PHT Energietechnik GmbH

Solar calculator Switzerland

Estimate solar potential with a few details.

The calculator uses transparent Swiss indicative values. It does not replace a roof survey, grid review, quotation or incentive confirmation.

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Solar calculator Switzerland

Calculate solar potential

Enter annual use, suitable roof area and a few assumptions. The result estimates system size, production, self-consumption, investment and payback.

Quick startOptimistic starting exampleThe starting values show the potential of an efficient project. Every value remains editable.
1

1. Building and consumption

More accurate inputs provide a more useful initial estimate.

kWh
m²
–Indicative PV capacity from roof area: .
Adjust more assumptionsSystem size, self-consumption, cost, tariffs and incentive
2

2. System and self-consumption

The benefit increases when your own solar power is used directly or shifted in time.

kWp
kWh
%
kWh/kWp
m²
3

3. Cost and tariffs

Every value can be changed. Defaults are simplified Swiss assumptions.

CHF/kWp
CHF/kWh
CHF/kWh
CHF/kWh
CHF

Simple payback: investment after the estimated incentive divided by the self-consumption saving plus export income. Maintenance, degradation, finance, tax and future component replacement are not included.

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Ask PHT to review the result

Send the key figures for a property-specific assessment.

Send free solar enquiry →

Frequently asked questions

Frequently asked questions

Are the results binding?

No. This is an initial model. Roof condition, shade, grid, local tariffs, incentives and quotations may change the result.

Can I send the result to PHT?

Yes. A project enquiry with the calculated figures can be prepared below the result.

Would you like to know what is possible for your property?

Your address, annual consumption and photos of the roof, meter cabinet and plant room are enough for an initial assessment.

Request a free assessment →Send photos via WhatsApp