Solar Panel Calculator for Poland
Poland has one of the EU's fastest-growing rooftop-solar markets, helped by the Mój Prąd grant. This free solar calculator estimates your system size, payback and savings in złoty using local rates and sun hours.
Calculate my solar payback in Poland →
Solar at a glance in Poland
Under net billing, sizing to your daytime use — often with a battery — gives the best return; the Mój Prąd grant lowers the up-front cost.
| Currency | Polish złoty (PLN) |
|---|---|
| Typical electricity rate | zł 1 per kWh |
| Installed cost | ≈ zł 10 per watt |
| Peak sun hours | ≈ 2.9 hours/day |
| Rooftop subsidy / credit | ≈ 20% (indicative) |
| Export / buyback | ≈ zł 0 per kWh |
Indicative 2026 starting points — every figure is editable in the calculator, and results depend on your own bill, roof and installer quotes.
A typical 5 kW system in Poland
At around zł 10 per watt, a 5 kW rooftop system costs roughly zł 50,000 and produces about 4,128 kWh in its first year at Poland's 2.9 peak sun hours a day. Your real numbers depend on your roof, shading, panel choice and how much power you use during the day — run your own figures in the calculator to see your exact payback, net savings and ROI.
How the solar calculator works
- Your setup. Poland and Polish złoty are pre-selected, with local electricity rate, install cost and sun hours filled in. Enter your monthly bill, or size the system from your appliances.
- Your roof. Search your address or tap “use my location”, then draw your roof on the satellite map — or just type its area. We check the system fits and read local sun hours from NASA data.
- Your results. Instantly see your payback period, net savings, ROI, system size, year-1 production and lifetime CO₂ offset — compare cash vs. a loan, and download a PDF report.
Common questions — solar in Poland
How many solar panels do I need in Poland?
It depends on your electricity use, roof space and local sun hours (about 2.9 peak sun hours/day here). A 5 kW system of high-wattage panels is a common starting point for a home — enter your bill or appliances and the calculator gives your exact panel count and system size.
Does Poland have net metering?
Poland moved from net metering to net billing — surplus is sold at a market-based price and later consumption is bought at retail, so self-consumption and batteries matter more. The calculator lets you set your export rate.
Are there solar subsidies or incentives in Poland?
The Mój Prąd programme offers a cash grant for residential PV (with extra for batteries and energy management). Enter the grant amount or equivalent percentage in the calculator.
How much does a solar system cost in Poland?
A typical 5 kW system is around zł 50,000 at about zł 10 per watt installed before the Mój Prąd grant. The calculator prices your own size.
Work out your system size
Not sure how big a system you need? These guides work back from your monthly usage:
500 kWh/month 1,000 kWh/month 1,500 kWh/month 2,000 kWh/month 2,500 kWh/month 3,000 kWh/month
Solar calculator by country
Pakistan India Bangladesh Nigeria South Africa Philippines Kenya United States Canada United Kingdom Germany Spain United Arab Emirates Saudi Arabia Qatar Australia Egypt Sri Lanka Indonesia Malaysia Thailand Singapore Turkey Brazil Mexico Japan China New Zealand France Italy Netherlands Ireland Switzerland Sweden Norway