Troinex • Geneva

Solar panels: Troinex, Geneva Plan your project 2026

Your solar project: Troinex. Use the building’s hourly consumption to size the project. Request a schedule that accounts for weather, access and team availability. Request a technical site survey before relying on a sales estimate. Value surplus using the confirmed export contract, with guarantees of origin accounted for separately.

Verify the grid operatorCompare detailed quotesScenario: 8 kWp

Roof potential

To assess

Purchase — calculation hypothesis

CHF 0.260/kWh

Net cost — model

CHF 16'960

Payback — model

11-15 years

The 8 kWp scenario above uses the cantonal model assumptions: indicative output, 40 % self-consumption, hypothetical purchase and export tariffs, installed costs of CHF 2 200 to 2 800/kWp and assumed Pronovo support of CHF 360 to 400/kWp. It is not a local quote. Recalculate using your roof, hourly demand, contracts and confirmed grants; include fees, losses and replacements.

Your roof: Troinex

For a detached house, check roof condition, shading and electrical capacity before signing. A single owner’s decision still requires a technical roof survey.

In all cases, the useful surface area is almost always less than the gross surface area announced. Skylights, chimneys, setbacks, shading and future maintenance needs must be integrated before talking about final power.

Reserve space and access for inspections and future replacements. Agree on tests, inspections and documents to be provided at handover.

Exposure and access: Troinex

Request a survey of nearby shading and the horizon, with monthly generation estimates. Compare options for your building using the same weather data and loss assumptions.

Request the weather assumptions, losses and monthly results behind the stated output. Compare mounting and removal arrangements against the condition of the roof covering.

Full cost and grants: Troinex

The displayed scenario uses an indicative installed cost for 8 kWp. A quote must specify equipment, roofing and electrical work, connection, inspections and fees before deducting confirmed grants.

Programmes depend on the municipality and available funds. Obtain written confirmation of amounts, timing, limits and combined support for your address before including them in the budget.

Use the building’s hourly consumption to size the project. Keep the simulation assumptions so results can be compared after commissioning.

Output must be assessed for the actual roof, its orientation, shading and condition. Tariffs depend on the grid, product and contract; a cantonal average does not replace your bill.

Building procedures: Troinex

Simulate generation and available surplus before choosing a battery. Keep the simulation assumptions so results can be compared after commissioning.

A serious estimate specifies who prepares the announcement, who manages the connection, who follows the administrative back and forth and how any comments are absorbed into the planning.

In Geneva, check Pronovo, the SIG 2026 solar premium and municipal aid before signing. If the timeline is poorly managed, you lose time and sometimes value on helpers.

Prepare a timetable showing procedures, approvals and work in their actual sequence. Identify the service contact and stated response times after commissioning.

Compare installers: Troinex

When comparing installers, check the options for controlling appliances before adding storage. Then check commitments with stated amounts and dates. These details matter more than the advertised price alone.

The quality gaps are quickly seen in the annexes: level of technical inspection, self-consumption assumptions, electrical diagram, service after commissioning and clarity of service limits.

Before choosing an installer, ask who attends the site after a fault, the travel charges and stated response time. A registered office address does not establish service availability for your building.

Request plans, equipment references and service boundaries before accepting a price. Record who installs, inspects and supports each part of the system in the contract.

Places cited on this page — confirm service coverage

Troinex

Frequently asked questions: Troinex

Prepare these questions about the roof, costs, storage and procedures before comparing offers.

What should I check during the roof survey?

Specify access, lifting equipment and protection of the work area. Confirm voltages, currents and module compatibility with the selected inverter.

How should I compare self-consumption and exports?

Compare avoided purchase costs and surplus export prices with your hourly demand. Self-consumption reduces purchases when generation is used on site; the choice also depends on full cost and losses.

How should I assess adding a battery?

First compare an option without storage for the same demand. Define included and excluded work during the technical survey. Confirm the supporting structure, anchor points and mounting design.

Which procedures should I confirm for this building?

The procedure depends on the plot, building and integration. Present the plan to the municipality to confirm notification or permit requirements and any protection constraints before ordering.

What should I request from installers?

When comparing installers, check the self-consumption assumptions. Then check long-term access and maintenance arrangements. These details matter more than the advertised price alone.

Guides to nearby towns

Veyrier Carouge

Prepare your solar project: Troinex

Compare detailed offers, check the construction method and lock in the right order between roofing, quotes and procedures.

Get serious offers Read the quote guide