Domestic Green Deal Advice Training

Transcription

1 Domestic Green Deal Advice Training Appendix T, PAS 2030, Building Physics, Regulations and Energy Efficient Lighting

2 Appendix T, PAS 2030, and Funding Energy Efficiency Measures

3 Appendix T What Appendix T is a table of the 33 Energy efficiency measures available in RdSAP it also gives the triggers for the improvement of the measure and also the level the improvement should be made to The listed order of the measures is the order of the effectiveness of the energy efficiency on the building, and the way they would be displayed on an EPC

4 Full list of Recommendations Loft insulation Flat roof insulation Roof room insulation Cavity wall insulation Solid wall insulation External insulation with cavity wall insulation(alternative measure). Floor insulation Hot water cylinder insulation Draught proofing Low energy lights Cylinder thermostat Heating controls for wet central heating system Heating controls for warm air Programmer and roomstat System Biomass boiler Biomass room heater with boiler Biomass boiler (Alternative measure). Air or ground source heat pump (Alternative measure). Air or ground source heat pump with underfloor heating (Alternative measure). Micro-CHP (Alternative measure). Upgrade boiler, same fuel Condensing oil boiler Change heating to condensing gas condensing boiler (no fuel switch) Change heating to condensing gas condensing boiler (fuel switch) Flue gas heat recovery New or replacement storage heaters Replacement warm-air unit Solar water heating Waste water heat recovery Double glazing Secondary glazing Insulated doors Photovoltaics Wind turbine

5 PAS 2030 What Publicly Available Specification (PAS) sets out requirements for the installation of energy efficiency measures (EEM) in existing buildings. It is intended for use by any entity undertaking the installation of any products and/or systems designed to improve the energy efficiency of existing buildings, but particularly where those products and systems are to be installed within the remit of the United Kingdom Green Deal Financing Mechanism. The PAS includes requirements in respect of installation processes, process management (QA)and service provision and includes criteria relating to installation methods, equipment, tools, product or system and material suitability, the commissioning of installed measures and the training, skills and competence of the people undertaking such installation Annexes A to Z provide specific requirements (26) relating to particular energy efficiency improvement measures for application by installers undertaking Installation of those measures.

6 Pas 2030 measures A. Condensing boilers, natural gas-fired and liquefied petroleum gas-fired (domestic and non-domestic) B. Condensing boilers, oil-fired (domestic and non-domestic) C. Heating controls D. Under-floor heating E. Flue-gas recovery devices F. Gas-fired warm-air heating systems (domestic and non-domestic) G. Electric storage heaters (domestic and non-domestic) H. Cavity wall insulation I. Loft insulation J. Pitched roof insulation K. Flat roof insulation L. Internal wall insulation M. External wall insulation N. Hybrid wall insulation O. Draught proofing P. Floor insulation Q. Heating system insulation (pipes and cylinders) R. Energy efficient glazing and doors S. Lighting fittings T. Lighting controls (non-domestic) U. Ground and air source heat pumps V. Solar thermal W. Solar PV X. Biomass boilers Y. Micro-combined heat and power (CHP) Z. Micro- and small-scale wind turbine systems

7 Appendix T v PAS 2330 measures Appendix T has 33 measures and Pas 2030 has 26 measures, PAS avoids duplication of measures from appendix T, due to the document being an installers guide, therefore there is no need to instruct an installer multiple times on the correct installation of an EEM. e.g. Appendix T Biomass boiler Biomass room heater with boiler Biomass boiler (Alternative measure Pas 2030 Biomass boilers

8 Fundable measures Not all the energy efficiency measures available in appendix T are available through Green deal From the 33 measures in appendix T only the 26 in PAS are available to be funded through the Green Deal scheme. As in the EPC any income from Feed in tariffs or RHI is not taken into account when calculating the energy savings in the Green Deal assessment Eco funding will be accessed via the GDP, but the potential to access funding will be assessed by the GDA

9 Non fundable measures Under Green Deal PAS 2030 contains all measures that will eligible that will be obtainable through a Green Deal plan, any measure beyond the scope of PAS 2030 will be excluded from Green Deal funding, and as a result beyond the scope of the Green Deal Advice Report. E.g. LEL WWHRS Water turbine Both LEL and WWHRS are in Appendix T but are excluded from PAS (2030), water turbines are beyond the scope of PAS, GDAR, and potentially beyond the scope of the GDA

10 General Regulations

11 General regulations All fundable measures through Green Deal will still be subject to relevant Building regulations Planning restrictions Listed building consent Any other building compliance guide

12 General regulations Building Regulations What Building Regulations set standards for the design and construction of buildings, to ensure the safety and health for people in or about those buildings. They also include requirements to ensure that fuel and power is conserved, and facilities are provided for people, including those with disabilities to access and move around inside buildings.

13 General regulations Building Regulations the fourteen technical "Parts" of the Building Regulations' requirements are Part A (Structural safety) Part B (Fire safety) Part C (Resistance to contaminants and moisture) Part D (Toxic Substances) Part E (Resistance to sound) Part F (Ventilation) Part G (Sanitation, Hot Water Safety and Water Efficiency) Part H (Drainage and waste disposal) Part J (Heat producing appliances) Part K (Protection from falling) Part L (Conservation of fuel and power) Part M (Access to and Use of Buildings) Part N (Glazing safety) Part P (Electrical Safety)

14 General regulations Part L Part L concerns its self with the Conservation of fuel and power containing the following Approved Document L1A: New dwellings Approved Document L1B Existing dwellings Approved Document L2A: New buildings other than dwellings Approved Document L2B Existing buildings other than dwellings

15 General regulations Approved Document L1B Existing dwellings What in it Part L1B contains the required standards of controlled services and fittings and building elements in order to meet building regulations compliance concerned with Conservation of fuel and power for existing dwellings. It references other documents for example Domestic building service compliance guides containing specific content on how to comply with the regulation, available from CLG planning portal

16 General regulations Planning restrictions Planning seeks to guide the way our towns, cities and countryside develop. This includes the use of land & buildings, the appearance of buildings, landscaping considerations, highway access and the impact that the development will have on the general environment Built within the planning regulation documents are specific restriction which must be adhered to and followed when installing particular measures e.g. Solar panels (PV or solar thermal) Which are covered under Permitted development laws, but when in conservation areas permission is needed prior to the installation.

17 General regulations Listed building consent English Heritage is the Government's statutory adviser on the historic environment., there principal powers and responsibilities are set out in the National Heritage Act (1983). Listed Building Consent is administered by your local authority If the application involves a Grade I or Grade II* listed building, demolition, or is particularly complicated, the case will be forwarded to English Heritage for expert advice. This is also the case for certain categories of work to Grade II listed buildings. Listed status covers a whole building, inside and out. Common works requiring consent might include the replacement of windows or doors, knocking down internal walls, painting over brickwork or altering fireplaces Carrying out unauthorised works to a listed building is a criminal offence and individuals can be prosecuted.

18 General regulations Housing Health and Safety Rating System (HHSRS) This HHSRS does not set out minimum standards. It is concerned with avoiding or, at the very least, minimising potential hazards. The Act provides local authorities with new duties and powers to tackle poor housing conditions. The idea behind the Act is that local authorities will give priority to dealing with the greatest risks to health and safety in dwellings

19 General costs (PCDF) Measure Description Ref RdSAP Cost - Low ( ) RdSAP Cost - High ( ) RdSAP Mid Range Cost ( ) RdSAP Lifetime, (years) C n Loft insulation A Flat roof insulation A Roof room insulation A Cavity wall insulation B Hot water cylinder insulation C Draught proofing D Low energy lights E Cylinder thermostat F Heating controls for wet central heating system G Heating controls for warm air system H Upgrade boiler, same fuel I Biomass boiler J Biomass room heater with boiler K New or replacement storage heaters L Replacement warm-air unit M Solar water heating N Double glazing O Secondary glazing P Solid wall insulation Q Condensing oil boiler R Change heating to condensing gas condensing boiler (no fuel switch) S Change heating to condensing gas condensing boiler (fuel switch) T Flue gas heat recovery T Photovoltaics U Wind turbine V Floor insulation W Insulated doors X Waste water heat recovery Y

20 General Building Physics

21 General building physics Building physics is the application of the scientific principles, to the building elements and services. Building physicists (designers architects engineers) bring a fundamental understanding of physics to improving the design of building fabrics and surrounding spaces.in respect to Thermal mass Thermal comfort Efficiency and responsiveness of heating systems All three factors combined will effect the energy usage of the building.

22 General building physics Thermal mass Thermal mass is a term that describes the ability of a material to store heat; something many construction materials can do to a greater or lesser extent. But, to be useful in the built environment, they must also be able to absorb and release heat at a rate roughly in step with a building s daily heating and cooling cycle. E.g. Concrete and masonry products do this well and, being dense materials, can also store a lot of heat. Timber absorbs heat too slowly to offer much effective thermal mass, steel conducts heat too rapidly to be in synch with a building s natural heat flows over the day.

23 General building physics Thermal comfort The six factors affecting thermal comfort are both environmental and personal. These factors may be independent of each other, but together contribute to a persons thermal comfort. Environmental factors: Air temperature Radiant temperature Air velocity Humidity Personal factors: Clothing Insulation Metabolic heat

24 General building physics Efficiency and responsiveness of heating systems Efficiency - what The ability to get the maximum usable energy out of the available fuel source. For the household fuel cost has a direct impact upon the efficiency. e.g. Condensing oil boiler Condensing Gas boiler Responsiveness of heating systems How quickly the heating system response to heating demand. e.g. From a cold start how quickly will the heating system bring the building to desired temperature.

25 General building physics Efficiency and responsiveness of heating systems - Controls both the efficiency and responsiveness will also depend upon the controls use in conjunction with the heating appliance. e.g. Room thermostats TRVs Programmer Boiler energy management system

26 Energy Efficient Lighting

27 Energy efficient lighting Lighting accounts for 8% of a typical household s energy bills and cutting your lighting bill is one of the easiest ways to save energy and money in the home Advice will have to be given to the customer on there lighting If you replace a traditional light bulb with a compact fluorescent bulb of the same brightness you will typically save around 3 per year, or 55 over the life of the bulb. If you replace a 50W halogen down lighter with a 6W LED you will typically save around 4 per year, or 70 by the time you have to replace the bulb 95% of the energy used in a traditional light bulb is lost as heat. So swapping to energy saving bulbs makes a lot of sense.

28 Energy efficient lighting Controls Presence detectors to control lighting can be a way of reducing energy by way of only having the light on when needed Externally Garages Walk in wardrobes Under the stairs Basements Lofts Places that are infrequently used will benefit the most

29 Any Questions