Heat pump Saarbrücken
Heat pumps in Saarbrücken at a glance
The city council adopted municipal heat planning on 23 June 2026 – thereby meeting the statutory deadline of 30 June 2026. SWS supplies the city with electricity, gas and district heating. Saarland does not provide a flat percentage grant, but rather low-interest SIKB loans.
See also: Nationwide basis. KfW 458, GEG and technical minimum requirements apply in Saarbrücken without restriction.
RECOMMENDED PROVIDERS
Funding in Saarbrücken
| Item | Value |
|---|---|
| KfW 458 (federal funding) | active |
| SIKB Erneuerbare Energien Standard | low-interest loan for a heat pump, up to 100 % of eligible net costs, term 5/10/20 Jahre |
| SIKB Modernisierung selbstgenutztes Wohneigentum | up to 80 % eligible costs, max. 75.000 EUR, fixed interest rate 1 % for the entire term (up to 30 Jahre) |
| SWS tariffs | special heat-pump electricity tariffs |
Details of KfW 458 are available in the nationwide basis. Saarland does not offer flat-rate percentage grant funding for heat pumps; instead, SIKB provides low-interest loans, in some cases with a fixed interest rate of 1 per cent.
Application process and responsible bodies
Lower Water Authority of the City of Saarbrücken
Located in the Umweltamt. The Landesamt für Umwelt- und Arbeitsschutz (LUA) is centrally responsible for water-law approval of geothermal energy use in Saarland.
SWS Stadtwerke Saarbrücken
Supplier of electricity, gas and district heating. Offers advice on replacing heating systems.
SIKB (Saarländische Investitionskreditbank)
Provides low-interest loans for modernisation and heat-pump projects.
Telephone: 0681 3033-0 (housing hotline: 0681 3033-333)
Status of municipal heat planning
| Step | Date |
|---|---|
| Launch of heat planning | 24 July 2025 |
| Resolution by the city council | 23 June 2026 |
| Federal deadline | 30 June 2026 (met) |
As the only major city in Saarland with more than 100.000 inhabitants, Saarbrücken adopted its municipal heat plan on time. The existing stock and potential analysis shows that around 87 per cent of heat demand is attributable to residential buildings and public facilities (total heat demand approx. 1.836 GWh/year).
Local features
Saarbrücken has a district-heating network. The city has identified significant potential for renewable heat sources: geothermal energy, solar thermal energy, industrial waste heat and river heat. SWS is an important partner. SIKB offers low-interest loans for heat-pump projects.
Frequently asked questions
Which funding applies to my heat pump in Saarbrücken?
Primarily the federal KfW 458 funding and low-interest SIKB loans, including modernisation loans up to 75.000 EUR at a fixed interest rate of 1 per cent. Saarland does not offer flat-rate percentage grant funding.
Who approves a geothermal probe in Saarbrücken?
The Landesamt für Umwelt- und Arbeitsschutz (LUA), rather than the city itself, is centrally responsible.
Does Saarbrücken have a heat plan?
Yes, the city council adopted the municipal heat plan on 23 June 2026 – the statutory deadline of 30 June 2026 was met.