Solar Ranking

Best Cities for Solar Panels

Cities ranked by solar energy potential, combining clear days with optimal sun angles. These locations offer the best conditions for solar panel efficiency and energy production.

#1 Guarulhos
Best solar potential worldwide

How We Calculate Solar Potential

Our solar score combines two key factors: annual clear days (more sunshine = more energy) and maximum sun altitude (higher sun angle = more direct rays on panels). Cities near the equator with clear skies score highest.

Clear Days
Days with significant sunshine
Sun Altitude
How high the sun gets at noon
Solar Score
Combined potential rating
228
Highest solar score
Guarulhos
253
Clear days (#1 city)
90°
Max sun altitude (#1)

Solar Potential Rankings

Sorted by combined solar score (highest to lowest)

1

Guarulhos

Excellent

Brazil

228score
2

Comilla

Excellent

Bangladesh

228score
3

Wuzhou

Excellent

China

228score
4

Itaquaquecetuba

Brazil

228score
5

Maringá

Brazil

228score
6

Chiayi City

Taiwan

228score
7

Brasilandia

Brazil

228score
8

Jaraguá

Brazil

228score
9

Anbu

China

228score
10

Santana de Parnaíba

Brazil

228score
11

Chenghua

China

228score
12

Krishnanagar

India

228score
13

Cachoeirinha

Brazil

228score
14

Hepo

China

228score
15

Jardim Helena

Brazil

228score
16

Rustaq

Oman

228score
17

Arapongas

Brazil

228score
18

Sarandi

Brazil

228score
19

Navadwīp

India

228score
20

Mandaqui

Brazil

228score
21

Nagda

India

228score
22

Tainan

Taiwan

228score
23

Pingshan

China

228score
24

Shantou

China

227score
25

Ranchi

India

227score
26

Puning

China

227score
27

Mengzi

China

227score
28

Londrina

Brazil

227score
29

Wenshan City

China

227score
30

Ratlām

India

227score
31

Jacareí

Brazil

227score
32

Pirituba

Brazil

227score
33

Toliara

Madagascar

227score
34

Licheng

China

227score
35

Franco da Rocha

Brazil

227score
36

Cangaiba

Brazil

227score
37

Freguesia do Ó

Brazil

227score
38

Gejiu

China

227score
39

Tatuí

Brazil

227score
40

Puruliya

India

227score
41

Bairro da Penha

Brazil

227score
42

Santana

Brazil

227score
43

Vila Medeiros

Brazil

227score
44

Ermelino Matarazzo

Brazil

227score
45

Caieiras

Brazil

227score
46

Mairiporã

Brazil

227score
47

Rio de Janeiro

Brazil

227score
48

Yunfu

China

227score
49

Campinas

Brazil

227score
50

Dewas

India

227score

Sunniest Cities

Cities with the most clear days per year.

View rankings

Shortest Shadows

Cities where the sun reaches closest to overhead.

View rankings