Thermal solar collectors
Solar thermal collectors for heating domestic hot water are subsidized:
- 250.- CHF/m2 gross collector area
- max. 3.6 m2 per person
- Heating support: If thermal solar collectors are also demonstrably used to a significant extent for heating support, this proportion can be taken into account on a subsidiary basis as part of the funding for building services installations.
Funding application
The funding application and the power of attorney must always be submitted in full and on paper, including all enclosures. Submissions by e-mail are not sufficient. The content of applications will only be processed once the application documents have been received in full.
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Further documents/ tools
Procedural authorization funding application (document template)
Official survey, national map, aerial photographs
Building permit_Office for Building Construction and Spatial Planning
Information sheet on heating tape, as of 15.03.2021
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Only new, state-of-the-art systems and system components and appliances are to be used.
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Hot water must be heated primarily using the subsidized building services system, thermal solar collectors or a heat pump boiler. Purely electric boilers are not permitted in subsidized systems.
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Electrically operated pipe trace heating systems and hot water circulation systems must be connected with a timer, ideally via an all-pole disconnection point (socket). This is because pipe trace heating systems are large consumers of electricity and should be operated in a targeted manner. If there is a disconnection point (socket), consumption can be measured and simply unplugged if unnecessary operation/service is required.
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Circulation pumps of energy efficiency class A (EEI ≤ 0.23) must be installed for hot water circulation. If a circulation pump is installed that does not comply with energy efficiency class A (EEI ≤ 0.23), the subsidy will be reduced by CHF 300 per pump.
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Heat pump boilers with a COP of at least 3.2 according to EN 16147 with test condition A20/W10-55 must be installed.
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The heating and hot water systems, including all distribution pipes, must be fitted with continuous thermal insulation. The minimum insulation thicknesses can be found in the following table:
|
Nominal pipe diameter DN |
Inch |
for λ > 0.03 W/mK |
for λ ≤ 0.03 W/mK |
|---|---|---|---|
| 10-15 | 3⁄8" - 1⁄2" | 40 mm | 30 mm |
| 20-32 | 3⁄4" - 1 1⁄4" | 50 mm | 40 mm |
| 40-50 | 1 1⁄2" - 2" | 60 mm | 50 mm |
| 65-80 | 2 1⁄2" - 3" | 80 mm | 60 mm |
| 100-150 | 4" - 6" | 100 mm | 80 mm |
| 175-200 | 7" - 8" | 120 mm | 80 mm |
Start of Construction – Forfeiture of Entitlement The entitlement to receive funding grants lapses if the measures are commenced before a legally binding approval of the funding has been issued.
Project Author / Planner Funding grants are only paid out if competent planning and professional implementation of the measures are ensured.
Time Limit In accordance with Art. 25 of the Energy Act (EEG), the funding approval is subject to a time limit. The measure must be started within one year of the decision on the granting of funding and completed within two years.
Mandatory Other Provisions The measure is not subsidized if it is mandatory due to other legal regulations in accordance with Art. 4. para. 2a) EEG (e.g. development plan, air conditioning, swimming pool heating, conversion, etc.).
Repeat Funding Funding grants are awarded only once per measure; repeat funding of the same measure is only possible after a period of 20 years has elapsed.
For the assessment of any potential funding after 20 years, the original funding approval date is decisive.
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