How to Determine Watt Output of Solar Panel

Updated 04/30/2019 | Published 04/27/2019

Question:

Hi I have three solar pannel on the trailer which create about 21V-24V I need to get an electrician to figure out how it is connected. A friend wanted to connect his trailer which is bigger and nicer, I said I only had 23V, he said he has 2295 watts and it shall be ok. Right now I am not getting electricity not more so I have to get an electrician anyway to check my setup. My questions is: will 23V support 2295watts? If yes, Great!, If not, how many 24V will I need? I hope it makes senses. Thanks.

asked by: Willie

Expert Reply:

Calculating available power from a solar panel setup includes the watt, volt and amp figures because there is a fixed relationship between them. Watts = volts x amps. 2295 watts = 12V x 191-amps. This means your 12V solar setup would have to output 191 amps in order to support a power demand of 2295 watts.

As an example, our Go Power Solar AE-6 solar system # 342-75011 is rated 1140-watts. At 12V this means it can provide a maximum current of 95-amps.

I linked a series of our helpful articles that cover the topic of solar power and these may be useful to you.

expert reply by: Adam R