Eos Energy Results Presentation Deck

Commercial Pipeline & Orders Backlog Independent Developer vs. Utility Backed Projects Highlighting two indicative customer types Project Development ✓ Identify opportunity & select technology Perform feasibility studies ✓ ✓ Secure permitting Project Execution INDEPENDENT DEVELOPER Quicker to embrace new technologies ✓ Manage project build process Secure debt &/or equity financing Project Operation Merchant vs. fully contracted Conduct ongoing operations and maintenance (O&M) 15 $ Operator General Framework¹ Investor Investor (1) Represents general framework; specific customer framework may vary Developer Developer $ Developer Operator 1 Detailed Diligence 2 3 4 A- UTILITY BACKED PROJECTS Takes more time to review before committing - 4+ ■ Initial Pilot Project 28.9 M I Pes -$' - Small Commercial Project ■ In-depth tech and financial review Operational data for proof of concept Select technology for non-commercial small installation System operations under field conditions ACA -4. ■ Utility commission awareness Full Scale Approval -☀ ■ H Prove out use cases Eos on approved vendor list Utility commission approved Estimated Timing 9-12 Months 18 - 24 Months 24 - 36 Months 36-48 Months eos

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