Your roof: Péry-La Heutte
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.
Use the building’s hourly consumption to size the project. Check how equipment can be accessed and components replaced without damaging the roof covering.
Exposure and access: Péry-La Heutte
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.
Prepare a timetable showing procedures, approvals and work in their actual sequence. Value surplus using the confirmed export contract, with guarantees of origin accounted for separately.
Full cost and grants: Péry-La Heutte
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.
Request plans, equipment references and service boundaries before accepting a price. Agree on tests, inspections and documents to be provided at handover.
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: Péry-La Heutte
Specify access, lifting equipment and protection of the work area. Specify fall protection and access for installation and maintenance.
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 the canton of Bern, photovoltaics are supported via Pronovo; building or municipal aid must be verified separately before signature.
Check building protection and appearance requirements with the relevant authority. Compare mounting and removal arrangements against the condition of the roof covering.
