Romanens Construction SA
1279 Chavannes-de-Bogis · about 5.1 km
General contractor specialized in masonry and sustainable construction, offering energy-autonomous solutions and low-environmental impact projects.
romanens-groupe.chHome solar battery · Versoix
Home solar battery in Versoix
Indicative price, tips, grants and companies for your project in Versoix (Geneva).
At a glance
- Typical budget
- CHF 7'900 – CHF 16'900
- Midpoint
- CHF 11'600
- Grants found
- 0
- Nearby companies
- 4
Worked examples in Versoix
Small project
CHF 4'400 – CHF 10'000
Typical project
CHF 7'900 – CHF 16'900
Large project
CHF 13'600 – CHF 28'000
| Project | Quantity | Low | High | Per unit |
|---|---|---|---|---|
| Small project | 5 kWh | CHF 4'400 | CHF 10'000 | CHF 1'300 |
| Typical project | 10 kWh | CHF 7'900 | CHF 16'900 | CHF 1'200 |
| Large project | 18 kWh | CHF 13'600 | CHF 28'000 | CHF 1'100 |
Computed with our estimator for Versoix (regional factor included), standard finish. Only the project size changes.
Cost split (typical project)
- Labour : CHF 2'300 (20 %)
- Materials : CHF 8'100 (70 %)
- Other costs : CHF 1'200 (10 %)
What the price covers
Included
- Supply and installation
- VAT
- Battery, charge management and standard connection; options according to answers
Not included
- Permits and architect fees
- Unexpected structural issues
- Possible subsidies
- Solar panels and complete electrical refurbishment
Tips before you start
- A battery is worthwhile when solar output clearly exceeds your daytime use.
- Size capacity by evening consumption, not panel power.
- Check compatibility with your existing inverter before buying.
Your project in 5 steps
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.
Grants and subsidies
No specific grant listed for this work. Maintenance tax deductions may still apply.
Versoix's housing stock in figures
The federal building register lists 1'406 residential buildings with 5'552 dwellings in Versoix. 51% were built before 1980, before serious insulation standards, and 74% are still heated with oil or gas.
Only 10.9% of residential buildings in Versoix report a solar thermal system in the register, so most roofs are still free. Photovoltaics are not recorded there; check the solar cadastre for your roof.
Age of residential buildings
- Before 191914 %
- 1919–19459 %
- 1946–19609 %
- 1961–197010 %
- 1971–19809 %
- 1981–199016 %
- 1991–200013 %
- 2001–201010 %
- Since 201110 %
Main heating energy
- Gas44 %
- Heating oil30 %
- Heat pump17 %
- Electricity4 %
- District heating3 %
- Wood2 %
- Solar thermal1 %
Heating and hot water: which energies?
| Energy | Heating | Hot water |
|---|---|---|
| Gas | 44 % | 40 % |
| Heating oil | 30 % | 27.5 % |
| District heating | 3 % | 1 % |
| Heat pump | 17 % | 3.9 % |
| Electricity | 4 % | 9.1 % |
| Wood | 2 % | 1 % |
| Solar thermal | 1 % | 10.3 % |
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.
Type of heating system
- Boiler (unspecified)66.7 %
- Heat pump16.8 %
- Condensing boiler5.3 %
- Standard boiler3.4 %
- Heat exchanger (district)2.8 %
- Direct electric heaters2.3 %
- Central electric heating1.7 %
- Stove0.5 %
A standard non-condensing boiler is usually older and less efficient.
Houses or apartment buildings?
- Single-family houses67.1 %
- Two-dwelling houses7.2 %
- Apartment buildings (3+)25.7 %
10 % of buildings mix housing with shops or offices.
The typical building
- storeys (median)
- 3
- median footprint
- 118 m²
- median dwelling area
- 90 m²
Renovations, heritage and volumes
For your renovation plans in Versoix, the official building register data provides limited insights due to partial coverage. Information regarding heritage protection status and the year of renovation is not currently recorded. Furthermore, building volume data, measured under the SIA 416 standard, lacks specific median values to guide your project scale. Given the absence of these figures, it is essential to contact the municipality directly. Engaging with local authorities early is the best way to obtain the precise technical details required for planning heating or insulation works and ensuring your renovation cost estimates are accurate.
0
buildings flagged as protected
status known for 22 of 1'406 buildings; check with the municipality
Source : OFS — RegBL (export communal complet). Existing residential buildings; percentages of recorded values.
Companies in the area
Société coopérative enerko
1252 Meinier · about 9.5 km
The enerko cooperative develops renewable energy projects, including the installation of photovoltaic systems, battery storage, and heat pumps.
enerko.chLa Maison des Energies SA
1201 Genève · about 10.2 km
La Maison des Énergies specializes in energy transition solutions, including the installation of photovoltaic panels and heat pumps.
lamaisondesenergies.chCP CIPRIANO SA
1203 Genève · about 10.7 km
CP Cipriano SA specializes in electrical installations, photovoltaics, charging stations, and heat pumps in Geneva and Vaud.
cipriano-electricite-geneve.chSuggestions from the commercial register by distance and activity. Not an endorsement or partnership.
Other works in Versoix
Kitchen renovationBathroom renovationNew flooringInterior paintingWindow replacementRoof renovationFacade insulationHeat pump installationSolar panelsSolar water heatingTerrace constructionFence installationStairwell renovationElevator installation or upgrade