GigaJ KiloW-HR 1 electrictiy consumption of building per month in kWh 1 heat consumption of building per month in m3 1 water consumption of building per month in m3 1 solar energy production of building per month in kWh 1 1 1 1 1 1 M3 1 cold energy consumption of building per month in GJ 1 gas consumption of building per month in m3 Unit-of-Measurement