Heating is now mostly obtained by burning gas, coal or wood. This is now common in household and with the exception of gas and coal non-industrial consumption. All these substances have harmful emissions. Solutions are being sought in large heat networks where the heat (and by means of a heat exchanger to be converted into AC) is supplied as a residual product from industrial productions. Expensive in construction, but relatively inexpensive to use. The harmful emissions caused by industrial productions are not included in the performance calculations: if these are included, this heat is heavily polluting. In addition, it is a consideration that a very large network entails a security risk. A central failure can put the entire network down. Geothermal heat, seen by many as an alternative, is expensive to install and the pump causes annoying noise.
When hydrogen is released, approximately 90°C of heat is released. In a neighborhood community, the hydrogen can be converted centrally into a sustainable electricity using a fuel cell and the heat that is released through a limited heat network provides heat and with an AC heat exchanger. Suppose one opts for individual heating and electricity, a release box can be placed that is fed by a cassette with H2Fuel powder that is available at the supermarket when the full cassette with spent fuel (regeneration) is returned. It is conceivable that a deposit principle will be introduced.