Energy class in Ireland (BER)
Official certificate: BER
Ireland uses the BER certificate to classify the energy performance of buildings.
The scale is absolute: thresholds are expressed in kWh/m²·yr.
Official BER scale
| Class | Max energy (kWh/m²·yr) |
|---|---|
| A1 | ≤ 25 |
| A2 | ≤ 50 |
| A3 | ≤ 75 |
| B1 | ≤ 100 |
| B2 | ≤ 125 |
| B3 | ≤ 150 |
| C1 | ≤ 175 |
| C2 | ≤ 200 |
| C3 | ≤ 225 |
| D1 | ≤ 260 |
| D2 | ≤ 300 |
| E1 | ≤ 340 |
| E2 | ≤ 380 |
| F | ≤ 450 |
| G | > 450 |
How the estimate works in Ireland
In Ireland, the BER class is based on absolute primary energy consumption (kWh/m²·yr). EnergyClass calculates the building's estimated energy need and compares it to official thresholds to assign the class.
Data available for 956 local climate zones in Ireland.
Energy classes in other countries
Each country has its own scale and certificate: here is the page for each one.