Posts by Dionne Loreti

Load Shedding Eskom 2021

JOHANNESBURG – Eskom has confirmed that it will implement stage four load shedding from 2pm on Wednesday until 10pm in the evening after which it would revert to stage two cuts.

This comes after the power utility implemented stage two power cuts on Wednesday morning citing delays in returning generation units to service at Kusile, Tutuka, Duvha, Kendal and Koeberg power stations

Read more

Prolonged NUM strike will threaten Eskom coal supplies

Over 30 000 NUM members went on strike on Sunday after NUM and affected coal companies-Anglo Coal, Glencore, Delmas, Exxaro Coal, Kangra and Msobo- could not reach an agreement over NUM’s demand for R 1000 for the lowest category and 14% for the artisans, miners and officials.

Spokesperson Khulu Phasiwe said in the event of the strike continuing for too long, Eskom could tap into the coal reserves kept by the various mining companies. “However, that is not ideal because we will have to truck the coal. Secondly, it will be costly. Hopefully the strike will end very soon,” Phasiwe said.

Low stockpiles and poor coal at Eskom power stations were among the main reasons for the 2008 power supply crisis. Immediately after the 2008 power shortages Eskom took steps to increase coal stockpiles from under 10 days. These included buying coal, at relatively high prices, on short-term contracts.

The coal strike could, therefore, bring back days of low stockpiles.coal

Read more

Universal electricity access by 2030

South Africa had committed to a new global treaty on climate change. Upscaling renewable energy with the goal of mitigating carbon dioxide emissions was expected to top the agenda. “We can’t continue as if it is business as usual. Lack of energy is a major constraint in Africa. We have to look at the renewable-energy value chain and focus on the interconnectivity of the continent,” said Energy Minister Tina Joemat-Pettersson.

Read Further

Read more

Eskom requests a further 16% increase

Nersa’s Charles Hlebela confirmed receipt of the application, which the regulator had calculated could, should it be approved, result in a tariff increase of 16.61% from April 1, 2016, inclusive of the 8% already sanctioned for the year. In February 2013, Nersa approved yearly increases of 8% for the five-year MYPD3 period, having received an application from Eskom for yearly increases of 16%.
Read Further

Read more

Energy should be accessible to all, but it should be sustainable

Governments need to deliberately decide that their renewable-energy strategies are energy access strategies and that these programmes are designed to not be grid-based, but rather based on a modular decentralised strategy to have many grids supplying energy where it is needed.

Delegates pledge universal electricity access by 2030, as Sairec wraps up South Africa to host global renewable-energy conference in October S Africa set to host international renewable-energy conference She noted that the rich needed to pay for the transition to clean energy, allowing the poor to continue using cheaper energy sources. “The entire world, but, more importantly, the rich world, needs to do a lot more to cut runaway greenhouse-gas emissions,” she said, noting that those attending the United Nations Climate Change Conference in Paris needed to “walk the talk” and have real ambition to change the current climate situation. Narain further said renewable energy could assist in making affordable energy sources available to large numbers of people. “We have a challenge of reducing global pollution, moving towards a greener economy and not losing sight of the fact that we need to make electricity accessible. The equity challenge is as big a challenge as the sustainability challenge.”

>Mistra executive director Joel Netshitenzhe highlighted that the institute went deep below the surface of the green economy and examined some of the reasons behind South Africa’s slow progress in moving to a low-carbon economy. The book acknowledges the impressive progress that South Africa has made in its procurement process for renewable energy. Yet, it also warned that long-term sustainability of such programmes depended on increasing socioeconomic impact, especially among communities previously marginalised in the country’s historical socioeconomic evolution. article

Read more

South Africa’s Renewable ramp-up “impressive”

Between January and June this year, wind and solar photovoltaic (PV) power plants contributed 2% of the 114.1 TWh of electricity sent to the national grid, a material scale-up from the position of previous years.

Bischof-Niemz says while the contribution may still seem small it is in fact impressive, particularly in light of the notoriously slow evolution of energy systems. “Energy systems have very long lifetimes, we are talking decades, up to centuries,” Bischof-Niemz says, noting that coal-fired power stations produced 99.9 TWh during the period. The rise in the contribution of renewables has been underpinned by government’s internationally acclaimed Renewable Energy Independent Power Producer Procurement Programme (REIPPPP).

Following four REIPPPP bid windows around 6 300 MW of renewables capacity has been procured since 2011, of which 1 800 MW was operational during the January to June period. “South Africa has managed to introduce 2% of its entire electricity demand from renewabl s – that is a very steep ramp-up. If you compare the nearly 1% coming from solar PV, for instance, we have already surpassed the relative performance of the US, where the share of solar PV in the entire American electricity system is currently 0.5%.” Bischof-Niemz says the introduction of renewables has also had positive financial spin-offs. A CSIR study calculates that South Africa’s wind and solar PV projects generated nearly R4-billion more in net financial benefits during the first half of 2015. Cumulative savings of R8.2-billion during the period were partially offset by the tariff payments to renewables independent power producers (IPPs) of R4.3-billion. The model shows that a total of R3.6-billion of the savings have been derived from the replacement of diesel and coal fuel costs, with a further R4.6-billion in benefits arising as a result of the wind and solar power plants ensuring the avoidance of 203 hours of ‘unserved energy’. The study has also found that during 15 days from January to June 2015 the contribution from solar and wind either prevented or delayed load-shedding, or reduced its severity. During the period, South Africa experienced more than 80 days of rotational power cuts. The net financial benefit ascribed to the renewables projects during the period has also arisen notwithstanding the fact that tariffs from the first two bid windows (those plant currently operating) are substantially higher than what has been achieved in subsequent bidding rounds.
“The new wind and solar PV projects will be substantially cheaper than the projects that are already online,” Bischof-Niemz notes, adding that the projects of these two technologies have also already quantifiably changed the shape of the residual load, with base-load demand falling 400 MW over the period from August 2014 to July 2015. Therefore, as renewables ramp up further, it will be important for policymakers to find ways of facilitating the introduction of “flexible power generators”. “In addition to that, we should try to find a way to bring reserves and balancing power into some form of a procurement programme, which would help as the penetration of fluctuating renewables rises,” he argues. But the IPP Office, which has been successful in procuring utility-scale renewables, should also continue with the renewables procurement, which is in a “steady state” and is beginning to tap South Africa’s “impressive” solar and wind resources. “What we need in addition is a standard-offer-type approach for small and medium-sized power generators, including rooftop solar PV, or individual MW-class wind turbines on a farm, or 500 kW biogas plants.” Bischof-Niemz believes the standard-offer tariff can be derived using prices arrived at through the REIPPPP process, which could give comfort to policymakers that they are not paying over the odds to the smaller generators. He also believes that, with the introduction of the Ingula pumped-storage scheme in the coming few years, South Africa will be able to aggressively deploy more wind and solar for another decade before it faces serious storage problems. The REIPPPP is one of the fastest growing renewable energy programme’s in the world and South Africa aims to introduce 17 000 MW of renewables by 2030. The 999 MW Ingula pumped-storage scheme, which can effectively store energy for release during peak-demand periods, is expected to be introduced through three units between April and August 2016. “There are many ways to make the electricity system more flexible, including dispatchable demand. Therefore, we don’t need to deploy large-scale battery resources now. We can wait ten years until they are cheaper and allow others to pay the school fees. The business case for batteries today from a system perspective lies in the provision of balancing power and other ancillary services,” Bischof-Niemz concludes.

Read more

Submission to NERSA in response to Eskom’s 25,3% increase application

Eskom has submitted an application to the National Energy Regulator of South Africa (NERSA) to increase the electricity price by a further 12,61% over and above the 12,69% increase that came into effect on 1 April this year, making it a total of 25,3% for the 2015/16 financial year ending 31 March 2016.

Chris Yelland, investigative editor at EE Publishers, has made a comprehensive submission to NERSA in response to Eskom’s application for a “selective reopener” of NERSA’s multi-year price determination (MYPD 3), for the period 1 April 2015 to 30 March 2018

In his submission, Yelland states that the question of affordability to the customer, be it to ordinary citizens or to the productive economy, is completely ignored by Eskom in its application.

>He further states that by Eskom’s own admission the additional (unbudgeted) costs of diesel and STPPP energy costs that the utility wants to pass through to the customer in the tariff result directly from its own failings. Therefore, Yelland says that by no stretch of the imagination can such additional costs be considered as prudently and efficiently incurred, and they should therefore be rejected by NERSA.

Furthermore, Yelland says the extra diesel and STPPP costs claimed by Eskom are grossly overstated and neglect all corresponding offsetting cost reductions that are applicable. In an example in his submission, Yelland recalculates the net diesel and STPPP costs taking these offsets into account, and shows that the net cost is in fact a small fraction of the amount that Eskom has claimed.

Yelland also points out that the assumption by Eskom that additional diesel costs are the most cost effective solution to meeting generation capacity shortfalls in 2016, 2017 and 2018, is also almost certainly not correct.

He says that no alternative mitigation techniques (such as integrated demand side management, demand market participation, power buy-backs, increased renewable energy procurements, power ships, conversion of OCGT diesel fuel to imported liquefied natural gas, increased industrial cogeneration, etc.) are presented or considered in Eskom’s application for a “selective reopener” to MYPD 3.

It would appear therefore that Eskom has simply chosen, in its own interests, to maximise its price increase by including the most expensive option of all (diesel) for the next three years, even though it is likely that cheaper options will almost certainly be used in 2016/17 and 2017/18.

According to Yelland, the meaning of the term “selective reopener” in Eskom’s mind therefore becomes clear: Eskom gets to select the highest possible costs that should be passed through to the customer for the next three years; and Eskom also elects to ignore any cost offsets that may benefit the customer.

As such, Yelland says that Eskom’s application to NERSA for a “selective reopener” of MYPD 3 can be seen not only to be deficient, but also dishonest, and should be rejected.

Read more

Joburg total blackout

A union’s threat of causing a “total blackout” in the greater Johannesburg area this month would be an act of sabotage, City Power said on Thursday. The South African Municipal Worker’s Union told the City of Johannesburg’s power utility that it would go on a full-blown strike on Monday October 19, resulting in “a total blackout of Johannesburg and all its suburbs”.The union said City Power failed to address issues relating to corruption levelled against its managing director, Sicelo Xulu. It added that board chairperson Frank Chiksne had “failed to act on corruption allegations, which are happening under his watch”.
It would be the first time employees have brought darkness to the economic hub of South Africa.

Total black out

Read more

New Global study highlights rising competitiveness of Wind, Solar

A new levelised cost of electricity analysis by Bloomberg new Energy Finance shows that onshore wind has become competitive with gas and coal in some parts of the world and that the gap between fossil-fuel production and solar photovoltaic (PV) facilities has also narrowed.

BNEF shows that the costs associated with onshore wind and solar PV plants have reduced when compared with the first half of the year, while the costs of gas-fired and coal-fired generation have increased. ” Our report shows wind and solar power continuing to get cheaper in 2015, helped by cheaper technology but also by lower finance costs. Meanwhile, coal and gas have got more expensive on the back of lower utilisation rates and, in Europe, higher carbon price assumptions following passage of the Market Stability Reserve reform.”

The report has been published at the same time as South Africa’s renewable- energy progress has come under the spotlight, with the Department of Energy releasing a ‘State of Renewable Energy in SA’ report that shows that the country will have 6 236 MW of renewable-energy generation by 2019. The study also shows that the prices of renewable energy have been falling over the past four years, with the average kilowatt-hour tariff dropping, 68% since 2011.

Levelised costs take account of the cost of generating a marginal MWh of electricity, as well as the upfront capital and development expense, the cost of equity and debt finance, as well as operating and maintenance fees. ” Generating costs continue to vary greatly from region, reflecting influences such as the shale gas boom in the US, changing utilisation rates in areas of high renewable’ s  penetration, the shortage of local gas production in East Asia, carbon prices in Europe, differing regulations on nuclear power across the world, nd contrasting resources for solar generation,” energy economics analyst Luke Mills outlines. In the UK and Germany, onshore wind is now cost-competitive with both gas-fired and coal-fired generation, once carbon costs are taken into account, the report shows. id:3182solar wind power

Read more

Move towards 100% Renewable energy by 2050

Move towards 100% renewable energy by 2015, says Greenpeace.” With real political will, we can get there.”

Greenpeace research in collaboration with the German Aerospace Centre, The Energy (R) evolution Scenario 2015, had shown that future savings in fuel costs would more than cover the $1-trillion a year investment needed to move towards 100% renewable energy by 2050.   Because renewables did not need fuel, savings over the same period were expected to amount to $1.07-trillion a year.   Naidoo advised Sairec delegates that carbon dioxide (CO2) emissions were deeply affecting climate change.   “We have to recognize that we are seriously running out of time, especially in the least developed countries in Africa and small islands…We are right on the edge.”

He said renewable energy was a way out and was poised to create jobs and opportunities.   The Greenpeace research had shown that more jobs would be created in the energy sector through renewables – with the solar industry alone forecast to employ as many people in future as the coal industry does today.

Within 15 years, renewables’ share of electricity could triple from the current 21% to 64%. Almost two-thirds of global electricity supply could come from renewable energy. Even with the rapid development of countries like Brazil, China and India, CO2 emissions could fall from the current 30 gigatonnes a year to 20 gigatonnes a year by 2030, noted the research report.    Further, the solar photovoltaic industry could employ 9.7-million people by 2030, more than ten times as many as it did at present, while jobs in wind power could grow to 7.8-million over the same period.

Naidoo, a South African, pointed out that the country needed a clear regulatory framework and incentives for the financial community.   “We need to turn every roof of every home, school and university into an energy generator but also an income generator. If we had feed-in tariffs, there would be an incentive to get returns. It’s within our grasp to do so. We need to move from rhetoric to change.” Print Send to Friend 2 1 He said governments needed to encourage banks to lend in a much more vigorous way to finance such renewable energy projects.   “Banks are waiting. They want that direction and it is important that we give it as soon as possible.”   He also called on governments to pass enabling legislation for the renewables industry to thrive.

It is our preference that if you wish to share this article with others you should please use the following link: towards 100% renewable energy

Read more