While lithium-ion remains dominant, pressure is building for longer-duration storage, safer chemistries and more resilient supply chains in the face of AI-driven load growth, data center demand, wildfire risks and tightening domestic content rules. . Tesla, BYD & CATL are some of the businesses capitalising on the intermittent nature of solar power with storage systems set to grow to support renewables Solar photovoltaic (PV) and wind have constituted the majority of new global power capacity for several years according to the United Nations. . Longer-duration storage, safety-driven procurement and FEOC compliance are starting to push alternative chemistries closer to scale. The energy storage industry walked a bumpy road in 2025, but eyes are turning toward 2026's tech stack. While lithium-ion remains dominant, pressure is building for. .