In 2025, BESS installations surpassed 320GWh, a y-o-y increase of over 50%. While this tells one-side of the story, the growth in cell and system shipments tells an even more significant one, writes Benchmark’s Iola Hughes.

The market share of vertically integrated battery cell and BESS companies has fallen since 2023, market intelligence firm Rho Motion said.

Wood Mackenzie’s BESS supply rankings list shows ‘intensifying regional competition and shifting dynamics’ as Tesla remains number one.