https://www.renewableenergymagazine.com/storage/first-commercial-sandbased-thermal-energy-storage-is-20220707 https://www.renewableenergymagazine.com/storage/fi

https://www.renewableenergymagazine.com/storage/first-commercial-sandbased-thermal-energy-storage-is-20220707 https://www.renewableenergymagazine.com/storage/first-commer... This is 8MWh (of heat), the 1000 gallon oil tank is about 40MWh. Something like a two story basement filled with sand at the maximum temperature of a home oven is probably in the ballpark.