Tuesday, December 29, 2009

Better harvest from the Solar Roof!

There is one benefit of having passed the winter solstice...  bit by bit we shall see improved average harvest from our solar roofs! (although for a couple of weeks either side, the sun's altitude only varies minutely).

My roof is performing better than predicted by the JRC solar calculator, even allowing 10% efficiency losses. The harvest is 7 percent better in Oct, 40% better in Nov and so far, 45% better in December..... (December has been sunnier than average) .
This is pretty good, especially as our winter sunrise is a full hour later than the real sunrise due to our being so close to Sharp Hill. The morning is our only chance for harvest. Air temperatures are colder than average for December, so has this been enough to improve the performance of the panels?

1 comment:

  1. This is the perfect time to be energy efficient. Fuel prices are constantly rising and global warming awareness is now being pushed by the government. We can start reducing our carbon dependency through our home. Solar panels are a great source of alternative energy. You can check solarpanelsgreendeal.co.uk to get started in reducing carbon footprint.

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