Photovoltaic energy competitiveness and risk assessment for the South African residential sector

Type Journal Article - Progress in Photovoltaics: Research and Applications
Title Photovoltaic energy competitiveness and risk assessment for the South African residential sector
Author(s)
Volume 24
Issue 12
Publication (Day/Month/Year) 2016
Page numbers 1577-1591
URL https://dspace.lboro.ac.uk/dspace-jspui/bitstream/2134/21080/1/PV_Competitiveness_in_South_Africa​_Betz_&_Rowley_2016.pdf
Abstract
The establishment of new photovoltaic (PV) markets in emerging economies represents a
business development opportunity for expansion outside traditional energy markets. Appropriate
assessment of PV market competitiveness is thus necessary in order to inform policy and regulatory
development, and in order to manage risks related to investment. This paper presents an evaluation
of PV energy competitiveness using a case study of the emerging residential PV market in South
Africa. Competitiveness is defined in light of the risks associated with the financial performance of
domestic grid-connected rooftop PV considering the current market status together with three
proposed business models, namely net-metering, net-billing, and an energy savings performance
contract framework. Financial performance is evaluated in terms of a socket parity evaluation
together with a discounted net cash flow analysis. Investment risk assessment was facilitated using
a Monte Carlo simulation. The results indicate the highest potential profitability for the energy
savings performance contract model, which includes PV system ownership by an energy services
company. It is also shown that appropriate application of risk modelling has the potential to inform
decisions by investors and policy makers alike that result in improved policy and business solutions
that are able to support increased residential PV energy market competitiveness without the need for
explicit subsidy frameworks.

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