American Electric Power has agreed to buy up to 1.6 gigawatts of Mainspring linear generators over eight years under a contract with a stated ceiling of up to $4 billion.
AEP also plans a 702-megawatt Cheyenne fuel cell project using Bloom Energy fuel cells and backed by a 20-year Google power purchase agreement.
The two initiatives carry separate $4 billion figures: the Mainspring agreement is a purchase ceiling, while the Cheyenne project is a planned $4 billion cost.
Reported by The Wrap desk from Private Infrastructure Daily data pack. Published . Updated Oct 28, 2026 · 2:57 p.m. ET. Corrections