First PublishedApril 21, 2026
MethodologyOpen · Auditable · Versioned (v1.0)
arXiv PreprintPending submission
Technical ReviewIndependent reviewer (pending credit)
COU DefinitionsPublicly declared · Workload-portable
Standard ClassEnergy-agnostic compute efficiency unit
Index Summary · v1.0
Most Efficient
B200
Grade S · Blackwell 2025
Best $/M Tokens (Grid)
L40S
$0.17/M tokens · Grade B
Worst Efficiency
V100
7.4× worse CEH than H100
Grid vs BTM Delta
59%
cost reduction BTM vs grid avg
▸ Full CEH™ Benchmark Table · LLM Inference (10 Configurations)
| # | Hardware | TDP/Unit (W) | Tokens/sec (×8) | kWh/hr | CEH Rate | Grid $/M tokens | BTM $/M tokens | CO₂/M tokens (g) | Grade | Efficiency |
|---|
Sorted by CEH™ Rate ascending (lower = better). Grid $0.085/kWh · BTM $0.035/kWh · PUE 1.2 · 0.386 kg CO₂/kWh.
CEH™ Rate Comparison lower = better
Grid vs BTM Cost $/M tokens
▸ DGE&I Behind-the-Meter Advantage
At a representative BTM generation rate of $0.035/kWh (source-agnostic benchmark range) vs. $0.085/kWh
grid average, DGE&I's dispatchable behind-the-meter architecture creates a structural CEH™ cost advantage
that compounds at scale — a 59% reduction in the energy cost component of every compute hour.
BTM energy rates vary by generation type, geography, and contract structure. The value shown is a benchmark range achievable across multiple dispatchable and renewable configurations.
BTM Energy Rate
$0.035
per kWh · any source · benchmark range
CEH™ Cost Reduction
59%
vs US grid avg $0.085/kWh
H100 Node Savings/Yr
$26,800
grid vs BTM · full utilization
Carbon Offset (H100 8×)
~148 t
CO₂/yr avoided vs grid avg
CEH™ Arbitrage Window
Now
No competitor has named this unit
REC Monetization
Additive
Green compute premium on top
Benchmark Transparency
CEH™ Index v1.0 throughput figures are sourced from published third-party benchmark studies
(MLPerf v5.1, CUDO Compute, Koyeb, Spheron, 2025–26). Independent replication is invited.
DGE&I does not operate all benchmarked hardware configurations directly.
¹ Tokens/sec based on Llama-class LLM inference, batch size 8, vLLM optimization. Sources: MLPerf v5.1, CUDO Compute, Koyeb, Spheron (2025–26).
² PUE 1.2 applied uniformly. BTM rate = $0.035/kWh (source-agnostic benchmark range; actual rates vary by type, geography, and contract structure). Grid = $0.085/kWh US average.
³ CEH™ (Compute Energy Hour) is a trademark of Oak Ridge Management. First introduced April 2026. Energy-agnostic. All rights reserved.
⁴ This index does not constitute investment advice. Hardware specs subject to change; verify with vendor datasheets.
² PUE 1.2 applied uniformly. BTM rate = $0.035/kWh (source-agnostic benchmark range; actual rates vary by type, geography, and contract structure). Grid = $0.085/kWh US average.
³ CEH™ (Compute Energy Hour) is a trademark of Oak Ridge Management. First introduced April 2026. Energy-agnostic. All rights reserved.
⁴ This index does not constitute investment advice. Hardware specs subject to change; verify with vendor datasheets.
Formal Citation
Cobb, D. (2026). CEH™: A Proposed Standard Unit of Measurement for Compute Energy Intensity.
DGE&I / Oak Ridge Management. First published April 21, 2026. arXiv: [pending submission].