Flow battery manufacturer ESS goes public via SPAC acquisition

As the renewable energy sector is growing amid dropping prices and policy incentives, energy storage startups are also seeking their share of the market. In the last year, zinc battery maker Eos Energy Storage, Stem and recycler Li-Cycle have all entered the marketplace via SPAC, as have electric vehicle startups Fisker and Nikola. The results have been mixed — Stem stock, for instance, has fallen since peaking in February — but the interest shows the level of growth for the storage sector, said Sam Wilkinson, director of solar and energy storage research for IHS Markit.