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

Tainan

Taiwan

228score
10

Shantou

China

227score
11

Ranchi

India

227score
12

Puning

China

227score
13

Mengzi

China

227score
14

Londrina

Brazil

227score
15

Wenshan City

China

227score
16

Ratlām

India

227score
17

Jacareí

Brazil

227score
18

Rio de Janeiro

Brazil

227score
19

Yunfu

China

227score
20

Campinas

Brazil

227score
21

Dewas

India

227score
22

Donghai

China

227score
23

Naihāti

India

227score
24

Maricá

Brazil

227score
25

Cabo San Lucas

Mexico

227score
26

Fanling

Hong Kong

227score
27

Bhopal

India

227score
28

Mazatlán

Mexico

227score
29

Kalemyo

Myanmar

227score
30

Barddhamān

India

227score
31

Gandhinagar

India

227score
32

Chāndpur

Bangladesh

227score
33

Nanning

China

227score
34

Khulna

Bangladesh

227score
35

Jamshedpur

India

227score
36

Bhātpāra

India

227score
37

São João de Meriti

Brazil

227score
38

Niterói

Brazil

227score
39

Shyamnagar

India

227score
40

Simao

China

227score
41

Sumaré

Brazil

227score
42

Cabo Frio

Brazil

227score
43

Hortolândia

Brazil

227score
44

Mango

India

227score
45

Morvi

India

227score
46

Daliang

China

227score
47

New Territories

Hong Kong

227score
48

Jamnagar

India

227score
49

Tuen Mun

Hong Kong

227score
50

Rajpur Sonarpur

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