I needed an EPC for my MCS installed air source heat pump.
As we all know the worse the rating the better my payment - which quite frankly is ridiculous .
Anyway he rated my new build as D.
Reasons for 'down grading it ' were ... he didn't acknowledge ( or understand maybe ) the MVHR, Tesla battery not a valid point , PV no mention.
More interesting ... because no obvious room thermostats rates it 2/5 ( no understanding of HA )
Hot water also only gets 2/5
To give some context. All my rentals are 1930 terraced houses with double glazing ( my build has triple ) and a gas boiler - yet they are all 'D'
So 'efficiency ' wise on paper my new build is no better than them.
Perhaps he did it to increase my RHI . I did ask him to down grade it before he began with his response being " I can only do what I see".
So , it's a complete mockery. In real terms I am probably a 'B' - the system is a joke