Shifting air-conditioner load in residential buildings: benefits for low-carbon integrated power grids

作者：Ali, Syed Muhammad Hassan^*; Lenzen, Manfred; Huang, Jing

来源：IET Renewable Power Generation, 2018, 12(11): 1314-1323.

DOI：10.1049/iet-rpg.2017.0859

• air conditioning
• building management systems
• power grids
• insulation
• power system reliability
• shifting air-conditioner load
• low-carbon integrated power grid
• low-carbon electricity supply simulation
• residential building
• renewable electricity grid
• solar resource
• biomass resource
• hydroresource
• wind resource
• insulation model
• Australian electricity demand
• reliability standard
• power network
• time 1 h
• power 130 GW

This study presents a simulation of low-carbon electricity supply for Australia, contributing new knowledge by demonstrating the benefits of load shifting in residential buildings for downsizing renewable electricity grids comprising wind, hydro, biomass, and solar resources. The load-shifting potential for the whole of Australia is estimated, based on air-conditioner load data and an insulation model for residential buildings. Load shifting is applied to enable transferring residential air-conditioner load from peak to off-peak periods, assuming that air-conditioners can be turned-on a few hours ahead of need, during periods where demand is low and renewable resource availability is high, and turned-off during periods of high demand and low resource availability. Thus, load shifting can effectively reduce installed capacity requirements in renewable electricity grids. For 1h load shifting of residential air-conditioners, Australian electricity demand can be met at the current reliability standards by 130GW installed capacity, at cost around 12.5C/kWh, and a capacity factor of 32%. The installed capacity can be further reduced by increasing the number of hours that loads can be shifted. The findings suggest that the application of load shifting in residential buildings can play a significant role for power networks with high renewable energy penetration.

• 出版日期2018-8-20