A model for the estimation of residential rooftop PV capacity

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Mountain, Bruce ORCID: 0000-0002-2093-2038, Gassem, Amine, Burns, Kelly and Percy, Steven (2020) A model for the estimation of residential rooftop PV capacity. Working Paper. Victoria Energy Policy Centre, Victoria University, Melbourne, Victoria.

Abstract

Estimates of rooftop PV capacity, by region and postcode, is publicly available in Australia. However, data on individual households’ rooftop photovoltaic (PV) capacity is not publicly available. This is valuable in price comparison and research, for example analysing the impact of rooftop solar in wholesale markets and on networks. We develop a model to estimate an individual household’s rooftop PV capacity, using data on the household’s estimated annual rooftop PV exports to the grid and its volume of annual grid electricity purchases. The model relies on simulated data of hypothetical rooftop PV systems, which are then used to estimate relationships between the variables. The model was found to reliably predict PV capacity in a test of 124 households where PV capacity was known. The model is useful in applications that require estimation of the relationship between annual measures of household grid electricity purchases, rooftop PV exports and rooftop PV capacity. This includes research into the impact of rooftop PV on wholesale market and network charges, and electricity price comparison. The model development and testing approach used here can be replicated in other locations but data on rooftop PV capacity for households in those locations will be needed for model verification.

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Item type Monograph (Working Paper)
URI https://vuir.vu.edu.au/id/eprint/40427
DOI https://doi.org/10.26196/5ebca99c43e1a
Subjects Current > FOR Classification > 1402 Applied Economics
Current > Division/Research > Institute for Sustainable Industries and Liveable Cities
Keywords Rooftop PV, grid exports, rooftop solar generation
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Data Citation/Attribution

Mountain, B., Gassem, A., Burns, K., & Percy, S. (2020). A model for the estimation of residential rooftop PV capacity. Victoria Energy Policy Centre, Victoria University. https://doi.org/10.26196/5EBCA99C43E1A

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