Heat pumps are used for the whole station, not only for single buildings.
Heat pumps extract low-grade heat from the soil (constant 12°C for NS Poort applications).
Energy efficiency gains:
The energy efficiency data is not yet available since the technology is still under investigation. Further data is to be expected due to planned new implementations in the coming years.
Costs (investments, operations, maintenance):
No economic information available yet.
Switch heating with heat pumps