Smart Air-Conditioning for Smart Grid Javad Jazaeri, PhD, Second Year, Electrical and Electronic Engineering ORCID ID: 0000-0002-5033-3001 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])

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: http://www.aemo.com.au/media/Files/Other/corporate/AEMO16839_FactSheet_NationalElectricityMarket_D6.pdf.pdf 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: mjazaeri@student.unimelb.edu.au LinkedIn ORCID