Mainspring Signs 1.6 GW Generator Agreement With AEP

Oct 13, 2026
American Electric Power will buy up to 1.6 GW of Mainspring Linear Generators through 2034, starting with a 190 MW first tranche for delivery from 2027.

Mainspring Energy has signed a sales agreement to provide American Electric Power (AEP) with up to 1.6 GW of Mainspring Linear Generators through 2034, the company said in a press release. AEP purchased a first tranche of 190 MW for delivery beginning in 2027.

Mainspring calls it the largest procurement of linear generators to date. The company says the fuel flexible, low emissions generators give utilities a rapidly deployable asset that supports increased power demands from AI data centers, manufacturing and electrification. "Mainspring's linear generators can provide additional capacity quickly and efficiently," said AEP chief executive Bill Fehrman.

Mainspring began commercial shipments in 2020. The agreement extends its business beyond commercial, industrial and data center customers into the investor owned utility sector.

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