Energy Storage Science and Technology ›› 2017, Vol. 6 ›› Issue (4): 726-729.doi: 10.12028/j.issn.2095-4239.2017.0058

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Electricity load analysis on a dual heating and cooling system with off-peak thermal energy storage

BAI Fang1,3, CHEN Xudong1, YIN Shaowu1,2, LIU Chuanping1,2, TONG Lige1,2, WANG Li1,2   

  1. 1School of Energy and Environmental Engineering, University of Science and Technology Beijing, Beijing 100083, China;2 Beijing Higher Institution Engineering Research Center of Energy Conservation and Environmental Protection,  Beijing 100083, China; 3Heibei Petroleum Vocational and Technical College, Langfang 065000, Hebei, China
  • Received:2017-05-16 Revised:2017-06-09 Online:2017-07-01 Published:2017-07-01

Abstract:

A combined heating and refrigeration system (HRS) with off-peak thermal energy storage is proposed for load shift of electrical grids and efficiency enhancement of power generation. We show that the average electricity load rate (AELR) of power grid in Beijing area could be increased from 80.56% to 100% in summer, and from 83.10% up to 90% in winter, if 10% the residential central heating / cooling systems uses the HRS technology.

Key words: power grid, energy storage, off-peak electricity, refrigeration, heating