Frequently asked questions about Nuclear Power Plants

Введение

A nuclear power plant is an industrial facility that generates electricity using nuclear energy. The operation of a nuclear power plant is based on a process in which atoms are split into smaller particles, releasing a significant amount of heat. This heat is used to heat water, which turns into steam. The steam drives turbines, and the turbines, in turn, generate electricity.

Nuclear power plants are among the most important sources of electricity in the modern world. They play a key role in energy security and substantial economic growth for many countries, providing the highest volumes of electricity production with minimal carbon dioxide emissions.

(Photo from kapital.kz)

Frequently Asked Questions About Nuclear Power Plants

In Kazakhstan, the construction of next-generation nuclear power plants is being considered, featuring the most advanced technologies to meet the highest global safety standards. The international experience with these types of plants indicates that there are no significant risks.

The construction of a nuclear power plant in Kazakhstan is regarded as a crucial step towards achieving energy independence and security. The project on the shore of Lake Balkhash is aimed at preventing energy shortages in several regions of the country and reducing dependence on imports. The nuclear power plant will ensure stable electricity prices and help achieve carbon neutrality by 2060. This aligns with the country's interests and Kazakhstan's international commitments.

According to established international practice, the construction of nuclear power plants is overseen by reputable international organisations such as the IAEA and WANO, ensuring adherence to the highest safety standards and minimising corruption risks.

The selection of a contractor for the construction of the nuclear power plant in Kazakhstan will be based on economic feasibility, technological reliability, environmental safety, and compliance with international standards. The project will promote the development of the national nuclear energy sector and create jobs. This is a commercial matter rather than a political one, and the chosen company or group of companies will be responsible only for the construction, not the operation of the plant.

Kazakhstan has both scientific institutes and highly qualified specialists. At the same time, active training of personnel for NPP operation continues. To date, training of personnel for the nuclear industry in the Republic of Kazakhstan is carried out in Kazakhstani universities on the basis of 5 educational and two-diploma programmes (Nuclear Physics, Nuclear Engineering, Nuclear Physics and Nuclear Power Engineering, Theoretical Nuclear Physics). Along with this, Kazakhstan develops scientific and educational base with foreign partners. A number of documents have been signed with France, Russia and Hungary to exchange experience and improve human resources potential.

According to global practice, on average, the construction of a NPP with two units will employ up to 8,000 people, while the NPP operation phase requires about 2,000 people with higher and secondary specialised education. At the same time, plant employees with education in nuclear specialities will account for about 20% of the total personnel.

Kazakhstan is actively developing renewable energy sources, the efficiency of which depends on a combination of different factors. The stability of the energy system requires reliable permanent baseload sources, such as coal-fired and nuclear power plants. The construction of nuclear power plants is a reliable way to reduce electricity shortages, curb tariff increases, improve the environment and ensure energy independence, as the impact of coal-fired plants on the environment and human health is negative. Nuclear power is the optimal choice in terms of all parameters, including the cost of electricity.

In addition, nuclear power helps to reduce dependence on fuel imports, which helps to keep electricity prices under control. In the long term, NPP operating costs are relatively low, which also helps stabilize tariffs.

The choice of the construction site near Lake Balkhash has been under consideration since Soviet times and has now taken place in co-operation and consultation with major international organizations. The southern region is one of the largest consumers of electricity in the country, but remains deficient in its own generation capacity.

The construction of a nuclear power plant in the Almaty region will reduce this deficit, ensuring a stable and reliable energy supply to the region. This, in turn, will contribute to the development of industry, infrastructure and improve the quality of life of the population.

In autumn 2023, IAEA experts once again confirmed that there are no factors preventing the construction of NPP near Lake Balkhash.

Because of the impact of coal and gas plants on the environment and the health of the population, taking into account the growth of consumption, wear and tear of old plants and regularly imposed international restrictions on coal and gas sources, there is a critical need to introduce new solutions. In addition, the instability of renewable energy sources does not allow them to be considered as basic energy sources, which is confirmed by the experience of many countries, where reliance on renewable energy sources has led to a decrease in industrial growth and economic problems. Nuclear power is seen as a stable and "green" option for reliable in quality and favourable in price energy supply. In the context of global trends and the example of neighbouring countries such as Uzbekistan, the construction of NPPs becomes relevant for Kazakhstan to avoid dependence and lagging behind in energy development.

Kazakhstan ranks second in the world in terms of uranium reserves, about 14% of the total. Since 2009, we have become the world leader in uranium mining and produce about 40% of the world's production. The country has more than 900,000 tonnes of uranium, which provides fuel for many years to come, and modern reprocessing technologies make it possible to reuse spent nuclear fuel.

That is why international experts have long wondered why, with such reserves and scientific potential, Kazakhstan has not yet built a nuclear power plant.

A nuclear power plant with a capacity of 1 gigawatt is capable of providing electricity to a city with a population of 1 - 1.5 million people, generating approximately 50 cubic meters of radioactive waste. At the same time, a CHP plant with the same capacity will generate waste in the amount of 200 - 300 thousand tons. Thus, nuclear power plants produce significantly less waste compared to coal-fired plants, which makes them a more environmentally friendly source of energy. It is important to note that unlike coal-fired power plants, nuclear power plants do not emit waste into the air, which significantly reduces emissions of harmful substances such as carbon dioxide and particulate matter.

Waste from nuclear power plants can either be stored or recycled, depending on their type and technology. For example, spent nuclear fuel is not considered waste, as it can be reused as an energy source.

In the future, special reactors will be able to destroy especially dangerous radioactive elements, which will make waste less dangerous. Perhaps thermonuclear fusion technologies will be used for this.

Thus, the waste will be processed and stored according to international standards, which minimizes risks to the environment and human health. Kazakhstan has extensive experience in working with nuclear materials and will comply with all safety measures.

The probability of an accident at a modern NPP is less than one in 10 million years, unlike coal-fired plants, where the risk is 80 times higher. Modern NPPs have containments to prevent radiation leaks. The expected environmental and health impacts will be much lower than the established norms, so the operation of NPP will not have a negative impact on nature and people, which is proved by continuous studies and observations of the population living near NPPs in different regions of the world.

The construction of NPPs in Kazakhstan will create a solid basis for Kazakhstan's energy security and independence, a serious foundation for the country's advancement to a new industrial and technological level. Moreover, "green" nuclear energy will allow our business to confidently enter foreign markets without fear of significant penalties for the use of "dirty" energy, which would significantly reduce the competitiveness of our industrial potential. All this will bring multiplier effect, create jobs, improve infrastructure, reduce emissions and ensure stable electricity prices. The NPP will also contribute to the intensive development of the region, its infrastructure, including the construction of roads, schools and hospitals.

The location of the NPP is determined by the shortage of electricity in the region. Like coal-fired plants, NPP require water for cooling, which is planned to be taken from Balkhash lake. Around NPP, favourable conditions are often created that do not interfere with everyday life; for example, cooling ponds are used for fish farming and fishing tournaments, as at the NPPs in Taiwan, Monticello and Duke Energy in the USA. At the same time, the NPP will not discharge spent water into Lake Balkhash. The cooling water that will come from Balkhash will be only 0.32 per cent of the lake's natural evaporation. The water used at the NPP will not come into direct contact with the reactor.

Kazakhstan reviewed technical and commercial technology proposals from 6 global nuclear technology suppliers, including small modular reactors from the American company Nuscale Power (Nuscale reactor) and the American-Japanese company General Electric-Hitachi (BWRX-300 reactor). There were no other offers from Japanese companies.

For the first nuclear power plant in Kazakhstan, preference is given to already proven reactors with positive operational experience. The shortlist of potential suppliers includes CNNC (PRC, HPR-1000 reactor), Rosatom State Corporation (RF, VVER-1200 reactor), KHNP (South Korea, APR-1400, APR-1000 reactors) and EDF (France, EPR reactor-1200).

At the same time, it should be noted that small modular reactors are currently not reference reactors, i.e. they do not have operational experience. Unlike high-power reactors, most promising low-power reactors are at the stage of obtaining regulatory approval for the design or in the licensing process to obtain a construction permit. The nearest date of commissioning of the first such reactors is expected no earlier than 2030.

Therefore, these small modular reactors were excluded from the list of potential suppliers.

Nuclear Power Plants in Kazakhstan

Nuclear power plants have been considered an important economic project in Kazakhstan since the 1990s to ensure the region's energy self-sufficiency.

Since gaining independence, the construction of a nuclear power plant has become particularly necessary in the context of energy sovereignty and national security, serving as a key component of Kazakhstan’s overall security and a guarantee of the country’s future confident development.

The modern technologies planned for use in the construction of the NPPs comply with the highest global safety standards, as evidenced by international experience in operating such plants and the absence of significant risks.

The construction of a nuclear power plant on the shores of Lake Balkhash will help prevent energy shortages in several regions, reduce dependence on imports, and stabilise electricity prices. Moreover, this project plays a key role in achieving carbon neutrality by 2060, aligning with Kazakhstan’s international commitments.

The site selection for construction was driven by the energy deficit in the southern regions of the country, with the location near Lake Balkhash being considered since Soviet times.

In autumn 2023, IAEA experts once again confirmed that there are no factors preventing the construction of a nuclear power plant near Lake Balkhash. The construction process will also be monitored by international organisations such as the IAEA and WANO, ensuring high safety standards and minimising corruption risks.

The choice of contractor for the construction of the NPP will be based on economic feasibility, technological reliability, and environmental safety. This will contribute to the development of the national nuclear energy sector, create jobs, and improve infrastructure in the region. Reactor technology suppliers under consideration include China (CNNC), Russia (Rosatom), South Korea (KHNP), France (EDF), and the USA (GE-Hitachi and NuScale). However, due to the Kazakh authorities’ intention to use a proven reactor, the US offer was declined.

Radioactive waste will be safely stored at specially equipped sites. Kazakhstan has historically managed without nuclear energy thanks to large coal reserves. However, increasing consumption, ageing power plants, environmental problems, deteriorating health of people living in nearby areas, international restrictions on coal and gas, and the instability of renewable energy sources necessitate the introduction of new solutions.

The experience of other countries shows that relying solely on renewable energy (solar and wind) reduces industrial growth.

In addition, Kazakhstan has scientific institutes and highly qualified specialists, along with active training of personnel for NPP operations at universities and enterprises.

Currently, personnel training for the nuclear sector in Kazakhstan is conducted at Kazakh universities through five educational and two dual-degree programmes (Nuclear Physics, Nuclear Engineering, Nuclear Physics and Atomic Energy, Theoretical Nuclear Physics). Kazakhstan is also developing a scientific and educational base with foreign partners, with several agreements signed with France, Russia, and Hungary.

According to global practice, the construction of a nuclear power plant with two units can provide jobs for up to 8,000 people, while the operational phase will require about 2,000 personnel with higher and specialised education. Nuclear professionals will account for about 20% of the total workforce.

Nuclear energy is seen as a unique base source of "green" energy.

Given global trends and the example of neighbouring countries such as Uzbekistan, the construction of an NPP is becoming essential for Kazakhstan to avoid dependency and lagging in energy and technological development.

Moreover, "green" nuclear energy will enable our businesses to confidently enter global markets without fear of heavy fines for using "dirty" energy, significantly enhancing the competitiveness of our industrial potential.

The construction of a nuclear power plant in Kazakhstan will establish a strong foundation for the country’s energy security, improve the environmental situation by reducing emissions, stabilise electricity prices, and represent an important step towards technological advancement and industrial growth.

History of Nuclear Power Plants

The world's grid-connected nuclear power plant, the Obninsk NPP, was launched in 1954. It became the first nuclear power plant to produce electricity for civilian use. Following this, the development and construction of nuclear power stations began in various countries. In 1956, the first commercial NPP, Calder Hall, began operations in the United Kingdom.

As of 2024, there are approximately 415 nuclear reactors in operation across 31 countries. The largest number of NPPs are located in the USA (94), France (56), China (56), Russia (36), and other countries.

Over 70 years of nuclear power use, there have been three major accidents involving reactors of previous generations: the Three Mile Island accident in the USA (1979), the Chernobyl NPP disaster (1986), and the Fukushima-1 accident in Japan (2011).

Based on the experience of these accidents, new-generation reactors with significantly improved reliability and safety standards have been put into operation.

Modern nuclear power plants are designed with an excess safety margin, even for theoretically possible simulated scenarios, to withstand extreme natural and man-made impacts, including high-magnitude earthquakes, the crash of the largest fully-loaded aircraft with a maximum fuel load, 8-magnitude earthquakes, and protection against other natural phenomena.

As a result, the probability of accidents at modern NPPs is less than 1 accident per 10 million years of operation. By comparison, the likelihood of an explosion at a coal-fired power plant is 80 times higher.

Nuclear power plants, due to their unique combination of economic, environmental, and other factors, as well as their reliability, safety, and efficiency, are a fundamental element of global energy. They provide stable energy supply, reduce CO2 emissions, and ensure energy independence. In the context of growing energy demand and the fight against climate change, NPPs remain a reliable and promising energy source for the future amidst increasing global competition. They enable countries to keep pace with others, ensure stable economic growth, and improve the well-being of their populations.