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as PDF The project aims to renovate a dwelling using the whole house approach to reduce energy demand, carbon emissions and primary energy while improving the living conditions and fuel cost for tenants/occupiers. Measures proposed will tackle energy demands, efficient building systems, renewables and occupant interaction. All of these factors can affect the energy consumption and resulting carbon emissions and therefore we propose to undertake a range of measures that tackle these contributing factors.We believe this project can act as a template for similar owned properties in the local area but also across other landlords and private dwellings in the UK. The options proposed consider what is applicable, feasible and will make substantial red...
Retrofit for the future ZA218B
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Energy and fuel use
Measured data from renewable generation is not yet available.
Fuel use
| Pre-development | Forecast | Measured | |
| Electricity use | 5410 kWh/yr | 4039 kWh/yr | 7928 kWh/yr |
|---|---|---|---|
| Natural gas use | - | - | - |
| Oil use | - | - | - |
| LPG use | - | - | - |
| Wood use | - | - | - |
| Other Fuel | - | - | - |
| Pre-development | Forecast | Measured | |
| Primary energy requirement | 180 kWh/m².yr | 134 kWh/m².yr | 263 kWh/m².yr |
|---|---|---|---|
| Annual CO₂ emissions | 42 kg CO₂/m².yr | 32 kg CO₂/m².yr | 62 kg CO₂/m².yr |
| Annual space heat demand | - | 71.5 kWh/m².yr | - |
Renewable energy
| Electricity generation | Forecast | Measured |
|---|---|---|
| Renewables Technology | - | - |
| Other Renewables Tech | - | - |
| Electricity consumed by generation | - | - |
| Primary energy requirement offset by renewable generation | 134 kWh/m².yr | 263 kWh/m².yr |
| Annual CO₂ emissions offset by renewable generation | 32 kg CO₂/m².yr | 62 kg CO₂/m².yr |
Calculation and targets
| Whole house energy calculation method | SAP |
|---|---|
| Other whole house calculation method | - |
| Energy target | Retrofit for the Future |
| Other energy targets | - |
| Forecast heating load | - |
Airtightness
| Date | Result | |
| Pre-development air permeability test | - | 27.83m³/m².hr @ 50 Pascals |
|---|---|---|
| Final air permeability test | - | 9.55m³/m².hr @ 50 Pascals |
Project description
| Stage | Under construction |
|---|---|
| Start date | 01 February 2010 |
| Occupation date | 01 April 2010 |
| Location | Edinburgh Lothian Scotland |
| Build type | Refurbishment |
| Building sector | Public Residential |
| Property type | Semi-Detached |
| Construction type | Masonry Cavity |
| Other construction type | |
| Party wall construction | Unknown |
| Floor area | 75.3 m² |
| Floor area calculation method | Treated Floor Area (PHPP) |
| Building certification |
Project Team
| Organisation | Castle Rock Edinvar Housing Association |
|---|---|
| Project lead person | Liz Peacock |
| Landlord or Client | Castle Rock Edinvar Housing Association |
| Architect | n/a |
| Mechanical & electrical consultant | Daniel Mill, Camco Advisory Services |
| Energy consultant | Daniel Mill, Camco Advisory Services |
| Structural engineer | n/a |
| Quantity surveyor | n/a |
| Consultant | |
| Contractor | Alan Taylor, T.B.Mackay |
Design strategies
| Planned occupancy | The occupant will be decanted during the works, expected to be four weeks starting February, depending on product delivery times. |
|---|---|
| Space heating strategy | Air source heat pump, distributed via retro-fit underfloor pipework. |
| Water heating strategy | Thermal combined storage cylinder supplied from Latent air source heat pump utilising roof space heat and solar thermal array. |
| Fuel strategy | New 7-hour economy electricity tariff |
| Renewable energy strategy | Solar thermal array for domestic hot water |
| Passive Solar strategy | n/a |
| Space cooling strategy | n/a |
| Daylighting strategy | As existing |
| Ventilation strategy | New MVHR |
| Airtightness strategy | All penetrations to be filled, combined with new MVHR system |
| Strategy for minimising thermal bridges | |
| Modelling strategy | SAP 2005 used, with additions |
| Insulation strategy | New floor insulation as part of underfloor heating. Check and ensure roof insulation is 270 mm. |
| Other relevant retrofit strategies | Low flow water fittings, |
| Contextual information |
Building services
| Occupancy | NULL |
|---|---|
| Space heating | NULL |
| Hot water | NULL |
| Ventilation | NULL |
| Controls | NULL |
| Cooking | NULL |
| Lighting | NULL |
| Appliances | NULL |
| Renewable energy generation system | NULL |
| Strategy for minimising thermal bridges | NULL |
Building construction
| Storeys | |
|---|---|
| Volume | - |
| Thermal fabric area | - |
| Roof description | NULL |
| Roof U-value | 0.00 W/m² K |
| Walls description | NULL |
| Walls U-value | 0.00 W/m² K |
| Party walls description | NULL |
| Party walls U-value | 0.00 W/m² K |
| Floor description | NULL |
| Floor U-value | 0.00 W/m² K |
| Glazed doors description | NULL |
| Glazed doors U-value | 0.00 W/m² K - |
| Opaque doors description | NULL |
| Opaque doors U-value | 0.00 W/m² K - |
| Windows description | NULL |
| Windows U-value | 0.00 W/m² K - |
| Windows energy transmittance (G-value) | - |
| Windows light transmittance | - |
| Rooflights description | NULL |
| Rooflights light transmittance | - |
| Rooflights U-value | 0.00 W/m² K |