Lunar Energy, a home electrification software and hardware startup founded by former Tesla Energy head Kunal Girotra, announced that it has secured $232 million in a series of funding rounds, with proceeds aimed at scaling its solutions to power homes with clean energy.

Launched by Girotra in 2020, California-based Lunar Energy constructs integrated solar and battery systems to enable homeowners to generate, store and manage clean energy while saving money and reducing emissions.

The company manages hundreds of thousands of energy devices across the United States through its Virtual Power Plant (VPP) software platform, connecting and coordinating home batteries, solar systems, EV chargers, and smart thermostats, enabling them to act together like a virtual power plant.

According to Lunar Energy, in the past year, its software earned customers an average of $464 through participation in a VPP program, and saved customers an additional $338 compared to a standard home battery operating mode.

Lunar Energy said that the new capital will be used to help expand its battery systems across the U.S., as well as to scale its distributed power software platform, Lunar Gridshare.

Kunal Girotra, Founder and CEO of Lunar Energy, said:

“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 financing included a $102 Series D round led by venture capital firms B Capital and Prelude Ventures, in addition to a previously unannounced $130 million Series C round headed by growth-stage VC firm Activate Capital. The Series C and Series D rounds also included participation from DCVC, Piva Capital, Leitmotif, Sunrun, Itochu Corporation, and Q Capital Partners.

Jeff Johnson, General Partner at B Capital, said:

“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.”