TZ Stromag, Filiale Fiesch
3984 Fiesch · about 120.8 km
TZ Stromag is a full-service provider of electrical engineering, specializing in installations, telematics, automation, and switchgear construction.
stromag.chSolar panels · Wattwil

At a glance
Small project
CHF 8'800 – CHF 16'500
Typical project
CHF 16'200 – CHF 29'300
Large project
CHF 28'000 – CHF 49'700
| Project | Quantity | Low | High | Per unit |
|---|---|---|---|---|
| Small project | 5 kWc | CHF 8'800 | CHF 16'500 | CHF 2'500 |
| Typical project | 10 kWc | CHF 16'200 | CHF 29'300 | CHF 2'200 |
| Large project | 18 kWc | CHF 28'000 | CHF 49'700 | CHF 2'100 |
Computed with our estimator for Wattwil (regional factor included), standard finish. Only the project size changes.
Included
Not included
In Wattwil, the federal building register lists 1'908 residential buildings and 4'480 dwellings. These municipal benchmarks help put your home in context, but do not replace an individual assessment.
72 % built before 1980
Construction year does not reveal past renovations: check the current insulation condition.
30 % · Gas
This distribution describes recorded buildings, not your system's consumption or efficiency.
| Energy | Heating | Hot water |
|---|---|---|
| Gas | 30 % | 19.9 % |
| Heating oil | 19 % | 11.7 % |
| District heating | 5 % | 4.2 % |
| Heat pump | 22 % | 21.4 % |
| Electricity | 2 % | 30.2 % |
| Wood | 22 % | 6.9 % |
| Solar thermal | 0 % | 5.7 % |
Each line gives the share of buildings using that energy, separately for heating and for hot water. The two columns do not always reach 100%: some buildings combine two systems, or reported none.
A standard non-condensing boiler is usually older and less efficient.
18.5 % of buildings mix housing with shops or offices.
For your renovation projects in Wattwil, the official building register provides vital insights. With 28 buildings listed under heritage protection out of 55 known cases, it is essential to contact the municipality early to discuss permit requirements, though note that data coverage is partial. Regarding building scale, which is critical for planning insulation and heating upgrades, the median house volume for the 8 structures measured under the SIA 416 standard is 1292 m3. Utilizing these figures allows you to accurately assess the scope of work and navigate regulatory expectations effectively before starting your renovation in this municipality.
Source : OFS — RegBL (export communal complet). Existing residential buildings; percentages of recorded values.
To encourage the energy transition, the federal government offers valuable support. The federal one-off remuneration, managed by Pronovo, significantly lowers the investment required for small solar power systems.
This contribution helps cover a portion of your construction costs. It is highly recommended to submit your application as early as possible to secure this grant.
RenoIndex assists you in this process by providing clear cost estimates, allowing you to plan your project while factoring in these available federal incentives for your home.
The profitability of a solar installation depends not just on roof size, but primarily on your self-consumption rate. The more energy you use for your household appliances, the less you buy from the grid, maximizing your savings.
Consider synchronizing high-energy appliances with peak sunlight hours. Use RenoIndex to simulate your installation costs.
A better understanding of initial investments allows for a more accurate return on investment calculation and helps you determine the payback period for your solar panels effectively.
This greatly facilitates project implementation in Wattwil. However, ensure you comply with current safety standards and technical requirements. To avoid surprises, use RenoIndex to get a comprehensive cost estimate before beginning.
Thorough preparation simplifies your interactions with local authorities and ensures the success of your installation project.
An energy renovation project like solar panel installation requires rigorous budget planning. Between equipment, installation, and connection costs, it is easy to lose track.
Our RenoIndex estimator is the perfect tool to quickly get a price range adapted to the Swiss market. In just a few clicks, you will have a clear view of the expenses for your home in Wattwil.
Start calculating your project now and make informed decisions for your energy independence while increasing your property value.
1. Estimate
Set a budget range with the estimator.
2. Grants
Apply before work starts.
3. Quotes
Compare at least 3 quotes.
4. Permit
Check with the municipality whether a permit is needed.
5. Works
Follow the site and do a written handover.
No specific grant listed for this work. Maintenance tax deductions may still apply.
3984 Fiesch · about 120.8 km
TZ Stromag is a full-service provider of electrical engineering, specializing in installations, telematics, automation, and switchgear construction.
stromag.ch2832 Rebeuvelier · about 125.9 km
Eco6therm specializes in the installation of heating systems, particularly heat pumps, and solar photovoltaic energy solutions.
eco6therm.ch2740 Moutier · about 130.3 km
Company in Moutier specializing in plumbing, heating (oil, wood, heat pumps), and solar thermal and photovoltaic solutions.
bmonnerat.ch2740 Moutier · about 130.3 km
Moutier-based company specializing in tinsmithing, roofing, ventilated facades, and solar panel installation.
zbinden-joye.chSuggestions from the commercial register by distance and activity. Not an endorsement or partnership.
For most roof-mounted systems, a notification is usually sufficient as they are considered suitably integrated. However, check local regulations with your municipality to ensure full compliance.
The one-off remuneration is managed at the federal level by Pronovo. You must submit your application online via the Pronovo portal after planning and validating your installation.
A modern solar system is designed to operate optimally for 25 to 30 years. Inverters may require replacement after 10 to 15 years of service.
Yes, a south orientation is ideal for maximum yield. However, east or west-facing surfaces can also be very effective for producing energy throughout the day.