Tennessee plans massive natural gas expansion to support growing AI data center power demand in the region.
The Tennessee Valley Authority released its preliminary 2026 integrated resource plan on Monday, revealing that electricity load growth in its region already exceeds previous forecasts and has driven capacity needs of 7 to 26 GW of natural gas between now and 2040. The surge stems primarily from data center expansion, including artificial intelligence and hyperscaler facilities, which have pushed actual and forecasted demand toward the utility's higher growth economy scenario.
To meet this demand, TVA plans to add up to 5 GW of nuclear capacity, 1–5 GW of storage, 2–5 GW of renewables (1–8 GW nameplate), and 2–3 GW of energy efficiency and demand response additions. TVA emphasized that new capacity is essential across all scenarios to support load growth and replace retiring and end-of-life generation. Natural gas expansion will provide "firm, dispatchable capacity," while new nuclear technologies support growth and reduce fuel volatility and regulatory risks. Solar will play a complementary role, and battery and pumped-storage expansion will continue, with energy efficiency and demand response programs scaling alongside smart-technology deployment.
The IRP presented three strategies. Strategy A relies heavily on natural gas, carrying higher financial risk than alternatives. Strategy B, which emphasizes technological innovation and nuclear expansion, is the most expensive overall. Strategy C focuses on distributed energy and renewables but increases the risk of unserved energy or curtailment. The utility recommends pursuing solar to reduce costs, suspending wind additions due to cost and portfolio challenges, and investing in hydro and nuclear fleets while pursuing nuclear license extensions.
The region has experienced extreme winter temperatures in recent years, setting a new winter peak record of 35,319 MW in January 2025. TVA is using a 26% planning reserve margin target for winter, compared to 18% for summer. The IRP reflects recent policy changes, including the One Big Beautiful Bill Act's curtailment of renewable investment tax credits and the Trump administration's emphasis on coal and gas generation. TVA's coal forecast now includes continuing operation of its coal fleet as a cost-effective option to reduce system cost and reliability risk, with the utility to evaluate its existing fleet through 2040 based on material condition, reliability, cost, and regulatory requirements.
TVA will accept public comments on the preliminary IRP until July 22 and hold a public webinar on July 2. Final recommendations will be presented at the TVA Board meeting in August.