Canada has achieved a remarkable milestone by sourcing more than 80% of its electricity from low-carbon sources, with hydropower making up the lion's share at about 57%. Nuclear power contributes close to 14%, while wind and solar provide 7% and 1.5% respectively. Fossil energy sources, though still present, account for just over 19% of electricity generation, predominantly from gas and coal. With such a high percentage of clean electricity, Canada's next challenge lies in significantly boosting electricity supply to electrify other sectors such as transport, heating, and industry, to further reduce greenhouse gas emissions.
To increase low-carbon electricity generation, Canada could significantly benefit from expanding its existing nuclear infrastructure. Nuclear energy is already a major contributor to the nation's clean electricity grid, and its expansion can offer a reliable and potent increase in low-carbon power. Additionally, expanding wind and solar energy infrastructure would help diversify and stabilize the energy grid. Combining these scalable solutions would ensure a robust, clean energy mix to meet future demands as Canada moves towards electrifying other sectors.
Looking at the history of low-carbon electricity in Canada, the 1980s saw substantial growth in hydropower, with notable increases in 1978, 1981, and 1984. However, the late 1980s and the turn of the century were marked by some significant declines, especially in 1989, 1998, and 2001. The 1990s witnessed a positive shift in nuclear energy, with considerable increases in 1993 and 1994. The early 2000s continued this trend with a major boost in nuclear in 2004. Hydropower showed both gains and declines, with significant challenges in recent years, particularly the large declines in 2023 and 2024. Despite these fluctuations, Canada has consistently invested in expanding both hydropower and nuclear capacity, solidifying its position as a leader in low-carbon electricity generation.