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Department of Energy
DOE SBIR/STTR funds clean energy, nuclear, fusion, grid modernization, and advanced manufacturing startups. ~$400M/year. Phase I: $200K (6-12 months). Phase II: $1.1M (2 years). Ideal for cleantech, energy storage, hydrogen, carbon capture startups. This is Phase I (proof of concept / feasibility study).
Last updated: 6/23/2026