American Electric Power, Chevron and Equinor all participated in a round that increased the Stanford company’s total funding to $228m.
Mainspring Energy, a US-based on-site power generation technology developer based on research at Stanford University, received $95m on Tuesday in a series D round featuring energy utility American Electric Power (AEP) and oil and gas producers Chevron and Equinor.
The round was led by Devonshire Investors, a private equity firm affiliated with financial services and investment group Fidelity, and included Princeville Capital, 40 North Ventures, Khosla Ventures, ClearSky, KCK Group and private investor Bill Gates.
Chevron was represented…