The Association for Environment Conscious Building (AECB) is the leading network for sustainable building professionals in the United Kingdom . Membership of the AECB includes local authorities , housing associations , builders , architects , designers , consultants and manufacturers . The association was founded in 1989 to increase awareness of the need to respect, protect, preserve and enhance the environment and promote sustainable development.

Less is More

This report [1] has been published at the end of an unprecedented fifteen years in UK energy policy history. It began with the formal acceptance of a climate change policy by the Conservative Government in 1997 and culminated with the Climate Change Act 2008 and the 4th Carbon Budget. [2] Less is more a significant new contribution to the debate and offers an alternative to the emerging orthodoxy of large-scale electrification of heat and road transport as a way to achieve or beat the UK’s 2050 CO 2emissions target. This is based on more vigorous and systematic pursuit of energy efficiency throughout the economy; such technologies as large-scale solar heat, piped to urban buildings; a road and air transport system synthesising liquid fuels in renewable energy, supplementing the biofuel resource; a small electricity supply system, powered by despatchable sources, assisting with network security; and the more vigorous pursuit of carbon dioxide (CO 2 ) sequestration options, particularly in the biosphere.

Less is More contends That year electric future is more and Could Be Costly Slower to deliver significant CO 2 reductions than the alternatives. Vigorous pursuit of energy efficiency, plus biosequestration, plus more focus on UK energy uses and the characteristics of energy systems, sets the stage for significantly cheaper and more secure energy supply options. Less-electric future appear to have the capacity to deliver CO 2both cheaply and more quickly than more-electric. Cumulative emissions to 2050 are at least important in the year 2050. The report highlights key areas for technology, product and supply chain development. They include piped heat, which is a mature technology in many of Britain’s continental neighbors, and heats over 60% of Danish buildings, but remains uncommon in the UK. They include high-performance insulation systems, and renewable energy production. Heat networks play a systematic role in the scenario, opening up access to large-scale solar, geothermal and waste heat resources, and lower energy sources that reduce the risk that the UK will be unable to keep the lights on.

Less is More contains a critique of the dysfunctionality of UK energy markets. The authors note that they are supplied by local-regulated and locally-regulated monopolies, which are particularly important if they are debt-funded. They pose the question of why such arrangements can not be used in the energy sector, as it happens with other private utilities and with utilities in Denmark. The report does not offer the prospect of an easy path to energy independence and decarbonization. It makes it very clear that all options pose acute difficulties. But it warns policy-makers not to reject technologies just because they seem difficult without making comparisons with the reality of the other technologies under consideration. [3]

AECB Silver Certification

AECB Silver Certification is a self-certification scheme open to building projects that meet the AECB Silver Standard design and performance criteria. [4] The self-certification AECB self-certification has traditionally become self-certifying (typically the building’s energy consultant) to take responsibility for certification and for underwriting the Silver Standard claim. AECB Silver compliance can not be assumed unless it has been modeled in PHPP [5](passivhaus planning software) and construction quality has been verified.

The AECB self-certification process is designed to make the design of the industry a reality. This approach is the responsibility of the customer and the responsibility of the customer.

Low-carbon building

While the AECB recognises That All aspects of sustainability are important it Believes That climate change Threatens to overwhelm icts members‘ achievements in other areas. It is therefore focusing Currently we try trying to help Reduce Carbon Emissions related to domestic and non-domestic buildings in the UK (around 50% of UK CO 2 Emissions – excluding flying – relates to buildings). The association believes that the Government’s target of a 60% reduction in CO 2 emissions by 2050 is too little, too late, and that a reduction of at least 85% is required to meet the challenges of climate change .

Low-carbon standards

To promote low-carbon building, the association has developed two advanced energy standards and adopted a third, in order to provide three steps to low energy and low carbon buildings achievable by the UK over the next 40 years. These standards are largely based on the methodology and principles of the German Passivhaus movement, developed by the Passivhaus Institute, and are also informed by American, Canadian, and European energy standards. The standards themselves are related to the development and training program which the AECB has called the ‚Carbon Literature Design and Construction Program‘ (CLP).

The ‚Step One‘ standard (Silver) is close to the Canadian R-2000 , the German Low Energy House ( Niedrigenergiehaus ), and the Swiss MINERGIE Standard.

The AECB has made this high-performance standard. It estimates that, it is a low-risk option, will reduce overall CO₂ emissions by 70% compared with the UK average for buildings of each type. standard could be met.

Step Two, the Passivhaus (or Passive house ) Standard takes full advantage of existing energy-efficient technology without entailing the perceived risk associated with radical innovation. A considerable improvement on UK standard driving practices, the AECB estimates that the standard Passivhaus would reduce overall CO₂ emissions by approximately 80% compared with the UK average for buildings of each type.

The AECB estimates that the Three Standard, the Gold Standard, would reduce overall CO₂ emissions by 95% compared with the UK average for buildings of each type, since this standard is almost identical to the Passivhaus Standard in terms of thermal efficiency on CO₂ emissions and overall primary energy use. This standard requires a greater emphasis on electricity-producing renewables to offset power for lighting, appliances and ventilation.

The AECB, believing that rigorous alternative approaches based on successful overseas experience for sustainable design and construction have a complementary place UK government initiatives, has been lobbying for the Government’s Code for Sustainable Homes to be aligned with its CLP, or at least for the CLP (cont’d its methodological and base-line measuring differences) to be treated as an alternative for low and low carbon buildings. The AECB has taken the stance of inviting the design and construction industry to judge for itself, based on the results of the lowest carbon and low carbon performance.

Low Energy Buildings Database

A guiding principle of the AECB is to focus on what really works in practice, to deliver buildings with genuinely improved environmental performance. The AECB established the AECB / CarbonLite Buildings Performance Database with the support of the Technology Strategy Board [6] to show what they could actually achieve in reality. The database draws on the collective experience of AECB members, and also the team involved in the Retrofit for Future Projects, [7] and shares that learning. Almost uniquely, this database gives an honest account to anyone planning a low energy building of what can be achieved, along with a detailed account of how it has been done.

The database includes information on both refurbishment and new build projects, in both the domestic and non-domestic sectors. The database shows the performance of each building, in both figures and clearly presented graphs. Design intention can easily be compared with built reality, and projects can easily be compared with each other. For each project you can see detailed design strategies, descriptions and illustrations of the building type, the measures taken and technologies employed. The results of this study are likely to increase, and the benchmarking will be robust, and the benchmarks for energy and carbon performance can be achieved across a wide range of building types.

See also

  • Code for Sustainable Homes
  • Energy efficiency in British housing
  • Good Homes Alliance
  • Low-energy building
  • National House Building Council
  • Sustainability
  • UK Green Building Council


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  3. Jump up^ Extract from Foreword by Prof. Robert Lowe Deputy Director and Prof. Tadj Oreszczyn, Director Energy Institute, UCL
  4. Jump up^ „Archived copy“ . Archived from the original on 2016-03-04 . Retrieved 2014-01-27 .
  5. Jump up^ from: Passivhaus # PHPP-Standard of the Passivhaus Institutes .28Qualit.C3.A4tsgepr.C3.BCasts Passivhaus.29
  6. Jump up^ „Archived copy“ . Archived from the original on 2014-02-08 . Retrieved 2014-01-27 .
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