Polarium Energy Solutions AB is a Swedish company founded in 2015 and headquartered in Stockholm. It specializes in developing smart, safe, and scalable lithium-ion battery energy storage systems (BESS) and related solutions.
The company offers products such as modular BESS for utility-scale and commercial applications, standalone lithium batteries, residential home energy storage systems, and supporting services including fleet management, cloud-based energy optimization, and lifecycle maintenance. These solutions support reserve power, peak shaving, renewable integration, EV charging, microgrids, and virtual power plants, serving industries like telecom, commercial & industrial, residential, and utilities.
With over 540,000 batteries installed across 80 countries and production facilities in Vietnam and South Africa, Polarium focuses on turning energy into measurable value through advanced battery management technology engineered in Sweden.
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1,600+ behind-the-meter batteries are aggregated into a cloud-controlled virtual battery via multi-asset tolling, enabling market access and grid stability; target ~300MW/810MWh, 10k+ sites
