Integrated home battery system and Virtual Power Plant (VPP) software provider Lunar Energy has raised $102 million in an oversubscribed Series D round led by B Capital and Prelude Ventures.
This most recent round comes after a previously unannounced Series C financing of $130 million led by Activate Capital. The Series C and Series D funding rounds also included DCVC, Piva Capital, Leitmotif, Sunrun, Itochu Corporation, and Q Capital Partners.
The funding will help Lunar expand its offerings, which include hardware and software products. It will also be used to scale Lunar’s AI-driven distributed power software platform, Lunar Gridshare.
“This financing validates the reason we started this company,” said Kunal Girotra, Founder and CEO of Lunar Energy, in a statement. “Five years ago, we believed the energy transition wouldn’t be solved by hardware alone or software alone. We built Lunar Energy to bring the best of hardware and software together, and this financing allows us to scale that model, helping homes electrify and become active participants in a smarter, more resilient grid.”
The company deployed thousands of systems in California during its first year of commercialization and its Lunar Gridshare platform was utilized by California Community Choice Aggregators to develop and deploy new distributed power programs across the state.
Sunrun leverages Lunar Gridshare for its distributed power plants across markets in New England, Hawaii, and Puerto Rico, as well.
The Lunar System is designed in California and assembled in Georgia and Washington, making it eligible for clean energy investment tax credits.
Jeff Johnson, General Partner at B Capital, added, “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.”
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