Heat pumps and electricity - the importance of changed comfort temperatures
The use of air-air heat pumps will be analysed to establish the technical and behavioural reasons why heat pump purchases do not always reduce the consumption of energy. Focus will mainly be on the use of heat pumps for cooling purposes and, secondly, on the future need for cooling in Danish homes
The results show that a average electricity saving at 23 % for 138 all-year houses, while there was no electricity saving in the 343 summer houses. The theoretical technical saving potential by converting direct electrical heat to air-to-air heat pump should be around 50 %.
The project team recommends that new heat pump users demand more energy efficient air-to-air heat pumps with energy label with the lowest set-point for 12 degrees. Experiences from the project confirms earlier assumptions about that there is a certain rebound effect with energy efficiency. This means that energy organisation must take into account that about a fifth of the technical saving potential with energy efficiency in average is converted in increased comfort.
Key figures
Category
Participants
| Partner | Subsidy | Auto financing |
|---|---|---|
| IT Energy ApS | ||
| SEAS-NVE STRØMMEN A/S | ||
| AURA Rådgivning A/S |
Contact
Aalborg Universitet. Statens Byggeforskningsinstitut (SBi)
Dr. Neergaards Vej 15
DK-2970 Hørsholm
www.sbi.dk
Gram-Hansen, Kirsten , 99402291, kgh@sbi.dk
Øvr. Partnere: IT-Energy; SEAS-NVE Service
