iafrica.com, Thu, 15 Jan 2015 11:17 AM
South Africa’s national power grid will once again come under tremendous pressure this month as businesses and schools reopen after the holiday season, and will see electricity demands increase significantly. This follows the rolling blackouts experienced last year as a result of Eskom experiencing problems at its power plants and an ageing power system.
According to Vice President of Talesun Energy, Arthur Chien, the recent signing of a nuclear power cooperation deal between South Africa and Russia, which has been touted by many as a potential energy solution, is not a solution as this is a long-term strategy for the country. He says it is crucial that renewable energy projects are fast-tracked nationally, in order to counter electricity shortages in the short-term.
Chien explains that the construction of a nuclear station can take anywhere from five to seven years, whereas a wind farm takes about six months and a solar farm would take only 16 weeks from start to finish depending on its size.
“South Africa’s electricity crisis was recently highlighted at the Medium Term Budget Policy Statement in October 2014 as being one of the main factors hindering growth and investments in the country and is largely the driver behind the recent signing of the nuclear power cooperation deal between South Africa and Russia to build up to eight nuclear reactors.”
However, he says that nuclear power is not economically viable due to high costs needed to construct and maintain plants.
“The cost to build a nuclear power station varies in each country. In the United States for example, a nuclear reactor could cost around $10-billion and repairs can also amount to millions of dollars. At the Palo Verde Nuclear Generating Station in Arizona in the US, last year, a leak inside the reactor cost $10-million to $15-million to repair. Solar farms on the other hand, are far more economical as the cost to build ranges between $300-million and $500-million and all that is needed is a large piece of land which receives a vast amount of sunlight.”
Furthermore, Chien says that the running costs of electricity generated by a nuclear power plant are far higher than that generated from photovoltaic solar energy, as nuclear power plants run throughout the day and night. He added, that according to the Brookings Institution - an American research NGO - they are 75% more expensive to build and run per MW of capacity than a solar-power plant.
“Therefore continuing to operate nuclear plants prevents the large-scale integration of renewable energy into the electricity grid,” Chien said.
Chien refers to research conducted by Greenpeace, which states that nuclear power also channels investment away from renewables where investment can make a difference in fighting climate change and that renewables can replace several times more of the carbon that is leading to climate change - for the same cost as nuclear and at a far faster pace.
Chien adds that the health and environmental risks associated with nuclear power are also extremely high, especially for those who work in and live in close proximity to plants.
“Nuclear power produces toxic waste which can be detrimental to people’s health, as well as the environment. Furthermore, the risk of a nuclear accident like that of the Fukushima meltdown exists and it is crucial to consider because of the effects, including increased levels of radiation in the area and contaminated food and water.”
In addition, he points to the issue of nuclear waste, which is created from the use or reprocessing of nuclear fuel.
“This is difficult to dispose of and special remote areas have to be located and designated in order to dump the waste, whereas solar panels can be recycled. The cost to recycle solar panels are often included in the overall cost of the installation of solar panels, but this is not always the case when it comes to the disposal of nuclear waste.”
Further, he says that as nuclear waste is able to remain radioactive for either a few hours or thousands of years it is no wonder that countries such as Sweden, Italy, Belgium and Germany have started to phase nuclear power stations out, and countries such as Austria and Spain have enacted laws to cease construction on new nuclear power stations.
“The recent 2014 World Nuclear Industry Status Report notes that the use of renewable energy will increase rapidly and that investment in renewable energy will prevail and will ultimately surpass investment in fossil fuel power stations and nuclear power plants.”An indication that South Africa is heading in the right direction to overcome the energy crisis by means of an environmentally friendly, safer and more economical way, includes the rollout of Kalkbult solar plant in the Northern Cape, a Renewable Energy Independent Power Producer Procurement Programme project, which can already produce enough electricity to be consumed by approximately 33 000 households, lessening the carbon footprint in the area."