Power-constrained data center site financing requires a load-interconnection or electric-service agreement and a clear path to commercial operation date (COD). A data center is a large-load request to the utility. It is not filed into an ISO generator cluster window. An LGIA or ISA is a generator agreement and applies to behind-the-meter generation, not to the utility load. Lenders haircut sites without firm power. Behind-the-meter gas or battery generation can bridge while utility power is secured.
Why power is the binding constraint and what evidence lenders demand
Per EIA and EPRI data center load forecasts, U.S. data center electricity demand is growing materially through 2026 to 2030 driven by AI training and inference workloads. The bottleneck is utility transmission and generation capacity: interconnection queues at major utilities now exceed multi-year wait times in key data center markets (Northern Virginia, Ohio, and parts of Texas).
Per FERC Order 2023, generator-interconnection procedures have been reformed to a cluster-study model with firm-progress milestones. That reform applies to generation, not to a data center load. A data center is a large-load request to the utility. It is not filed into an ISO generator cluster window. The power document is a load-interconnection or electric-service agreement. An LGIA or ISA applies to behind-the-meter generation, not to the utility load.
Lender evidence requirements for a power-constrained site: (1) an executed load-interconnection or electric-service agreement with the utility, (2) the utility's stated capacity and energization date, (3) any utility commitment letter quantifying timing and capacity, (4) the substation and transmission build-out timeline. An LGIA or ISA is a generator agreement and applies to behind-the-meter generation, not to the utility load. Without a load-interconnection or electric-service agreement, the site is not financeable as a data center.
BTM (behind-the-meter) options: gas turbine generation, battery energy storage (BESS), or co-located renewable generation can bridge the period between site acquisition and utility power availability. BTM gas requires air-quality permits and gas-supply agreements; BTM solar + BESS requires NREL-baseline capex and operating cost modeling. Lender appetite for BTM-bridged data centers has grown since 2024 as utility queues have lengthened.
Per GAO data-center reporting, power and water are the two binding constraints on data-center growth in 2026. Sites with documented power and a defined interconnection-completion date are financeable; sites that depend on speculative future utility upgrades are typically equity-only until the utility commitment lands.
Sources
- Annual Energy Outlook: Reference Case Power, Industrial & Manufacturing Trajectories · U.S. Energy Information Administration (EIA) · current
- Powering Intelligence: Analyzing Artificial Intelligence and Data Center Use of Electricity · Electric Power Research Institute (EPRI) · current
- Order No. 2023: Improvements to Generator Interconnection Procedures and Agreements · Federal Energy Regulatory Commission (FERC) · current
- Data Center Energy Use: GAO Reports on Power Demand & Federal Programs · U.S. Government Accountability Office (GAO) · current