Exowatt vs Electric Hydrogen
Side-by-side comparison of AI visibility scores, market position, and capabilities
Exowatt builds modular 24/7 dispatchable solar systems (P3) that store solar energy as heat for around-the-clock AI data center power; raised $140M+ including Sam Altman backing; launched ExoRise in January 2026.
About
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.
Electric Hydrogen designs and manufactures 100MW+ industrial electrolyzer systems for green hydrogen production at scale; raised $380M in funding including a $200M Series C in 2023;
About
Electric Hydrogen is a Natick, Massachusetts-based clean energy company founded in 2020 by Raffi Garabedian (former CEO of First Solar) and David Eaglesham. The company designs and manufactures large-scale industrial electrolyzers — systems that use electricity to split water into hydrogen and oxygen — intended to produce green hydrogen at the cost and scale required to decarbonize heavy industries. Electric Hydrogen's core product is a 100MW electrolyzer plant that represents one of the largest single electrolyzer systems commercially available, designed for industrial customers in steel, ammonia, chemicals, and fuel production who need hydrogen at massive volumes.
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