{"id":141071,"date":"2026-08-05T21:41:12","date_gmt":"2026-08-05T21:41:12","guid":{"rendered":"https:\/\/www.europesays.com\/dk\/141071\/"},"modified":"2026-08-05T21:41:12","modified_gmt":"2026-08-05T21:41:12","slug":"tesla-megapacks-power-orsteds-big-new-texas-grid-battery","status":"publish","type":"post","link":"https:\/\/www.europesays.com\/dk\/141071\/","title":{"rendered":"Tesla Megapacks power \u00d8rsted’s big new Texas grid battery"},"content":{"rendered":"

\t\"Tesla
\n\t\t\t\tOld 300 Storage. Photo: \u00d8rsted\t\t\t<\/p>\n

Tesla Megapacks are now helping support the Texas grid at \u00d8rsted\u2019s new 250 MW\/500 MWh Old 300 battery storage project.<\/p>\n

Old 300 Storage in Needville, southwest of Houston, is fully connected to the ERCOT grid. At full output, the battery energy storage system (BESS) can deliver 250 MW of power for two hours.<\/p>\n

The Megapacks were built at Tesla\u2019s Megafactory in Lathrop, California, the largest industrial utility-scale BESS factory in the US.<\/p>\n

Each Tesla Megapack<\/a> arrives with battery modules, inverters, thermal management, and controls integrated into one unit. That reduces the amount of equipment that needs to be assembled on-site. Tesla\u2019s current two-hour Megapack configuration provides about 1.9 MW of power and 3.85 MWh of storage per unit.<\/p>\n

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Megapacks can charge when electricity is plentiful and discharge when the grid needs more power. They can also provide grid services that help manage voltage and frequency \u2013 important in Texas, where demand is climbing, and extreme weather can sharply tighten the balance between electricity supply and use.<\/p>\n

Old 300 Storage sits next to \u00d8rsted\u2019s 430 MW Old 300 Solar<\/a>, but the BESS and the solar farm operate independently. The battery isn\u2019t limited to storing electricity generated by the solar farm; it can charge from and discharge to the wider ERCOT grid.<\/p>\n

Old 300 Solar has been operating since 2024 and generating enough power annually to serve around 80,000 Texas homes and businesses, according to \u00d8rsted. Together, the solar and battery projects are expected to generate around $110 million in property tax revenue for local schools, infrastructure, and emergency services.<\/p>\n

\u201cBattery energy storage has played a large role in providing much-needed power to ERCOT in times of tight supply and demand margins,\u201d said Melissa Peterson, president of \u00d8rsted Americas Onshore.<\/p>\n

The project adds another 500 MWh deployment to Tesla\u2019s growing stationary storage business and expands \u00d8rsted\u2019s operating US onshore portfolio to around 6 GW. Tesla says it has more than 58 GWh of industrial storage systems operating in over 65 countries.<\/p>\n

Read more: \u00d8rsted\u2019s largest solar farm in the world is now online in Texas<\/a><\/p>\n

\"\"<\/a><\/p>\n

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Your personalized heat pump quotes are easy to compare online and you\u2019ll get access to unbiased Energy Advisors to help you every step of the way. Get started here<\/a>. \u2013 *ad<\/p>\n

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FTC: We use income earning auto affiliate links. More.<\/a><\/p>\n

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