BIPV/T energy complementation system suitable for northern areas in winter and integrating heat supply and warm keeping

The utility model discloses a BIPV/T energy complementation system suitable for northern areas in winter and integrating heat supply and warm keeping, the system is composed of a heat supply unit and a warm keeping unit, the heat supply unit is composed of a biomass boiler assembly and an air source heat pump assembly, the biomass boiler assembly is composed of a photovoltaic heat collector, a terrestrial heat coil, a biomass boiler, a biogas fireplace, an air source heat pump assembly and an air source heat pump assembly, and the air source heat pump assembly is composed of an air source heat pump assembly. The electric control valve is arranged on the hot water storage tank; the air source heat pump assembly is composed of a photovoltaic heat collector, a geothermal coil pipe, an electric control valve, a heat storage water tank and an air source heat pump. The thermal insulation wall further comprises a thermal insulation unit, and the thermal insulation unit is composed of a wall body which is provided wi