CO2 EMISSIONS BY TYPE (KT)
|Copper cathode equivalent production
|CO2 per unit of copper
|CO2 per unit of ore processed
CO2 per unit of ore processed in 2018 was 4% lower at 0.049, from 0.051 in the prior year. CO2 emissions per tonne of copper produced increased slightly to 8.8 tonnes (2017: 8.3 tonnes), due to the expected reduction in average copper grades in ore processed during the year.
As operating activities have increased with Aktogay and Bozshakol ramping up, total CO2 emissions increased by 21% to 2,601,060 tonnes (2017: 2,142,914 tonnes). The increase was largely due to higher ore volumes at Aktogay, where sulphide processing increased by 61% to 20.8 Mt (2017: 12.9 Mt), leading to a 62% increase in CO2 emissions at the site.
Scope 1 emissions mainly relate to mining activities at Bozshakol and Aktogay and heat energy consumption in the East Region. Scope 1 emissions increased slightly in 2018 as planned lower ore and waste rock extraction at Bozshakol and Bozymchak was offset by a 60% increase in extraction at Aktogay. Scope 2 emissions increased by 25% and mainly relate to electricity consumption at the Bozshakol and Aktogay concentrators, where combined processing volumes were 31% higher in 2018.
CO2 intensity, t per $ million revenue
|CO2 emissions, t per $ million revenue
|Total CO2 emissions (Scope 1, Scope 2, kt)
The Group’s CO2 intensity by revenue, as measured by the Carbon Disclosure Project (tonnes of CO2 per $1 million of revenue), has improved as the major growth projects have ramped up and commodity prices averaged higher in 2018, from 1,289 tonnes in 2017 to 1,203 tonnes in 2018.
Further reducing CO2 emisions intensity
The Group is committed to minimising the CO2 intensity of its operations as stated in its Environmental Policy. The Group HSE Committee is responsible for the monitoring of CO2 intensity.
The operations’ General Directors are responsible for implementing efficiency initiatives to minimise energy consumption at site level.
Reductions in CO2 intensity have been achieved through the transition to modern open pit mining. In the longer term the Group will seek to increase the use of renewable energy sources where possible. The 0.17 PJ of electricity consumed at the Bozymchak mine comes exclusively from renewable energy sources (hydropower).
In August 2018, the Group agreed to acquire the Baimskaya copper project in the Chukotka region of Russia, where it intends to construct a new open pit copper mine with on-site concentrators capable of processing 60 Mt of ore per year, with first copper production expected in 2026. Electrical power for the construction phase of the Baimskaya project will be drawn from local nuclear facilities and the power for production activities after 2026 is expected to be largely drawn from hydropower sources in the Magadan region. The Baimskaya copper mine is therefore expected to draw the majority of its energy consumption from carbon-free energy sources, with the only significant CO2 emissions arising from the use of diesel fuel in mining activities and the transportation of copper concentrate to customers. The ramp up of production at Baimskaya from 2026 onwards is expected to significantly reduce the CO2 intensity of the Group’s activities, further reducing both CO2 emissions per tonne of ore processed and per tonne of copper produced.
The Government of Kazakhstan, where the majority of the Group’s assets are currently located, is committed to increasing electricity generation from renewable sources as part of its national development strategy, with a target of 30% of power generation by 2030 and 50% by 2050.