1. Smart Air-Conditioning for Smart Grid
Javad Jazaeri, PhD, Second Year, Electrical and Electronic Engineering
ORCID ID:
LinkedIn
Introduction
About half of the electricity bills is caused by the cost of maintaining and upgrading electricity grid to meet the peak demand (Figure 1).
The peak demand is the result of air-conditioning demand in hot summer days (Figure 2).
The peak demand can be reduced by shifting some of the electricity demand to off-peak periods (mornings).
Proposed Innovation
Shifting some demands to off-peak periods by:
Remotely controlling air-conditioning units via an internet-connected receiver
Maintaining the indoor temperature by pre-cooling the house prior to peak periods
The air-conditioners receive signals to pre-cool the house before peak periods and to switch off during peak periods.
Current Technologies
Battery is the main technology used to shift electricity demand.
The problems include:
High initial cost
Short life time (5-8 years)
Safety issues
Figure 2: Typical Electricity Demand in Summer
Advantages of this Innovation
Small upfront cost
Easy to install
No life limit
No safety issues
Suitable for all building types
22%
22%
56%
To Generators
To Retailers
To Network
Figure 1: Breakdown of Electricity Bills
(Data source: [1])

2. Analysis Results Potential Impacts References Acknowledgment
Thermodynamic and electrical power analysis for a network of multiple residential buildings (Figure 3).
The analysis includes:
Modelling thermal demand
Developing control algorithm
Simulations for networks
Experimental verification
Results
Figure 4 shows the electricity demand of multiple houses with:
Black line: no control
Red line: precooling and control
Our method has shown to [2,3]:
Reduce peak electricity demand
Defer expensive grid upgrade
Maintain the comfort level of occupants
Potential Impacts
Household
Lower electricity bills
Higher quality of service
Electricity industry
Lower cost of generation
Higher upgrade savings
Society
Lower greenhouse gases
Higher solar integration
References
AEMO Fact Sheet. Available from:
Javad Jazaeri et al., “Baseline methodologies for small scale residential demand response”, IEEE-ISGT Asia, Melbourne, 2016.
Javad Jazaeri et al., “Effects of Australian wall constructions on shifting HVAC electricity demand”, Energy Future, Sydney, 2016.
Acknowledgment
The author would like to thank A/Prof Tansu Alpcan and Dr Robert Gordon from The University of Melbourne.
Figure 3: Multiple House Network
Figure 4: Demand with and without Control
For more information contact:
Javad Jazaeri E:
LinkedIn
ORCID