Sredneuralsk GRES

Sredneuralskaya, the Order of Lenin and the Order of the Red Banner of Labor , State District Power Station - is located on the shore of Lake Isetskoye . The first mention of the Sredneuralskaya state district power plant is contained in the "Plan of the National Economic Construction of the USSR" for the first five-year period. The general "Urals Electrification Plan" planned the creation of the Central Urals trunk power line, based on 3 large district centrals - the southern (Chelyabinsk), northern (Gubakha) and Sredneuralskaya.

On August 31, 1930, the Energy Center issued a decision on the construction of the Sredneuralskaya TPP, which was supposed to cover the energy deficit of the Urals. In October 1930, Leningrad specialists, designers, surveyors, geologists appeared on the shores of Lake Isetskii. The construction of the station was started in 1931 , on January 5, 1936 the first turbogenerator of the Sredneuralskaya state district power station, with a capacity of 50 MW, was launched. In 1937, a second turbine was launched, and in 1939 a third turbine unit was commissioned. During the Great Patriotic War, the staff of the Sredneuralskaya GRES conducted a quarter of workers to the front. SUGRES supplied Uralvagonzavod with electricity - it produced a third of all tanks built in the USSR during the war, as well as many other defense enterprises of the Sverdlovsk Region.

On April 1, 1945, the Sredneuralskaya SDPP was awarded the Order of Lenin . On April 17, 1945, the Red Banner of the State Defense Committee was handed over to the staff of the power plant for eternal storage ^[1] . By 1949, the construction of the first stage of the state district power station with a capacity of 234 MW was completed: 8 boilers and 5 turbine units.

In 1950-1953, for the first time in the country, integrated automation of thermal processes was carried out at SUGRES. In 1954, a new type of fuel was developed - Ekibastuz coal.

Since 1962, the supply of heat to two cities was started along the unique at that time heating pipeline SUGRES - Sverdlovsk , with a length of 26 km. Since the 1960s, the construction of the second stage of SUGRES with a capacity of 238 MW has been underway. This was the second birth of a power plant. Thus, in the 1960s, a powerful cogeneration complex was put into operation at SUGRES, providing a supply of up to 1150 Gcal / h of heat energy and 2000 tons of hot water per hour for heat supply and hot water supply to the cities of Sverdlovsk, Verkhnyaya Pyshma and Sredneuralsk with a total population of over one million people. To improve the heat supply of Sverdlovsk, by the end of 1966, the first stage of the power plant was reconstructed: 3 turbines were transferred to heating, and 2 50 MW each and 2 boilers of 200 t / h were dismantled.

In connection with the growing needs of the regional center for heat, in 1964 the expansion of SUGRES began. In 1967–70, the third stage was commissioned with the capacity of a 900 MW power plant — three 300 MW power units: K-300-240 LMZ turbines and TGMP-114 boilers with a capacity of 950 tons of steam per hour.

In 1978, the power station was awarded the high title of "Enterprise of Communist Labor."

In 1982, the first phase of the power plant was transferred from coal to natural gas, and reserve fuel was black oil.

In 1985, at SUGRES, a water treatment complex was put in place to feed the heating system with a design capacity of 6,000 t / h, with feed water being supplied through the water supply from the Volchikhinsky reservoir. Such filtering facilities were not previously used in the energy sector.

By a decree of the Presidium of the Supreme Soviet of the USSR for achieving high technical and economic performance indicators of power equipment, by a decree of April 29, 1986, SUGRES was awarded the Order of the Red Banner of Labor.

More than once the Sredneuralskaya GRES became the winner of social competitions. In total, at the SUGRES, 10 relic banners handed to the collective for valiant work are stored.

In 1993, for the first time in the country, the reconstruction of a 300 MW power unit was completed with its transfer to the heating mode.

In 2002, the launch of a gas turbine expansion station (GTRS) with a capacity of 11.5 thousand kW - a new technological unit designed to use the energy of excess pressure ^[2] .

On May 4, 2018, PJSC Enel Russia the amount of generation since the start of the first turbine unit (January 6, 1936) at the Sredneuralskaya GRES amounted to 400 billion kilowatt-hours of electricity. According to the press service of PJSC Enel Russia, this amount of electricity would be enough to provide Yekaterinburg for 26 years or Moscow and the Moscow region for three years ^[3] .

Sredneuralskaya GRES implemented a five-year plan for stocking the Iset reservoir, which was a compensatory measure to replenish the biological balance of the reservoir during the construction and operation of the onshore pumping station of the SUGRES combined-cycle plant. In 2014, more than 2 tons of valuable fish were released into the reservoir. Since 2013, SUGRES has released over 6 tons of fish into the Isetskoe reservoir ^[4] . In 2015 and 2016, the Iset reservoir was still stocking.

In total, from 2013 to 2017, 258 505 fish of valuable species were released into the Isetsky reservoir ^[5] .

On August 24, 2017, at the Isetsky Reservoir, a special commission put into pilot operation a new fish protection device that will protect young fish from getting into the water intake. The system was installed at the onshore pumping station No. 1 of the Sredneuralskaya GRES of PJSC Enel Russia. Thus, all water intakes of the Sredneuralskaya GRES are provided with a system of protection against ingress and death of young fish, which will reduce the impact of the power plant production cycle on the ichthyofauna of the reservoir.

The installed airlift-type fish protection device will prevent at least 70 percent of young fish from 12 mm in size from entering the technological cycle of the power plant. This effect is achieved by creating an air-bubble curtain that prevents the penetration of fish into the intake devices of the Central Ural State District Power Station.

By the way, this is the third fish protection device installed at the Sredneuralskaya GRES. In 2011, a multi-contact pulse fish protection system was put into operation in the Iset reservoir near the water intake border of the onshore pumping station of the CCGT unit. Thus, today all water intakes of the Sredneuralskaya TPP are equipped with fish protection facilities ^[6] .

In 2018, the project for the installation of sound-absorbing equipment was completed at Sredneuralskaya GRES. At the end of 2017, 10 silencers were installed at power unit No. 10. In 2018, 12 silencers were installed at power units No. 9 and No. 11 of the Sredneuralskaya SDPP, which minimize noise exposure from high-pressure steam escaping. These devices are designed to reduce the sound pressure level during the emission of steam into the atmosphere at power units during start-up operations or equipment shutdowns. The issue of reducing acoustic impact is relevant for Sredneuralskaya GRES due to the fact that residential buildings in Sredneuralsk are very close to the power plant. This situation arose because in the 30s, during the design and construction of the power plant, there were no requirements for the territorial delineation of the location of citizens' houses and industrial facilities ^[7] .

Along with the implementation of a range of environmental protection measures, energy at the Sredneuralskaya TPP and Reftinskaya TPP began to introduce new technologies in the field of lighting and energy efficiency: instead of ordinary street lamps, solar-powered lamps were installed on the territory of power plants ^[8] .

In 2016, SUGRES announced the completion of large-scale works on the technical re-equipment of the cogeneration complex of the power plant. During the modernization, which began in 2014, an additional opportunity was created to use more reliable equipment to provide consumers with thermal energy. In particular, heat production was redistributed to it due to a previously not claimed reserve of thermal power ^[9] .

In 2017, the installed capacity of Sredneuralskaya GRES decreased by 78 MW due to the decommissioning of turbo-generators No. 1, 2, 5. Over the past 20 years, these turbo-generators have generated more than 4 billion kWh of electricity ^[10] . The shutdown of this equipment was carried out as part of a project to modernize the heating complex, which involved the elimination of obsolete units from the heat production process for Yekaterinburg, Verkhnyaya Pyshma, Sredneuralsk.

Currently, the installed electric capacity of SUGRES is 1578.5 MW, the thermal capacity remains the same - 1327 Gcal.

Today Sredneuralskaya GRES is part of Enel Russia . Enel Russia also includes Reftinskaya State District Power Station ( Sverdlovsk Region ), Konakovskaya State District Power Station ( Tver Region ) and Nevinnomysskaya State District Power Station ( Stavropol Territory ). In 2008, the construction of a combined-cycle plant (CCGT-410) with a capacity of 410 MW began at SUGRES.

On July 25, 2011 Enel OGK-5 (now Enel Russia) launched a new combined-cycle plant with a capacity of 410 MW (CCGT-410) at Sredneuralskaya GRES ^[11] .

Since the commissioning of CCGT in 2011, the specialists of the power plant have been able to increase its efficiency. So, in comparison with 2011, specific fuel consumption decreased by 10%, useful electricity supply increased by 4%. According to the results of certification tests, the installed electric capacity of CCGT units increased by 2%. Compared to 2012, heat supply increased by 80%.

The result of the work done and the experience gained was the 3rd place at the All-Russian competitions for the operational personnel of block Thermal Power Plants (TPPs), which included combined-cycle plants (CCGTs), which the power engineers of Sredneuralskaya TPP won in 2013 ^[12] .

• Sredneuralskaya GRES on the site of Enel OGK-5
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• ZAVODFOTO Sredneuralskaya TPP on Facebook