Floating solar farm

Solar power is now the cheapest source of electricity in history, according to a 2020 report by the International Energy Agency. But there is something holding this clean energy powerhouse back: space. Unlike fossil fuel power stations, solar farms need a lot of room to generate enough electricity to keep up with demand. Most solar farms are composed…

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Offshore wind energy could help solve SA’s energy woes

We still rely heavily on coal to generate electricity, but with an ageing fleet of coal-fired power plants we should perhaps start to tap into our abundant offshore wind energy resources to help address future electricity shortages. “If we were to install wind turbines at different depths off the KwaZulu-Natal and Western Cape coast, they…

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Renewable energy

South Africa’s total domestic electricity generation capacity is 51,309 MW from all sources. Approximately 91.2%, or 46 776 MW, comes from thermal coal power stations, while 4 533 MW is generated from renewable energy sources. Eskom, the state-owned utility, dominates the power sector. South Africa experienced scheduled power cuts for short periods in 2018 and…

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Weights show the way to cheap stored power

New ways to generate renewable electricity will offer cheap stored power and a solution to balancing supply and demand. Finding effective ways to store energy until it’s needed is a major obstacle for the renewable electricity revolution, but two new mechanical systems mean cheap stored power could soon be widely available. Cheaper than batteries, both…

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Science can double the solar dividend

Researchers have found three new ways to double the solar dividend, making the sun work harder and deliver more to the renewable economy. A new, translucent material made of little more than silica and air can double the solar dividend, collecting solar heat and raising temperatures to 200°C, delivering new ways to heat homes or…

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Renewabe energy

New studies form UCT suggests that South Africa should transition from nuclear power plants to cleaner renewable energy. The transition could mean cheaper and a more reliable energy source, as load shedding has increased significantly. Research conducted by the Inclusive Economic Development Program at the University of Cape Town’s Energy Research Centre, suggests the future…

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Floating solar farm

From the ongoing issues at Eskom to the chemicals being sprayed and the high energy needs of farms, the agricultural sector is looking to become more financially and environmentally sustainable through green energy solutions like the first commercial floating solar farm in Africa. On 1 March 2019, media personnel as well as individuals from trade…

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Solar pumps

The use of solar borehole pumps is common all over South Africa and solar pumps for the future is a given. Famers have been using solar pumps for many years, however there was a steep increase in the use of solar pumps over recent years. The most important reasons for this are: The global expansion…

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Apple pack house

Eskom, the national (and sole) electricity provider in South Africa has embarked on a programme of load shedding (planned power outages) as a result of maintenance on the grid. Such power outages are not new, but previously they’ve usually occurred in winter at times of high electricity demand. These electricity cuts is a great irritation…

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