How long does it take to get grid power for a datacenter?

Why power sets the schedule

Land, permits and construction all take time, but delivering tens or hundreds of megawatts to a new site can take longer still, because the utility may need new substation equipment, transmission upgrades or new generation before it can serve the load reliably. Developers call the time from first request to energization at full capacity speed to power, and it has become the line item that decides which sites are worth pursuing.

Demand is the reason the wait has grown. A Lawrence Berkeley National Laboratory report released by the Department of Energy in December 2024 estimated that datacenters used about 4.4% of US electricity in 2023 (176 TWh) and could use roughly 6.7% to 12% by 2028. In June 2026 ERCOT said it was tracking more than 438,000 MW of large load requests in Texas, nearly 89% of them from datacenters.

The two queues a project can be waiting on

A large site can be held up on the demand side, the supply side, or both.

• The load request. The datacenter asks its serving utility (and, in organized markets, the grid operator) for service. The utility studies whether the local network can carry the load, identifies upgrades, and sets terms such as minimum demand charges, contract length and collateral before it commits to an energization date.
• The generation and transmission behind it. If serving the load needs new power plants, storage or transmission, those go through generator interconnection queues. FERC Order No. 2023, issued July 28, 2023, reformed that process: transmission providers must study requests in clusters (with a 150-day cluster study), customers must show site control and post larger deposits, and providers face penalties for missing study deadlines.

The generator queues are where the best long-run data exists. Berkeley Lab's Queued Up 2026 edition counted about 8,200 projects actively seeking interconnection at the end of 2025 (1,312 GW of generation and about 749 GW of storage). The median time from interconnection request to commercial operation was over five years for projects built in 2025, and only 13% of the capacity that applied between 2000 and 2020 had been built by the end of 2025.

Order No. 2023 applies to generating facilities, not to loads, so it does not by itself set a datacenter's timeline.

What changed for large loads in 2025 and 2026

The rules for connecting large loads are being reworked at both the federal level and in Texas.

• FERC. On October 23, 2025, the Secretary of Energy directed FERC to consider an advance notice of proposed rulemaking on interconnecting large loads, generally loads above 20 MW (Docket RM26-4). In June 2026 FERC issued show cause orders to the six grid operators under its jurisdiction (PJM, MISO, SPP, CAISO, ISO New England and NYISO), giving each 60 days to justify its current tariff or file changes covering study processes, cost allocation, co-location and behind-the-meter generation, service for flexible loads, and studies of generation built to serve nearby loads.
• ERCOT. The Public Utility Commission of Texas approved ERCOT's Batch Zero process on June 18, 2026. It replaces project-by-project studies with one system-wide study of qualified loads of 75 MW and larger. ERCOT said a transmission plan for the whole batch was expected in fall 2027 and that applications for the next batch would open in summer 2027.
• The Texas pause. After a directive from Governor Abbott on August 3, 2026, ERCOT paused the Batch Zero study, delayed final classification of all large loads, and paused approvals to energize new datacenter and crypto-mining loads of 75 MW or more until a verification audit and community impact review are complete. Both reports are due to the PUCT by December 10, 2026. ERCOT's September board update listed 204 projects (66.4 GW) conditionally classed as base load and 158 projects (127.9 GW) as studied load.

Treat any timeline quoted before mid-2026 as provisional until these processes settle.

What makes one site faster than another

Within the same market, the wait can differ a great deal from one site to the next. The factors that most often separate a fast site from a slow one:

• Existing service. A retired power plant, closed mill or large industrial customer may already have high-voltage service and an interconnection position that a new user can reuse. The site finder has a filter for sites with an existing interconnection.
• Distance to a capable substation. A high-voltage substation with spare capacity close to the site generally means less new line and equipment to build. Browse substations or the map.
• Local congestion. A site behind a frequently binding transmission constraint is more likely to need upgrades. The grid congestion screen maps binding constraints in all six organized markets GridCensus tracks.
• The utility's large-load terms. Some utilities have published large-load tariffs with minimum take, contract term and collateral rules; others negotiate case by case. See utility terms.
• Flexibility and on-site supply. ERCOT's new framework adds pathways for loads that self-supply with on-site generation or accept curtailment during local constraints, and FERC's June 2026 orders ask the other grid operators to address the same topics. ERCOT notes that a fully islanded facility generally falls outside its interconnection process, though it may still need to register with the PUCT.
• Local approval. A county or township moratorium can stop a project regardless of grid readiness. Check local moratoria.

How to screen speed to power before you call the utility

Only the serving utility can give you an energization date, and only after it studies a specific request. Public data can tell you which sites are worth that request.

1. Size the search. Start in Find by size with the megawatts you need, and filter for an existing interconnection or proximity to a grid bottleneck.
2. Vet the shortlist. Vet a site shows the serving utility and its posture, binding constraints within 60 miles, generation and storage queue requests within 30 miles, and local moratoria nearby.
3. Compare markets. The speed-to-power ranking averages GridCensus's speed sub-score by state.
4. Take the shortlist to the utility. Ask for its large-load process, study timeline, deposit and contract terms in writing.

The speed-to-power sub-score carries 20% of the GridCensus readiness score. It blends a market-structure factor (45%), measured queue wait from Berkeley Lab data (20%), queue completion rate (15%), the trend in recent waits (10%) and load growth (10%). It is a screening estimate, not a study result, and the market-structure factor does not yet reflect ERCOT's August 2026 energization pause. See the methodology for details.