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opinion: regulAtions performance indicator The revised Energy Performance of Buildings Directive sets new challenges for the sector, writes Hywel Davies epBd briefing 26 The original Energy Performance of Buildings Directive (EPBD), adopted eight years ago, has led to changes in the way we calculate compliance of buildings with Part L of the Building Regulations – or Part F in Northern Ireland, or Section 6 in Scotland. But the EPBD was revised last year, and its scope extended in a number of ways. There has also been a shift in its overall emphasis to reflect the greater focus in Europe on security of energy supply and the energy efficiency of buildings, rather than on carbon emissions. There is much more attention to existing buildings and the importance of renovating the existing stock. The changes also seek to reduce the variations in implementation measures between member states. The provisions of the directive cover energy used for space and hot water heating, cooling, ventilation, and lighting for new and existing residential and non residential buildings. The revision now sets a target for all new buildings, and existing buildings which undergo ‘major renovation’, to be ‘nearly zeroenergy buildings’ by 2020. The UK already has goals for zero carbon homes by 2016 and nondomestic buildings by 2019, which will largely address this requirement, but it constrains the government’s scope to extend the timetable for ‘zero carbon’ and the scope for ‘allowable solutions’ to help achieve ‘zero CIBSE has published a briefing on the EPBD, prepared by Andrew Warren, director of the Association for the Conservation of Energy, with contributions by Hywel Davies. The briefing can be downloaded at www.cibse.org/knowledgebank, and provides more detail on the various changes to the Directive and the timescales for implementation. carbon’ buildings. The ‘nearly-zero’ requirement for refurbishment is an added challenge. The minimum energy performance requirements for new buildings will apply to existing buildings when ‘major renovation’ is carried out, with no threshold floor area (Article 7). Each government must also provide details of financial incentives for ‘nearly zero’ energy buildings (Art 10). The inclusion of existing buildings is important. If we are to meet our national targets, we have more than one and a half million commercial buildings to refurbish. We need to start this soon, as long refurbishment cycles can lock in poor energy performance for many years to come. Given the recent shocks to global energy supply, we simply do not have very long to start reducing our demand for energy from unstable or unfriendly regions of the world. There are significant changes to the area and the types of buildings which must display an energy certificate. The threshold for public buildings comes down to 500 sq m from July 2013, and in 2015 that will drop to 250 sq m. Many larger private sector buildings will also have to display certificates. Whenever a building is constructed, sold or rented out, an energy certificate is required and must be made available to prospective purchasers or tenants. The full certificate must be shown to any prospective new tenant or buyer, and a copy handed over on completion of any contract. All advertisements in commercial media concerning a building or part of it offered for sale or rent must state the energy performance from the certificate (or an initial indicator if under construction). Energy Performance Certificates will have to provide detailed, building-specific recommendations for improvements to the building to reduce energy consumption. Government must introduce effective penalties for noncompliance (Art 27), in response to the currently widespread lack of effective enforcement of energy certification and air conditioning inspections. The directive states that ‘penalties must be effective, proportionate and dissuasive’. Government must tell the Commission what these penalties are by 9 January 2013. The coalition government has already canvassed views on improving compliance with the existing directive, and work to address this is ongoing. However, further action to improve levels of compliance is now likely to be needed to implement this Article. Governments must adopt regulations and procedures for most of the requirements by July 2012, and implement them over the following 12 months, with the change in threshold size falling again in 2015. If we are to meet our national targets, we have more than one and a half million commercial buildings to refurbish Consultations on implementating the directive are due in coming months. CIBSE will be contributing to these, so those who are interested should watch the consultation page on the website, the technical bulletin and the Journal for news. l Hywel Davies is technical director of CIBSE CIBSE Journal April 2011 www.cibsejournal.com
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Page 17 and 18: The FLEET FLEET Vertical 26 models
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