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I have just had a call from our EPC assessor who has had notification from his accrediting body that they are unable to accept the MCS cert as proof of size of installation (in the case of EPC being done after the install because without it the house would not get a D) because it shows the declared NET capacity, not the gross capacity in kWp.
anyone else come across this?
Their explanation is that the DNC in kWp is the figure with the SAP calculation already applied and they want the gross figure because the EPC software will automatically apply SAP on top of that.
Firstly, does this mean that for a 2.45kWp installation, using 10 x 245w panels and an inverter that does not cap output below 2.45kW that I have been putting the incorrect figure (2.45kWp) in the MCS database? Should I have been putting 1.96kWp as this is 80% of the TIC?
Secondly - when are the governing bodies gonna get their flabby backsides into gear and give us a break?! :61::61:
anyone else come across this?
Their explanation is that the DNC in kWp is the figure with the SAP calculation already applied and they want the gross figure because the EPC software will automatically apply SAP on top of that.
Firstly, does this mean that for a 2.45kWp installation, using 10 x 245w panels and an inverter that does not cap output below 2.45kW that I have been putting the incorrect figure (2.45kWp) in the MCS database? Should I have been putting 1.96kWp as this is 80% of the TIC?
Secondly - when are the governing bodies gonna get their flabby backsides into gear and give us a break?! :61::61: