Context and motivation
Planners are looking for a solution that provides fast profitability analysis considering as many real life factors as possible. This implies taking into account a variety of different effects when accounting for more complex and “sector-coupled” systems.
Most current methods are very limited, i.e. including only a restricted number of technologies. Also, their application is highly time consuming, as every system component needs to be dimensioned individually.
A medium-sized condominium in Berlin (135 MWhel/a). was subject of investigation.
The building’s energy efficiency needs to be benchmarked and KPIs need to be defined. This is done in accordance to ISO 50001:2018, including both electricity, heating, and cooling efficiency.
Techno economical optimization, load profile generation, power-to-heat, electrical autharchy. Elaboration of one scenario including CHP, PV, Wind Turbines, Heat Pumps, Compression Chiller, Boiler and Heat Storage.
LCoE reduction: electricity 37%, heating 55%, cooling 29%. Self-sufficiency level: 70%. The study shows high savings potential for the building, making investment attractive (estimated break-even-time: 4 years).