Founder · Base Power

Justin Lopas

Co-founder & COO of Base Power, a distributed energy storage company based in Austin.

Co-founder · COOAustinDistributed Energy Storage
Founded
2023
Austin, United States
Raised to date
$2.3B
4 rounds on record
Latest round
Series D
$1B · 2026-08-03
Team
201–500

About

Justin Lopas is Co-founder & COO of Base Power, a distributed energy storage company based in Austin, founded in 2023. Base Power's most recent disclosed round was a funding round of $1B in 2025-10.

Compiled from StartupFox records · updates as coverage is published

Company

Est. 2023
Base Power
Distributed Energy Storage · Austin · 201–500 people · Active

Base Power installs and owns home battery systems that provide backup power to households while feeding stored electricity back to the grid at times of peak demand. It sells electricity directly in deregulated markets such as Texas and works with utilities in regulated ones, and manufactures its Base Core battery at its Austin factory.

Funding
2026-08-03Series D$1BRibbit Capital, Addition, Valor Equity Partners, JPMorganChase Strategic Investment Group, Altimeter Capital, D1 Capital Partners, Sands Capital, Coatue, Layer Global, Energy Impact Partners, Thrive Capital, Andreessen Horowitz, Lightspeed Venture Partners, Trust Ventures, CapitalG
2025-10Series C$1BAddition, Ribbit Capital, CapitalG, Trust Ventures, Valor Equity Partners, Thrive Capital, Lightspeed Venture Partners, Andreessen Horowitz, Altimeter Capital, StepStone, Elad Gil, 137 Ventures, Terrain, Waybury, Spark, BOND, Lowercarbon, Avenir, Glade Brook, Positive Sum, 1789
2025-04Series B$200MAddition, Andreessen Horowitz, Lightspeed Venture Partners, Valor Equity Partners, Thrive Capital, Altimeter Capital, Terrain, Trust Ventures
2024-05Series A$68MNot disclosed
Company profile →4 rounds on record

Journey with Base Power

3 milestones
  1. 2023Founded

    Founded in Austin by Zach Dell and Justin Lopas, who met when Dell toured Anduril's Costa Mesa factory where Lopas was head of manufacturing.

  2. Aug 2025Milestone

    Expands into Dallas proper, extending a North Texas footprint that already covered Fort Worth, Arlington, Plano and Irving.

  3. 3 Aug 2026Milestone

    Launches Base Core, a home battery designed and built at Base Factory 1 in Austin, offered in 39.2 kWh and 78.4 kWh configurations.

Also building Base Power

ZDZach DellCo-founder · CEO→

Coverage

1 story
Funding · 4 Aug 2026 · 5 min read
Base Power Raises $1 Billion Series D at $13 Billion Valuation and Launches Its Own Home Battery