Yesterday I pointed out that nearly a quarter of Toronto’s 24.7-billion-kWh-per-year demand for electricity comes from the Toronto Transit Commission (TTC), the company that runs the city’s subways, streetcars, and buses. And more than three-quarters of the TTC’s electricity, a whopping 4.4 billion kWh, is used to move electric-powered subways and streetcars. Where does that electricity come from?
Mostly from nuclear plants. Table 1 on the left-hand sidebar gives the sources feeding the Ontario grid in the last hour. As you can see, nuclear is by far the biggest single electricity provider; it usually out-performs all the other sources—hydro, gas, coal, wind, “other” (mostly biomass but some fossil)—combined. And as you can also see, nuclear comes with no emissions of carbon dioxide (CO2), the main manmade greenhouse gas.
When you get on the TTC subway, you pay $3 if you’re an adult, $2 if you’re a senior or student, and 75 cents if you’re a child. That small amount of money will carry you out to or within easy striking distance of pretty much anywhere in the city.
Given that electricity is such a big part of the TTC’s business, it is imperative that the cost of electricity remain affordable. Otherwise, the fare for using TTC subways, streetcars, or buses would have to go up. Fewer people would then use the TTC to get around Toronto. And the enormous environmental benefits, which I outlined yesterday, would be reduced.
Ontario nuclear power, by far the biggest single contributor to the electricity that makes Toronto run, is very cheap. Prices for nuclear power come in several varieties. The publicly owned generation company, Ontario Power Generation, sells nuclear electricity at a regulated rate of around 5.6 cents per kilowatt-hour. Bruce Power, the privately owned generator, sells it at just over 6 cents.
This is why the Toronto subway is affordable.