In Jura, compare heating, solar generation and storage using your building’s data. Savings depend on consumption, equipment and the tariff for your address; a battery is not automatically necessary.
Start with the building and its energy use Request an assessment of heating demand, insulation, emitters and operating temperatures. Heat-pump consumption cannot be inferred from a fixed share of every household’s bill. Compare settings, renovation and replacement using seasonal performance and full cost.
Align generation and consumption Compatible scheduling can shift some hot-water preparation or heating towards solar hours. Check controls, comfort, efficiency and warranty. A heating buffer and a domestic hot-water tank serve different purposes. Increasing self-consumption is not useful if it creates unnecessary consumption.
Assess winter separately Request monthly and hourly profiles: solar generation and heating demand do not coincide throughout the year. High winter self-consumption does not mean panels cover all heating. Include necessary grid purchases, periods without sunshine and actual tariffs in the calculation.
Assess the battery and backup Physical storage is limited by power, usable capacity and state of charge. Compare a version without a battery for the same home and uses. A commercial “virtual storage” credit supplies neither heat nor power during an outage. Separately confirm backed-up circuits, heat-pump starting requirements and switching time.
Have professionals configure controls Weather forecasts and control functions depend on models and interfaces. Ask which functions are supplied and tested. Do not prescribe overheating or deep discharge from a general rule: limits must suit the building, occupants, manufacturer and backup reserve.
Prepare the budget and grant applications Separate photovoltaic equipment, heating, storage and additional work in the quote. Confirm grants and application timing before deducting support. Compare costs, maintenance, finance and replacement under several tariff and consumption assumptions.
A case to prepare in Jura: available roof space and modest consumption Consider a home whose roof allows several configurations but whose occupants use little electricity during the day. Verify this situation in readings; it does not automatically describe Jura’s housing stock. Compare versions from actual needs rather than filling the whole roof without a calculation.
Request expected generation, the portion used directly and the volume sold separately. Show the effect of a less favourable feed-in tariff in a second estimate. Surplus revenue must correspond to an identifiable offer with a stated duration and conditions.
Before choosing power, obtain the relevant DSO’s assessment of connection and export. If work is needed, specify cost, timing and responsibility. Control equipment can change energy flows but does not itself constitute connection approval.
Finally, compare certain expenses with expected benefits. A smaller system, changed schedules or later expansion can be assessed as alternatives without being presented as invariably preferable. The decision should remain understandable when surplus-sale assumptions change.