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Friday, September 09th, 2011 | Author: admin

Solar Panel Outlet

i have a solar panel and want to connect it to a battery that charges via a normal 115V AC outlet?

the solar panel has two alligator clamps (like jumper cables) at the end, I guess to charge a battery.

I guess I need some device I can hook the alligator clamps to that has a 115V plug on the other end I can plug the battery charger into?

Is there more to it than that?

You need a device called an MPPT charge controller. A device that monitors the electrical characteristics of the PV module, and then regulates the output voltage to the battery bank.

MPPT = maximum power point tracking. It is a technology that adjusts the electrical load on the PV module, so that the PV module can always output all electrical energy that it generates.

You can get away with a non-MPPT charge controller, but you will waste a lot of energy. I.e. just a simple diode that regulates voltage to remain below a certain value.

You probably DON'T want the AC charge controller that comes with it. That is specially designed to handle AC signals. The native output of PV modules is a DC signal...but there is a dynamic behavior to the PV module due to varying cell temperature and varying sun irradiance as the day progresses.

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