
March 30, 2025
Below is an important article on nuclear power for Africa by a colleague of mine .
Published in Nuclear Network Africa, South Africa, March 25.
Yes, Nuclear for Small Countries in Africa!
By David Cherry
Africa is now on a path toward industrialization. There can be no sovereignty without the national power that comes from industrialization, and that’s where nuclear power comes in. It is no accident that the first five BRICS nations all have nuclear power plants—Brazil, Russia, India, China, South Africa. It is no accident that the other five full BRICS members either have nuclear power (Iran, UAE), or are building their first plant (Egypt), or have concrete plans for nuclear power (Ethiopia, Indonesia).
Only yesterday it was unthinkable that nuclear power could be available to most African nations. But today, nuclear power is no longer the privilege of the industrialized countries. Technological apartheid has been largely defeated.
The up-front expense of a nuclear power plant is still a consideration, however. Doesn’t this expense restrict nuclear to African nations with relatively large budgets? On the continent today, only South Africa has a functioning nuclear power plant. Egypt’s large plant—comprising four reactors, each producing 1200 megawatts of electricity (1200 MWe)—is now under construction.
And the other countries? Small modular reactors (SMRs) and microreactors give most small African countries the nuclear option. Because these reactors are small and their major components can be produced on an assembly line, their price is within reach of most countries. With these small reactors, the revenue from the first installed reactor can help pay the cost of adding more units on the same site.
There are about 80 SMRs designed or being designed worldwide. Russia and China have SMRs in operation. South Africa’s HTMR-100 is fully designed and ready to be built.
A reactor that produces 20 to 300 MWe is called a small modular reactor (SMR) and one under 20 MWe is a microreactor. Nuclear reactors produce a significant amount of heat that can also be used, but SMRs and microreactors are defined in terms of their electric output. In Japan, Toshiba has its 4S model that will produce 10 MWe, while in the U.S. the TVA model is designed for 15 MWe. There are even smaller ones. The South African HTMR-100 will put out 35 MWe. Other sizes include Russia’s RITM-200 at 55 Mwe, now operating; and in China, two SMRs are now operating: the ACP100 producing 125 MWe, and the HTR-PM, 210 MWe.
Different designs are suitable for different conditions. Some use water to keep the reactor sufficiently cool and must therefore be near a large water body. Designs that use circulating helium for cooling can be placed inland.
But the cost of the reactor itself is not the only problem. No power plant can function if the electricity network lacks the capacity to deliver the electricity to users. Another problem is having enough trained technicians for plant operation. For both problems, the SMR provides relief. The first SMR will not need a large staff, and it can grow as more reactors are added. As for transmission capacity, the first SMR may not require much upgrade of the network.
Why Nuclear and Why Now?
For now, many African governments will expand their use of coal and hydro-power and possibly add natural gas, because even small reactors are not mail-order items that will arrive next week. But now is the time to start along the path to nuclear because of its longer lead time. These other sources will still be important in the energy mix long after nuclear is first up and running.
But why, then, is nuclear necessary? Nuclear is the energy source of the future because uranium and thorium are vastly more energy dense than any conventional source, especially solar and wind. For example, a kilogram of uranium-235 contains two or three million times the energy of a kilogram of coal or oil. (Imagine avoiding the cost of the constant flow of coal-laden trucks from mine to power plant. Nuclear fuel lasting years may weigh only a few kilograms.) Not only that. A nuclear power plant does not have a large footprint compared to any other power plant of equivalent output. These two factors together are the “energy-flux density” of the given combination of fuel and technology. Higher energy-flux density indicates greater efficiency and lower cost per megawatt.
Africa is now on a path toward industrialization. There can be no sovereignty without the national power that comes from industrialization, and that’s where nuclear power comes in. It is no accident that the first five BRICS nations all have nuclear power plants—Brazil, Russia, India, China, South Africa. It is no accident that the other five full BRICS members either have nuclear power (Iran, UAE), or are building their first plant (Egypt), or have concrete plans for nuclear power (Ethiopia, Indonesia).
David Cherry is an editorial staff member of the Executive Intelligence Review in Washington, D.C., and was formerly of 21st Century Science & Technology magazine and the International Journal of Fusion Energy.
Lawrence Freeman is a Political-Economic Analyst for Africa, who has been involved in economic development policies for Africa for 35 years. He is a teacher, writer, public speaker, consultant on Africa, and an analyst of global strategic relations. Mr. Freeman strongly believes that economic development is an essential human right. He is the creator of the blog: lawrencefreemanafricaandtheworld.com, and also publishing on: lawrencefreeman.substack.com, “Freeman’s Africa and the World


