How much power solar panels produce in your municipality

Pick a municipality or county: the calculator shows yearly and monthly output, split into use on site and the grid.

PVGIS: 1050 kWh per kWp per year here

Surplus valued at

Empty: we show what you can afford

Yearly output

6,300 kWh

1,050 kWh per kWp · saves PLN 3,425 a year

Used directly and from the battery1,698 kWh
Exported to the grid4,603 kWh
Deposit (×1.23)PLN 1,569
Deposit spent on energyPLN 1,408
Overpayment refundedPLN 162
Bill before / afterPLN 4,373 / PLN 1,110
Pays back in 10 years up toPLN 34,253

Hourly model of an average day in each month; surplus priced at the last 12 months of RCEm (PSE) plus the gain from negative RCE counted as zero. An estimate, not an offer; fixed charges excluded.

How we compute it and where the data come from

Bars: monthly output, line: consumption (kWh).
MonthOutputUsed on siteTo gridFrom grid
Jan1879988240
Feb294109185201
Mar538148391192
Apr717160557168
May796178618161
Jun817179638150
Jul797181616158
Aug756173583167
Sep623148475181
Oct431133297206
Nov19610096229
Dec1478959251

A solar system in Poland produces between 925 and 1,114 kWh a year per kilowatt of capacity, with panels tilted at 35° facing south and 14% system losses. That is the result from PVGIS 5.3, the European Commission Joint Research Centre tool, which we queried separately for the centre of each of 2,077 municipalities. The municipal average is 1,060 kWh/kWp, and Warsaw has 1,050 kWh. Piechowice in the Karkonosze mountains, where the sun drops early behind the slope, produces least, and Jawor in Lower Silesia most. The gaps between months matter more than those between places: in Warsaw 1 kWp yields about 136 kWh in June and only 25 kWh in December. How much output you use on site therefore depends on the season, and in winter you draw almost all your power from the grid. The calculator works out output for the chosen municipality, size, roof side and tilt.

Checked by Radif Partners · Editorial policy · Method

Output per kWp in each month

The table shows the average output of 1 kWp in each voivodeship’s municipalities in five months. The shape of the year is similar everywhere: the four months from April to July bring about half the yearly output, while November, December and January together bring less than a tenth.

kWh per kWp, average of the voivodeship’s municipalities, PVGIS 5.3, 35° facing south.
VoivodeshipJanAprJunSepDec
dolnośląskie3612012810333
kujawsko-pomorskie2812513610524
lubelskie3311813610627
lubuskie3312113010429
łódzkie3412113510728
małopolskie4111312410236
mazowieckie3112013710425
opolskie3812013010635
podkarpackie3811412810532
podlaskie2811813710220
pomorskie2512513710121
śląskie3911512610234
świętokrzyskie3711713310531
warmińsko-mazurskie2612113610120
wielkopolskie3212413410727
zachodniopomorskie2712313410121

In Warsaw, April to July adds up to 521 kWh per kWp, and November to January to 88 kWh. Roof side and tilt change these figures, as the panel orientation page shows.

Frequently asked questions

How many kWh a year does 1 kWp of solar produce in Poland?

According to PVGIS between 925 and 1,114 kWh, 1,060 kWh on average, with a roof at 35° facing south and 14% losses. That is the 2005–2023 average: in a sunny year output can be a few per cent higher, in a cloudy one lower. Older calculators often assume a round 1,000 kWh for the whole country.

Why does PVGIS output differ from what my inverter app shows?

PVGIS gives a multi-year average, while the app shows a specific year with its weather. Add shading PVGIS does not know about, dust and snow on the panels, modules heating up in summer and the inverter curtailing power when grid voltage is high. So a single year can differ from the average by a few per cent either way.

How can I check output for the exact location of my roof?

The calculator uses the centre of the municipality, which is enough in practice, since yield changes only gently between neighbouring municipalities. For an exact point you can use the free PVGIS tool on the European Commission site: mark the house on the map and enter size, tilt and azimuth. The result also reflects the horizon, meaning hills and mountains around the house.

Related calculators and guides

Solar panels

How much power a roof gives by direction and tilt.

Solar 6 kW

Output, saving and payback of the most common home size.

Is solar worth it

When panels pay back fast, and when they never do.

Sources

Prepared by

Publisher of an independent solar and heat pump calculator for every Polish gmina, with no installer, no form and no phone call

Updated on · Editorial policy · Contact

Data 2026, updated