Managing the Impact of Embedded Generation on Distribution Networks using Autonomous Smart Inverters: a South African Perspective

Author(s):  
Willem Lukas Van Eck ◽  
Bernard Bekker ◽  
Munyaradzi Justice Chihota
2014 ◽  
Vol 11 (3) ◽  
pp. 242-252 ◽  
Author(s):  
Me Stéfani Coetzee ◽  
Johannes de Wet

The study investigates the impact of changes in dividend taxes on dividend payment policies and in turn, the impact of dividend payments on share prices. An event study approach is used to analyse the share price movements before, on and after dividend announcement dates. The results for companies of which the dividend paid resulted in an increase in the dividend payout ratio were that share prices responded positively to the announcement on the announcement date and for the few days thereafter. The findings again underline the paradoxical nature of dividends and although a better understanding of the impact of dividends on South African companies was gained, the dividend puzzle remains largely unsolved.


2013 ◽  
Vol 12 (4) ◽  
pp. 457 ◽  
Author(s):  
Suren Pillay ◽  
Pieter W Buys

This article aims to consider the relevancy of (i) cap-and-trade schemes and (ii) carbon tax schemes in a developing economy context. Even though both schemes have a common goal of reducing greenhouse gas emissions, they operate very differently, each with their own set of advantages and disadvantages. Sustainable developments comprise various elements categorised in three primary dimensions environmental, economic and social. The objective of reducing greenhouse gases via the implementation of carbon tax or cap-and-trade schemes primarily addresses the environmental dimension of sustainable development. Notwithstanding the aforementioned, the impact of both schemes on the economically sustainable development, including industry competitiveness and growth, still has to be determined. In South Africa, the National Treasury made a decision to implement carbon tax as opposed to cap-and-trade schemes. In this article, the reasoning behind their decision in favour of carbon tax in the South African context is critically considered, firstly by evaluating the key characteristics between cap-and-trade and carbon tax schemes and secondly by considering the effectiveness hereof in the global context. It was found primary reason behind the favourable consideration of carbon tax was the fact the implementation thereof would be simpler using the existing taxation systems, whereas cap-and-trade would require the implementation of sophisticated mechanisms that may not provide the optimum benefit in a developing economy context.


Author(s):  
Wilna L. Bean ◽  
Nadia M. Viljoen ◽  
Hans W. Ittmann ◽  
Elza Kekana

Disasters are becoming an unavoidable part of everyday life throughout the world, including South Africa. Even though South Africa is not a country affected by large-scale disasters such as earthquakes, the impact of disasters in South Africa is aggravated significantly by the vulnerability of people living in informal settlements. Humanitarian logistics, as a ‘new’ sub-field in the supply chain management context, has developed significantly recently to assist in disaster situations. This paper provides an overview of the South African humanitarian logistics context. Even though humanitarian logistics plays a critical role in the aftermath of disasters, it extends far beyond events that can typically be classified as ‘disasters’. Therefore the implication of the South African humanitarian logistics context on future research and collaboration opportunities in South African humanitarian logistics is also discussed. Finally, two recent case studies in the South African humanitarian logistics environment are discussed.


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