Very low light levels this year!

A kilowatt hour is a unit of energy equivalent to 1000 watts being consumed (or produced!) for 1 hour.

Doesn't make any difference whether this is used to produce heat, light or mechanical energy, the appliance has still used 1 kwH.

Thanks Jay. 

Perhaps its because of the solar cycle- we're nearing the end of one, with low solar activity and it's due to increase over the next two years.
Was watching this lady talking about it on tv a couple of weeks ago, just before we had that huge coronal mass ejection that caused the big northern lights display way up Norf' last week:
http://www.mssl.ucl.ac.uk/~lmg/Welcome.html
 

Well Dr Lucie Green gave the definite impression that we were entering a new period of higher solar activity and it would be particularly noticeable in 2-3 years.... regardless of the 'start' date of the cycle.
The Carrington Event which she talked about, (yes it's an extreme example) threw out so much energy that they were able to turn off the batteries on the Telegraph system and it still worked- there was that much energy produced...
My point is, given that the solar activity of Coronal Mass Ejections in recent years are at a low point, and they clearly produce energy, then it could effect the Kwh intake of a solar panel???

I know that...   
I'm talking about the electrical current they produce.

A simple to understand article for anyone who doesn't understand what on earth we're talking about LOL
http://www.sciencedaily.com/releases/2007/05/070528155146.htm

Blimey it's all getting a bit technical, but all I can say is I'm glad I'm taking a vit D supplement