Ontario's coal phase-out in 2014 will remove over 6400 MW of capacity from Ontario's electricity system. Around the same time, Ontario's old nuclear reactors start reaching their end of life and must shut down for repairs or for permanent closure. This means that between 2014 and 2019, nuclear capacity in Ontario declines by 3526 MW. Graph 1 above illustrates the decline in nuclear capacity coinciding with the coal phase out in 2014.

Reliance on Natural Gas Undermines Ontario's Climate Commitments

The Ontario Power Authority (OPA) intends to compensate for the combined loss of coal and nuclear capacity by burning more natural gas and increasing imports.  However, the dependence on dirty power will increase should delays in refurbishments occur or if old reactors retire earlier than planned.

Read More about the electricity gap:

Better Never Than Late: The Climate Fall-Out of Ontario's Nuclear Electricity Plan