Long Duration Energy Storage Systems for a Cleaner Future

12 ESS Wins on Cost Capital Cost ($/kWh) RESS INC Illustrative Cost Comparison Versus Li-Ion Competitive with Li-Ion at 4 hours; ESS wins thereafter ESSNE Li-Ion How ESS' Technology Delivers Superior Economics¹ 4 hours No scaling $200/kWh Marginal cost of $20/kWh 12 hours $200/kWh Li-Ion ESS 'INC Li-Ion $200/kWh $80/kWh LCOS at 4 hours vs. 12 hours² $0.07 $0.08 RESS INC $0.02 $0.05 4 12 16 12 hours 4 hours Duration (hours) Figures shown are illustrative. Superior economics based on Levelized Cost of Storage (LCOS). LcOS = Σ. CapEx +Σ. Installation +Σ. Disposal +Σ.0&M Σ. Annual Usable KWh CONFIDENTIAL | 15

View entire presentation