City with 240,000 inhabitants, single and multi-family houses, industry and commerce
— Diameter / height: 25 m
— Volume: 12,300 m³
— Storage capacity: 5,000 MWh (Charging with electrical energy, e.g. from wind / PV, storage temperature 850 °C)
The city can be heated for 43 days with an amount of 4 x 5,000 MWh of heat.