Your roof: Sierre
Adapt the project to the building’s use, whether a house, apartment building or business premises. Include future vehicle charging or heating changes in the consumption scenario.
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.
Show chimneys, roof windows and other obstacles on the installation layout. Keep the simulation assumptions so results can be compared after commissioning.
Exposure and access: Sierre
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.
Define included and excluded work during the technical survey. Record amounts, deadlines and revision terms in the offer.
Full cost and grants: Sierre
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.
Measure usable roof area with obstacles and required clearances included. Confirm voltages, currents and module compatibility with the selected inverter.
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: Sierre
Prepare a timetable showing procedures, approvals and work in their actual sequence. Identify the service contact and stated response times 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 Valais, residential photovoltaics first go through Pronovo; Any municipal aid or other energy measures must be confirmed before signature.
Check the simultaneous consumption used to estimate avoided electricity purchases. Request a schedule that accounts for weather, access and team availability.
