Ørsted launches 500 MWh battery storage project in Texas with Tesla Megapacks

The Old 300 facility, co-located with a 430 MW solar farm, brings online 250 MW of battery capacity using Tesla systems to support the ERCOT grid.

First covered Aug 5, 2026 · 1:45 PM PT · 3 articles · no longer in the live window

Ørsted launches 500 MWh battery storage project in Texas with Tesla Megapacks — Image via electrek.co

Coverage

51d Electrek A 500 MWh Tesla Megapack battery just went live in Texas — Tesla Megapacks are now helping support the Texas grid at Ørsted’s new 250 MW/500 MWh Old 300 battery storage project.

51d PV Magazine Ørsted turns on 500 MWh battery project with co-located solar in Texas — The Old 300 Storage project has reached commercial operations and is now fully integrated with the ERCOT grid, using made-in-America Tesla battery energy…

52d Electrek Tesla Megapacks power Ørsted’s big new Texas grid battery — Tesla Megapacks are now helping support the Texas grid at Ørsted’s new 250 MW/500 MWh Old 300 battery storage project.

Related coverage

51d Electrek Tesla starts Megapack 3 production with 28% more energy per unit

More coverage from around the web

solarpowerworldonline.com Ørsted adds 500 MWh of Tesla BESS to ERCOT grid

us.orsted.com Ørsted Announces New Battery Energy Storage System in Fort Bend County

power-technology.com Ørsted begins commercial operations at Old 300 Storage in US

prnewswire.com Ørsted Announces Commercial Operations of Energy Storage System in Fort Bend County, TX

europesays.com Ørsted puts 500MWh Old 300 Texas BESS into operation - EUROPE SAYS

Appeared in: 2026-08-06 (#6) · 2026-08-07 (#9)

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