‘New Energy’ HPP modernization programme


New Energy is a programme modernising the power plants of the Angara and Yenisei HPP cascade to ramp up the energy output using the same volume of water passing through the hydropower turbines. Another goal is to reduce the Company’s carbon footprint by curbing the greenhouse gas emissions of the Company’s coal-fired power plants.

In 2021, the programme has enabled En+ Group to increase its power output by 2.1 TWh.

The programme assumes a large-scale reconstruction and replacement of the core equipment of the Company’s largest Siberian HPPs, i.e. the Krasnoyarsk, Bratsk, Irkutsk and Ust-Ilimsk HPPs. The programme entails modernisation of hydroelectric generation units and the replacement of runners.

The new runners’ improved blades as well as utilising new materials will increase HPPs’ efficiency, with an efficiency rate increase of up to 8% depending on the runner. Higher safety and better reliability of the HPPs is another priority, which will mitigate the risks associated with cavitation and generators wearing out.

The total investment will amount to RUB 21 bln rubles by 2026 (USD 282.7 mln as at 31 December 2021), including funds already invested (RUB 13 bln as at 31 December 2021).

As the New Energy programme is completed, the HPPs will meet the best performance standards, providing more reliable power supply to Siberian consumers. In addition to the expected business benefits, the New Energy programme will positively impact the environment of the Siberian regions in which we operate. 

Key figures

  • RUB 21 bln

    till 2026

  • 2.3 mln t CO2

    greenhouse emissions cut

  • 2.1 TWh

    additional power
    production of modernized

Hydropower partially replaces the one generated by coal-fired power plants and prevents GHG emissions amounting to 2.44 mt of СО2e in 2021. Incorporated to the modernised turbines impellers are designed to prevent the leakage of oil into water.

In 2021, the Company launched a new, the second in a row hydraulic unit at the Irkutsk HPP and began replacing the next unit.

The Company replaced one impeller and began replacing another impeller at the Bratsk HPP. Two new impellers were delivered to the Krasnoyarsk HPP and technical re-equipment began.

Programme status

Ust-Ilimsk HPP

4 of 16

runners replaced

Krasnoyarsk HPP

2 of 12

runners replaced (2016-2019)

Bratsk HPP

13 of 18

runners replaced

Irkutsk HPP

2 оf 8

generation units
replaced in 2020-2021

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