PV Wizard

Is solar worth it for you? Plan a rooftop or balcony system in minutes – real PVGIS weather data, yield, payback & CO₂. Local tariffs for 8 countries.

Plan your own solar system in minutes – whether a rooftop array or a plug-in balcony system. PV Wizard calculates realistic yields, payback and CO₂ savings based on real weather data from the European Commission (PVGIS).

EIGHT COUNTRIES, LOCAL RULES Germany, Austria, Switzerland, Luxembourg, France, the United Kingdom, Ireland and Italy – electricity prices, feed-in tariffs, subsidy notes, CO₂ grid mix and balcony-solar limits adapt automatically to your system's location.

TWO MODES – ONE APP

• Rooftop array: 7-step wizard for gable, mono-pitch, hip, pyramid and flat roofs or façades – with true roof geometry and a realistic module layout
• Balcony solar: 4-step wizard with up to 2,000 Wp of module power and country-specific feed-in limits (e.g. 800 W in Germany)

WHAT YOU GET

• Yield forecast per month and year (kWh)
• Payback calculation
• CO₂ savings per year – based on your country's grid mix
• Graphical 2D module layout with drag & drop for obstacles – including trapezoid and triangular surfaces
• Compass and inclinometer for precise orientation
• Location via GPS or address search
• Shading per roof surface
• Nearby electrician search (in supported countries)
• Feed-in tariffs included (current status shown in the app)

BALCONY SOLAR MODE

• 1–4 modules, up to 2,000 Wp: 440 W standard, 500 W premium or custom power
• Realistic yield model for inverter overloading
• Mounting presets: clamp, tilt frame, wall, façade, already installed
• Self-consumption slider 50–100%
• Bidirectional meter & partial feed-in
• Dedicated PDF layout for balcony systems

PV WIZARD PRO (one-time purchase) Unlock advanced features:

• Place obstacles in the module layout
• Deactivate individual modules to keep areas clear
• Simulate shading per roof surface
• Battery storage simulation – rooftop: up to 100 kWh; balcony: 8 brand presets from Anker Solix, Marstek, Zendure SolarFlow + DIY
• PDF export with full details
• JSON project backup One single purchase, no subscriptions.

DATA SOURCES

• PVGIS v5.2 by the European Commission – satellite-based weather data from the last 10 years
• Offline fallback when no connection is available
• Country-specific tariffs and CO₂ factors, sources documented in the app

PRIVACY

• No sign-up required
• No ads, no tracking
• Location data is processed locally only

WHO IS IT FOR?

• Homeowners and tenants
• Tenants with a balcony
• Solar consultants and installers
• Anyone who wants to plan a solar system realistically

Note: PV Wizard does not replace professional system planning. All calculations are intended as initial guidance.