Poland: solar plant site data

Solar power in Poland: yield in 87 cities

PVGIS data for 87 main cities: from 1,006 kWh/kWp (Piła) to 1,107 (Swidnica), median 1,065; median optimal tilt 39°. The median is 4.4% lower than Kyiv’s (1,114).

Median, 1 kWp: 1,065kWh/year
Range: 1,006–1,107kWh/year
Optimal tilt: 39°median
Cities: 87with PVGIS data

Ground frame designer

A ground frame for a solar plant in Poland

Latitude 52.2°: the tilt and the row pitch follow it. Enter the snow and wind for Poland in the designer, by the national annex to the Eurocode.

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Regions

Region	Cities	Median, kWh/kWp	Range
Lower Silesian Voivodeship	7	1,096	1,043–1,107
Opole Voivodeship	2	1,087	1,080–1,095
Subcarpathian Voivodeship	5	1,086	1,065–1,096
Lublin Voivodeship	4	1,084	1,057–1,093
Lesser Poland Voivodeship	3	1,081	1,062–1,085
Greater Poland Voivodeship	7	1,075	1,006–1,088
Świętokrzyskie Voivodeship	3	1,069	1,069–1,087
Silesian Voivodeship	23	1,069	1,051–1,092
Łódź Voivodeship	6	1,059	1,058–1,069
Masovian Voivodeship	7	1,057	1,033–1,080
Lubusz Voivodeship	2	1,050	1,045–1,054
Pomeranian Voivodeship	4	1,043	1,014–1,067
Kuyavian-Pomeranian Voivodeship	5	1,042	1,025–1,066
West Pomeranian Voivodeship	3	1,019	1,007–1,044
Podlaskie Voivodeship	3	1,018	1,017–1,042
Warmian-Masurian Voivodeship	3	1,012	1,012–1,033

Cities by yield

Main cities in Poland: yearly yield of 1 kWp and optimal tilt
Rank	City	kWh/kWp	Tilt
1	Swidnica	1,107	40°
2	Legnica	1,107	40°
3	Głogów	1,098	40°
4	Tarnobrzeg	1,096	39°
5	Wroclaw	1,096	40°
6	Opole	1,095	40°
7	Zamość	1,093	38°
8	Racibórz	1,092	39°
9	Przemyśl	1,088	38°
10	Ostrów Wielkopolski	1,088	40°
11	Chełm	1,087	38°
12	Ostrowiec Świętokrzyski	1,087	39°
13	Lubin	1,086	41°
14	Mielec	1,086	39°
15	Kalisz	1,085	40°
16	Krakow	1,085	39°
17	Gliwice	1,082	39°
18	Tarnów	1,081	39°
19	Lublin	1,080	39°
20	Radom	1,080	39°
21	Kędzierzyn-Koźle	1,080	39°
22	Rzeszów	1,078	39°
23	Żory	1,078	39°
24	Siemianowice Śląskie	1,077	39°
25	Chorzów	1,076	39°
25	Piekary Śląskie	1,076	39°
27	Gniezno	1,075	40°
28	Leszno	1,075	40°
29	Rybnik	1,074	39°
30	Jastrzębie Zdrój	1,074	39°
31	Bytom	1,073	39°
32	Zabrze	1,072	39°
33	Starachowice	1,069	39°
34	Tychy	1,069	39°
35	Kielce	1,069	39°
36	Ruda Śląska	1,069	39°
36	Piotrkow Trybunalski	1,069	39°
38	Świętochłowice	1,068	39°
39	Tarnowskie Góry	1,068	39°
40	Częstochowa	1,067	39°
41	Gdansk	1,067	41°
42	Będzin	1,067	39°
43	Inowrocław	1,066	40°
44	Stalowa Wola	1,065	39°
45	Katowice	1,065	39°
46	Sosnowiec	1,063	39°
47	Konin	1,062	40°
48	Nowy Sącz	1,062	40°
49	Lodz	1,062	39°
50	Mysłowice	1,061	39°
51	Pruszków	1,060	39°
52	Pabianice	1,059	39°
53	Tomaszów Mazowiecki	1,059	39°
54	Poznan	1,059	40°
54	Bełchatów	1,059	39°
56	Tczew	1,059	41°
57	Dąbrowa Górnicza	1,058	39°
57	Zgierz	1,058	39°
59	Jelenia Góra	1,058	40°
60	Siedlce	1,058	39°
61	Biała Podlaska	1,057	39°
62	Płock	1,057	40°
63	Jaworzno	1,056	39°
64	Grudziądz	1,055	40°
65	Zielona Góra	1,054	40°
66	Bielsko-Biala	1,054	39°
67	Warsaw	1,053	39°
68	Zawiercie	1,051	39°
69	Gorzów Wielkopolski	1,045	40°
70	Stargard	1,044	40°
71	Wałbrzych	1,043	39°
72	Torun	1,042	40°
73	Łomża	1,042	39°
74	Włocławek	1,040	39°
75	Legionowo	1,035	39°
76	Ostrołęka	1,033	39°
77	Elblag	1,033	40°
78	Gdynia	1,026	41°
79	Bydgoszcz	1,025	40°
80	Koszalin	1,019	40°
81	Suwałki	1,018	40°
82	Bialystok	1,017	39°
83	Słupsk	1,014	40°
84	Olsztyn	1,012	40°
85	Ełk	1,012	39°
86	Szczecin	1,007	40°
87	Piła	1,006	40°

Snow and wind loads

Snow and wind loads for a site in Poland follow PN-EN 1991-1-3 (snow) and PN-EN 1991-1-4 (wind) with the Polish National Annex (NA). Solispec computes loads by the Ukrainian DBN V.1.2-2 only, so this page shows no snow or wind values for Poland: enter the characteristic values from these documents in the designer’s «Own snow S0» and «Own wind W0» fields.

The frame calculation for such a site is preliminary: before installation it must be checked by an engineer who works to the country’s standards.

How these numbers are obtained

Yields are PVGIS 5.3 (SARAH3 database) of the EU Joint Research Centre: 1 kWp of crystalline panels on a free-standing frame, 14% losses, the tilt and azimuth with the highest yearly yield, for the city’s coordinates. The row pitch is for a table of two portrait panels at the optimal tilt, free of shade from 10:00 to 14:00 solar time on 21 December — the designer computes it the same way. Cities come from GeoNames: every one with at least 50,000 people and every regional capital. Snow and wind are not shown on these pages: they follow the national annex to the Eurocode.

Europe: Poland, Germany, Spain

Yield, tilt and row spacing for the main cities, from PVGIS.

Sources

GeoNames (CC BY 4.0) — coordinates, elevation, population and divisions (changed)
Where to take snow and wind loads from: PN-EN 1991-1-3 + NA, PN-EN 1991-1-4 + NA
How these numbers are computed

Preliminary calculation: a design needs an engineer’s check.