Residential · 2026
Integrated solar roof · Rolle (VD)
Full-black in-roof system · modern architecture
Vaud · 0 to 25 km from Rolle
Solar panel & heat pump installer on La Côte
Nyon, Morges, Rolle, Gland, Aubonne — our home territory.
- Free on-site study
- Detailed quote within 7 days
- Cantonal subsidies handled
- Direct installer
La Côte is where we work every single day. Our depot and our crews are based in Rolle, right in the heart of the district. We deliver around a hundred installations here each year — family homes, condominiums, vineyards, farms — everywhere between Coppet and Allaman. Being this close means we can be on site within 24 hours whenever one of our installations needs attention, with no call-out charge.
Local proof
Our installations in canton Vaud.
167
167 completed installations
Breakdown by product
94 heat pumps
50 solar installations
11 batteries
3 EV chargers
2 multi
Projects
Our projects near you.
Solar carport · 2025
Residential carport · St-Prex (VD)
21 panels · 4 kW
Residential · 2025
Integrated roof · Tannay (VD)
9 kW · lithium-ion storage
Residential · 2025
Detached house · Cottens (VD)
86 panels · 12 kW
Residential · 2023
Detached house · Denges (VD)
6 kW · thin-film · lithium-ion storage
Heat pump · 2024
Flat roof · Denges (VD)
alpha innotec air-to-water heat pump · among the solar panels
Service area
Towns we serve — La Côte.
Nyon
1260
Morges
1110
Rolle
1180
Gland
1196
Aubonne
1170
Coppet
1296
Bursins
1183
Tartegnin
1180
Allaman
1165
Mies
1295
Local context
What to know about energy in La Côte.
Climate & sunshine
Mild lakeside microclimate on Lake Geneva: 1,500 to 1,700 hours of sunshine a year and gentle winters (-2°C on average). Solar payback here is among the best in Switzerland for this latitude. Air-to-water heat pumps run at full efficiency all year round with no significant electric backup.
Architecture & constraints
A mix of detached villas, condominiums and winery buildings. Many gabled and hipped roofs face south or west thanks to the natural slope down to the lake. A few protected villages (Bursins, Mont-sur-Rolle) call for a discreet installation: in those cases we favour full-black panels or in-roof (integrated) systems.
Grid & connection
Grid operator: Romande Energie. Typical grid-connection lead time: 3 to 6 weeks after the application is filed. Good feed-in capacity across nearly the entire district.
I.ON advice
Our recommendations for La Côte.
01
Plan ahead for a pool heat pump
Private pools are everywhere on La Côte. If you are installing PV now, size in an extra 1.5 to 2 kWp to cover a future pool heat pump — it will save you a second extension three years down the line.
02
Get the architectural integration right
The wine-growing communes (Bursins, Féchy, Mont-sur-Rolle, Tartegnin) grant permits far more readily when the panels are integrated into the roof rather than mounted on top. The cost difference (~10%) is offset by a much cleaner look.
03
Combine PV with an EV charger
With daily commutes between La Côte and Geneva or Lausanne, an 11 kW charger coupled to your PV system pays for itself remarkably fast (3 to 4 years). Have the SG-Ready wiring put in when the PV goes up.
2026 subsidies
Grants available in La Côte.
Pronovo one-off federal grant
Federal subsidy for any new PV installation: roughly 320-380 CHF/kWp for small systems (<30 kWp), paid out once after commissioning. For an 8 kWp system: ~3,000 CHF.
Canton of Vaud subsidies
Canton Vaud pays a subsidy on top of the Pronovo grant for PV systems, plus heat pump grants through the Buildings Programme. Typical amounts of 800-2,500 CHF per project, which can be combined with municipal grants.
Vaud tax deduction
The net cost after subsidies is deductible from your taxable income as an energy investment. Typical tax saving of 25-35% of the net amount, depending on your marginal rate.
Exact amounts vary from year to year and depend on the specifics of each project. We always calculate the maximum combination of grants available when preparing your quote.
Frequently asked questions
FAQ — La Côte.
Does I.ON serve Nyon, Morges and Coppet without travel charges?
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Yes. Every commune on La Côte (the districts of Nyon and Morges) sits within our priority service area around our Rolle headquarters. No travel charges for quotes or for warranty call-outs.
How long from quote to commissioning on La Côte?
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Allow 8 to 12 weeks after accepting the quote for a standard residential solar installation. That covers ordering the equipment, the Romande Energie grid-connection application (3-6 weeks) and the installation itself (2-4 days).
What system size for a five-room family villa on La Côte?
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For an average consumption of 4,500-6,000 kWh/year, we typically size 7 to 10 kWp. If a heat pump or an electric car is on the cards, we go up to 10-14 kWp to keep self-consumption high.
Our services
Everything we install in La Côte.
Other regions we serve
I.ON operates across all of Western Switzerland.
Free quote
Free energy studyfor your home,no obligation.
On-site visit, consumption analysis, detailed cost simulation. Full quote delivered within seven days. If your project is not technically or financially viable, we tell you straight.
- 7 daysDetailed quote turnaround
- FreeOn-site study, no commitment
- 100 %Subsidy applications handled for you
