Solar 101

System Sizing Tool
Steps to Solar
Determine your monthly usage from your bill.This is measured in kWh per month.

Steps to Solar
Find Your Sun Hours.


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Steps to Solar
Enter your information in the fields below.

 

Monthly electrical use
(average the kWH on your bill)
Monthly electric usage explanation kwh per month

 
  Monthly electrical bill
(average of your monthly bills)
$

 
  Percentage of your usage you want to cover with solar power* Monthly electric bill %

 
  Average peak sun hours for your location
(avg 6 in Sun Belt, 4in NE / NW)*Monthly electric bill sun hours
 
   



 

Manual System Sizing Tool
Using the amount monthly kWhs from your utility bill, and the amount of sun hours your location receives, you can find the size of your system, in DC watts, needed to cover 100% of your usage.


< 3.0
3.5
4.0
4.5
5.0
5.5
6.0
6.5
50 kWh
0.7kw
0.6kw
0.5kw
0.5kw
0.4kw
0.4kw
0.3kw
0. kw
100 kWh
1.4kw
1.2kw
1.0kw
0.9kw
0.8kw
0.8kw
0.7kw
0.6kw
150 kWh
2.0kw
1.7kw
1.5kw
1.4kw
1.2kw
1.2kw
1.0kw
0.9kw
200 kWh
2.7kw
2.3 kw
2.0kw
1.8kw
1.6kw
1.6kw
1.4kw
1.2kw
250 kWh
3.4kw
2.9kw
2.5kw
2.3kw
2.0kw
2.0kw
1.7kw
1.6kw
300 kWh
4.1kw
3.5kw
3.0kw
2.7kw
2.4kw
2.4kw
2.0kw
1.9kw
350 kWh
4.7kw
4.1kw
3.5kw
3.2kw
2.8kw
2.8kw
2.4kw
2.2kw
400 kWh
5.4kw
4.6kw
4.1kw
3.6kw
3.2kw
3.2kw
2.7kw
2.5kw
450 kWh
6.1kw
5.2kw
4.6kw
4.1kw
3.6kw
3.6kw
2.8kw
500 kWh
6.8kw
5.8kw
5.1kw
4.5kw
4.1kw
4.1kw
3.4kw
3.1kw
550 kWh
7.4kw
6.4kw
5.6kw
5.0kw
4.5kw
4.5kw
3.4kw
600 kWh
8.1kw
6.9kw
6.1kw
5.4kw
4.9kw
4.9kw
4.1kw
3.7kw
650 kWh
8.8kw
7.5kw
6.6kw
5.9kw
5.3kw
5.3kw
4.4kw
4.1kw
700 kWh
9.5kw
8.1kw
7.1kw
6.3kw
5.7kw
5.7kw
4.7kw
4.4kw
750 kWh
8.7kw
7.6kw
6.8kw
6.1kw
6.1kw
5.1kw
4.7kw
800 kWh
9.3kw
8.1kw
7.2kw
6.5kw
6.5kw
5.4kw
5.0kw
850 kWh
11.5kw
9.8kw
8.6kw
7.7kw
6.9kw
6.9kw
5.7kw
5.3kw
900 kWh
12.2kw
9.1kw
8.1kw
7.3kw
7.3kw
6.1kw
5.6kw
950 kWh
12.8kw
11.0kw
9.6kw
8.6kw
7.7kw
7.7kw
6.4kw
5.9kw
1000 kWh
13.5kw
11.6kw
9.0kw
8.1kw
8.1kw
6.8kw
6.2kw
1050 kWh
14.2kw
12.2kw
9.5kw
8.5kw
7.1kw
6.5kw
1100 kWh
14.9kw
12.7kw
11.1kw
9.9kw
8.9kw
8.9kw
7.4kw
6.9kw
1150 kWh
15.5kw
13.3kw
11.6kw
9.3kw
9.3kw
7.8kw
7.2kw
1200 kWh
16.2kw
13.9kw
12.2kw
9.7kw
9.7kw
8.1kw
7.5kw
1250 kWh
16.9kw
14.5kw
12.7kw
11.3kw
8.4kw
7.8kw
1300 kWh
17.6kw
15.0kw
13.2kw
11.7kw
8.8kw
8.1kw
1350 kWh
18.2kw
15.6kw
13.7kw
12.2kw
10.9 kw
10.9kw
9.1kw
8.4kw
1400 kWh
18.9kw
16.2kw
14.2kw
12.6kw
11.3kw
11.3kw
9.5kw
8.7kw
1450 kWh
19.6kw
16.8kw
14. kw
13.1kw
11.7kw
11.7kw
9.8kw
9.0kw
1500 kWh
20.3kw
17.4kw
15.2kw
13.5kw
12.2kw
12.2kw
9.3kw
1550 kWh
20.9kw
17.9kw
15.7kw
14.0kw
12.6kw
12.6kw
9.7kw




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