Fourth Power
Assembly Line
Fourth Power Secures $19M for Low-Cost Utility-Scale Thermal Energy Storage to Enable a Fully Renewable Grid
To meet the growing demand for renewable energy on the grid, Fourth Power has received $19 million in Series A funding to scale its cost-effective groundbreaking thermal battery technology. The investment round was led by the venture capital firm DCVC, with participation from Breakthrough Energy Ventures (BEV) and Black Venture Capital Consortium. In addition to helping scale the company’s thermal energy storage solution, which can store energy for both short- and long-term durations to be put back on the grid as electricity, the investment will initiate the construction of a 1 MWh-e prototype facility outside Boston, with a 2026 anticipated completion date.