Puerto Rico battery contract, Invinity funding, and canceled Australian pumped hydro

Polaris Renewable Energy chose Trina Storage to supply equipment for a 35.7 MW eight-hour battery project in Puerto Rico, with operation targeted for the third quarter of 2027. Invinity Energy Systems confirmed a conditional £25 million fundraising to support vanadium flow battery development and manufacturing. Alinta Energy canceled its 900 MW Oven Mountain pumped hydro project in New South Wales after reviewing construction economics and infrastructure requirements.

EXPANDED:

Polaris Renewable Energy chose Trina Storage for the Punta Lima project, a 35.7 MW, eight-hour system in Puerto Rico. It sits under an accelerated storage program, with a 20-year power authority agreement signed in June 2026. Investment is estimated at $55 million–$60 million; deliveries are planned for spring 2027, targeting Q3 2027 operation.

Invinity Energy Systems confirmed a conditional £25 million raise, including £10 million from institutions, £12.2 million from the