 | — | 5.1 | Supermicro / Lenovo GB300 NVL72 datasheets | |
| per Rubin Ultra Kyber rack (NVL144) on 800 VDC (roadmap, 2H2027) | ~600 kW | — | H2 2027 (announced) | — | 5.1 | NVIDIA GTC (Jensen Huang); DCD, Tom's Hardware |
| Projected standard Rubin per-GPU maximum power, compared with an approximately 0.3 kW A100 baseline—a roughly sevenfold climb | ~2.3 kW | 2026-01 | — | 5.1 | KeyBanc and SemiAnalysis reporting summarized by Tom’s Hardware | |
| cost to retrofit an air-cooled hall across the cliff to AI liquid cooling; still strands capacity | ~$5–6M/MW → greenfield parity | 2026 | — | 5.1 | Enabled Energy; Uptime Institute via Data Center Knowledge | |
| cooling-only liquid retrofit, power-suitable hall — the ~80%-cheaper scope the full-conversion figure is often confused with | ~$2M/MW | — | 2026-06 | — | 5.1 | STL Partners |
| practical air-cooling ceiling per rack (~41 kW); RDHx bridges ~30–50 kW passive / ~50–100 kW active; DLC supports substantially higher rack densities | ~41 kW | 2025-02-13 | — | 5.2 | SemiAnalysis, Datacenter Anatomy Part 2 – Cooling Systems | |
| ASHRAE recommended inlet band; allowable A1 15–32, A2 10–35, A3 5–40, A4 5–45 °C | 18–27 °C | — | 2024 | — | 5.2 | ASHRAE TC 9.9 Thermal Guidelines (5th ed.) |
| active in-row cooler capacity per rack (contained); fan-wall close-coupled similar | ~30–50 kW | — | 2025 | — | 5.2 | Trane / Vertiv product data; Uptime Institute |
| GB200 NVL72 rack draw — ~90 kW past the air ceiling; ~115 kW liquid + ~17 kW air | ~132 kW | 2025 | — | 5.2 | 115/17 split: HPE QuickSpecs (OEM); ~132 kW all-in: Vertiv/451 | |
| legacy air-cooled PUE band; good containment + warm supply pushes toward low-1.2s | 1.4–1.6 | — | 2025 | — | 5.2 | SemiAnalysis / Uptime Institute |
| common 2026 dense-hall split: liquid for GPU racks, air for networking/storage/CPU residual | ~70 / 30 | — | 2025 | — | 5.2 | Tom's Hardware cooling state of play 2025; SemiAnalysis |
| wet weight of a loaded NVL72-class rack — exceeds common raised-floor point-load ratings | ~3,000 lb | 2025 | — | 5.2 | NVIDIA OCP | |
| of enterprise data centers are more than seven years old — air-era stock that predates AI-class power density and cooling | >60% | 2025 | — | 5.2 | Data Center Dynamics (Enabled Energy op-ed) | |
| practical air-cooling ceiling per rack (~41 kW); RDHx bridges ~30–50 kW passive / ~50–100 kW active; DLC supports substantially higher rack densities | ~41 kW | 2025-02-13 | — | 5.3 | SemiAnalysis, Datacenter Anatomy Part 2 – Cooling Systems | |
| passive RDHx capacity per rack (server fans only, zero added fan power) | ~10–30 kW typical; to ~50 kW on current product | — | 2026-04 | — | 5.3 | OCP Door HX guidelines; Vertiv RDHx educational |
| active RDHx capacity per rack — newest high-capacity doors reach ~100 kW; Motivair ChilledDoor rated to ~75 kW at 100% heat capture | ~50–100 kW | — | 2026-04 | — | 5.3 | Motivair |
| Motivair ChilledDoor AALC deployment — active RDHx used with direct-liquid-cooled servers and a CDU, rated for 0–75 kW per rack | 0–75 kW/rack rated capacity | 2023 | — | 5.3 | Motivair by Schneider Electric | |
| of server exhaust heat captured by a correctly sized rack-mounted door coil (room-neutral); ~40–55% lower capex than full DLC for the bridge band | up to ~100% | 2026 | — | 5.3 | Motivair (Schneider Electric) ChilledDoor; Vertiv RDHx educational | |
| single-phase DLC share of the liquid-cooling market in 2026; RDHx/AALC serve as the brownfield bridge to ~40–50 kW | ~55% | 2026 | — | 5.3 | IDTechEx via Schneider Electric / DCD | |
| design target for CDU-/warm-water-fed RDHx — coil supply held above white-space dew point so nothing condenses | 100% sensible | — | 2025 | — | 5.3 | Vertiv/Eaton CDU guidance; ASHRAE TC 9.9 |
| coolant-to-air approach temperature for liquid-to-air CDU coils (nominal; Vertiv CDU070 15 °C, Delta 10 °C) — the budget that caps warm-coil capacity | ~10–15 °C | — | 2025–2026 | — | 5.3 | Vertiv CoolChip CDU070 / Delta L2A CDU planning guides |
| single-phase direct-to-chip share of the liquid-cooling market in 2026 (the 2026 default) | ~55% | 2026 | — | 5.4 | IDTechEx via Schneider Electric / DCD | |
| OCP flow rule for ≤10 °C coolant rise at ~1 kW/GPU TDP (range ~1.2–2.0 L/min/kW) | ~1.5 L/min/kW | 2025 | — | 5.4 | OCP NVL72 guidance / Dober PG25; OEM/Vertiv CDU sizing | |
| GB200 NVL72 coolant acceptance envelope — supply / return (ASHRAE W45-class); ~25 °C was NVIDIA's operating example, not a limit | up to ~45 °C supply / ~65 °C return (W45-class) | 2026 | — | 5.4 | NVIDIA GB200 NVL72 launch / Vertiv–451 Research reference architecture; ASHRAE W45-class | |
| rack-level manifold flow for NVL72 (~1.5 L/min/kW over ~115 kW liquid load); CDU sized ~250–300 L/min at design pressure | ~170–235 L/min | — | 2025 | — | 5.4 | Guide derivation (Q=ṁ·cp·ΔT); ASHRAE W45-class envelope; vendor NVL72 reference designs |
| per-module cold-plate pressure drop, depending on plate design and flow — no vendor-published NVL72 figure | ~20–55 kPa | — | 2025 | — | 5.4 | CoolIT / OCP liquid-cooling guidelines |
| NVL72 heat split — removed by liquid vs left on air per rack (~132 kW total) | ~115 / ~17 kW | 2025 | — | 5.4 | HPE QuickSpecs (OEM 115/17 split); 132 kW all-in Vertiv/NVIDIA + 451 Research | |
| direct-to-chip system capex vs ~$1,000+/kW for immersion | $300–500/kW | — | 2026 | — | 5.4 | derived: ~$50k cooling BOM per ~130 kW NVL72-class rack (TrendForce via Tom's Hardware) |
| in-silicon microfluidic cooling vs cold plates (≤65% lower peak temp rise) — the forward pointer | up to 3x | — | 2025 | — | 5.4 | Microsoft Research / Tom's Hardware |
| cooling-system PUE band: two-phase immersion ~1.01-1.05 (best-in-class), single-phase ~1.03-1.10 | ~1.01-1.10 | — | 2025 | — | 5.5 | Green Revolution Cooling |
| immersion system capex vs ~$300-500/kW for direct-to-chip; fluid alone ~8-15% of system capex | $1,000+/kW | 2026 | — | 5.5 | DCD / IDTechEx | |
| dielectric fluid cost; a single tank charge runs tens of thousands of dollars before a server goes in | $12-50/L | — | 2026 | — | 5.5 | IDTechEx / fluid-market pricing |
| direct-to-chip (DLC) share of the liquid-cooling market; immersion remains a niche minority | ~55% | 2026 | — | 5.5 | IDTechEx via Schneider Electric / DCD | |
| last day to order 3M Novec; PFAS production ends 2025, vaporizing the two-phase fluid supply chain | 31 Mar 2025 | — | 2025 | — | 5.5 | 3M; DCD |
| 3M PFAS-related settlement exposure — the liability backdrop behind the two-phase exit | $12.5B | — | 2024-2025 | — | 5.5 | DCD; The Cooling Report; 3M filings |
| immersion hardware mean-time-to-repair vs air/cold-plate — no hot-swap, full lift-out, fluid handling | ~3x | — | 2026 | — | 5.5 | Energy Solutions / practitioner data |
| flooded-tank point load; can exceed ~800 kg/m² slab ratings, forcing structural reinforcement | up to ~3 t | — | 2025 | — | 5.5 | ASHRAE TC 9.9 / vendor data |
Refine your search or pick a Part to narrow the 1,427 matches.