Solar PV or RHI installation?
Energy Performance Certificates (EPCs) say how energy efficient your home is. EPC’s also help to show how to make your home more energy efficient and reduce your energy costs, such as by insulating them better or by fitting solar panels, whether solar PV or solar solar thermal.
All homes that are bought, sold or rented in UK require an EPC.
Solar PV installations also need an EPC showing a level D or higher.