*Key takeaways
- Edgecore says data‑center operators should fund the power infrastructure they need, but the exact definition of “full cost” is not provided.
- TVA’s new wholesale rate class, effective Oct 1 2026, adds a $1.5 million per MW capacity‑commitment charge and lifts data‑center electricity charges by roughly 10 % over three fiscal years.
- In the PJM Interconnection region, wholesale electricity prices rose 50.3 % in H1 2026, with capacity costs increasing 207.1 % and a $11.11 /MWh component attributed to projected data‑center demand (9.7 % of the total increase).
- The three regimes illustrate distinct cost structures: a capital‑intensive “own‑power” model, a fixed‑charge capacity fee, and a market‑driven variable price.
- Investors and engineers should model both fixed and variable exposures when sizing AI‑compute facilities.
Edgecore’s “Own Power” Position
Edgecore has publicly stated that it expects data‑center operators to cover the cost of the power delivery assets required for a campus. The company says it will fund the necessary infrastructure, but it does not spell out what “full cost” includes.
"The developer-operator says it will fund the power infrastructure its campuses need, but the definition of “full cost” remains unclear."
— Data Center Knowledge
The announcement signals a shift from relying on a generic utility service class toward a model where the tenant bears the capital expense of power‑related assets.
TVA’s New Data‑Center Rate Class
The Tennessee Valley Authority (TVA) approved a dedicated wholesale rate class for data‑center loads above 5 MW. The tariff becomes effective on October 1 2026 and introduces two key cost elements.
| Item | Detail |
|---|---|
| Capacity Commitment Charge | About $1.5 million per megawatt, amortized over three to five years |
| Rate impact | An average billing increase of roughly 10 % for affected customers, phased in over three fiscal years |
The capacity charge is described as a way to recover the incremental generation and transmission upgrades needed for large data‑center loads.
"new rate will see data centers removed from the utility's manufacturing service rate customer class, which will lead to approximately 10 percent higher charges for the power they use."
— Data Center Dynamics
"New data center developments will face upfront capacity commitment charges of about $1.5 million per megawatt, paid over three to five years."
— Data Center Dynamics
TVA’s leadership framed the change as a protective measure for residential consumers.
"That’s really to reflect the incremental capacity that needs to be added to the grid that’s not covered in the base rate," TVA CEO Tom Rice said.
— Data Center Dynamics
The board also approved a wholesale rate class built specifically for data centers.
"The Tennessee Valley Authority’s Board of Directors on August 20, 2026 approved a new wholesale rate class built specifically for data centers." — Unite.AI
Effective October 1 2026, loads above 5 MW fall under a Capacity Commitment Charge attached to TVA’s data‑center schedules.
"Effective October 1, 2026, new or expanding data center loads above 5 megawatts fall under a Capacity Commitment Charge..." — Unite.AI
TVA estimates that the all‑in average billing impact for data‑center customers will be about 10 % and will be phased in across three fiscal years.
"TVA expects the all-in average billing impact for data center customers to run approximately 10%, phased in over three consecutive fiscal years." — Unite.AI
PJM Wholesale Price Surge (H1 2026)
The PJM Interconnection, which covers 13 states and the District of Columbia, reported a sharp rise in wholesale electricity costs during the first half of 2026.
| Metric | H1 2025 | H1 2026 | % Change |
|---|---|---|---|
| Wholesale electricity price | $76.16/MWh | $114.50/MWh | +50.3 % |
| Capacity cost | $6.39/MWh | $19.61/MWh | +207.1 % |
| Energy cost | $48.96/MWh | $72.68/MWh | +47.7 % |
| Transmission cost | $18.84/MWh* | $19.88/MWh | +5.6 % |
*The source provides the 2026 transmission cost; the 2025 figure is not listed but the percent change is given.
"Wholesale electricity costs ... surged 50.3% during the first half of 2026 ... total cost of wholesale power ... increased to $114.50 per megawatt-hour from $76.16 a year earlier." — MyChesCo
"Capacity costs climbed 207.1%, reaching $19.61 per megawatt-hour from $6.39 during the first six months of 2025." — MyChesCo
"Energy costs increased 47.7% to $72.68 per megawatt-hour." — MyChesCo
The independent market monitor quantified the impact of projected data‑center demand on the overall price.
"The market monitor calculated that including projected data center demand in PJM’s capacity market increased overall wholesale power costs by $11.11 per megawatt-hour during the first half of 2026, accounting for 9.7% of the total." — MyChesCo
The monitor also noted that the capacity auctions for the 2025‑2028 delivery years were not competitive, largely because of the forecast data‑center demand.
"Our analysis concludes that the results of the capacity market auctions for the 2025/2026, 2026/2027, and 2027/2028 Delivery Years were not competitive, primarily as a result of the inclusion of forecast demand for data centers," said Joseph Bowring. — MyChesCo
Cross‑Market Comparison
| Feature | Edgecore (own‑power) | TVA (capacity charge) | PJM (market price) |
|---|---|---|---|
| Cost structure | Capital expense funded by operator; “full cost” not defined | Fixed $1.5 M / MW upfront, amortized; ~10 % rate increase phased over 3 yr | Variable market price; wholesale price +50 %, capacity cost +207 % |
| Trigger | Operator decision to fund power assets | Loads >5 MW, effective Oct 1 2026 | Forecast data‑center demand included in capacity market |
| Geographic scope | Any jurisdiction where Edgecore builds | TVA service area (TN, AL, MS, VA, KY, etc.) | PJM region (13 states + DC) |
| Billing impact | Not quantified publicly | ~10 % higher electricity bill for data‑center customers | $11.11 /MWh (9.7 % of the total $114.50 /MWh wholesale price) tied to data‑center demand |
Implications for Investors and Engineers
- Capital planning – Projects in TVA’s footprint should budget for the $1.5 M / MW capacity‑commitment charge in addition to the variable energy bill.
- Operating expense volatility – In PJM‑served locations, wholesale prices can swing dramatically; the 50.3 % jump added $38.34 /MWh to the baseline wholesale price.
- Risk allocation – Edgecore’s model places the power‑infrastructure risk on the tenant, which may affect financing terms.
- Regulatory timing – Both TVA and PJM changes are phased, giving developers a window to lock in contracts before full impacts hit.
- Site selection – Facilities that can locate outside high‑price zones (e.g., outside PJM) or that can co‑invest in on‑site generation may achieve more predictable cost profiles.
Conclusion
The AI compute surge is prompting three distinct approaches to power cost allocation. Edgecore pushes the capital burden onto data‑center operators, TVA imposes a large upfront capacity fee while smoothing a modest rate increase over several years, and PJM’s market dynamics show how projected data‑center demand can lift wholesale prices across a broad region. Understanding each regime’s mechanics helps investors and engineers build more accurate financial models for future AI‑scale data‑center projects.
Sources
This article was researched and fact-checked against the following sources:
- EdgeCore Says Data Centers Should Pay Their Own Power Costs (datacenterknowledge.com)
- US utility TVA imposes new rates on data center firms - DCD (datacenterdynamics.com)
- TVA Board Creates Data Center Rate to Shield Households From AI Power Costs – Unite.AI (unite.ai)
- PJM Power Costs Jump 50% as Data Centers Drive Capacity Surge - MyChesCo (mychesco.com)
- Map Shows Electricity Costs in Every State as AI Data Centers Surge Prices - Newsweek (newsweek.com)
