09/06/2026
The BER scale changed last month. If you're wondering what it means for you, here's the short version.
The sub-bands you knew - A1, A2, B1, B2, B3 - are gone. The new scale is A0 to G. A0 is brand new: the top tier for homes that have moved off fossil fuels entirely.
We've pulled together a guide covering what changed, what's on your new cert, and the grant rules - including the 5-year BER rule that catches a lot of homeowners off guard.
The New Building Energy Rating (BER) scale is now in effect in Ireland. Find out what A0 means, what's on your new cert, and the 5-year grant rule