A long-duration energy storage system newly backed by Goldman Sachs is “absolutely a strong fit” for offshore wind farms looking to store huge amounts of surplus power, said the boss of the group building giant plants based on compressed air technology.

Hydrostor CEO Curtis VanWalleghem said storing power from wind at sea and deals with corporations to offer 24/7 green energy supplies would be among the opportunities the Canada-based company can pursue after sealing a “transformational” $250m investment agreement with the finance behemoth.