Potential life cycle energy savings through a transition from typical to energy plus households: A case study from Thailand
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Author list: Iqbal M.I., Himmler R., Gheewala S.H.
Publisher: Elsevier
Publication year: 2017
Journal: Energy and Buildings (0378-7788)
Volume number: 134
Start page: 295
End page: 305
Number of pages: 11
ISSN: 0378-7788
eISSN: 1872-6178
Languages: English-Great Britain (EN-GB)
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Abstract
Through a comparative life cycle analysis of typical, nearly net zero, net zero and energy plus houses in Thailand, each having a net floor area of 141.4 m2; this study demonstrates that the operational electricity demand of typical houses can be reduced by 37% by incorporating various energy saving measures and goes further to establish that this reduced demand can be partially, fully or-over met through in-house electricity generation by solar photovoltaic. Over a period of 50 years, the transition from typical to nearly net zero and net zero energy houses is assessed to offer total life cycle primary energy savings of about 69% and 86%, respectively; while the energy plus house is assessed to have (i) a potential of feeding in 7450 kWh of electricity into the public grid each year and (ii) the capability of being energy neutral in a life cycle perspective over a duration of 16 years. The embodied energies through the evolution from typical to energy plus houses are however noted to grow up to 214%, mainly because of the manufacture of photovoltaic panels. ฉ 2016 Elsevier B.V.
Keywords
Energy plus house, life cycle energy analysis, Nearly net zero energy house, Net zero energy house, Typical house
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