I looked up the following paper: https://www.researchgate.net/publication/326121453_Drake_Landing_Solar_Community_10_Years_of_Operation https://www.researchgat

I looked up the following paper: https://www.researchgate.net/publication/326121453_Drake_Landing_Solar_Community_10_Years_of_Operation https://www.researchgate.net/publication/326121453_Drake_Lan... They get around 2000 GJ/year out of the storage, so 555 MWh, so 10.7 MWh/home. Estimated current price of the system 4 millions USD (excluding one off 3 millions USD R&D costs) so 77000 USD/home. 7.2 USD/kWh of yearly thermal storage. LFP battery is probably currently below 100 USD/kWh, so for this use the thermal battery is 10x cheaper.