Thursday, 16 August 2012

Does Cooling Solar Panels Increase Electricity Output generated?

Last week we decided to do an experiment to see if cooling Solar Panels would increase the electricity output that they generated.

By feeding a hosepipe up to the roof on a sunny day we could use the velux window to direct the hose onto each panel in turn in order to cool them down.


Does Cooling Solar Panels Increase Electricity Output generated?
Does Cooling Solar Panels Increase Electricity Output generated?
The results were dramatic. As soon as all the panels had been sprayed the electricity generated jumped by 300W from around 2.4kW to 2.7kW. This would tie in with the fact that heat decreases the electricity that solar panels generate by around 0.5% per degree of heating.

This weekend is forecast to be over 30C so it looks like the electricity output from the panels will not reach its maximum.

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