TL;DR: best utilities for data center development in 2026
The best utility is the one that can document a credible large-load path for the exact site. Start with service territory and process, then verify transmission capacity, substation scope, rate exposure, upgrade cost, schedule, and customer protections.
| Utility | Best for | Quick list hint |
|---|---|---|
| Dominion Energy | Best for Virginia and Mid-Atlantic data center utility diligence | Verify large-load process, transmission upgrade assumptions, and energization timing. |
| Oncor | Best for ERCOT territory site screening in Texas | Confirm interconnection path, delivery point, tariff exposure, and required customer facilities. |
| Georgia Power | Best for Georgia data center site and economic-development coordination | Request written service availability, rate assumptions, and infrastructure scope. |
| Entergy | Best for Gulf South industrial and data center load evaluation | Check generation, transmission, economic-development support, and contract structure. |
| Tennessee Valley Authority | Best for TVA-region site selection support | Verify local power company role, site readiness, incentives, and large-load process. |
| American Electric Power | Best for multi-state utility diligence in AEP territories | Confirm state operating company, transmission constraints, and rate design. |
| NIPSCO | Best for Indiana large-load and industrial power diligence | Review customer protections, generation capacity model, and upgrade responsibility. |
| Duke Energy | Best for Carolinas and Southeast load-growth diligence | Verify generation and transmission plan, tariff exposure, and energization schedule. |
Fit depends on the exact service territory, site location, load size, delivery date, utility queue, tariff, upgrade cost, regulatory approval, and whether the buyer needs utility service, behind-the-meter power, or both.
How should buyers compare utilities?
Compare utilities by the documents they can provide: service process, load-study status, substation and transmission scope, feeder or delivery point, tariff or special contract path, upgrade ownership, deposit requirements, power procurement assumptions, and milestone schedule. A market reputation for data centers is not enough without site-specific utility evidence.
What questions expose weak power claims?
Ask whether the site has a formal load request, what study has been completed, which facilities must be built, who pays for upgrades, what regulatory approvals are needed, what power supply assumptions support the load, how curtailment or delay risk is handled, and what remedies exist if energization slips.
When should buyers add microgrid or backup-power options?
On-site power can help bridge schedule risk or improve resilience, but it does not remove utility diligence. Buyers still need to understand interconnection, emissions permitting, fuel supply, redundancy, protection systems, operating responsibility, and the contract boundary between utility service and private generation.
How should utility fit affect site selection?
Put utility evidence ahead of land price and incentives when the workload is power constrained. A site with cheaper land or stronger tax treatment can lose if the utility schedule is uncertain, upgrade cost is open-ended, or the tariff design does not fit high-utilization AI load.