In the Novosibirsk region, SUEK is engaged in a large-scale renovation of generating facilities and the development of heat networks. Five large investment projects are scheduled for completion by November. SGC's total investment in the Novosibirsk region in 2020 will reach $33.7m.
Altogether, SGС will spend $72m on the renovation and repair of CHPPs and heat networks in the Novosibirsk region in 2020. Half of this amount, $33.7m, is investment, the bulk of which is to be allocated for heat networks. Andrey Kolmakov, Director of SGC's regional branch, shared this information in his report on preparations for the heating season last week.
According to Andrey Kolmakov, in October and November, the company plans to complete work in five key areas of the investment programme.
Switching Zakamensky microdistrict to centralised heat supply
The project began in June 2020. SGC is completing work on a new engineering infrastructure intended to switch all Zakamensky microdistrict to centralised heating.
Since the residents used to receive heat only from the three nearest boiler houses, the total heat load was 6 Gcal/h; however, after the implementation of the project, the load will reach 22 Gcal/h.
CHPP-5 will be used for heating purposes, which is why the company has built 790 metres of intra-district heat networks and three central heat points.
The project cost totalled $1.5m. After the completion of infrastructure construction, SGC is preparing to connect 7 apartment buildings to centralised heat supply.
Re-equipping steam pipelines at CHPP-4
SGC has constructed new steam pipelines for two turbines of CHPP-4 with a total cost of $1.3m. One steam pipeline has been in operation since September, whereas the other one was completed on 8 October.
Steam pipelines 325 mm in diameter support the operation of two turbine units with a capacity of 200 MW at the power plant, which is 52% of CHPP-4's total electric capacity. In addition, the turbine units are supplemented with heating equipment generating 400 Gcal/h, which is 36% of the plant’s total installed thermal capacity.
According to experts, the new steam pipelines will last for 25 years.
Primary equipment of Transfer Pumping Station No. 2 in the Leninsky district
Transfer Pumping Station No. 2 is one of the oldest pumping stations in Novosibirsk, as it was put into operation in 1969. It takes part in the supply of resources from CHPP-3. The station is in need of renovation: soon, it will no longer be able to meet heat supply demands for new microdistricts in the left bank Novosibirsk.
Not only the station, but also a section of the heating main from the station towards Petukhova Street with increases in pipe diameter, are subject to renovation, which began last year.
This is necessary in order to improve the throughput of the heat networks for supplying heat and hot water to the developing Kirovsky district with its high-rise residential areas. The main goal of the project is a significant improvement in the reliability of local heat supply.
This year, the company will put into operation a part of the plant's equipment, while the completion is scheduled for next year.
Reconstructing a heating main section in Boris Bogatkov Street
The contractor plans to complete all construction work in early November. A large and important facility, it will raise the throughput of the heat network and improve the quality of heat supply to consumers.
This heat network will provide a capacity reserve of more than 100 Gcal/hour for connecting new consumers in the city centre.
Such increase in the throughput from CHPP-5 towards the central part of the city is required because of new constructions in the Zheleznodorozhny, Central and Zaeltsovsky districts. In addition, the new route will make it possible to switch three boiler houses of the Zakamensky microdistrict to the Novosibirskaya CHPP-5's heat supply area.
The plan was to have the job done by early October, but the contractors needed more time to resolve issues with removing adjacent utilities from the construction site. This work was done in cooperation with the utility owners, Gorvodokanal, Rostelecom, MUE UZSPTS. Work on removing the utilities was to be completed in the first place and did not always depend on the power engineers, as SGC explained the reasons for extending the work period.
Refinery connection to CHPP-5
By the end of November, the Novosibirsk Refinery's boiler house, which is located in a residential area and runs on diesel fuel, should be closed down. Connection to CHPP-5 will reduce air pollution, and the plant will enjoy a decrease in production costs. The Novosibirsk Refinery is the largest producer of bullions in Russia. Experts say the company will be able to save around $0.2m.
An increase in CHPP's load instead of heat generation by local boiler houses brings an energy-saving effect and reduces the specific resource consumption for heat production purposes.
SGC invested the bulk of funds in equipping the central heat point, approximately $0.2m. The construction of an intra-district heat network around 20 metres long in Leningradskaya Street required another $0.04m.
Over the past two years, consumers of ten boiler houses in Novosibirsk have already switched to centralised heating from the city's power plants.According to Andrey Kolmakov, the budget for this year's repair programme is estimated at almost $39m. Of these, the share of SGC's CHPPs in the region is $27.2m, and the share of the regional heat networks is $11.4m.