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The growing need for competition in the utility and energy markets and South African government's policy on the inclusion of Distributed Generation otherwise known as Embedded generation (EG)s in the future generation mix in South Africa will potentially mean that the numbers of generators being connected within the utility distribution networks will increase significantly. In March, 2009, the National...
Recently hybrid power systems (HPSs) consisting of integrated operation of two or more different types of energy sources and storage devices are being deployed for rural electrification or electrification of remote areas in many countries across the world. This is seen as a cost effective solution in contrast to extending the utility grid in remote areas. The types of upcoming renewable and low-carbon...
This paper presents a case study on the transient performance of a typical sub-transmission network in Namibia in relation to grid integration of wind energy. The authors focus on the relative impact of two wind generator technologies, viz. direct-driven synchronous generator (DDSG) and doubly-fed induction generator (DFIG). Important aspects investigated are the impacts of penetration levels (generation...
Renewable Power Generation systems are currently preferred for clean power generation. However due to their intermittent and unpredictable nature, energy storage needs to be used to ensure that the load is met at all times. There are many possible options for energy storage and the most popular and technologically matured option, batteries, is the subject of this paper. This paper explores the importance...
This paper reports on an overview of the current electricity situation in Namibia that renders it necessary for capacity expansion of electricity generation in order to meet the country's abounding electricity needs. A discussion of the efforts made by the Namibian national power utility, NamPower and the country's government will be presented in the paper, followed by an abbreviated review of on-going...
Renewable and nonconventional distributed energy resources (DERs), such as, wind, solar PV, microturbines, fuel cells, diesel generators etc. are gradually becoming more popular as energy efficient and low-emission energy sources. Recent deregulation initiatives in power and energy industry are currently influencing company decisions regarding the construction of new generation plants and transmission...
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