Heating and cooling energy trends and drivers in buildings

The purpose of this paper is to provide a source of information on thermal energy use in buildings, its drivers, and their past, present and future trends on a global and regional basis. Energy use in buildings forms a large part of global and regional energy demand. The importance of heating and cooling in total building energy use is very diverse with this share varying between 18% and 73%. Biomass is still far the dominant fuel when a global picture is considered; the role of electricity is substantially growing, and the direct use of coal is disappearing from this sector, largely replaced by electricity and natural gas in the most developed regions. This paper identifies the different drivers of heating and cooling energy demand, and decomposes this energy demand into key drivers based on a Kaya identity approach: number of households, persons per household, floor space per capita and specific energy consumption for residential heating and cooling; and GDP, floor space per GDP, and specific energy consumption for commercial buildings. This paper also reviews the trends in the development of these drivers for the present, future – and for which data were available, for the past – in 11 world regions as well as globally. Results show that in a business-as-usual scenario, total residential heating and cooling energy use is expected to more or less stagnate, or slightly decrease, in the developed parts of the world. In contrast, commercial heating and cooling energy use will grow in each world region. Finally, the results show that per capita total final residential building energy use has been stagnating in the vast majority of world regions for the past three decades, despite the very significant increases in energy service levels in each of these regions.

[1]  K. Riahi,et al.  Greenhouse Gas Emissions in a Dynamics-as-Usual Scenario of Economic and Energy Development , 2000 .

[2]  A. K. Nicholls,et al.  Residential and commercial buildings data book: Third edition , 1988 .

[3]  Aie,et al.  Energy Technology Perspectives 2012 , 2006 .

[4]  Diana Ürge-Vorsatz,et al.  Energy in transition: From the iron curtain to the European Union , 2006 .

[5]  Yongchen Song,et al.  Decomposition of energy-related CO2 emission over 1991-2006 in China , 2009 .

[6]  Nebojsa Nakicenovic.  Socio-economic driving forces of emissions scenarios , 2004 .

[7]  Wolfgang Lutz,et al.  Population, Households, and CO2 Emissions , 1995 .

[8]  Keywan Riahi,et al.  Chapter 17 - Energy Pathways for Sustainable Development , 2012 .

[9]  Jianguo Liu,et al.  Environmental impacts of divorce , 2007, Proceedings of the National Academy of Sciences.

[10]  Diana Ürge-Vorsatz,et al.  Best Practice Policies for Low Energy and Carbon Buildings: A Scenario Analysis. Research report prepared by the Center for Climate Change and Sustainable Policy (3CSEP) for the Global Buildings Performance Network May 2012 , 2012 .

[11]  D. Vuuren,et al.  Modeling global residential sector energy demand for heating and air conditioning in the context of climate change , 2009 .

[12]  Jiyong Eom,et al.  Energy use in buildings in a long-term perspective , 2013 .

[13]  K. Riahi,et al.  Energy technology strategies for carbon dioxide mitigation and sustainable development , 2000 .

[14]  N. Nakicenovic,et al.  Global Energy Assessment – Toward a Sustainable Future , 2012 .

[15]  Peng Zhou,et al.  The driving forces of change in energy-related CO2 emissions in Ireland: A multi-sectoral decomposition from 1990 to 2007 , 2012 .

[16]  P. Bosch,et al.  Climate change 2007 - mitigation of climate change , 2007 .

[17]  Y. Kaya.  Impact of carbon dioxide emission control on GNP growth : Interpretation of proposed scenarios , 1989 .

[18]  Atul K. Jain,et al.  Energy implications of future stabilization of atmospheric CO2 content , 1998, Nature.

[19]  Luisa F. Cabeza,et al.  Investigating greenhouse challenge from growing trends of electricity consumption through home appliances in buildings , 2014 .