What is Hydrostor?
Hydrostor specializes in the development and operation of proprietary long-duration energy storage systems, utilizing a patented compressed air and water-based technology. By providing storage capabilities that extend for eight hours or more, the company addresses the inherent intermittency of renewable energy sources like wind and solar. This technological edge allows grid operators to maintain consistent power delivery, effectively bridging the gap between variable generation and peak demand. As a leader in the clean-tech space, Hydrostor is instrumental in enhancing grid resilience and supporting the global shift toward sustainable energy architectures.
How much funding has Hydrostor raised?
Hydrostor has raised a total of $319M across 4 funding rounds:
Grant
$4M
Private Equity
$10M
Private Equity
$250M
Other Financing Round
$55M
Grant (2021): $4M with participation from Natural Resources Canada
Private Equity (2021): $10M led by BDC
Private Equity (2022): $250M supported by Goldman Sachs
Other Financing Round (2025): $55M featuring Export Development Canada
Key Investors in Hydrostor
Goldman Sachs
Goldman Sachs is a leading global investment banking, securities, and investment management firm providing a wide range of financial services to corporations, governments, and institutional clients.
Export Development Canada
Export Development Canada is a financial institution that provides risk management, secure financing, and working capital services to support international business growth.
BDC
The Business Development Bank of Canada provides financial and consulting services to small and medium-sized businesses, with a strong focus on technology and export-oriented sectors.
What's next for Hydrostor?
With the recent capital injection, Hydrostor is well-positioned to accelerate its project pipeline and expand its international footprint. The company's strategic focus will likely center on scaling its compressed air energy storage (CAES) facilities to meet the rising demand for grid-scale storage solutions. By leveraging its established partnerships with major financial institutions and government agencies, Hydrostor is poised to navigate the complexities of large-scale infrastructure development, ensuring that its technology remains at the forefront of the global energy transition. Future milestones will likely involve the commissioning of new sites and the further optimization of its storage efficiency to maintain a competitive advantage in the rapidly evolving energy storage market.
See full Hydrostor company page
