Investment firm NGP Energy Capital Management led a $25m Series B round in Voltus, a distributed energy resources company, with participation from Prelude Ventures and Ajax Strategies. "A 15-year plus leader in energy technology investing, NGP ETP III is focused on committing capital to compelling companies focused on energy transition and is very pleased to be partnering with Voltus and to lead the Series B financing. Voltus has a leading DER technology platform, an extensive customer network in key target markets, a world-class team, and a proven track record," Philip Deutch, NGP ETP III CEO.