Calculating the cost of power is very complicated, and varies from province to province. The data from the Ontario Energy board is clear, nuclear power costs the ratepayers considerably less than natural gas, wind, solar or bioenergy, but more than hydropower. This is true across the country, nuclear is one of the least expensive sources of electrical power in Canada. The price for nuclear power below includes the consumer paying to make sure the spent nuclear fuel is safely handled, stored and permanently disposed of. The table below shows what consumers pay for the cost of various electrical power sources in Ontario as of 2021:
Citations
i. https://www.oeb.ca/sites/default/files/rpp-price-report-20201013.pdf