The sunshine state: implications from mass rooftop solar PV take-up rates in Queensland

Paul Simshauser (), Tim Nelson and Joel Gilmore

Cambridge Working Papers in Economics from Faculty of Economics, University of Cambridge

Abstract: One of the most pronounced trends in Australian electricity markets over the past decade has been the rapid take-up rate of rooftop solar PV by households. In this article, we analyse the cause and effects of rooftop solar PV in the NEM's Queensland region, which has the highest household take-up rate in the world. Initially sparked by a combination of sharply rising electricity tariffs and over-lapping rooftop PV subsidies, economic considerations soon took over. More than 43% of households have a behind-the-meter solar unit. Benefits to participating households are significant, while hidden costs remain for non-participants. Impacts on utilities are mixed, with retail supply businesses most adversely affected. Rooftop PV has displaced ~1500MW of base and peaking plant, equating to ~$3bn investment. Yet despite world-leading rates of rooftop solar, Queensland's grid-supplied system peak demand continues to rise, albeit shifted to later in the evening.

Keywords: rooftop solar PV; electricity utilities (search for similar items in EconPapers)
JEL-codes: D25 D80 G32 L51 Q41 (search for similar items in EconPapers)
Date: 2023-01-12
New Economics Papers: this item is included in nep-ene and nep-reg
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Working Paper: The sunshine state: implications from mass rooftop solar PV take-up rates in Queensland (2022)
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Persistent link: https://EconPapers.repec.org/RePEc:cam:camdae:2305

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