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Guidance on Implementing Renewable Energy Systems in Australian Homes

Peter Horan, Mark B. Luther and Hong Xian Li
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Peter Horan: School of Architecture and Built Environment, Deakin University, Geelong, VIC 3220, Australia
Mark B. Luther: School of Architecture and Built Environment, Deakin University, Geelong, VIC 3220, Australia
Hong Xian Li: School of Architecture and Built Environment, Deakin University, Geelong, VIC 3220, Australia

Energies, 2021, vol. 14, issue 9, 1-24

Abstract: The purpose of this paper is to examine several real house cases as renewable energy resources are installed. It is an empirical study, based on first principles applied to measured data. In the first case presented, a PV solar system has been installed and a hybrid vehicle purchased. Battery storage is being considered. Smart Meter data (provided in Victoria, Australia) measures the electrical energy flowing to and from the grid in each half hour. Missing is the story about what the house is generating and what its energy requirements are through each half hour interval. We apply actual (on site) solar PV data to this study, resolving the unknown energy flows. Analysing energy flow has revealed that there are five fundamental quantities which determine performance, namely energy load, energy import, energy harvesting, energy export and energy storage. As a function of PV size these quantities depend on four parameters, easily derivable from the Smart Meter data, namely the house load, the night-time house load (no PV generation), the rating of the solar PV system and the tariffs charged. This reveals most of the information for providing advice on PV array size and whether to install a battery. An important discovery is that a battery, no matter what size, needs a PV system large enough to charge it during the winter months. The analysis is extended to two more houses located within 5 km for which detailed solar data is unavailable.

Keywords: solar PV; battery; costs; CO 2 emissions; electric vehicle (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2021
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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