Eos Energy Investor Presentation Deck

Building Commercial Momentum Inflection Point in the Energy Transition $12.9B opportunity pipeline¹ with higher LDES demand 16 Commercial Trends Deeper engagement post DOE LPO & Z3 Launch Opportunity Segmentation Avg. COD 4Q '27 1Q '26 3Q '25 Size > 1 GWh > 250 MWh < 250 MWh $ in billions Amount ~$8.7 -$3.7 ~$0.4 42% utility opportunity pipeline (1) As of 11/30/2023 (2) Average Selling Price (ASP) Note: Numbers may not add due to rounding eos Active Proposals ~54% Developed in 2023 COD Timing ~60% 2026 and beyond 2023 ASP² ~40% Higher than 2021 Discharge Duration ~64% > 6 hrs. of discharge eos

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