Deals Counterparts

Sunrun partners with Lunar Energy for VPPs

Partnership Battery Storage announced USA Feb 4, 2026
USD230M
Deal Value
500 MW
Capacity
operating
Stage

Sunrun has an ownership stake in Lunar Energy and uses its software to manage VPPs across a dozen markets, including California; Gridshare aggregated a portion of Sunrun’s 500-megawatt fleet of home batteries that participated in California’s Demand Side Grid Support program.

Source Intelligence

KEY DETAILS

Lunar Energy raised $102 million in Series D and $130 million in Series C. "The new cash means the company has raised about $530 million since its founding in 2020 by Kunal Girotra, a former head of Tesla Energy."

Deal Size
Lunar Energy said today that it raised $230 million to fund an expansion of its home battery systems and virtual power plant software.
Capacity
Right now, Lunar Energy makes enough battery systems a year for about 10,000 homes and manages about 650 megawatts of distributed devices.
Location
as it expands its customer base from California into other states including Illinois, Nevada, Texas, and Utah.
Announcement
Catherine Boudreau February 4, 2026
PARTIES MENTIONED IN SOURCE
L
Lunar Energy developer

"Home battery startup Lunar Energy aims to quadruple its manufacturing"

B
B Capital investor

"The cash comes from an oversubscribed Series D round of $102 million, let by B Capital and Prelude Ventures"

P
Prelude Ventures investor

"The cash comes from an oversubscribed Series D round of $102 million, let by B Capital and Prelude Ventures"

A
Activate Capital investor

"as well as a previously unannounced $130 million Series C led by Activate Capital."

S
Sunrun partner

"Key to Lunar Energy’s growth in VPPs so far has been its partnership with Sunrun."

P
PG&E utility

"While they aren’t yet in wide use, certain early adopter utilities, most notably PG&E , are testing VPP programs that use software to aggregate home batteries and other devices and shift loads when the grid is stressed, such as during heat waves."

T
Tesla Energy competitor

"The company’s competitors include Tesla Energy — which also participated in a major DSGS pilot with Sunrun last summer"

O
Octopus Energy competitor

"and Octopus Energy."

V
Voltus VPP provider

"The latter this week announced a deal with VPP provider Voltus"

high quality Enriched Feb 19, 2026

Timeline

Announced
Feb 4, 2026
Signed
Closed

Market Context

This deal is part of the Battery Storage sector in USA.
84
Battery Storage deals
206
deals in USA
1 of 84 Battery Storage deals tracked this month · Updated daily

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