Combined heat and power device Combined-Heat and Power 1 Concept studies 1 Digital storage 1 Electric energy storage 1 Electric heating 1 Electric power transmission networks 1 Electrolysis 1 Flexibility option 1 Fossil fuels 1 Fuel cells 1 Grid power 1 Heat pump systems 1 Heat pumps 1 Heat storage 1 Hydrogen storage 1 In-buildings 1 Power devices 1 Prosumer 1 combined heat and power devices 1 flexibility options 1 hydrogen storage 1 prosumers 1