‘World’s largest’ industrial heat battery is online and solar-powered

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By Michelle Lewis, Elektrek. 

Excerpt: Rondo Energy has begun commercial operations of what it says is the world’s largest industrial heat battery – a 100 MWh system now operating at a Holmes Western Oil facility in California. Powered entirely by an onsite solar array, the system supplies constant high-pressure steam and heat to the plant, demonstrating how renewable energy can directly power heavy industry. ...During the day, the off-grid solar array charges the Rondo Heat Battery, and the battery delivers stored heat 24/7. After 10 weeks of daily operation, Rondo says the system has met every performance target, achieving over 97% round-trip efficiency and operating at temperatures above 1,000 °C (1,832 °F). The 100 MWh unit provides the same volume of heat as 10,000 household heating systems.... 

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