B Capital and Prelude Ventures led a $102m Series D round in Lunar Energy.

B Capital and Prelude Ventures, venture capital firms, led a $102m Series D round in Lunar Energy, a provider of integrated home battery systems and virtual power plant software, with participation from DCVC, Piva Capital, Leitmotif, Sunrun, Itochu Corporation, Q Capital Partners, and Activate Capital. “The residential battery storage industry is at an inflection point, and Lunar’s integrated hardware-software offering is setting a new standard. Lunar’s fully integrated approach – combining modular BESS hardware, advanced AI-driven optimization and a proven ability to deliver value to both homeowners and the grid – sets the company apart. By not just storing energy but intelligently learning each home’s unique consumption patterns, Lunar maximizes solar production, ensures reliability and drives energy affordability. We’re excited to support Kunal and the team as they continue building the resilience infrastructure the modern grid now requires, while accelerating the adoption of VPPs at scale,” Jeff Johnson, B Capital General Partner.