Funding round
Lunar Energy Series C
Lunar Energy, which works in clean energy system manufacturing in Mountain View, raised $130M in a Series C round announced on 4 Feb 2026, led by Activate Capital. 7 firms took part. It is Lunar Energy's second venture round on record; the one before was a Growth in Aug 2022.
$130M
Amount raised
Not disclosed
Post-money valuation
7
Investors
1 lead
Valuation
What this round says about the price
Lunar Energy did not disclose a valuation in this round. It came 42 months after Lunar Energy's Growth. It is 24% of the $532M Lunar Energy has raised in the venture rounds on record. Lunar Energy raised again: a Series D round of $102M in Feb 2026.
Investors
Who put money in
Activate Capital led the round with 6 other firms.
Lead investor
- backs 29 venture-backed companies new investor
Also in the round
- DCVC backs 171 venture-backed companies new investor
- backs 20 venture-backed companies new investor
- backs 8 venture-backed companies new investor
- Sunrun new investor
- Itochu Corporation new investor
- backs 3 venture-backed companies new investor
Use of proceeds
What the money is for
According to the announcement, the money goes to product development, geographic expansion and scaling operations.
- Product development
- Geographic expansion
- Scaling operations
Comparable rounds
How it compares
6 Series C rounds in Batteries within a year either side disclosed an amount; the median was $59M, and this round was 2.2 times the median. The closest in time, other companies' Series C rounds in Batteries:
| Company | Announced | Amount | Post-money | Led by |
|---|---|---|---|---|
| Batteries | 8 Apr 2026 | $141M | not disclosed | Khosla Ventures |
| Batteries | 6 May 2026 | $60M | $1.00B | Symbotic |
| Batteries | 1 May 2026 | $58M | $1.17B | Samsung Venture Investment |
| Batteries | 31 Oct 2025 | $12M | not disclosed | Yotta Capital Partners |
| Antora Batteries | 30 Jul 2026 | $550M | $2.47B | G2 Venture Partners and Eclipse |
| Batteries | 21 Aug 2026 | $20M | $430M | Rising Tide Ventures |
Sources
Where this comes from
Reported by 4 sources.
Questions
Frequently asked
How much did Lunar Energy raise in its Series C round?
Lunar Energy raised $130M in its Series C round, announced in Feb 2026.
Who led Lunar Energy's Series C round?
Activate Capital led it, with DCVC, Piva Capital, Leitmotif, Sunrun and Itochu Corporation and 1 more.
What was Lunar Energy's valuation at the Series C round?
It was not disclosed.
How does it compare with other Series C rounds in Batteries?
6 Series C rounds in Batteries within a year either side disclosed an amount; the median was $59M, and this round was 2.2 times the median.
Did Lunar Energy raise again after this round?
Yes: a Series D round in Feb 2026 of $102M.