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Domestic GDA Training – 4. RdSAP & the Green Deal1Training Material © Stroma Certification 2013 | Version 1.3 ABBE Level 3 Diploma in Domestic Green Deal Advice 4. RdSAP & the Green Deal What are EPCs and What is RdSAP? Changes to RdSAP 9.91 Green Deal Measures and PAS 2030 Golden Rule & Typical Repayments Presented by
Domestic GDA Training – 4. RdSAP & the Green Deal2Training Material © Stroma Certification 2013 | Version 1.3 What are EPCs? What is RdSAP?
Domestic GDA Training – 4. RdSAP & the Green Deal3Training Material © Stroma Certification 2013 | Version 1.3 Energy Performance Certificates (EPCs) EPCs: Used to assess the energy performance of buildings. Were introduced in England and Wales on 1 st August 2007 as part of Home Information Packs (HIPs). When the requirement for HIPs was removed in May 2010, the requirement for EPCs continued. A certificate is valid for 10 years and is required on a new tenancy, sale or rental. Currently the Green Deal measures are only valid for 3 years. There is no validity time limit on the Occupancy Assessment once lodged. The OA must be lodged within 14 days
Domestic GDA Training – 4. RdSAP & the Green Deal4Training Material © Stroma Certification 2013 | Version 1.3 Role of the EPC EPC is required by law when a building is built, sold or put up for rent. Any landlord or homeowner who needs to provide an EPC will need to contact an accredited domestic energy assessor. They will carry out the assessment and produce the certificate. It is the benchmark of the propertys energy efficiency. The EPC generates the measures that the GDA will attempt to fit into the Golden Rule framework after the Occupancy Assessment.
Domestic GDA Training – 4. RdSAP & the Green Deal5Training Material © Stroma Certification 2013 | Version 1.3 What is RdSAP? Reduced Data Standard Assessment Procedure (RdSAP) has been developed by the Government for use in existing dwellings, based on a site survey of the property. RdSAP consists of a system of data collection together with defaults and inference procedures, which generate a complete set of input data for the SAP calculation. Stroma has created an integrated RdSAP, Green Deal software solution for EPC and Occupancy assessment
Domestic GDA Training – 4. RdSAP & the Green Deal6Training Material © Stroma Certification 2013 | Version 1.3 RdSAP Considerations Property age/detachment, any extensions present Habitable room count Dimensions (areas and heat loss perimeters) Conservatory Wall construction (plus any insulation) Floor construction (plus any insulation) Floor exposure Alternative wall (plus any insulation) Roof construction (plus any insulation) Roof room construction (plus any insulation) Windows (glazing type, percentage glazed, area) Fireplace count Terrain type Low energy lights PV (could include orientation, pitch etc.) Space cooling Mechanical ventilation Wind turbines Main heating system 2nd Main heating system (optional) Heating controls Secondary heating Hot water heating Gas and electric meters
Domestic GDA Training – 4. RdSAP & the Green Deal7Training Material © Stroma Certification 2013 | Version 1.3 RdSAP Assumptions The EPC is designed so an EPC for one property can be a compared with another. Different people use their house and its contents in different ways. EPCs are therefore not specific to the occupants, but to the dwelling itself. Assumptions are made by RdSAP so household behaviour does not impact on the EPC rating: Standard occupancy – the actual number of occupants is not accounted for. RdSAP assumes occupancy based on the floor area. This information is then used to determine factors like domestic hot water requirement. Standard heating pattern – some people have their heating set to 25 oc all day every day, some people have their heating on for half an hour a day. To avoid this type of behaviour skewing EPC data, a standard heating pattern is used as follows: 9 hours heating a day during the week. 16 hours a day at the weekend. The living area is heated to 21 o c and the rest of the house to 18 o c. RdSAP does not account for energy use by electrical appliances and non-fitted lighting. It is assumed these will not be left at the property by the current owner/occupier.
Domestic GDA Training – 4. RdSAP & the Green Deal8Training Material © Stroma Certification 2013 | Version 1.3 Differences between SAP and RdSAP SAP Used for new dwellings. Used for buildings which have undergone a change of use. Report produced off plan. Property is not visited. Uses a more comprehensive methodology. Assessor must hold Dip OCDEA qualification. Report based on U-values. Uses SAP software. RdSAP Used for existing dwellings. Assessment conducted at the dwelling. Uses a reduced methodology taken from SAP. Assessor must hold DipDEA qualification. Report based on assumptions. Uses RdSAP Software.
Domestic GDA Training – 4. RdSAP & the Green Deal9Training Material © Stroma Certification 2013 | Version 1.3 RdSAP Interface
Domestic GDA Training – 4. RdSAP & the Green Deal10Training Material © Stroma Certification 2013 | Version 1.3 Product Characteristic Data File (PCDF) RdSAP draws information from databases within the PCDF. Databases are regularly maintained for DEAs to: Locate appropriately calculated seasonal efficiencies and characteristics for heating and related products. Reduce the risk of miscalculation and confusion with data. The PCDF stores data in separate tables per product, specific fields aid product identification for the technical data relevant to SAP calculations for: (i) boilers, fired by gas, LPG or oil. (ii) solid fuel boilers, fired by a variety of solid fuels. (iii) cooker boilers with twin burners, fired by gas, LPG or oil. (iv) micro-cogen (also known as micro-CHP), fired by gas, LPG, oil or solid fuel. (v) flue gas heat recovery systems (FGHRS). (vi) mechanical ventilation systems. (vii) waste water heat recovery systems (WWHRS). (viii) heat pumps.
Domestic GDA Training – 4. RdSAP & the Green Deal11Training Material © Stroma Certification 2013 | Version 1.3 Changes to RdSAP 9.91
Domestic GDA Training – 4. RdSAP & the Green Deal12Training Material © Stroma Certification 2013 | Version 1.3 New Data Entry Draught proofing Wall thickness measurements External door count/insulated door count Number of rooms with bath and/or shower (for waste water heat recovery) Internal dry lining (yes or no option) Solar water heating - now giving the option to enter details such as the heat loss coefficient and aperture Photovoltaics - now has the provision for three separate PV systems Partially Insulated roof rooms - software now accommodates gable and stud walls, as well as flat ceilings and sloping parts Areas and U-values can now be specified Window data extended - orientation, U and g-values taken into account 2 wind turbines can now be considered Flue gas heat recovery - software contains a new database to provide this data Waste water heat recovery – software contains a new database to provide this data
Domestic GDA Training – 4. RdSAP & the Green Deal13Training Material © Stroma Certification 2013 | Version 1.3 New EPC (includes Data Entry) Green Deal is now the main focus on the first page of the new EPC.
Domestic GDA Training – 4. RdSAP & the Green Deal14Training Material © Stroma Certification 2013 | Version 1.3 Changes Previous EPC Recommendations were separated into lower and higher cost measures. In this format, there is no correlation between the measure and its relevance to the home owner. New Green Deal EPC The RdSAP 9.91 software shall calculate improvement measures in the order they should be considered. The rating after improvement is a cumulative rating. The calculation will also determine if the measure is eligible for Green Deal finance.
Domestic GDA Training – 4. RdSAP & the Green Deal15Training Material © Stroma Certification 2013 | Version 1.3 Validity of the EPC The EPC is valid for Green Deal if: It has been lodged to landmark and is valid as per the requirements of EPBD in the relevant country. It has been produced after 1 st April 2012 (in England and Wales) or after 1 st October 2012 (in Scotland). The GDA is satisfied that there have been no major changes to the property since it was lodged that would materially affect the outcome of the EPC.
Domestic GDA Training – 4. RdSAP & the Green Deal16Training Material © Stroma Certification 2013 | Version 1.3 Golden Rule & Typical Repayments
Domestic GDA Training – 4. RdSAP & the Green Deal17Training Material © Stroma Certification 2013 | Version 1.3 The Golden Rule SRE GD C =+ E C + The Golden Rule says: the annual saving in energy cost from implementing the improvement measure must be at least equal to the annual repayments.
Domestic GDA Training – 4. RdSAP & the Green Deal18Training Material © Stroma Certification 2013 | Version 1.3 Green Deal Repayments Where: R - is the annual repayment C - is the cost of the measure (using the middle of the range where cost is given as a range) r - is the annual interest rate (currently 7%) n - is the repayment term, taken as lifetime of the measure in years
Domestic GDA Training – 4. RdSAP & the Green Deal19Training Material © Stroma Certification 2013 | Version 1.3 Green Deal Repayments Example: C is £500, r is 7%, n is 20 years = £47 The Golden Rule is met if the calculated annual saving for the measure is £47 or more. Round both R and the annual saving to the nearest £ before comparing them. RdSAP software calculates this for each recommended measure and passes the result (i.e. no tick, orange tick or green tick) to the EPC register in the lodgement XML. As an exception to the above, solid wall insulation gets a green tick. This is because a subsidy may be available via ECO (Energy Company Obligation) that reduces the cost to the householder to that available from GD finance.
Domestic GDA Training – 4. RdSAP & the Green Deal20Training Material © Stroma Certification 2013 | Version 1.3 Green Deal Repayments SRE GD C =+ E C + High energy cost before Green Deal Low energy cost after Green Deal Low installation cost of measure Short repayment term Low interest rate
Domestic GDA Training – 4. RdSAP & the Green Deal21Training Material © Stroma Certification 2013 | Version 1.3 Green Deal Finance The Golden Rule is the principle, which limits the amount of Green Deal finance that a provider can attach to the energy meter to the estimated energy bill savings that are likely to result from the installation of measures under the Green Deal plan. The new bill payments have to be equal to or less than the Green Deal Repayment + New Energy Cost. This principle aims to keep the energy bills at the property no higher than they would have been had the property been without a Green Deal – this is important both to protect consumers from higher energy bills, and to protect investors from a higher risk of default on the bill.
Domestic GDA Training – 4. RdSAP & the Green Deal22Training Material © Stroma Certification 2013 | Version 1.3 Green Deal Finance: PAYS The Pay As You Save Model
Domestic GDA Training – 4. RdSAP & the Green Deal23Training Material © Stroma Certification 2013 | Version 1.3 Green Deal Finance: Savings Small 3 bedroom semi detached house: £3,000 Double glazing £2,700 Condensing Combination Boiler with Heating Controls £1,000 Floor Insulation £1,000 Cavity Wall Fill, Loft Insulation, Draft Excluders £7,700Subtotal £2,559Interest over 10 Years at 6% £10,259Grand Total £10,580Savings over 10 years using RDSAP assumptions (The golden rule applies) £1, per annum overall savings £32 per annum immediate savings
Domestic GDA Training – 4. RdSAP & the Green Deal24Training Material © Stroma Certification 2013 | Version 1.3 Green Investment Bank Britain needs to invest around 200 billion pounds by 2020 in greener technologies to meet ambitious carbon emissions cut targets The Green Investment Bank is designed to accelerate private sector investment in the UKs transition to a green economy. Offshore wind power generation, commercial and industrial waste processing and recycling, energy from waste generation, non-domestic energy efficiency and support for the Green Deal will be the first priority sectors for the Bank, subject to approval by the European Commission. The bank will initially get £775m towards the £3bn total funding due to come from the Treasury. Its key role is to raise up to £15bn in private sector funding, from pension funds, foreign sovereign wealth funds, energy companies and banks, by underwriting the initial losses and risks from new and untested green technologies. The Green Investment Bank commenced lending in April 2012.
Domestic GDA Training – 4. RdSAP & the Green Deal25Training Material © Stroma Certification 2013 | Version 1.3 Green Deal Finance Company The Green Deal Finance Company (GDFC) is working alongside the Green Investment Bank to access private sector funding. Future Green Deal Providers - the companies that will make energy efficiency improvements – will need to access the cheapest possible underlying source of finance. If finance is not set at affordable interest rates, it will be more difficult to meet the Golden Rule. The GDFC intends to: Minimise the operating and administration costs of the Green Deal, accessing the cheapest sources of finance in the market at the highest possible credit rating. Maintain a consistent finance rate to all providers regardless of size.
Domestic GDA Training – 4. RdSAP & the Green Deal26Training Material © Stroma Certification 2013 | Version 1.3 Repayments Green Deal Providers can uplift the whole charge by 2% a year, in line with Bank of England inflation targets if desired. This will allow more Green Deal plans to meet the golden rule and for a greater proportion of these plans to be paid using Green Deal finance by capitalising on some of the expected increase in savings over the course of the plan and potentially decreasing the need for an upfront payment. There are two options for the repayments. Both are fixed repayment plans, but one is flat and the other rises by 2% each year.
Domestic GDA Training – 4. RdSAP & the Green Deal27Training Material © Stroma Certification 2013 | Version 1.3 Questions?
Domestic GDA Training – 4. RdSAP & the Green Deal28Training Material © Stroma Certification 2013 | Version 1.3 Stroma Certification Ltd. 4 Pioneer Way, Castleford, WF10 5QU Web Links Contacts
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