I have recently moved house, the problem is the garage is situated about 100 feet from the house along with the garages of my neighbors. There are several houses between ours and the garage, and there is no mains electricity over there. The previous owners actually had mains power in the garage by trailing some wires around the back of the row of houses out to the garage, but that was removed before we moved in because our electrician said it was illegal. I was wondering if it would still be possible to install an electric garage door opener. Possibly using some photovoltaic cells charging a battery which could then be used to power it, or a similar alternative. It is a single garage and we are going to replace the door shortly. I could make a choice of door to best facilitate the electric opener. I need a system with parts that are commercially available in the UK. Solar cells are widely available as systems that can be used to charge 12V lead-acid batteries. Trouble is, most garage door openers are built for mains electricity, i.e. 240V a.c. After an opening/closing, is it such a simple matter as using the solar cell to fully recharge the battery even though it has not been fully discharged? I am not really sure of the energy requirements of each opening/closing. How many could I realistically hope to get out of a single charge of whatever battery could feasibly be used for this?