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Exowatt
Exowatt is a U.S. energy technology company developing modular power systems that combine solar generation, thermal energy storage, and electricity conversion. Its systems are intended to provide reliable, lower-carbon power for data centers and other energy-intensive infrastructure.
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Exowatt at a glance
Exowatt is an energy company headquartered in United States. It has raised at least $120M across the 2 funding rounds on record. Its most recent funding round, Series A, raised $50M in November 2025. Xcout tracks 2 named people at Exowatt, including Hannan Happi (CEO). Xcout recorded 31 job postings from Exowatt in the last 90 days, naming tools such as GitHub.
Exowatt leadership
- Hannan HappiCEO
- Hannan HappiCEO & Co-Founder of Exowatt
Exowatt funding rounds
At least $120M raised across the 2 rounds on record. Every round on record:
| Date | Round | Amount | Investors |
|---|---|---|---|
| Series A | $50M | 14 named | |
| Series A | $70M | 1 named |
Who invested in each round, lead investors, valuations and the co-investor graph — open the full funding history →
Hiring at Exowatt
Xcout recorded 31 job postings from Exowatt in the last 90 days, from a hiring record Xcout has kept since August 2026.
Tools named in Exowatt's job postings
The weekly hiring trend, the roles and locations behind it — see Exowatt's hiring signals →
Investors
Tech stack
Exowatt competitors
A few of Exowatt's closest competitors — see the full list of competitors and alternatives →
Copia Power is a U.S. developer of power and digital assets, specializing in gigawatt-scale campuses that integrate solar, energy storage, thermal, and digital infrastructure. The company is headquartered in Washington, DC, and focuses on powering the future.
Pacific International Energy Solutions Inc. (Pacifico Energy) is a global energy infrastructure firm that designs, finances, builds, and operates dedicated power solutions for large-scale energy users, including data centers. The company provides turnkey power systems encompassing natural gas, utility-scale solar, energy storage, microgrids, and offshore wind.
Solstice Storage is a company based in Idaho Falls, Idaho, that focuses on high-temperature solar thermal storage. Its innovative charging system is exclusively connected to direct sunlight.
Brightcore Energy LLC is a U.S. renewable-energy developer and contractor that designs, finances, builds, and operates distributed energy projects, including commercial solar photovoltaic systems, battery storage, LED lighting, and geothermal systems. It primarily serves commercial, industrial, institutional, and municipal customers.
Ossiaco is a Canadian clean-energy technology company that develops integrated residential energy systems combining solar power, battery storage, energy management, and electric-vehicle charging. Its products are intended for homeowners and clean-energy installers seeking backup power, greater energy independence, and coordinated management of household energy.
Solaria Energía y Medio Ambiente generates and supplies 100% renewable energy, focusing primarily on photovoltaic solar power generation and energy storage systems in Southern Europe. The company also develops digital infrastructure projects, such as data centers, to serve corporate and industrial energy demands.
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More on Exowatt in Xcout Intel
- 2 named people with titles, LinkedIn and board committees
- 2 funding rounds with the investors in each, and who they co-invest with
- Weekly hiring history and the mix of roles behind it
- The full competitor set, tracking, exports and API access