Climate Change Research ›› 2015, Vol. 11 ›› Issue (3): 205-211.doi: 10.3969/j.issn.1673-1719.2015.03.007

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Analysis of Energy Efficiency and Emission Reduction Potentials of Room Air Conditioning Sector of China

Liu Yuan1, Wang Lei2, Yun Jinqi1   

  1. 1 Foreign Economic Cooperation Office, Ministry of Environmental Protection, Beijing 100035, China; 
    2 China Household Electrical Appliances Association, Beijing 100062, China
  • Received:2014-12-17 Revised:2015-04-24 Online:2015-05-31 Published:2015-05-30
  • Contact: Yuan Liu

Abstract: In 2012, China owns 357 million units of room air conditioners. Based on capacity of total air conditioner units from survey results and working hours when provincial average temperature in summer exceeds 26℃, annual electric power consumption was 3.28×1011 kW?h, equivalent to 318 Mt CO2-eq of carbon emission. Domestic demand for room air conditioners is expected to grow further and may fold 4-5 times of the current number of units by 2030. If the power structure remains the same but the energy efficiency of room air conditioners doubles, greenhouse gas emissions generated from electric power consumption of room air conditioners will be 603 Mt CO2-eq in 2030. If the overall energy efficiency of room air conditioners doubles, the consumption percentage of the room air conditioners with high energy efficiency inereases, and China’s energy percentages of hydro, nuclear, solar and other low-carbon energy continue to grow, under the assumption that China’s demand for room air conditioners is satisfied in 2030, it is possible to maintain the greenhouse gas emissions produced by room air conditioners from electric power consumption at the current level.

Key words: room air conditioner, electric power consumption, energy efficiency, greenhouse gas emissions

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