Pure PV calculation · PVGIS Merano reference

Estimate solar PV and payback clearly.

The main calculation shows only PV yield, self-consumption, support and PV payback. Mining with PV surplus is optional and receives its own separate calculation.

Your inputs

Annual electricity usekWh/yearUsable roof aream²

Target PV capacity12.0 kWp

Battery storage10 kWh

OrientationShading

Calculate automatically: PV €1,300/kWp + battery €300/kWh

Costs, energy value & support

PV + battery project cost€ gross · switch off automatic pricing to enter your own priceGrid electricity price€/kWh · your assumption

Exported-energy value€/kWh · your assumptionSupport scenario

For an eligible principal home, the 50% tax deduction is selected by default and modelled over ten years. Support routes are not stacked; eligibility and tax capacity require individual review.

Calculate crypto mining with PV surplus separatelyOptional. The pure PV calculation stays unchanged; this model uses only estimated PV surplus and no grid electricity.

Technical estimate

PV capacity and energy

Technically possible PV capacity–limited by the selected capacity and usable roof area

Yield per kWp and year–

Annual PV yield–

Annual self-consumption–

Self-sufficiency–

Roof-area limit–

CO₂ orientation value–

Financial orientation

PV payback with disclosed assumptions.

Estimated simple payback–before finance, maintenance, degradation and price inflation

Annual energy value–

Support value in scenario–

Effective cost after total support value–

Favourable-to-cautious range–

The range varies annual energy value by ±10%. With the tax deduction, the full project cost is paid initially and the benefit is spread over ten years. This is not a quotation, grant promise or tax advice.

Review the result

Method · reviewed 5 September 2026

PV and surplus mining remain two calculations.

PV starts from the PVGIS Merano reference and the preselected 50% principal-home deduction. Optional mining uses only estimated PV surplus; mining revenue and heat value appear exclusively in its separate payback calculation.

Technical sources:

BITMAIN S21 Pro: 234 TH/s, 3,510 W and 15 J/TH.
Coin Metrics – HashRate: daily 2022–2025 network data for the BTC comparison.
EU JRC PVGIS – Merano: 1,356.6 kWh/kWp/year, rounded to 1,350.
No revenue, price, support or payback guarantee. Mining, cooling, noise, hydraulics, tax and permits require review.

Next step

Review your roof photo and electricity bill together.

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Estimate solar PV and payback clearly.

PV capacity and energy

PV payback with disclosed assumptions.

Use PV surplus for Bitcoin and heat.

PV and surplus mining remain two calculations.

Review your roof photo and electricity bill together.