My PV panels were completed late afternoon on 29th May 2012 to date 8th June 2012 they have generated 106 kwh, which considering the recent weather i think is quite good.
The company i used are H2Eco of Poole Dorset. I would recommend them to anyone interested any type of renewables.
I used Solar Panel Quoter to provide me with local recommended installers, from them i found my installer who after a survey visit and quote for the installation invited me to their factory unit to view the products. This was visit convinced me that this co would carry out a good installation, which proved to be so.