modernizes, maintains water supply, water purification and water treatment facilities for energy, petrochemical, food, and other industries. Additive manufacturing division The managing company is Rusatom Additive Technologies. It connects together the scientific and production companies of Rosatom in order to develop the area of additive production in Russia. It controls design and production of 3D-printers, additive powders, complete sets, software, and 3D-printing services. Energy storage systems division The managing company is LLC RENERA, which is engaged in the development of lithium-ion traction batteries for electric transport and fixed systems for energy accumulation, as well as products for emergency and uninterruptible power supply and storage systems for renewable energy. Process control systems and electrical engineering division The managing company is JSC Rusatom Automated Control Systems. It builds comprehensive solutions for automation of production processes, manufactures and supplies electrical equipment, designs and constructs electricity supply facilities. Environmental solutions division The managing company is FSUE Federal Environmental Operator. Sales and trading division The managing company is Techsnabexport (TENEX), which is in charge of international export of uranium enrichment services and products. Techsnabexport was founded in 1963 as a foreign trade agent of the Soviet nuclear industry, the company is known on the foreign market under the trademark TENEX. In 1993, a Russian-American intergovernmental program, the Megatons to Megawatts Program, in which the aims were converting highly enriched uranium extracted from Russian nuclear warheads into low-enriched uranium for use by American nuclear power plants, was signed thanks to Techsnabexport's efforts, and lasted until 2013. By the end of the agreement, about 500 tons of weapons-grade uranium were recycled from 20,000 Russian warheads. The fuel thus produced provided about half of all energy produced by US nuclear power plants (and about 10% of all electricity produced in the US). Operations Nuclear power plants The management company Rosenergoatom operates all of Russia's nuclear power plants and represents the electric power division of the state corporation Rosatom. As of April 2021, 11 nuclear power plants (38 power units) operated in Russia with a total capacity of 30.5 GW, producing about 20.28% of all electricity produced in Russia. In operation As a result of reforms and reassignments in the period from 2012 to 2014, Rosatom's engineering activities were concentrated within the management company Atomenergoproekt-Atomstroyexport (NIAEP-ASE), based in Nizhny Novgorod. Earlier, Atomstroyexport was engaged in foreign construction, and a number of independent engineering institutes with the name Atomenergoproekt were