Building Energy Ratings in Co. Sligo
21,164 certificates · median 196 kWh/m²/yr · rank 34 of 52 counties on the share rated B3 or better
Half of the dwellings rated in Co. Sligo use more than 196 kWh/m²/yr.
The national median is 178 kWh/m²/yr. 34.1% of the certificates on the 2009 scale are B3 or better; 24.0% are E, F or G.
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Ratings
2009 scale, A1 to E2 — 17,722 certificates
| Rating | Certificates | Share |
|---|---|---|
| A1 | 305 | 1.7% |
| A2 | 1,201 | 6.8% |
| A3 | 1,018 | 5.7% |
| B1 | 789 | 4.5% |
| B2 | 916 | 5.2% |
| B3 | 1,815 | 10.2% |
| C1 | 2,014 | 11.4% |
| C2 | 2,197 | 12.4% |
| C3 | 2,030 | 11.5% |
| D1 | 1,890 | 10.7% |
| D2 | 1,734 | 9.8% |
| E1 | 1,005 | 5.7% |
| E2 | 808 | 4.6% |
2026 scale, A0 to E — 1,060 certificates
| Rating | Certificates | Share |
|---|---|---|
| A0 | 71 | 6.7% |
| A | 125 | 11.8% |
| B | 366 | 34.5% |
| C | 364 | 34.3% |
| D | 83 | 7.8% |
| E | 51 | 4.8% |
F and G — the same on both scales
| Rating | Certificates | Share of all certificates |
|---|---|---|
| F | 859 | 4.1% |
| G | 1,523 | 7.2% |
⚠️ The two scales are shown apart on purpose: adding a « B » from the 2026 scale to « B1+B2+B3 » from the 2009 scale would produce a number that exists nowhere. F and G belong to both, so they are counted in neither distribution and shown on their own. How the two scales compare.
What the certificates measure
| Certificates | 21,164 |
| Median energy use | 196 kWh/m²/yr |
| Median CO₂ | 46.3 kg CO₂/m²/yr |
| Median floor area | 107 m² |
| Median wall U-value | 0.39 W/m²K |
| Median roof U-value | 0.21 W/m²K |
| Median floor U-value | 0.41 W/m²K |
| Median window U-value | 2.62 W/m²K |
| Median heating system efficiency | 90% |
| Certificates with solar PV | 287 (1.4%) |
| Median renewable energy ratio | 0.00 |
| National median energy use | 178 kWh/m²/yr |
By period of construction
| Built | Certificates | Median kWh/m²/yr | Median wall U-value |
|---|---|---|---|
| before 1900 | 659 | 375 | 1.45 |
| 1900–1944 | 2,261 | 360 | 1.41 |
| 1945–1969 | 1,473 | 298 | 1.06 |
| 1970–1979 | 1,929 | 239 | 0.57 |
| 1980–1990 | 2,255 | 215 | 0.45 |
| 1991–1999 | 2,969 | 204 | 0.53 |
| 2000–2004 | 3,404 | 191 | 0.55 |
| 2005–2009 | 4,326 | 158 | 0.37 |
| 2010–2018 | 699 | 65 | 0.21 |
| 2019 or later | 1,189 | 37 | 0.17 |
Periods with fewer than 11 certificates are not shown separately.
By dwelling type
| Type | Certificates | Median kWh/m²/yr | Median floor area (m²) |
|---|---|---|---|
| Detached house | 9,206 | — | — |
| Semi-detached house | 5,564 | — | — |
| Mid-terrace house | 1,981 | — | — |
| End of terrace house | 1,124 | — | — |
| Top-floor apartment | 963 | — | — |
| Ground-floor apartment | 926 | — | — |
| Mid-floor apartment | 785 | — | — |
| House | 337 | — | — |
| Maisonette | 239 | — | — |
| Apartment | 38 | — | — |
Main space heating fuel
| Fuel | Certificates | Share | Median kWh/m²/yr |
|---|---|---|---|
| Heating Oil | 12,743 | 60.2% | — |
| Electricity | 5,927 | 28.0% | — |
| Bulk LPG (propane or butane) | 1,016 | 4.8% | — |
| Solid Multi-Fuel | 851 | 4.0% | — |
| Manufactured Smokeless Fuel | 305 | 1.4% | — |
| Mains Gas | 155 | 0.7% | — |
| Bottled LPG | 34 | 0.2% | — |
| House Coal | 32 | 0.2% | — |
| Sod Peat | 17 | 0.1% | — |
| Wood Pellets (bulk supply for | 17 | 0.1% | — |
One certificate is one assessment of one dwelling, not one dwelling: a home rated twice appears twice. How this is counted.