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Selected Publication:

Mayr, D; Schmid, E; Trollip, H; Zeyringer, M; Schmidt, J.
(2015): The impact of residential photovoltaic power on electricity sales revenues in Cape Town, South Africa
UTIL POLICY. 2015; 36: 10-23. FullText FullText_BOKU

In South Africa, electricity is provided as a public service by municipalities. The combination of (a) rising electricity rates, (b) decreasing photovoltaic technology costs, and (c) a progressive tariff system (under which wealthier households support low tariff rates for indigent residents) leads to incentives for high-income households to cover part of their electricity demand by self-produced photovoltaic (solar) electricity. This development is simulated with hourly load profiles and radiation data, and an optimization model for a case study in Cape Town through the year 2030. Results indicate that the majority of higher-income residents are incentivized to invest in photovoltaic power production by 2020 and additionally use home battery systems by 2028. This leads to a steadily increasing gap between revenues and expenditure needs in the budget of the municipality. The budget gap can be reduced by replacing the energy-based tariff with a revenue-neutral fixed network-connection fee implementation of which is particularly effective in reducing incentives to invest in storage. (C) 2015 Elsevier Ltd. All rights reserved.
Authors BOKU Wien:
Mayr Dieter
Schmid Erwin
Schmidt Johannes

Find related publications in this database (Keywords)
South Africa
Residential photovoltaic
Public revenues

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