Retrofit for the future
Energy performance targets for the retrofit for the future programme were based on an 80% reduction in CO₂ from an average 1990 baseline for a typical 80m² semi-detached house of 97 kg CO₂/m².yr
- CO₂ Target : 17 kg/m².yr (if modelled in SAP) and 20 kg/m².yr (if modeled in PHPP * )
- Primary Energy Target: 115 kWh/m².yr
- Space Heating: No specific target was set but if the above targets are met, space heating requirements should necessarily be low (i.e. around 40kWh/m².yr)
AECB Silver
70% reduction in primary energy and CO₂ emissions compared to average UK building of that type. As applied to a typical dwelling
- Useful space heating energy: 40 kWh/m².yr
- Primary energy consumption: 120 kWh/m².yr
- CO₂ emissions: 22 kg/m².yr
AECB Gold
85% and 95% reductions in primary energy and CO₂ emissions compared to average UK building of that type.As applied to a typical dwelling
- Useful space heating energy: 15 kWh/m².yr
- Primary energy consumption: 58 kWh/m².yr
- CO₂ emissions: 4 kg/m².yr
Passivhaus
- Space Heat Demand: 15 kWh/m². yr
- Heating Load: 10 W/m²
- Pressurisation test result: < 0.6 /hr @ 50Pa
- Primary energy target for Passivhaus is: 120 kWh/m².yr
Primary energy target for Passivhaus in a UK context is: 78 kWh/m².yr
Enerphit
- Primary Energy: <120 kWh/m2.yr + ((Space Heat demand-15kWh/m2/yr)*1.2)
- Space Heat Demand: < 25kWh/m2/yr OR meeting criteria for individual components.
- Pressurisation Test Result: <1.0 / hr @ 50 Pa