Your roof: Belprahon
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.
Request the weather assumptions, losses and monthly results behind the stated output. Request a schedule that accounts for weather, access and team availability.
Exposure and access: Belprahon
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.
Use the building’s hourly consumption to size the project. Price the necessary electrical distribution board changes and protection devices.
Full cost and grants: Belprahon
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.
Prepare a timetable showing procedures, approvals and work in their actual sequence. Include the constraints identified during the survey in the quotation.
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: Belprahon
Assess shifting compatible loads to solar hours before adding storage. Include maintenance, insurance and foreseeable replacements in lifetime cost.
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.
Request plans, equipment references and service boundaries before accepting a price. Check how equipment can be accessed and components replaced without damaging the roof covering.
