Key production assets

Electricity and heat production is the key business of RusHydro Group. The Group’s asset structure includes over 90 renewable energy facilities, both in Russia and abroad, along with some thermal power plants and electrical grid assets in the Far East. As at January 1, 2019, the installed capacity of RusHydro power plants, including Boguchanskaya HPP, totaled 39,370 MWIncluding PJSC Boguchanskaya HPP (a joint venture of PJSC RusHydro and RUSAL) and HPP-2of PJSC KamGEK, and excluding HPP-1and HPP-3of PJSC KamGEK, assets held in trust. , up 331 MW year-on-year. The installed heat capacity increased to 18,924 Gcal/h, up 426.9 Gcal/h.

The growth in the installed capacity of the Group’s facilities was driven also by the commissioning of Vostochnaya CHPP (139.5 MW, 432.6 Gcal/h) in Vladivostok and hydroelectric unit No. 3 at Ust-Srednekanskaya HPP (142.5 MW) as well as the implementation of the Comprehensive Modernization Program at Saratovskaya HPP (+12 MW), Nizhegorodskaya HPP (+3 MW), Novosibirskaya HPP (+5 MW) and Rybinskaya HPP (+10 MW).

The installed capacity structure shows the prevalence of large HPPsLarge HPPs are those with the capacity of over 30 MW that do not fall into the category of small HPPs. generating 28,966 MW, or 74% of the total installed capacity, while 8,598 MW, or 22% of the installed capacity, is generated by the TPPs of RAO ES East Subgroup. The Group’s assets also include 1,200 MW Zagorskaya PSPP, 300 MW Zelenchukskaya HPP-PSPP and 16 MW Kubanskaya PSPP. The Group’s renewable energy facilities, including SHPP (up to 30 MW), GeoPP, WPP and SPP, account for a total installed capacity of 290 MW.

Installed capacityIncluding PJSC Boguchanskaya HPP (a joint venture of PJSC RusHydro and RUSAL) and HPP-2of PJSC KamGEK, and excluding HPP-1and HPP-3of PJSC KamGEK, assets held in trust.,MW
Installed capacity structure by generation type [EU1]
Generation structure by regulatory regime, [EU1]

RAO ES East electrical grids

The businesses of JSC RAO ES East ensure power transmission and distribution both in UES of the East and in isolated energy systems.

In UES East, the power from higher voltage grids in 220 kV UNEG is transmitted to the consumers by JSC DRSK, while in isolated electrical grids – by AO-energo. At the end of 2018, the total length of 35–220 kV transmission grids was 34,966 km.

The distribution grid transmits power from a 35–220 kV grid to low and medium (MV-2) voltage consumers. At the end of 2018, the total length of low voltage overhead and cable power lines made up 69,781 km, up 526  km year-on-year.

At the end of the reporting period, the total number of transformer substations increased to 22,000, up 336, with their total capacity hitting 29,317.3 MVA, up 540 MVA. For the low-voltage category, changes in the length of transmission power lines and in the number and capacity of transformer substations are primarily associated with the housing construction in large cities of the Far East, recognition of abandoned rural grids and grid reconstruction.

The construction of 110, 35 kV approach lines to the 220 kV Maya substation was completed that helped integrate the Central and Western energy hubs of Yakutia into UES East.

The number of utility connection contracts executed during the year rose by 1% (to 22,500). The Group made it technologically possible to connect consumers (including in ASEZs) to the maximum capacity of 884.3 MW.

In 2018, total electricity fed to the grids of JSC RAO ES East Subgroup stood at 35,427.2 mn kWh, up 1,139.3 mn kWh year-on-year. The grid losses amounted to 9.6%. [EU12]

Length of transmission and distribution power lines by regulatory regime, km [EU4]
Length of transmission power lines Measured by chain.
Grid class 2017  2018  2018-2017
WECM
Overhead power lines
110 kV 7,940 7,975 35
35 kV 8,807 8,856 49
Cable power lines
110 kV 40 40 0
35 kV 84 92 8
REM
Overhead power lines
220 kV 5,180 5,180 0
110 kV 5,904 5,898 –6
35 kV 6,997 6,917 –80
Cable power lines
110 kV 2 5 3
35 kV 4 4 0
Total transmission power lines 34,958 34,967 9
Length of distribution power lines Measured by chain.
WECM
Overhead power lines
6 (10) kV 20,540 20,622 82
0.4 kV 20,532 20,503 –29
Cable power lines 1,156 1,268 112
6 (10) kV 1,120 1,120 0
0.4 kV
REM
Overhead power lines
6 (10) kV 10,957 11,025 68
0.4 kV 11,459 11,677 218
Cable power lines
6 (10) kV 2,041 2,085 44
0.4 kV 1,451 1,480 29
Total distribution power lines 69,256 69,780 524
Total length of power lines 104,214 104,747 533
Number and installed capacity of 06–220 kV transformer substations
Unit 2017  2018  2018–2017
WECM
Number of 220 kV transformer substations pcs 1 1 0
Capacity of 220 kV transformer substations MVA 80 80 0
Number of 110 kV transformer substations pcs 242 246 4
Capacity of 110 kV transformer substations MVA 7,370.8 7,667.4 296.6
Number of 35 kV transformer substations pcs 476 479 3
Capacity of 35 kV transformer substations MVA 4,380.8 4,445.9 65.1
Number of 6 (10) kV transformer substations pcs 10,943 11,121 178
Capacity of 6 (10) kV transformer substations MVA 3,511.8 3,565.1 53.3
REM
Number of 220 kV transformer substations pcs 28 27 –1
Capacity of 220 kV transformer substations MVA 3,652.3 3,351 –301.3
Number of 110 kV transformer substations pcs 140 139 –1
Capacity of 110 kV transformer substations MVA 4,496.3 4,694 197.7
Number of 35 kV transformer substations pcs 383 386 3
Capacity of 35 kV transformer substations MVA 1,613 1,715.2 102.2
Number of 6(10) kV transformer substations pcs 9,451 9,601 150
Capacity of 6(10) kV transformer substations MVA 3,672.3 3,798.7 126.4
Total substations pcs 21,664 22,000 336
Total capacity of substations MVA 28,777 29,317 540