The power sector would need to be fully decarbonised by 2030 and contribute to negative emissions thereafter to be on 1.5°C compatible. Achieving such a pathway will require ramping up renewable energy in Canada’s power generation from 67% in 2017, to 91–99% by 2030, an earlier phase-out of coal than is currently planned (by 2026, not 2030), and phasing out natural gas between 2026-2033, which the government has not yet considered. Continuing to invest in fossil fuels puts the country at risk of carbon lock-in and high-cost stranded assets.15
Towards a fully decarbonised power sector
The power sector could reach a fully decarbonised power sector by 2030 and become a source of net negative emissions thereafter. To be 1.5°C compatible, the carbon intensity of the power sector would need to reach -10 to -20 gCO₂e/kWh by 2050. This would require Canada to achieve 91-99% renewable energy in the power mix by 2030 and 99-100% by 2050 and contribute to negative emissions thereafter, allowing to balance emissions from other sectors such as agriculture.
4 Government of Canada. Regulations Amending the Reduction of Carbon Dioxide Emissions from Coal-fired Generation of Electricity Regulations. in Canada Gazette Part II, Vol. 152, No. 25, Regulation SOR/2018-263 (2018).
6 Canada Ministry of the Environment. Bill C-12: An Act respecting transparency and accountability in Canada’s efforts to achieve net-zero greenhouse gas emissions by the year 2050. (House of Commons of Canada, 2020).
7 Government of Canada. Canadian Net-Zero Emissions Accountability Act. in Bill C-12 (2021).
19 While global cost-effective pathways assessed by the IPCC Special Report 1.5°C provide useful guidance for an upper-limit of emissions trajectories for developed countries, they underestimate the feasible space for such countries to reach net zero earlier. The current generation of models tend to depend strongly on land-use sinks outside of currently developed countries and include fossil fuel use well beyond the time at which these could be phased out, compared to what is understood from bottom-up approaches. The scientific teams which provide these global pathways constantly improve the technologies represented in their models – and novel CDR technologies are now being included in new studies focused on deep mitigation scenarios meeting the Paris Agreement. A wide assessment database of these new scenarios is not yet available; thus, we rely on available scenarios which focus particularly on BECCS as a net-negative emission technology. Accordingly, we do not yet consider land-sector emissions (LULUCF) and other CDR approaches which developed countries will need to implement in order to counterbalance their remaining emissions and reach net zero GHG are not considered here due to data availability.
Canadaʼs power sector emissions and carbon intensity
MtCO₂/yr
Unit
−5005010019902010203020502070
Historical emissions
High energy demand - Low CDR reliance
SSP1 Low CDR reliance
SSP1 High CDR reliance
100%RE
Low energy demand
1.5°C compatible power sector benchmarks
Carbon intensity, renewable generation share, and fossil fuel generation share from illustrative 1.5°C pathways for Canada
Indicator
2019
2030
2040
2050
Decarbonised power sector by
Carbon intensity of power
gCO₂/kWh
130
0
−10 to 0
−20 to 0
2029 to 2030
Relative to reference year in %
−98 to −97%
−106 to −100%
−117 to −103%
Indicator
2019
2030
2040
2050
Year of phase-out
Share of unabated coal
Percent
7
0
0
0
2026
Share of unabated gas
Percent
11
0 to 1
0
0
2027 to 2034
Share of renewable energy
Percent
66
90 to 99
97 to 100
99 to 100
Share of unabated fossil fuel
Percent
18
0 to 1
0
0
Investments
Demand shifting towards the power sector
The 1.5°C compatible pathways analysed here tend to show a strong increase in power generation and installed capacities across time compared with a current policy scenario. This is because end-use sectors (such as transport, buildings or industry) are increasingly electrified under 1.5°C compatible pathways, shifting energy demand to the power sector. Globally, the “high energy demand” entails a particularly high degree of renewable energy-based electrification across the various sectors, and sees a considerable increase in renewable energy capacities over time. See the power section for capacities deployment under the various models.
Canadaʼs renewable electricity investments
Billion USD / yr
2030204020502060203040
Yearly investment requirements in renewable energy
Across the set of 1.5°C pathways that we have analysed, annual investments in renewable energy excluding BECCS increase in Canada to be on the order of USD 10 to 48 billion by 2030 and 11 to 64 billion by 2040 depending on the scenario considered. The ‘high energy demand, low CDR reliance’ pathway shows a particularly high increase in renewable capacity investments, which could be driven by an increase of electrification of end-use sectors and growing energy demand. Other modelled pathways have relatively lower investments in renewables and rely to varying degrees on other technologies and measures such as energy efficiency and negative emissions technologies, of which the later can require high up-front investments.