Mongolia, struggling to add transport and power infrastructure to match the country’s commodity-driven economic growth, signed a turbine order that will help boost capacity at its biggest generator by 21 percent.

The Ural Turbine Works agreed to supply and install a 120 megawatt steam turbine at the Ulan Bator power plant No. 4, which supplies 70 percent of Mongolia’s electricity and heat, Moscow-based Renova Group, which controls the Russian factory, said in a statement yesterday. The turbine will begin operating in 2014, Renova said.

Ulan Bator coal-fired power plant No.4 has an installed capacity of 570 megawatts. The turbine order is Mongolia’s first purchase of such equipment from Russia since the break-up of the Soviet Union two decades ago, Renova said.

To contact the reporter on this story: Yuriy Humber in Tokyo at yhumber@bloomberg.net

To contact the editor responsible for this story: Jason Rogers at jrogers73@bloomberg.net