To reduce your bill in Valais, start with the tariff for your address and your consumption. Compare settings, renovation and solar using a full budget rather than assuming one price or payback period applies across the canton.
Identify the tariff for your address Find the DSO, product, year, billing period and meter on your bill. Check the schedule for your municipality and consumption profile. A cantonal average cannot replace your contract; households in a canton do not necessarily share a supplier or tariff.
Compare matching periods Match readings, estimates, kWh, advance payments and adjustments. Separate energy, network, metering, levies and VAT. A higher total may reflect consumption or a different period. Check actual charges before attributing the difference to a general price rise.
Choose measurable savings Identify heating, hot water, charging and unnecessary appliance use. Compare timing, cost, comfort and safety before changing settings. Night electricity is not always cheaper; use your contract’s time bands and prices. Assess control adjustments before buying equipment.
Calculate solar for your home Request monthly generation and consumption during the same hours. Distinguish electricity used on site from sold surplus. Include installed cost, maintenance, finance and replacement. Solar does not freeze every household cost for decades. Compare a battery with a version without storage under the same assumptions.
Confirm grants and payback Have Pronovo support calculated and local programmes checked for the specific project. Confirm conditions, combined support and application timing before ordering. Payback must follow from the quote and actual tariffs under conservative and favourable scenarios. Savings after payback are not all net profit when costs remain.
A situation to assess in Valais: an intermittently occupied home In this example, a residence is used on some weekends and during holidays. This assumption must match your home; it does not describe every Valais property. Build an occupancy calendar before calculating consumption instead of using the profile of a family present all year.
Distinguish operation during absence from warming the home before arrival. Have settings needed to protect the building validated. Remote controls must respect equipment limits and remain usable by the person responsible for maintenance.
For the roof in question, request an assessment of the horizon, shading, snow and access. A good annual result does not establish energy availability during your chosen winter visit. Compare those periods explicitly in the simulation.
Finally, calculate what happens to surplus when nobody is present. Check remuneration, contractual restrictions and ongoing charges. If backup is a goal, define essential uses and required runtime. Neither an app nor a billing credit replaces that technical assessment.