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Creative Energy Homes |
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ContextConcern over global warming and depletion of the ozone layer has stimulated research to develop energy-efficient systems and sustainable buildings. Furthermore, as reserves of fossil fuels diminish there will be increasing pressure to use renewable energy sources. The UK Government is committed to reducing carbon dioxide (CO2) emissions by 20% by the year 2010 but this is set against the projection of a further 4.2 million new houses being constructed between now and 2016. Dwellings in the UK account for approximately 28% of the UK total of carbon dioxide emissions through the burning of fossil fuel for heating, lights and appliances. This includes combustion on the premises, mainly natural gas for heating and cooking, and combustion in power stations to produce electricity for homes. Space heating accounts for 57%; water heating a further 25%; cooking 5% and lights and appliances 13%. The demand for energy to run heating/hot water systems and other home appliances such as refrigerators, cookers, lighting, etc is expected to be 13% higher in 2010 than it was in 1990. If the CO2 emissions target is to be achieved, it will therefore be necessary to develop better construction techniques and new and renewable energy technologies for building applications. Fast-track prefabrication techniques are also required to speed up the house building process and reduce wastage and defects. |
