Eos Energy Investor Presentation Deck

Strategic Framework Eos Product Evolution Continued technology improvement driving lower levelized cost of storage (LCOS) Gluing Bonding Performance Metric Non-Flammable Mfg. Cycle Time Energy Density (Wh/L) Round Trip Efficiency (RTE) 8 Self Discharge 20 Year Degradation No Calendar Aging Bolting Gen 1 3 hours 40 65 - 70% 3% per hour 14 - 17% Gen 2 2 hours 50 70 - 75% ~ 2% per hour 14 - 17% Gen 2.3 1.5 hours 85 75% - 78% < 2% per hour 12 - 14% Assembly Eos Z3 < 3 minutes 120 75 - 82% < 1% per hour 9 - 12% Z3 vs. Gen 1 120x 3x +10-12 pts +66% +5 pts eos

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