Forum Discussion

atperci's avatar
atperci
Explorer
Jun 15, 2015

Is it possible to add switch for an additional solar panel?

I installed 2 - 111 watt MiaSole thin film panels on our MH last year. These are 12v nominal panels that output 19.4v and 5.7a at STC . I bought them a couple of years ago for $0.45/watt. They work g...
Chandalen's avatar
Chandalen
Explorer
Jun 15, 2015
Unless you have an MPPT controller, your excess voltage (over 19v) is useless. You could run thinner wires as the voltage loss is not a factor. Make sure your controller can handle the voltage supplied. Some PWM can not.

You can easily use a switch to turn panels on and off if you desire.

I'm not seeing over 22 amps if they are all connected and at full power.. 5.7x2 and 5.24x2. Did I miss some math?

Renogy has 19.5v 100w 5.27 amp panels for $135 ea if that helps.

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