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The Energy Performance of Buildings (England and Wales) Regulations 2012 came into effect on 9th January 2013. The regulations require that Energy Performance Certificates (EPCs) are produced for most buildings.
This practice is accredited by Elmhurst Energy Systems Ltd. to perform On Construction Domestic Energy assesssments and to produce EPCs for new dwellings.
Energy performance certificates (EPCs) set out the energy efficiency rating of buildings and are a mandatory requirement when buildings are built. If a building contains separate units, such as in a block of flats, each unit needs an EPC. An EPC shows a building's energy efficient rating from A to G, where A represents a very energy efficient building and G a very inefficient building. To produce an EPC for a new building requires that a SAP (Standard Assessment Procedure) calculation is performed at the design stage of a project, before any work commences on site. EPCs can only be produced by accredited Energy Assessors. Assessors also provide recommendations on how the building might be made more energy efficient.
The Standard Assessment Procedure (SAP) is the method used by the Government to assess and compare the energy and environmental performance of dwellings. A SAP calculation gives an indication of the carbon emissions and fuel costs associated with occupying a dwelling, based on the physical characteristics of the dwelling and on standardised occupancy and heating patterns. This allows a comparison of designs in terms of typical cost to run and asociated carbon emissions. The calculation includes space heating, hot water heating, cooling, ventilation and lighting but excludes non-regulated energy use, such as for cooking or appliances.
The outputs of a SAP assessment can be used by Building Control to check for compliance against Building Regulations requirements. SAP has been cited as a means of assessing dwelling performance in Part L of the Building Regulations since 1994. The 2013 Amendment to Part L is predicated on the 2012 version of SAP which came into force for building regulations compliance on 6 April 2014.
Approved Document L1A (2013) for England, L1A (2014) for Wales, and Scottish Building Standards Section 6 (2011) provide guidance on how to demonstrate to Building Control that a dwelling has been constructed in compliance with the relevant energy efficiency requirements. SAP calculations are required in order to demonstrate compliance for new dwellings, new buildings converted to dwellings, and some extensions and refurbishment work.
The calculations must be done by an accredited Energy Assessor using software approved for SAP calculations by BRE on behalf of the Government (paragraph 2.3 of Approved Document L1A 2013). Compliance is demonstrated through a Design stage energy assessment submission before work starts (paragraph 2.12 of Approved Document Part L 2013) and then an As-Built submission on completion, based on the design and specification as constructed, and taking into account air-leakage tests. A clear connection must be evident between specifications of the building and its materials and construction and the data input into the SAP software. The calculations for the As Built submission are used by the Energy Assessor to produce the EPC for the completed dwelling.
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In that passage, there are two hundred and nine occurrences of the letter "s."
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