The process for inputting solar PV into the iQ-Energy software has recently changed, so EAs will need to sure that they have the correct boxes checked to have the PV correctly entered. If you have a previous DRAFT of an EPC, this will be affected.
When you first enter the PV in the 'General' tab of iQ-Energy, you must make sure that the tick-box confirming that the PV panels are connected is ticked.
IMPROVEMENT MEASURES TAB:
On the final page, you would need to ensure that Addendum 8 is also ticked to ensure the correct calculation.
If you have previously LODGED an EPC, there may be a variance to what iQ-Energy is saying and the original EPC. Please double-check the RRN against the EPC Register (epcregister.com) to see what has been lodged.