KCK Group, American Electric Power, Centrica and Statoil all invested as the linear generator provider took its total funding to $133m.

GE Ventures has participated in a series D round closed by African solar energy provider Off Grid Electric as it moves into Ghana.

Activate Capital led the round's first close, Stem's previous investors including General Electric, Total, Iberdrola, Exelon, Mitsui and RWE.

Canada Pension Plan Investment Board has bought secondary shares in the renewable energy developer, which is backed by corporate JV Jera.

Suntory has now invested a total of $25m in the chemical and fuel production technology developer, and could add $6m more.

Andrei Zuzin, formerly managing director at Vnesheconombank's VEB Innovation fund, is heading aluminium producer Rusal's venture investment division.

Eon and Innogy will likely be joined by Constellation Technology Ventures for a round that took the energy use analysis platform's total funding to $51m.

The solar energy technology developer, which counts a range of corporates as past investors, has raised cash from Presidio Partners, Kline Hill Partners and Structural Capital.