Your roof: Ayent
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 plans, equipment references and service boundaries before accepting a price. Identify the service contact and stated response times after commissioning.
Exposure and access: Ayent
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.
Check building protection and appearance requirements with the relevant authority. Record who installs, inspects and supports each part of the system in the contract.
Full cost and grants: Ayent
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.
Compare quotation items for the same scope of work and supply. Confirm the supporting structure, anchor points and mounting design.
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: Ayent
Define included and excluded work during the technical survey. Request a schedule that accounts for weather, access and team availability.
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 Valais, residential photovoltaics first go through Pronovo; Any municipal aid or other energy measures must be confirmed before signature.
Specify the work assigned to subcontractors and who is responsible for each task. Price the necessary electrical distribution board changes and protection devices.
