The installation was quick without scaffolding being constructed before the mounting of the solar panel. At the moment zero energy has being generated which may be due to lack of sunshine. Not sure of the quality of the solar panel. For the size of the property will definitely need 10-12 panels to generate enough for the size of the house. Am happy to improve the rating as soon as I could see energy generated on the alp installed on my phone but for now zero energy is being generated Since no scaffolding was not used during solar panel installation then the total bill should be reduced to remove the cost of scaffolding that was not used. Am concerned about the quality of the solar panel because it looks different from those installed on the roof of my next door neighbour. The electrician did a clean job but am just concern about the quality of the panels installed.