Global Leader in Hydro Power and Aluminium
Water Inflows as a Driver to Increase HPP Generation
Overview
The Group's Krasnoyarsk HPP's total power generation decreased to
19.7 TWh in 2019 (down 8.4% y-o-y). In 4Q 2019, power generation at the
Krasnoyarsk HPP was 5.5 TWh (down 8.3% y-o-y). The decline in the
generation levels comes from the decreased water reserves in Krasnoyarsk
water reservoir due to reduced inflow volumes in 2Q 2019 compared to the
same period last year. As at the end of 2019, the water level in the
Krasnoyarsk reservoir was 236.03 meters compared to 236.74 meters at the
end of 2018.
The Group's Angara cascade HPPs increased power generation to 44.5 TWh
in 2019 (up 20.9% y-o-y) and to 12.3 TWh in 4Q 2019 (up 30.9% y-o-y) due to
increased water reserves in the reservoirs of HPPS on Angara cascades as
well as increased water levels in the Bratsk reservoir, which reached 399.00
meters as at the end of 2019 vs. 396.43 meters at the end of 2018.
Water inflows, Angara cascade¹ (m³ per sec.)
8,000
7,000
6,000
5,000
4,000
3,000
2,000
Ent
GROUP
1,000
0
Jan Feb March Apr May June
Average (1977-2018)
2015
July Aug Sept Oct Nov Dec
2016
2017 -2018
2019
-1,000
Water inflows, Yenisey cascade / KHPP (m³ per sec.)
Water level (m)
8,000
7,000
6,000
Normal
Minimum
31.12.2019
31.12.2018
5,000
4,000
Irkutsk HPP
457.00
455.54
456.48
456.64
3,000
Bratsk HPP
402.08
392.08
399.00
396.43
2,000
1,000
Ust-Ilimsk HPP
296.00
294.50
295.93
295.71
0
Krasnoyarsk HPP
243.00
225.00
236.03
236.74
Jan Feb March Apr May June July
Average (1977-2018)
2015
- 2016
(1) Hydro production and water inflows data for Angara cascade include Irkutsk, Bratsk and Ust-Ilimsk HPPs.
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