Company Overview
About Exowatt
Exowatt is a clean energy startup founded in 2023 by Hannan Happi and Jack Abraham (Atomic CEO), developing modular, dispatchable solar systems designed to deliver reliable 24/7 power for AI infrastructure. Its flagship P3 platform stores solar energy as heat and converts it to electricity on demand — including overnight — eliminating the intermittency problem that has limited solar adoption for energy-intensive data centers. The company uses a U.S.-anchored supply chain built on domestically sourced materials, limiting rare earth, tariff, and Foreign Entity of Concern (FEOC) exposure while qualifying for Investment Tax Credit incentives.
Business Model & Competitive Advantage
Exowatt raised a $20M seed round backed by Sam Altman (OpenAI CEO), Leonardo DiCaprio, and others, followed by a $70M Series A led by Felicis Ventures in April 2025 and an additional $50M extension in November 2025 led by MVP Ventures and 8090 Industries — bringing total funding to over $140M. The company''s commercial pipeline has a demand backlog exceeding 90 GWh spanning U.S. data centers and energy developers. In January 2026, Exowatt launched ExoRise, a new arm that delivers turnkey powered land and energy infrastructure for hyperscale data centers, combining land, power, and P3 technology; the first ExoRise pilot project is expected to be operational by end of 2026.
Competitive Landscape 2025–2026
Exowatt sits at the intersection of two of the most capital-intensive trends of the 2020s: the AI infrastructure buildout and the clean energy transition. Data centers are the fastest-growing power consumers globally, and utilities are struggling to meet demand fast enough. Exowatt''s modular, factory-built approach targets this gap with a solution that avoids the permitting delays and grid interconnection bottlenecks of utility-scale projects. Competitors include traditional solar-plus-storage developers and emerging thermal storage players, but Exowatt''s integrated product-as-a-service model and high-profile backers give it significant market visibility.
Key Differentiators
Emerging Innovator
Exowatt is an emerging player bringing innovative solutions to the Climate & Energy market.
Frequently Asked Questions
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