Stem wins deal to add 160 MWh of battery storage to Hungary solar plants

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Stem's PowerTrack EMS Enables Hybridization of Two Operating Utility-Scale Solar Plants in Hungary

August 12, 2026 4:00 PM EDT

Five-year agreement extends Stem's existing plant power control foundation as Solarmarkt Group adds 160 MWh of battery storage across two major sites in Hungary

HOUSTON--(BUSINESS WIRE)-- Stem, Inc. (NYSE: STEM), a global leader in AI-enabled clean energy software and services, today announced that Solarmarkt Group, together with engineering, procurement, and construction (EPC) partner Pannonwatt Energetikai Megoldások Zrt. (Pannonwatt), has selected Stem's PowerTrack Energy Management System (EMS) as the integrated energy management, power plant control (PPC), and SCADA platform for the hybridization of two operating utility-scale solar plants in... More