You are currently browsing the category archive for the ‘EDI’ category.

I have great pleasure in welcoming you to the 24th AMEU Technical Convention here at ICC East London, hosted by Buffalo City
Metropolitan Municipality. I trust that you will enjoy your time with us and that the AMEU convention programme for the next three days and the affiliate’s sports day will fulfill all your expectations. I want to thank the 2013 convention team for their effort in ensuring that this event is a resounding success, taking into account the increased challenges year by year to keep up with the standards set by our predecessors… (more)

It is truly a great honour and privilege to welcome all of you to the beautiful Buffalo City Metropolitan Municipality, which holds its place in the country’s history as having been named after a river (Buffalo River), at whose mouth lies the only river port in South Africa. That we have chosen Buffalo City Metropolitan Municipality to host this year’s technology convention is quite fitting with the theme of the conference which seeks to focus our attention to how best municipal electricity utilities can support South Africa’s infrastructure and service delivery objectives. Buffalo City, like many municipalities across the country, is facing a number of infrastructure and service delivery challenges. These are hindering its ability to increase its contribution to the country’s
economic growth and providing a better life for all. This is after all, part of the reason we exist… (more)

A good working relationship has been established between the Department of Energy (DoE) and the AMEU, and this longstanding relationship is appreciated. The important role that the AMEU is playing, not only in keeping the lights on at a municipal level, but also as a professional association that is operating on different levels within the energy environment, is recognised and valued… (more)

On behalf of the National Energy Regulator of South Africa, NERSA, it is my pleasure and honour to be given the opportunity to say a few words at this Convention under the theme of “Supporting SA infrastructure and service delivery objectives.” This is indeed an important theme to explore over the next three days, particularly in light of the current infrastructure development programmes on which our country has embarked upon as well as quality of supply challenges as they are being experienced by customers. It is true that almost twenty years into democracy, the country still faces the triple challenges of poverty, unemployment and inequality. The country still remains a highly unequal society where too many people live in poverty and very few work. To eliminate poverty and reduce this inequality, there is an urgent need to grow the economy faster and in ways that benefit all South Africans… (more)

It gives me great pleasure to address you on this important occasion of your convention, assembling as it does during the important period in our country when we have resolved to make the important and yet decisive turn towards more meaningful, radical and faster economic transformation… (more)

South Africa’s electricity supply industry stands at the threshold of critical transformation. This moment presents an opportunity for innovation to improve service delivery and to enhance industry sustainability. However, it also requires important decisions to be made for the optimal deployment of available resources… (more)

A disaster can be defined as a progressive or sudden, widespread or localised, natural or human-caused occurrence which causes or threatens to cause death, injury or disease, damage to property, infrastructure or the environment, or disruption of the life of a
community and is of a magnitude that exceeds the ability of those affected by the disaster to cope with its effects using only their own
resources… (more)

eThekwini Municipality’s integrated development plan includes a quality living environment programme. Asset management is included in this programme. The integrated asset management plan includes the management of electricity, water and sanitation, roads, transport, parks and leisure, stormwater, solid waste and property and buildings assets… (more)

Whether they are called cities or towns or municipalities, local government organisations of all forms around the world shoulder the same responsibility to provide essential services to their constituents. Amid flat or shrinking budgets, local governments today are expected to accomplish more with fewer resources. Municipalities are under pressure to rollout services to more constituents while maintaining good levels of service, but they often struggle… (more)

An Eskom-funded demand response (DR) pilot, for which Comverge provided aggregator and CSP services from 2011 to March 2013, achieved significant outcomes proving that the market is ready for DR. Municipalities, using ripple control relays, played an important role during the pilot but there is still much more value to be gained. This presentation showed key lessons learned, challenges encountered, and incremental benefits to municipalities well beyond conventional DR… (more)

This paper will cover the evolution of MV power cables over the last century and will cover some pros and cons of all the different types of insulation mediums utilised for MV power cables. In South Africa most utilities still install three-core paper insulated lead covered (PILC) cables and are considering three-core cross-linked polyethylene (XLPE) insulated cables. No utilities install three-core ethylene propylene rubber (EPR) insulated cables which are extensively utilised in the mining industries… (more)

As growing demand for electricity continues to stress the electrical transmission grid, many transmission lines have become thermally constrained. These constraints are due to the subsequent sag that occurs as bare overhead conductors are operated at higher loads and temperatures, due to their high coefficients of thermal expansion… (more)

China introduced ground-breaking legislation in 2005, the Renewable Energy Law of the People’s Republic of China. The “Renewable Energy Law” was a national framework to promote the uptake of renewable energy (RE) throughout the country… (more)

Most renewable generation will have the ability to either generate and/or absorb reactive power. However, that
does not necessarily mean that the plant (wind or solar) will be grid compliant. This paper will illustrate the
relationship between the plant capabilities and the grid code and identify some of the key factors that determine
if auxiliary compensation equipment is needed to obtain compliance… (more)

Embedded generation (EG) could provide many benefits in terms of reduction of system technical losses and increased load carrying capacity. EG options are being focused on by users of electricity in South Africa in order to improve energy savings and increase revenues derived from the sale of electricity… (more)

Globally the developing world is characterized by large inflows of people into urban areas giving rise to large informal settlements. In South Africa government estimates that around 10% of South Africa’s 51-million people live in un-proclaimed urban informal settlements. This equates to more than 5,1-million households. In May 2010, the President’s Coordinating Council estimated that South Africa has a housing backlog of 2,1-million housing units, affecting 12-million people in 2700 informal settlements… (more)

This paper describes GIBB’s experience and presents some of the key challenges in undertaking projects of this nature
in deep rural communities. Some of the major benefits which have arisen due to these undertakings are presented. New access to household electrification potentially affects both home and market production in ways which change the nature of work in the home and in ways that increase market labour. Providing new public infrastructure to a location may also induce employed and unemployed individuals to migrate into the area…(more)

Eskom, acting as the electricity agent of the government, through the Department of Energy (DoE) and Department of Public Enterprises (DPE), has been mandated to execute the on-going government-funded electrification programme to meet the extended goals of the Universal Access Plan… (more)

Most South African electricity utilities, especially within municipal jurisdictions, only monitor performance and compliance requirements of their business processes against the requirements of the Integrated Development Plan (IDP). Other important business aspects are ignored because they are not mentioned in the IDP… (more)

Mention the word “Medupi”, and faces go red with embarrassment, angers flare and all kinds of comments and explanations are offered. The reality is that we need additional supply capacity, that we are facing all kinds of challenges to build new power stations and implement renewable IPP solutions… (more)

Regulations have and still play a major role in the successful penetration of renewable energies in the power grid. In South Africa, the White Paper on Renewable Energy of 2003 has set a target of 10 000 GWh of energy to be produced from renewable energy sources (mainly from biomass, wind, solar and small-scale hydro) by 2013. The incorporation of these renewable technologies, especially wind and solar, can only happen through unlimited access to the power grid… (more)

Electricity utilities in Africa are faced with numerous environmental and safety challenges. Some of these include public pressure (consumer pressure, lobbying, voter preferences), new standards and legislation (Constitution, ISO14001), new business opportunities (attracting and retaining customers, reducing, re-using and recycling materials), reduction of risk (financial, legal, ecological and reputational) and ethical or moral considerations, given the current safety concerns across industries and the climate change and environmental crisis… (more)

A summary report on the investigation and proposals following an electrical incident that occurred on 11 March 2013 at a switching station in Boksburg that resulted in the injury of four council employees… (more)

The challenges of electrification of many new and existing distribution networks are at the cusp of the evolution of the smart grid. Utilities are charged with meeting network performance measures and improving network infrastructure whilst facing cost down pressures… (more)


Deploying the smart grid into the LV network creates a number of challenges relating to the sheer size, security and reliability of the network. If we are to obtain maximum benefit from the LV smart grid the network has to support both command and control as well as information retrieval. This paper examines how features such as: operations and maintenance, asset management, network planning, theft detection, customer communications, tariff structures, load management and matching impact LV smart grid networking requirements… (more)

Smart grids are seen as a combination of technologies, not just the power products and systems forming the physical transportation of electrical energy. Information technology such as smart meters, advanced SCADA systems, forecasting tools, business intelligence and many other examples of modern software solutions are adding smartness to the power system parts of tomorrow’s smart grid networks… (more)

As municipalities struggle with revenue collection, the issue of accurate billing and credit control is becoming more and more important. This calls for intelligent systems to help the billing team to minimise billing errors and to cope with the volume of additional customers coming online on daily basis. This paper outlines the approach adopted by City Power, a Johannesburg municipal owned entity, to address current challenges as part of the smart grid concept… (more)

It is expected that the global urban population will grow by about 44-million people every year. Of this world population 70% is expected to live in cities by 2050. This puts huge stress on resources and forces us to change the way we think and operate cities. We need to do more with less… (more)

Public policies, environmental and energy saving concerns are driving the local take-up of energy-efficient lighting. LED, or solid-state lighting solutions are becoming more and more popular, owing to their excellent levels of performance and rapidly falling prices. The lighting industry’s need for proper international standards or local standards to ensure the safety and measure the performance of LED products is obvious. As new products are being introduced rapidly, new standards are required quickly. Manufacturers claim the standardisation of performance requirements is an important first step towards fair comparison of luminaires… (more)

This paper outlines solution requirements and mobile technology best practices for the municipal sector, focusing on managing a diverse physical asset portfolio and related services… (more)

The LVSS is an end to end system that enables more efficient management and control of electricity consumption and distribution using real time information. For the purpose of demand management, the low voltage smart system (LVSS) was piloted in a residential area in the Gauteng province over the last 4 years. The intent of this paper is to explore benefit cases beyond the initial intent of LVSS and traditional utility use of smart metering systems. The focus is on consumer facing benefits and to use the system as a tool to gain more insight into user behaviour… (more)

Quality of supply (QoS) in electrical energy is important for the sustainability of a local utility. The annual budget has to be based on a realistic assumption that retailing electrical energy will realise a projected profit. Sewerage, water and others are services rendered by local utilities operating within budgets subsidised from the profit made by selling electrical energy. But selling electrical energy is in itself not sustainable if the quality does not empower the user to generate profit… (more)

Developing an understanding of the financial and economic implications of network infrastructure service levels requirements and the potential trade-offs between service levels, cost and the impact on the economy… (more)

A case study on the implementation of an integrated protection settings management system (PSMS) at City Power… (more)

This paper provides an overview of the importance of losses in a distribution transformer. Current distribution transformer loss specifications are reviewed and an evaluation of the capitalisation formula is given with regards to four utilities… (more)

Organisations in the electrical engineering environment do not always acknowledge risk factors related to specific employees’ predisposition for high risk taking behaviour that could have a negative impact on their activities. Rather, organisations concentrate on structuring their engineering environment and activities to comply with health and safety (H&S) legislation in the belief that such compliance could afford a guarantee against incidents… (more)

Wrong labeling/markings were identified as one of the causes of industrial accidents where property is damaged and/or people are injured or have lost their lives… (more)

This paper looks at the dangers and hazards of entering and working in live substations and enclosures. It looks at some specific examples and incidents and the reasons why persons entering these areas must be trained and deemed competent to work in a substation unsupervised. It looks at the pre-entry requirements, as well as identifying potential or actual dangers and hazards and legal requirements… (more)

The life of a responsible person, in terms of the Occupational Health and Safety Act (OHSA), General Machineries Regulations (GMR), can sometimes get quite nerve wracking when not only the requirements of the OHSA has to be adhered to but also the requirements of other legislation such as the Promotion of Administrative Justice Act (PAJA). The first deals with safety of people and second deals with the rights of people and sometime these requirements come into conflict… (more)

Many countries are still coming to terms with the sudden and debilitating financial crisis of 2008. Some governments have been able to stave off the world recession by pouring reserve funds into public works programmes, but these coffers are now empty… (more)

The Government Gazette 31250 requires that smart meters be installed for all customers consuming more than 1000 kWh/month by 1 January 2012. Many municipalities have installed such meters and implemented TOU tariffs. Many of these tariffs leave much to be desired for. This paper will illustrate the requirements and features of a quality domestic/small commercial TOU tariff… (more)

Transformers form an integral part of the power system value chain. They are used at different voltage levels throughout the power delivery process, starting from step-up operation at the generation power plant and going through various step-down operations to different voltage levels along the way down to distribution voltage levels… (more)

The South African electricity distribution industry is confronted by numerous and significant challenges that impact directly on the sustainability of the industry and the ability to provide a reliable service to electricity customers. While the distribution grid served the country well in many aspects, the electricity grid is aging, outmoded, and stressed… (more)

Smart metering (SM) systems are rolled out at a high rate internationally for various reasons. It is however true that SM as a component of smart grids will play a significant role in the electricity distribution industry to enhance energy efficiency and support revenue management. This paper elaborates on the functionality of SM to support various aspects of distribution management in the African context… (more)

The principles of the technology of today’s power grids have not changed significantly in the past 100 years. Electricity is a product that has to be generated at the time of need. The level of power generation is set to match the instantaneous demand. With the constraints in power resources, this has to change, hence the development of the smart grid… (more)

Renewable energy (RE) facilities need to conduct compliance studies, in order to prove that their facility has the necessary capability in order to meet the currently published grid code, as well as to ensure that the farm does not contravene the existing NRS and other published standards… (more)

A range of national and local policies and strategies promote energy efficiency and renewable energy in response to the electricity crisis and national climate change commitments. This trend is not only local, but global. In South Africa this is taking place in the context of rapidly decreasing renewable energy costs and simultaneous rapidly increasing grid electricity costs resulting from the new build programme… (more)

Rural electricity distribution is less reliable and more expensive to operate than urban networks and generates less revenue. Long overhead line lengths, inherent high fault frequency and the often considerable time taken to find and access faults result in long outage durations, poor regulatory performance and, often, financial penalties… (more)

Mobile technology has taken the world by storm and is developing further every day. The capability of transferring data over GSM networks at a relatively low cost has also revolutionised the world even more than the industrial age and there is no end to the possibilities yet. New ideas and new processes are now possible in the field of infield data collection… (more)

According to NRS049-1 (rev.1, 2010) for advanced metering infrastructure, the communications medium that connects devices in the system downstream of the data concentrator can either be power-line carrier (PLC) or wireless radio frequency (RF). These devices comprise single and three-phase metering, appliance control relays and customer interface units… (more)

Share this blog page

Bookmark and Share

Enter your email address to subscribe to this blog and receive notifications of new posts by email.

Join 48 other followers

Blog calendar

April 2019
« Jan    

RSS EE Publishers on Twitter

  • An error has occurred; the feed is probably down. Try again later.