An EPC also includes information on what the energy efficiency rating could be if you made the recommended improvements and highlights cost effective ways to achieve a better rating. Even if you rent your home, you could still implement some improvements noted on the EPC, such as switching to more energy efficient light bulbs.
The first page of your EPC starts with an estimate of the current and potential energy bills of the property. This is useful for knowing how much a new property will cost to run in energy bills, as well as how much lower the running costs could be if the energy efficiency was improved.
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It also shows the potential rating if you carry out all the suggested improvements. In this example, you can see that the home could jump from band F to B with the recommended energy efficiency upgrades.
This image shows the performance ratings after improvements listed below, however they only assume the improvements have been installed in the order they appear in the table. For more information you can refer to the energy grants calculator.
The next section lists other measures that can improve the energy efficiency of the property. Although there is less information about potential costs and savings, these alternatives can be something to consider, if you have more time and financial resources available to you.
If you need an EPC, contact a member of an 'approved organisation' (AO). These organisations have been chosen as their members have the skills and expertise needed to produce an EPC. They can make suitable recommendations for improving the building's energy efficiency.
There is a searchable list of AO assessors who work in your area, which can be accessed on the Scottish EPC register. To check if your building already has an EPC, you can search the register by entering either the building's postcode or Report Reference Number (the 16 digit number shown on the top right hand corner of the certificate).
Energy performance certificates (EPCs) are a rating scheme to summarise the energy efficiency of buildings.[4][5] The building is given a rating between A (Very efficient) - G (Inefficient). The EPC will also include tips about the most cost-effective ways to improve the home energy rating. Energy performance certificates are used in many countries.
Energy Star (trademarked ENERGY STAR) is a program run by the U.S. Environmental Protection Agency (EPA) and U.S. Department of Energy (DOE) that promotes energy efficiency.[6] The program provides information on the energy consumption of products and devices using different standardized methods. The Energy Star label[7] is found on more than 75 different certified product categories, homes, commercial buildings, and industrial plants. In the United States, the Energy Star label is also shown on the Energy Guide appliance label of qualifying products.
Energy performance certificates (EPCs) are a rating scheme to summarise the energy efficiency of buildings.[1][2] The building is given a rating between A (Very efficient) - G (Inefficient). The EPC will also include tips about the most cost-effective ways to improve the home energy rating. Energy performance certificates are used in many countries.
EPCs were introduced in England and Wales on 1 August 2007 as part of Home Information Packs (HIPs) for domestic properties with four or more bedrooms. Over time this requirement was extended to smaller properties.[3] When the requirement for HIPs was removed in May 2010, the requirement for EPCs continued. Rental properties, which have a certificate valid for 10 years, became required on a new tenancy commencing on or after 1 October 2008.[4]
The energy assessment needed to produce an EPC is performed by a qualified and accredited energy assessor who visits the property, examines key items such as cavity wall, floor and loft insulation, domestic boiler, hot water tank, radiators, heating controls windows for double glazing, and so on. They then input the observations into a software program which performs the calculation of energy efficiency. The program gives a single number for the rating of energy efficiency, and a recommended value of the potential for improvement. There are similar figures for environmental impact. A table of estimated annual energy bills (and the potential for improvement) is also presented, but without any reference to householder bills. The householder will have to pay for the survey, which costs around 75 - 100 for a four bedroom house. The exercise is entirely non-invasive, so the software will make assumptions on the insulation properties of various elements of the property based on age and construction type. The assessor has the ability to over-ride these assumptions if visual or written evidence is provided to support the presence of insulation which may have been subsequently installed.
The calculation of the energy rating on the EPC is based on the Standard Assessment Procedure (SAP). Existing dwellings are assessed using Reduced Data SAP (RdSAP), a simplified version of the SAP methodology that requires fewer data inputs. SAP and RdSAP are derived from the UK Building Research Establishment's Domestic Energy Model (BREDEM), which was originally developed in the 1980s and also underlies the NHER Rating. EPCs are produced by domestic energy assessors who are registered under an approved certification scheme.
The certificate includes recommendations on ways to improve the home's energy efficiency to save money.[6] The accuracy of the recommendations will depend on the inspection standards applied by the inspector, which may be variable. Inspectors, who may be Home Inspectors (HIs) or Domestic Energy Assessors (DEAs), are audited by their accreditation bodies in order to maintain standards. The recommendations appear general in tone, but are in fact bespoke to the property in question. The logic by which the RDSAP program makes its recommendations was developed as part of a project to create the RDSAP methodology, which took place during the early years of the 21st century.[10] The EU directive requires the EPC recommendations to be cost effective in improving the energy efficiency of the home, but in addition to presenting the most cost effective options, more expensive options which are less cost effective are also presented. To distinguish them from the more cost effective measures, these are shown in a section described as 'further measures'. Because the EPC is designed to be produced at change of occupancy, it must be relevant to any occupier and it therefore must make no allowance for the particular preferences of the current occupier.
The possible exemption of listed buildings has always been a contentious issue. As a devolved issue, no exemption of listed buildings exists under the Scottish Regulations. In England & Wales, listed buildings are only exempt "...in so far as compliance with certain minimum energy performance requirements would unacceptably alter their character or appearance." The only way to determine whether an EPC will have recommendations that would unacceptably alter the appearance or character of the listed dwelling is lodge an EPC and find out.[11]
All non-domestic EPCs must be carried out by, or under the direct supervision of, a trained non-domestic energy assessor, registered with an approved accreditation body. The Department for Levelling Up, Housing and Communities (DLUHC), formerly the Ministry for Housing, Communities and Local Government (MHCLG), has arranged for a publicly accessible central register
From October 2008 all buildings including factories, offices, retail premises and public sector buildings - must have an EPC whenever the building is sold, built or rented. Public buildings in England and Wales (but not Scotland) also require a display energy certificate showing actual energy use, and not just the theoretical energy rating. From January 2009 inspections for air conditioning systems will be introduced.
Display energy certificates (DECs) show the actual energy usage of a building, the Operational Rating, and help the public see the energy efficiency of a building. This is based on the energy consumption of the building as recorded by gas, electricity and other meters. The DEC should be clearly displayed at all times and clearly visible to the public. A DEC is always accompanied by an Advisory Report that lists cost effective measures to improve the energy rating of the building.
Display energy certificates are only required for buildings with a total useful floor area over 500m2 that are occupied by a public authority and institution providing a public service to a large number of persons and therefore visited by those persons. The useful floor area limit will be reduced to 250m2 in July 2015.
However, to make it easier for public authorities with multiple buildings on one site to comply with the legislation, a site-based approach for the first year (to October 2009) is allowed where it is not possible to produce individual DECs. This means that only one DEC will need to be produced based on the total energy consumption of the buildings on the site. Public bodies most affected by this relaxation are NHS Trusts, universities and schools.
The requirement for display energy certificates came into effect from 1 October 2008. They were trialled in the UK under an EU-funded project also called "Display" and co-ordinated by Energie-Cits; participants included Durham County Council and the Borough of Milton Keynes.
This is the operational rating for this building. The rating shows the energy performance of the building as it is being used by the occupants, when compared to the performance of other buildings of the same type. A building with performance equal to one typical of its type would therefore have an Operational Rating of 100. A building that resulted in zero CO2 emissions would have an Operational Rating of zero, and a building that resulted in twice the typical CO2 emissions would have an Operational Rating of 200. e24fc04721
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