Your roof: Villeret
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.
Compare quotation items for the same scope of work and supply. Distinguish avoided purchase costs from the tariff paid for exported surplus.
Exposure and access: Villeret
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.
Specify the work assigned to subcontractors and who is responsible for each task. Keep the simulation assumptions so results can be compared after commissioning.
Full cost and grants: Villeret
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.
Simulate generation and available surplus before choosing a battery. Record amounts, deadlines and revision terms in the offer.
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: Villeret
Check the simultaneous consumption used to estimate avoided electricity purchases. 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 the canton of Bern, photovoltaics are supported via Pronovo; building or municipal aid must be verified separately before signature.
Assess shifting compatible loads to solar hours before adding storage. Confirm voltages, currents and module compatibility with the selected inverter.
