Long Duration Energy Storage Systems for a Cleaner Future

One Technology - Two Products of Different Scale ESSIN EW 50k 400kWh TM EC ESS INC Energy Warehouse at Jean Airport Energy Warehouse" Behind the meter solution ▪ 50kW - 90kW configurable range First commercial deployment in 2015 ■ Generation II launched in 2020 Containerized design for turnkey delivery ■ Fast to build and commission ☐ Energy Center™ Front of the meter solution ■Customizable configuration range ■ Customer trials starting in 2021 ◉ "Battery in a Building" platform ■Modular design for utility-class RESS INC CONFIDENTIAL| 25

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