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American turbines drive down Yakutsk
Yakutskaya GRES-2 "RusHydro" was introduced late, but now it is permanently shut down
Rostekhnadzor and the prosecutor's office took control of the situation with too frequent disconnections of the Yakutsk SDPP-2. As it turns out, the station, handed in just four months ago to improve the reliability of power supply in Yakutia, has already experienced at least eight failures during the winter, one of which cut off the consumers of 110 MW of electricity at the end of March - Yakutsk and its suburbs. The government of Yakutia says that failures are associated with project decisions, "which need to be changed." In 2014, the equipment of the Yakutsk SDPP-2 has already become the focus of attention of the FAS: then the antimonopoly body suspected RusHydro and General Electic in collusion when supplying gas turbines for the station, but then the claims were dropped. EastRussia understood the details.
"It's right: for the summer the station needs to be brought into the normative state." People constantly complain that the temperature was minus 50-60 degrees this year, and when the GRES-2 went out of operation, we literally had to survive. summer to summarize the half year, I will check the situation of the station and emergency housing, "- said the deputy prosecutor general.
The head of the Far Eastern department of Rostekhnadzor Alexander Kopareikin also noted that at the Yakutsk SDPP-2 "electrical outages have recently been disrupted." "This was 25, 29 March, 3 April The most large-scale shutdown occurred 25 March, when consumers were disconnected with a total capacity of about 110 MW - Yakutsk and the suburbs." All the accidents were conducted or conducted investigations. "Rostechnadzor's bodies are determined and taken to control the execution of the event specified in the acts of investigation, "he noted, but did not go into details, since the investigation into the last accident by the commission at the GRNP-2 continues. "The station has almost been put into operation, and the reasons for such frequent accidents should be identified, an assessment is made, a list of organizational and technical measures is developed to ensure the station's operation in normal mode," said Alexander Kopareikin.
Yakutskaya GRES-2, we recall - one of the four priority objects of RusHydro in the Far East. The electric power of the GRES-2 is 193,48 MW, the thermal power is 469,6 Gcal / hour. The station, the construction of which cost 31,2 billion rubles, was put into operation in November 2017 year. Now GRES-2 provides 30-60% of electricity and heat to the central power district of Yakutia. Previously, an isolated power district, which covers about 400 thousand consumers, provided only GRES-1 (about 90% of electricity consumption in nine districts of Yakutia and more than 50% of Yakutsk heat consumption accounted for it), but its equipment is worn out.
According to the data of Yakutskenergo, in aggregate 12 gas turbine plants of Yakutsk SDPP-1 and four GRES-2 plants provide 100-percent power reserve, that is, theoretically problems due to outages of separate power plants at two stations should not be at all. Yakutsk SDPP-2, according to the Ministry of Energy, was built with the aim of "creating the necessary power reserve by creating a new source of generation, ensuring the growth of electrical and thermal loads in the central energy district of the Yakutsk energy system in the future until 2020, increasing the reliability of energy supply to consumers in the isolated central energy district and the city of Yakutsk."
However, problems with GRES-2 began even before its official commissioning: on October 17, 2017, complex tests were carried out at the station and energy began to be supplied to the grid, and after just three weeks the first failure left about 100 thousand consumers without electricity. Gas turbine units at GRES-2 LM 6000 PF are manufactured by General Electric and are powered by fuel from the Srednevilyuyskoye gas condensate field. LM6000 turbines are produced on the basis of aircraft engines and are used on ships, floating oil production, storage and unloading systems, tankers, hospitals, airports, factories. The second stage of GRES-2 involves the installation of three more turbines with an increase in the design capacity for electric and thermal energy up to 305 MW and 272 Gcal / h, respectively, but the timing of the project is not yet clear.
Interestingly, in 2014, the Federal Antimonopoly Service opened a case against PJSC RusHydro and GE just over a tender for the supply of turbines for the Yakutskaya GRES-2, suspecting the customer and the supplier in collusion: the German company Siemens wanted to participate in the tender, but how the company said it couldn't. However, Siemens later dropped the claims, and in the summer of 2015, the FAS stated that "despite the presence of formal signs of violation of the antimonopoly legislation, the FAS Russia Commission did not find any evidence of restricting competition during tenders." As a result, GE delivered four turbines for 5,6 billion rubles.
Как earlier wrote EastRussia, Yakutsk SDPP-2 was to be commissioned in 2015, but the timing of its launch was twice postponed. RusHydro was explained by delays in the introduction of GRNP-2, including "difficulties associated with the supply of the main equipment (replacement of equipment within the import substitution, delay in the import of unique unique equipment)." In October 2017, the Accounting Chamber, which controls all the Far Eastern construction projects of RusHydro, celebratedthat "amendments to the design documentation of the Yakutskaya GRES-2 (1st stage) led to an increase in the cost of construction, which amounted to 5,1 billion rubles.", and "the increase in cost was due, among other things, to the specification of the physical scope of work and the quantitative equipment, as well as partial changes in design solutions at the stage of working documentation development ".
The director of the Yakutsk SDPP-2 Ruslan Iskhakov the other day told News.Ykt.ruthat "the cases that have occurred are associated with the identification of shortcomings in the first years of operation, we will not get away from this." "The power facility is new, in the process of operation, in any case, it is necessary to refine all units, mechanisms. There are moments that cannot be taken into account in the process of commissioning. The general contractor, equipment supplier are ready to work with us and are working," debugging will take "two to three years".