ERCOT Approved Rules for 450 Gigawatts of Data Center Power. Texas Commercial Rate Data Shows the Market Is Already Pricing It.
ERCOT just rewrote its grid rules for a wave of data center demand five times larger than the grid's all-time peak. The commercial rate data across 698 active Texas plans is already reflecting the pressure.
ERCOT Handles 450 GW Data Center Requests
On June 3, the board for ERCOT approved new interconnection policies for the grid to address an unmatched volume of large load requests. Data center and industrial clients have requested approximately 450 gigawatts of capacity, which exceeds five times the grid's maximum demand. Previous policies meant that requests of this magnitude were unmanageable in ERCOT's interconnection queue.
New policies mean that ERCOT is now able to give priority to projects with firm commitments while managing speculative load requests. The grid operator also issued its summer forecast, projecting demand to be high due to increasing temperatures and low rainfall - conditions historically linked to peak demand and increasing wholesale prices during July and August.
$2.65 Billion Generation Capacity Expansion
The Public Utility Commission of Texas is pursuing parallel goals. PUC has committed $2.65 billion from the Texas Energy Fund to finance new, reliable generation capacity of 3,564 megawatts. However, not all of these plants will be operational by this summer.
A combination of these factors leads to real near-term grid stress: rapidly increasing load demand, limited new generation resources in the immediate window, and a predicted hot summer that sets up potential wholesale price volatility while longer-term capacity investments take time to materialize.
Analysis of Current Market Rate Data
The market average rate across 698 active commercial plans tracked as of mid-June 2026 is $0.109 per kilowatt-hour.
The more revealing data point is the divergence in pricing between contract length categories:
- Short-term contracts (under 12 months): median rate of $0.119/kWh
- Mid-term contracts (12-24 months): median rate of $0.088/kWh
- Long-term contracts (24-plus months): median rate of $0.080/kWh
Short-term contracts run 49% higher than long-term contracts at the median. For a business consuming 50,000 kWh per month, that difference amounts to approximately $1,950 per month.
This pricing gap reflects how forward markets estimate risk. When grid operators signal stress through large load additions, constrained capacity windows, and summer heat outlooks, suppliers price short-term exposure higher while rewarding buyers willing to commit to longer terms.
Per-Utility Rates as of June 2026
Rates vary meaningfully by delivery utility. Oncor (DFW and North Texas) and CenterPoint (Houston area) both sit at a median of $0.094/kWh. AEP Central (Corpus Christi, San Antonio region) comes in at $0.099/kWh. TNMP territory businesses see a median of $0.109/kWh. AEP North (Abilene and Wichita Falls) shows the highest median at $0.125/kWh.
The AEP North premium reflects both market liquidity factors and the reality of less-populated service territories where fewer suppliers compete actively for commercial accounts.
The Decision Facing Texas Commercial Buyers This Summer
With new grid rules designed for a multi-year data center buildout, two dynamics are running at once.
In the near term, summer heat stress combined with an increasing load base and the existing generation fleet may produce wholesale price volatility before new capacity comes online.
Longer term, new generation from Texas Energy Fund investments is anticipated to reach the grid in the 2026-2028 window, which may ease pressure as supply expands to meet the growing load.
Businesses renewing or signing contracts this summer are weighing both dynamics. The current rate spread between contract terms reflects market expectations: short-term buyers pay for optionality while long-term buyers trade flexibility for a lower locked-in rate.
Neither approach is universally correct. A business with uncertain space needs or limited capital may opt to pay the short-term premium to maintain flexibility. A business with stable, predictable demand and a long facility horizon has a stronger case for locking in a longer-term rate now.
Rate data for all active Texas commercial plans, broken down by utility territory and contract term, is available in the plan comparison tools on this site.