The article is devoted to the 105th anniversary of Institute Teploelektroproyekt. Thermal power plants built according to the Institute's designs over the past twenty years, with installed combined-cycle and steam-power units running on gas and coal, are presented. The article describes the current environment of the institute's activities, the limitations of centralized financing of projects, the withdrawal from the market of power equipment of a number of foreign manufacturers of gas turbines due to sanctions, the adjustment of business plans of traditional customers of energy projects. The Institute actively accepts challenges, works with Russian manufacturers of gas turbine units, capitalizes on the accumulated experience of designing combined-cycle power plants (CCPP). An experience of construction and operation of the first stage of Sakhalinskaya SDPP-2 operating on coal, with a seismicity of the site at 9 points on the MSK scale on the coast of the Tatar Strait, is presented. During the time of operation of the station, the Sakhalin coal was found to be extremely viscous, which is associated with the presence of bentonite in its mineral part. The measures taken to partially reconstruct the fuel supply path led to a significant improvement in the operation of the path. The Institute-designed Svobodnenskaya thermal power plant (TPP) was put into operation, generating electricity and steam to provide consumers of the Amur Gas Processing Plant. Gas fuel is supplied from the main gas pipeline Power of Siberia-1. This implemented project is one of the examples of choosing a gas-fired steam turbine unit in favor of CCGT. The project Boiler House as Part of Ethane-Containing Gas-Processing Combine in the settlement of Ust-Luga on the Baltic Sea coast is unique as an example of the full integration of thermal power plant into a large industrial enterprise in order to solve the problem of minimizing the possible consequences of a major accident at the combine. The design of combined-cycle power plants of Novocherkasskaya SDPP and Artemovskaya CCPP-2 on the basis of domestically produced GTUs with a unit power of 110 and 160 MW, construction projects of new power units of Norilskaya CCPP-3 and Yakutskaya SDPP-2 for permafrost conditions are close to completion. The projects for the successive modernization of the Kirishskaya SDPP and Surgutskaya SDPP-1 power units with the replacement of steam turbine units are at the stages of designing and implementation. Institute Teploelektroproyekt is, as before, holding one of the leading positions among the design organizations of the industry, making a significant contribution to the development of the country’s energy industry.