Your roof: Diesse Plateau
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.
Check building protection and appearance requirements with the relevant authority. Include the constraints identified during the survey in the quotation.
Exposure and access: Diesse Plateau
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.
Compare quotation items for the same scope of work and supply. Check how equipment can be accessed and components replaced without damaging the roof covering.
Full cost and grants: Diesse Plateau
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.
Specify the work assigned to subcontractors and who is responsible for each task. Specify fall protection and access for installation and maintenance.
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: Diesse Plateau
Measure usable roof area with obstacles and required clearances included. Value surplus using the confirmed export contract, with guarantees of origin accounted for separately.
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.
Simulate generation and available surplus before choosing a battery. Distinguish avoided purchase costs from the tariff paid for exported surplus.
