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Home / Orsted brings 250 MW / 500 MWh Old 300 battery online in ERCOT
Back·August 06, 2026·Energy-Storage.News
Read at Energy-Storage.News

Orsted brings 250 MW / 500 MWh Old 300 battery online in ERCOT

SolarNews Brief

Orsted has placed its 250 MW / 500 MWh Old 300 battery energy storage project in Needville, Texas, into operation. The system is fully integrated with ERCOT and is co-located with the 430 MW Old 300 Solar project, though it operates independently.

The Old 300 BESS is now operating in ERCOT and is designed to support grid stability by providing power when it is needed most. It sits alongside Orsted's 430 MW Old 300 Solar project, which has been operating since 2024 and has a power purchase agreement with Microsoft. Orsted says the combined solar and storage projects will provide about USD 110 million in property tax revenue for local infrastructure, schools and emergency services.

Read the full story at Energy-Storage.News

Source: Energy-Storage.News. Solar News summarizes; the complete story is on the publisher's site.

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