Goldman Sachs Asset Management has made a preferred equity financing commitment of $250m in Hydrostor to support the latter’s 1100MW Advanced Compressed Air Energy Storage (A-CAES) projects in Australia and California.
Goldman Sachs will fund its investment in tranches tied to project milestones to match Hydrostor’s capital needs and accelerate project execution throughout development, construction, and operations alongside Hydrostor’s development partners.
The financing will also support Hydrostor’s global development and marketing initiatives, including expansion of its project pipeline and capabilities in markets with significant near-term demand for flexibly sited long-duration energy storage.
Hydrostor chief executive Curtis VanWalleghem said: “We are delighted with this investment by Goldman Sachs. It is transformational for Hydrostor and validates the competitiveness of our proprietary A-CAES solution as well as the strength of our pipeline of potential projects.”
Goldman Sachs Asset Management head of energy transition private equity investing Charlie Gailliot said: “As the world continues transitioning to sustainable and renewable energy sources, the need for utility-scale long-duration energy storage is clear, and Hydrostor’s A-CAES solution is well positioned to become a leading player in this emerging global market.
“We look forward to working with the Hydrostor team over the coming years and leveraging our firm’s global platform to support Hydrostor’s growth, which will play a central role in the ongoing energy transition.”
VanWalleghem added: “I would like to thank our existing investors, including ArcTern Ventures, Lorem Partners, Canoe Financial, and Business Development Bank of Canada, all of whom will remain our partners. Hydrostor’s evolution has been made possible by their support and support from various agencies of the Government of Canada.
“I would also like to thank outgoing directors Elisabeth Hivon and Tom Rand for their service and welcome Charlie Gailliot, Sebastien Gagnon, and Gunduz Shirin from Goldman Sachs to our board.”
An impression of Hydrostor’s planned Broken Hill project is pictured.


