I want to buy some small solar panels to mount in the back yard to lower electricity bills.
I had a look online and there seem to be some cheap one's around for even just over a hundred pounds each.
I don't know anything about solar panels beyond the little I have read on how the silicon atoms in them work. I would really like to know how I could connect them up to my house without it involving any major stress (my place is rented so I don't want to do anything that could damage walls for instance), I would also like to know any information on how I would go about doing this.
Do I call my electricity supplier?
Are cheaper solar panels still efficient?
Any info appreciated!