The (coverage) shares of the individual energies are given as percentages in relation to the respective area.
Energies
Energy generated / Year
- Energy output from the heat pump
- Energy output from the boiler
- Energy output from the solar system (= delivered energy of the solar circuit minus solar storage losses)
- Energy output from the heating element
Utilized energy / Year
- Space heating
- Domestic hot water
Power consumption / Year
- Power for the heat pump or its compressor
- Power for auxiliary energy (pumps, fans)
- Power for a solar circuit pump
- Fuel for a boiler in bivalent systems
Losses / Year
- Tank losses
- …fraction of solar tank losses
- Circulation of the domestic hot water
- Solar circuit piping in the house
- Solar circuit outdoor piping
Solar loop
- Solar fraction, energy from the solar system, based on the sum of generated energies
- Solar fraction, domestic hot water
- Utilization rate of the solar system
- Irradiation on the solar collector area
- Energy emitted by the solar collectors
Photovoltaic system
Energy / Year
- Generated PV Energy = Generated energy of the photovoltaic system in one year
- Of which own consumption = Generated PV energy absorbed by the electrical consumers (the electrical consumers are defined on the page System Selection)
- Of which surplus = Generated PV Energy - own consumption
- Self-consumption share = own consumption * 100 / Generated PV Energy
Consumption / year
- Total electr. energy consumed = Consumption of all electrical consumers in this system
- Of which covered by PV = Generated PV energy absorbed by the electrical consumers (the electrical consumers are defined on the page System Selection)
- Of which purchased externally = Energy not generated by this plant (usually purchased from the local grid operator)
- Degree of self-sufficiency = energy purchased externally / covered by PV