Beloporozhsky hydroelectric complex is a low-pressure dam channel hydroelectric power station with two buildings of hydroelectric power stations (Beloporozhskaya GES-1 and Beloporozhskaya hydroelectric power station-2). The installed capacity of the power plant is 49.8 MW (2 × 24.9 MW), the design average annual electricity generation is 231.2 million kWh.
The facilities of the hydroelectric complex according to the project include:
- soil dam with length of 1140.4 m and maximum height of 21 m;
- spillway dam;
- building GES-1 (left bank);
- GES-2 building (right-bank);
- ORU-220 of kV.
It is planned to install four hydraulic units with a capacity of 12.45 MW each (two in each building), equipped with rotary-blade turbines operating at a design head of 13.1 m. The manufacturer of hydraulic turbines is JSC Tyazhmash, generators are the Ruselprom concern. The retaining structures of the hydroelectric power station should form a reservoir with an area of 23 km ². Delivery of the electric power in power supply system from generators of the station will be made via four power TM-32000/220-U1 transformers with a power of 32 MVA and further through ORU-220 of kV on power lines of 220 kV.
The target and main parameters of the Beloporozhskaya hydroelectric power station as part of the Kemsky cascade were determined back in 1956 in the "Scheme for using the River Kem." In the 1980s, the Lenhydroproekt Institute developed and in 1988 passed all the necessary approvals for the project of the Beloporozhskaya hydroelectric power station with the following parameters: capacity - 130 MW, average annual output 336 million kWh. It was planned to install 3 hydraulic units with a capacity of 43.3 MW each, operating at an estimated head of 17.9 m. It was planned to build an earthen dam with a length of 2710 m and a maximum height of 25 m, as well as a concrete spillway dam with a length of 33 m.
The construction of the Beloporozhskaya hydroelectric station began in 1993 and was stopped in 1999 with a readiness of about 20%, the construction organization Sevgidrostroy. The main reason for the shutdown was the lack of funds, the project of the station was also criticized for the significant flooding areas (the reservoir area is 210 km ²), and the flooding of the village of Panosero, known for its ancient wooden architecture. Several projects were put forward to resume construction, in particular, in 2006 the construction of the Beloporozhskaya hydroelectric power station with a capacity of 86.8 MW was included in the investment program of OJSC ТГК-1 with the commissioning dates of 2013-2017, but these plans were not implemented.
In 2013, the project was resumed by the Beloporozhskaya hydroelectric station.
The original project was redesigned in order to reduce the area of flooding, as well as meet the criteria for competitive selection of projects implemented on the basis of the use of renewable energy sources, according to which the capacity of small hydropower plants should be less than 25 MW. This required the allocation of two hydroelectric buildings as part of the hydroelectric complex, each of which has a capacity that meets the criteria. In 2015, the projects of the Beloporozhye small hydroelectric power stations passed a competitive selection, following which an agreement was concluded to provide capacity, guaranteeing the payback of the project.
The project was the first in the Russian Federation to be financed by the BRICS New Development Bank, together with the Eurasian Development Bank and the International Investment Bank. Equity investors were the Russian Direct Investment Fund and the Chinese company Sinomec. The total investment is 11.8 billion rubles.
The construction of stations began in October 2016.
July 30, 2019 there was a solemn closure of the channel of the River Kem. The event was attended by Secretary of the Security Council of Russia Nikolai Patrushev, Plenipotentiary Representative of the President of Russia in the Northwest Federal District Alexander Gutsan and Head of Karelia Arthur Parfenchikov.
Our company has completed the following works:
1. Collection of initial permitting documentation
2. Development of the Project Documentation stage
3. Obtaining a positive opinion of the State Examination
4. Development of stage Working documentation
5. Construction support in the form of author supervision.