Solar panel question

[svfinlandia]

Here's one for you solar experts:

1. Will it cause any damage to a panel to momentarily short its output?

2. Will it cause any damage to a panel to leave it open circuit (no connection) for a period of time.

Both questions assume panel is in bright sunlight.

Thanks for the input in advance.

Al, S/V Finlandia

[senormechanico]

1. No.

2. No, but it would be better to leave them in open circuit for long term as there would be less heating going on.

You're welcome.

[Hartleyg]

Concur - 'no' to both questions, open creates a bit less heat. Do keep in mind that the panel WILL get quite hot in full sun whether open circuited, shorted or working into a battery - not a problem, just something to keep in mind..

Hartley

[socaldmax]

Concur with both posts above.


On a personal level, I prefer not to short out any source of power, even though solar panels are the exception, I still can't bring myself to do it.

[senormechanico]

Originally Posted by socaldmax

Concur with both posts above.


On a personal level, I prefer not to short out any source of power, even though solar panels are the exception, I still can't bring myself to do it.

Start small.
Try shorting out a solar panel in the dark, then work up to moonlight, then....

[hellosailor]

If you are going to leave solar panels unused for a length of time, leave the leads disconnected, but more importantly, cover the panels. A piece of heavy aluminum foil would reflect heat & light. A towel or piece of foam mat with something opaque over it would be a little better.


But it is pretty hard to insult a solar panel by just ignoring it.

[svfinlandia]

Gang:

Thanks for all of the replies. Your answers were exactly what I expected, but it is nice to get my thoughts confirmed.

Al, S/V Finlandia

[socaldmax]

Originally Posted by senormechanico

Start small.
Try shorting out a solar panel in the dark, then work up to moonlight, then....

Good idea!