We had a great experience with EPC. They were courteous and helpful throughout, talking us through the various changes and application processes along the way. We installed in 2 phases - 3.7kW initially (18 panels) and another 3.7kW a year later, and after some hunting they were able to source some almost identical panels to match the 2 sets up, despite the technology moving on significantly the meantime. The end result is a 7.4kW system which has generated ~10MWhr per annum for the last couple of years. We use a little over 50% ourselves and export the balance, but now we have one (possibly 2 electric cars) we will use more and more, and may consider a battery system to smooth out the flow. EPC installed a SolarEdge diverter to heat our water too. Our energy consumption is half of what is used to be!! The SolarEdge technology recommended by EPC has been excellent - reliable and the app access is great to see what's going on.