Tag Archives: hydro power

Polyus’ Olimpiada and Blagodatnoye mines to operate on 100% renewable energy

PJSC Polyus’ decarbonisation plans have accelerated with an agreement for the supply of environmentally friendly electricity generated from PJSC RusHydro’s Sayano-Shushenskaya hydro power plant to its Krasnoyarsk Business Unit (KBU) in Russia.

The agreement, which assumes the provision of approximately 1 billion kWh of energy to KBU in 2021, means up to 90% of the electricity demand from the company’s production facilities will be met by renewable sources.

Once supplies under this contract commence, 100% of the electricity consumed by Polyus’ largest producing assets, Olimpiada (pictured) and Blagodatnoye, will be renewable.

Based on this estimate, KBU expects to reduce greenhouse gas (GHG) emissions in 2021 by almost half, while company-wide GHG emissions may decrease by a third compared with the previous year.

The agreement will cover the period until December 31, 2021, with the possibility of an extension, Polyus said.

In 2020, Polyus and RusHydro signed a five-year bilateral agreement for the sale and purchase of electricity produced by hydroelectric power plants on the territory of a technologically isolated electric power system in the Magadan region. The volume of electricity supplied under this agreement was greater than 300 million kWh/y.

Pavel Grachev, Chief Executive Officer of PJSC Polyus, commented: “This deal marks the transition of Polyus’ core business unit to renewable energy sources and represents a landmark event for our company. Climate change is a global challenge, and it is important that as a responsible business we support the decarbonisation of the global economy. For this reason, we are choosing to power our production assets with energy sources that will minimise our greenhouse gas emissions.”

Nouveau Monde Graphite advances Matawinie electrification strategy

Nouveau Monde Graphite says it has mandated Hydro-Québec to carry out a preliminary project encompassing the development, installation and operation of a 120 kV electrical line that will supply its Matawinie mine site and help the company meet its carbon-neutrality targets.

The goal is to connect the Matawinie project mine and concentrator, in Quebec, Canada, to the power network via a dedicated line that will enable the full electrification of its operations – a world first for an open-pit mine, according to NMG.

During the design phase, the technical, financial and environmental aspects, as well as the construction schedule, will be defined for the line. Hydro-Québec, Canada’s largest electricity producer and one of the world’s largest producers of hydroelectricity, will begin its studies and then issue public communications about the project in the coming months. The 120 kV line is expected to be powered up for the start of the mine’s operations in 2022, NMG said.

NMG said: “With its dedication to stringent sustainable development standards, Nouveau Monde is committed to having both its heavy equipment used for mining operations and its ore concentration and processing activities become fully electric within the first five years of production.”

The planned electrical line will supply power to support this operating model, which will reduce the CO2 emissions of the mine by more than 300,000 t over its lifetime, the company added.

Eric Desaulniers, President and CEO of Nouveau Monde, said: “The preliminary project is an important step in our electrification strategy, as the power line will guarantee a reliable, affordable and dedicated supply of renewable energy. This will give us a competitive advantage that lets us bring to market a product with the smallest possible environmental footprint.”

Desaulniers added that the company is having “positive discussions with commercial partners” to develop an electric fleet that is adapted to its property’s open-pit mining conditions.

The detailed engineering work is progressing in line with these goals.

“From mine planning to shift scheduling that takes into account recharge cycles, Nouveau Monde and its consultants are reinventing industry conventions to create the mine of the future,” it said.

NMG and Hydro-Québec have already partnered to research and develop graphite anode materials used to make lithium-ion batteries. The graphite developer also holds an operating licence from Hydro-Québec’s Center of Excellence in Transportation Electrification and Energy Storage to commercialise battery material technologies and position Quebec in the lithium-ion battery value chain.

Matawinie, in Saint-Michel-des-Saints, Quebec, is expected to start up in 2022. A 2018 feasibility study revealed strong economics for the project, with projected high-quality graphite concentrate of 100,000 t/y over a 26-year period.