US data-center electricity use in 2030: LBNL reference case and compounded-uncertainty range (share of total US electricity)
649 TWh (11.8%); range 521–843 TWh (9.5–15.3%)forecast
| Value kind | forecast — Forecasts are time-bound outlooks, not specifications; test decisions across plausible scenarios. |
|---|---|
| Scope | All US data centers, total electricity, excluding cryptocurrency mining. Shares are of NERC's 2025 Long-Term Reliability Assessment forecast of 2030 US electricity. The latest historical year is 2024 (192 TWh, 4.7%); the update revises earlier years slightly below the December 2024 report. |
| Caveat | The 521–843 TWh range pushes every sensitivity to the same extreme at once, which LBNL calls unlikely. The reference case follows current trends and does not model grid, supply-chain or regulatory limits. |
| As of | 2026-06 (shipment data through November 2025) |
| Source | LBNL, United States Data Center Energy Usage Report: 2025 Update (June 2026, LBNL-2001758, DOI 10.71468/P1RP4F) · Executive Summary (p. 5): 11.8% of US electricity by 2030, range 9.5–15.3%, Reference Case 649 TWh, bounds 521–843 TWh; Total Energy Use (p. 8): 2024 estimate 192 TWh, 4.7%; 2028 Reference Case 464 TWh; Table 2 (p. 9) |
| Review | checking…review by 2027-06-30 · standard cadence |
| Recorded changes | last 2026-10-19 |
| Claim id | lbnl-us-data-center-electricity-2030 |
Where the guide uses it
← Full numbers register — every date-stamped figure in the guide, with revision history.