Eco-Worthy 12v solar panels, Now drifting to... mono vs poly
When I search here, the only Ecoworthy results I get are for their controllers. Does anyone have any experience with their 12v panels?
Forum Discussion
BFL13 wrote:
My 130w was about 20.3Voc in the sun in the summer (rated 21.9) That 42-45 limit on the Eco-W is very awkward!
Ambient temperature does have a effect on the panel but it isn't going to stay cold long. On a normal cold day the panel is slowly exposed as the sun rises. It will be putting out lower levels of power and Voc until fully exposed to the sun. Those lower levels still produce heat so by the time the panel could get above its Voc, it is already too warm to do so.
My 220w mono did jump above it's rating a lot when suddenly exposed to bright sun in freezing temps. Even then the really high numbers didn't last long once the panel had a chance to start working and then warming up.
So maybe on a cold cloudy day and the sun suddenly pops out.....
