Monthly roundup · Energy · August 2026

Energy startup funding, August 2026: Base Power's $1.0B Series D leads 17 rounds

By Millionrounds ResearchPublished 1 September 2026Updated 25 October 2026

We read 17 equity rounds in Energy announced in August 2026, raising $4.1B between them: 8% of all the rounds we read that month and 17% of the money. The largest was Base Power's $1.0B Series D, led by Valor Equity Partners and Ribbit Capital. The median seed round was $20M, against $5.0M over the last twelve months in Energy; at Series A it was $40M.

Equity rounds17in Energy, 16 with an amount
Raised$4.1Bacross those rounds
Lead named88%of rounds say who led
Share of the month8%of rounds; 17% of the money

The biggest rounds

  1. 1BBase PowerSeries D · United States · led by Valor Equity Partners, Ribbit Capital$1.0B
  2. 2Valar AtomicsSeries B · United States · led by Sequoia Capital$1.0B
  3. 3Form EnergySeries G · United States · led by T. Rowe Price$750M
  4. 4AntaresSeries C · United States · led by Paradigm, Caffeinated Capital$470M
  5. 5PanthalassaGrowth · United States · led by Hanwha Asset Management, 8090 Industries$225M
  6. 6Emerald AISeries A · United States · led by DCVC, Energize Capital$150M
  7. 7EErco EnergíaSeries C · Colombia$129M
  8. 8Velaura AISeries A · United States · led by Seligman Ventures$110M
  9. 9DDongxi FusionPre-seed · China$45M
  10. 10Ore EnergySeries A · Netherlands · led by HV Capital, Plural$43M

Day by day

Equity rounds in Energy announced each day of August. The busiest day was 4 August, with 3.

1 August31 August

By stage, against the year

Each stage's median this month beside its twelve-month median: the sector's own where we hold enough rounds for a benchmark, otherwise the one across all sectors.

Pre-seed1$45Mthis month$2.0M12 months, all sectors
Seed2$20Mthis month$5.0M12 months here
Series A7$40Mthis month$26M12 months here
Series B1$1.0Bthis month$50M12 months, all sectors
Series C2$300Mthis month$100M12 months, all sectors
Series D1$1.0Bthis month$150M12 months, all sectors
Growth2$225Mthis month$113M12 months, all sectors

Where

United States had the most Energy rounds this month.

Against the month

  • Rounds, Energy17
  • Rounds, all sectors220
  • Raised, Energy$4.1B
  • Raised, all sectors$25B

The whole of August 2026

Other sectors in August

117 roundsAI→32 roundsFintech→24 roundsRobotics→21 roundsConstruction→18 roundsHealthcare→18 roundsSoftware→14 roundsLogistics→14 roundsBig Data & Analytics→13 roundsDefence Tech→12 roundsEnterprise Software→12 roundsCloud→11 roundsCleantech→11 roundsBiotech→11 roundsCybersecurity→10 roundsClimate Tech→