German EnEfG §11 sets cohort-specific minimum energy reuse for new data centers
10% / 15% / 20% by applicable start-date cohortobserved
| Value kind | observed — Reported measurements, counts, and specifications keep the precision and scope stated by their source; an exact specification is not treated as a range. |
|---|---|
| Scope | Start-operation cohorts: from July 1, 2026 at least 10%; from July 1, 2027 planned at least 15%; from July 1, 2028 planned at least 20%. Reach the required annual average within two years; §11(3) exceptions require their stated evidence. Reuse share does not establish heat temperature or a sale. |
| As of | 2023-11-13 |
| Source | German Federal Ministry of Justice / Federal Office of Justice — EnEfG of November 13, 2023, BGBl. I No. 309; EnEfG §11(2), German Energy Efficiency Act — controlling cohort percentages and dates; German Energy Efficiency Act — statutory reuse obligation; Columbia Climate Law Blog — Kristin Weiß, From EU Framework to National Action: How Germany Regulates Data Center Energy Use, October 24, 2025, commentary on heat reuse and district-heating integration only. Cohort percentages and dates follow the official §11(2) text. · §11(2) no.2: July 2026, July 2027 and July 2028 cohorts; §11(3) exceptions |
| Review | checking…review by 2026-12-05 · standard cadence |
| Recorded changes | last 2026-09-16 · 4 revisions tracked |
| Claim id | german-enefg-energy-reuse-factor-minimum-for |
Where the guide uses it
- 3.9 Permitting, Regulatory, Environmental & the Critical Path
- 5.7 Facility Water Loops & Warm-Water Cooling
- 5.9 Heat Reuse & Waste-Heat Recovery (Engineering)
- 15.1 Efficiency Metrics: PUE, WUE, ERF, REF & the Post-PUE Metric Stack
- 15.5 Heat Reuse & District Heating (Sustainability & Economics)
- 15.7 Regulation, Reporting & Disclosure Frameworks
← Full numbers register — every date-stamped figure in the guide, with revision history.