Energy and Greenhouse Gas (GHG) Emissions Management
Energy efficiency is a priority for New Gold: it’s not only about being responsive to climate change and imperative to global sustainability, but it’s also an important factor in the financial sustainability of our company. Energy is one of the biggest expenses at our operations and climate change has the potential to negatively impact our operations in various ways, such as extreme weather events and impacting water availability.
Description of Impacts
Our activities are energy intensive: it takes a lot of energy to break, grind and transport vast amounts of rock. Our energy use results in greenhouse gas (GHG) emissions from mobile equipment required to operate a mine, heating of underground works, the off-site generated electricity that we purchase to operate processing plants, underground ventilation systems and to power office buildings, as well as the use of explosives for blasting.
Across New Gold operations, diesel and electricity were the most significant sources of our energy consumption in 2017. Diesel is primarily used as fuel for mobile fleet operations, and electricity is used mainly for mill operations. Propane, gasoline and natural gas represent a relatively small portion of the energy consumed by our operations.
Operations1 Energy Consumption (GJ)
Excludes Rainy River.
We have developed an Energy and GHG Management System based on the Towards Sustainable Mining (TSM) Energy and GHG Emissions Management Protocol. In 2017, we continued work on implementing this management system across all our operations. As part of this initiative, energy champions have been engaged to assess opportunities for savings and a number of projects are being implemented across New Gold sites.
One of these efforts is an innovative energy management system implemented at New Afton in 2013, leading to ISO 50001 certification in 2014. New Afton was the first mine in Canada to achieve certification against this international standard and it is the only mine in North America to maintain certification through 2017. We have extended the learning experiences to our other operations and in 2017, Mesquite continued working towards the implementation of the ISO 50001 standard.
Putting Policy into Practice at New Afton
At New Afton, we use natural gas to heat the underground workings during winter months. Natural gas usage will continue to increase at New Afton as the active underground works expand and we’ve implemented an on-demand heating and ventilation system, which ensures that only those areas that are being occupied by workers are ventilated and heated.
New Gold initiated work on an Energy Management Strategy in late 2015. Implementation of the New Gold Energy Strategy is driving energy management and efficiency across our operations and embedding energy savings into our culture.
In addition to this Corporate Responsibility Report, New Gold reports energy and greenhouse data publicly to the Mining Association of Canada and to the Carbon Disclosure Project. All operations continue to work on the development of short- and long-term efficiency targets to improve energy savings over time.
|Diesel consumption (000s litres)||50,412,593||41,091,026||33,966,281|
|Gasoline consumption (000s litres)||551,064||555,120||508,925|
|Propane (000s litres) (includes LP3)||710,256||733,034||1,027,516|
|Natural gas (000s litres)||1,393,527||1,484,878||2,010,641|
|Power purchased (MWhs)||329,487||365,429||370,2582||365,969|
Data excludes Rainy River operations in 2017, as this site was transitioning from construction to production at the end of 2017.2.
Estimated 248,786,467 MWhs (68%) hydroelectric power and 17,810,074 MWhs (32%) of electricity generated by other sources. Fuels consumed to produce electricity other than hydroelectricity include coal, fuel oil, natural gas, nuclear (Ontario), biomass and renewables as reported by electricity providers.3.
LPG is an acronym for Liquefied Petroleum Gas.
|Emissions (000s of tonnes of CO2-e)||2015||2016||2017|
Greenhouse Gas/Ore Processed Ratio
Efficiency: Total Emissions1 per Ore Processed (000s tonnes), as Tonnes of CO2-e