Display Energy Certificates (DECs) are records of the actual energy usage of public buildings, introduced by a number of European governments in response to the EU Energy Performance of Buildings Directive, which all EU member states had to implement by January 2009. DECs are designed to increase transparency about the energy efficiency of public buildings. The certificate looks similar to the energy labels provided on new cars and electrical appliances such as fridges and freezers – it uses a similar scale for energy efficiency, i.e. from A to G with A being the most efficient and G the least. The aim of the Energy Performance of Buildings Directive is for the public to receive energy information about a building they are visiting.
In Ireland, the display of a DEC became mandatory for all public buildings over 1,000m² from 1 January, 2009. Since 9 July 2015, all public buildings in the UK over 250m² must display a DEC prominently at all times. Where the building has a total useful floor area of more than 1,000m², a UK DEC is valid for 12 months. The accompanying advisory report is valid for seven years. Where the building has a total useful floor area of between 250m² and 999m², the DEC and advisory report are valid for 10 years.[ citation needed ]
DECs are not required in public buildings in Scotland. EPCs are used instead. [1]
DECs are designed to promote the improvement of the energy performance of buildings. The A3 sized certificate is valid for one year and is accompanied by an Advisory Report (AR) which is valid for seven years. The advisory report is designed to help building owners and occupiers to improve the energy efficiency of their buildings so that future DECs show a better rating. ARs do not need to be displayed, but must be available.
DECs and ARs must be undertaken by an accredited energy assessors using approved software. In order to produce the DEC the energy assessor needs to know the gross internal floor area of the building and the operating hours together with actual meter readings or consignment notes for all fuels used during the year of assessment. It is, therefore, important for owners and occupiers of public buildings over 1,000m² to maintain good records of fuel used. If the energy assessor does not have access to suitable and sufficient information then a DEC cannot be produced.
The option to generate a default G rating was withdrawn in the UK on April 16, 2011.
The penalty for each breach is £500 for failing to display a DEC at all times in a prominent place clearly visible to the public and £1,000 for failing to have possession of a valid advisory report. In addition to these penalties, it is still necessary to commission a DEC and an advisory report.
In the future the Government is expected to extend the requirement for DECs large privately owned buildings which the public have access to, such as supermarkets.
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. The program provides information on the energy consumption of products and devices using different standardized methods. The Energy Star label 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.
The MOT test is an annual test of vehicle safety, roadworthiness aspects and exhaust emissions required in the United Kingdom for most vehicles over three years old. In Northern Ireland the equivalent requirement applies after four years. The requirement does not apply to vehicles used only on various small islands with no convenient connection "to a road in any part of Great Britain"; no similar exemption is listed at the beginning of 2014 for Northern Ireland, which has a single inhabited island, Rathlin. The MOT test was first introduced in 1960 as a few basic tests of a vehicle and now covers twenty different parts or systems on or in the car.
A low-energy house is characterized by an energy-efficient design and technical features which enable it to provide high living standards and comfort with low energy consumption and carbon emissions. Traditional heating and active cooling systems are absent, or their use is secondary. Low-energy buildings may be viewed as examples of sustainable architecture. Low-energy houses often have active and passive solar building design and components, which reduce the house's energy consumption and minimally impact the resident's lifestyle. Throughout the world, companies and non-profit organizations provide guidelines and issue certifications to guarantee the energy performance of buildings and their processes and materials. Certifications include passive house, BBC - Bâtiment Basse Consommation - Effinergie (France), zero-carbon house (UK), and Minergie (Switzerland).
Under Part 5 of the Housing Act 2004 a Home Information Pack, sometimes called a Seller's Pack, was to be provided before a property in England and Wales could be put on the open market for sale with vacant possession. There is separate legislation for Scotland that requires anyone selling a property to provide a Home Report. The pack was a set of documents about the property: an Energy Performance Certificate, local authority searches, title documents, guarantees, etc. The introduction of HIPs was subject to delays and reduced requirements, but they became mandatory for homes with four or more bedrooms on 1 August 2007 and were extended to three-bedroomed properties from 10 September 2007.
Building regulations in the United Kingdom are statutory instruments or statutory regulations that seek to ensure that the policies set out in the relevant legislation are carried out. Building regulations approval is required for most building work in the UK. Building regulations that apply across England and Wales are set out in the Building Act 1984 while those that apply across Scotland are set out in the Building (Scotland) Act 2003. The Act in England and Wales permits detailed regulations to be made by the Secretary of State. The regulations made under the Act have been periodically updated, rewritten or consolidated, with the latest and current version being the Building Regulations 2010. The UK Government is responsible for the relevant legislation and administration in England, the Welsh Government is the responsible body in Wales, the Scottish Government is responsible for the issue in Scotland, and the Northern Ireland Executive has responsibility within its jurisdiction. There are very similar Building Regulations in the Republic of Ireland.
Domestic housing in the United Kingdom presents a possible opportunity for achieving the 20% overall cut in UK greenhouse gas emissions targeted by the Government for 2010. However, the process of achieving that drop is proving problematic given the very wide range of age and condition of the UK housing stock.
Various energy conservation measures are taken in the United Kingdom.
The National Home Energy Rating Scheme (NHER) is both a UK accreditation scheme for energy assessors and a rating scale for the energy efficiency of housing.
An energy audit is an inspection survey and an analysis of energy flows for energy conservation in a building. It may include a process or system to reduce the amount of energy input into the system without negatively affecting the output. In commercial and industrial real estate, an energy audit is the first step in identifying opportunities to reduce energy expense and carbon footprint.
Energy performance certificates (EPCs) are a rating scheme to summarise the energy efficiency of buildings. The building is given a rating between A - G (Inefficient), the EPC will also include tips the most cost effective ways to improve your homes energy rating. Energy performance certificates are used in many countries.
The Chartered Institution of Building Services Engineers is an international professional engineering association based in London, United Kingdom that represents building services engineers, also commonly known as mechanical and electrical engineers, architectural engineers, technical building services engineers, building engineers, or facilities and services planning engineers. It is a full member of the Construction Industry Council, and is consulted by government on matters relating to construction, engineering and sustainability. It is also licensed by the Engineering Council to assess candidates for inclusion on its Register of Professional Engineers.
Energy performance certificates (EPCs) are a rating scheme to summarise the energy efficiency of buildings.
A Home Energy Rating is an estimated measurement of a home's energy efficiency based on normalized modified end-use loads (nMEULs). In the United States, the Residential Energy Services Network (RESNET) is responsible for creation and maintenance of the RESNET Mortgage Industry National Home Energy Rating Standards (MINHERS), a proprietary system of standards, which includes standards language for the certification and quality assurance on RESNET Provider organizations. They also manage standards in compliance with the American National Standards Institute, namely ANSI 301, ANSI 310, ANSI 380, and ANSI 850. The Building Science Institute, Ltd. Co. (BSI) is another quality management organization that relies on the ANSI Standards to produce Energy Ratings and compliance with above-code programs such as the ENERGY STAR New Homes Program.
The Energy Performance of Buildings Directive (EPBD) is the European Union's main legislative instrument aiming to promote the improvement of the energy performance of buildings within the European Union. It was inspired by the Kyoto Protocol which commits the EU and all its parties by setting binding emission reduction targets.
The Energy Efficiency Rating (EER) is a score applied to dwellings in the Australian Capital Territory. It ranges from zero to six system– the higher the number of stars, the better. This is mandatory for all dwellings offered for sale in the ACT.
A Domestic Energy Assessor (DEA) for efficient energy use is an accredited position in the UK that is approved by the Ministry for Housing, Communities and Local Government (MHCLG). Under the UK's Energy Performance of Buildings Regulations, an Energy Performance Certificate is required for the sale or rent of a domestic dwelling. DEAs are qualified and accredited for the production of RdSAP EPCs - these are specifically for use on existing buildings, which would include an dwelling built after 2008 which had already received an on-construction SAP EPC. As of November 2018, DEAs had produced 16,849,375 RdSAP EPCs since the inception of the industry.
The Green Deal was a UK government policy initiative that gave homeowners, landlords and tenants the opportunity to pay for energy efficient home improvements through the savings on their energy bills from 2012 to 2015. At the heart of the Green Deal was the rule that savings on bills would exceed the cost of the work. By meeting this 'Golden Rule', consumers were able to receive energy savings without direct cost. Consumers then paid back the cost of such improvements through the expected savings in their energy bills. However, there is no guarantee that the eventual savings made by consumers will match the cost of the loans they take out to make the improvements and industry bodies recognised there was a risk consumers could end up out of pocket.
NABERS, the National Australian Built Environment Rating System, is an initiative by the government of Australia to measure and compare the environmental performance of Australian buildings and tenancies. There are NABERS rating tools for commercial office buildings to measure greenhouse gas emissions, energy efficiency, water efficiency, waste efficiency and indoor environment quality. There are also energy/greenhouse and water rating tools for hotels, shopping centres and data centres.
Energy brokers assist clients in procuring electric or natural gas from energy wholesalers/suppliers. Since electricity and natural gas are commodities, prices change daily with the market. It is challenging for most businesses without energy managers to obtain price comparisons from a variety of suppliers since prices must be compared on exactly the same day. In addition, the terms of the particular contract offered by the supplier influences the price that is quoted. An energy broker can provide a valuable service if they work with a large number of suppliers and can actually compile the sundry prices from suppliers. An important aspect of this consulting role is to assure that the client understands the differences between the contract offers. Under some State Laws they use the term "Suppliers" to refer to energy suppliers, brokers, and aggregators, however there are very important differences between them all.
Housing in the United Kingdom represents the largest non-financial asset class in the UK; its overall net value passed the £5 trillion mark in 2014. About 30% of homes are owned outright by their occupants, and a further 40% are owner-occupied on a mortgage. About 18% are social housing of some kind, and the remaining 12% are privately rented.
