Investor Presentaiton

Market Need - Malta fills a critical gap to meet system needs Diurnal, multi-day and weekly applications ■ Meets system needs ◉ unaddressed by short-duration Li-ion alone Complements seasonal storage Complements existing hydro assets as well as new, advanced fuel production (e.g., hydrogen) 1 Adapted from U.S. DOE / EPRI, 2015. MALTA Hrs Duration Sec Min. Storage Applications by Power Rating and Discharge Time1 Power Supply Reliability/ Power Quality Transmission & Distribution Support / Load Shifting Li-Ion Battery Flywheel 1kW 100kW 1 MW PROPRIETARY AND CONFIDENTIAL 10MW Bulk Power Management Pumped Hydro MALTA 100MW System Power Rating (Module Size) 1GW 6

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