A heat pump operation method includes: obtaining, on a per time unit basis, generated power which is an amount of power generated by a power generation device, load power which is an amount of power consumed by an electric load, and surplus power which is ...

A distributed power generation system according to the present invention includes: a distributed power generator (1) configured to generate electric power and heat, and supply the electric power and the heat to an electrical load (26) and a heat load (32);...

The heating system has a fuel cell device (12) and a cooling device (22) for the fuel cell device. A latent heat storage device (34) is coupled to a cooling circuit (24) and a heating circuit (42) is coupled to the latent heat storage device. A heating med...

The system has a fuel cell heater (1), preferably with reformers for producing hydrogen-rich process gas from thermal energy for consumable water and heating and an arrangement for storing thermal energy with at least two hot water tanks (2,3) with integra...