TORONTO, Nov. 24, 2011 /CNW/ - Over the next 18 months Ontario will
continue to have an adequate supply of electricity to meet consumers'
needs, confirms the IESO in its most recent 18-month outlook report.
Released today, the report also makes recommendations to ensure the
reliability of the electricity system can continue to be maintained in
Ontario's generation resources will increase over the next 18 months
with the anticipated return of two refurbished Bruce nuclear units, and
the addition of approximately 400 megawatts (MW) of gas-fired
generation and more than 800 MW of grid-connected renewable generation.
The new transmission line from the Bruce area to Milton is expected to
be completed in December 2012 and will deliver additional power to
southwestern Ontario where electricity use is concentrated. These
expected generation and transmission additions result in a forecast of
adequate resources in every week over the outlook period, even under
extreme weather conditions.
Continued additions of wind and solar generation will see a combined
total of more than 4,300 MW in Ontario by May 2013. Increases in
variable generation combined with lower off-peak demand for electricity
and the return of two nuclear units may affect the IESO's ability to
balance the system in real time when electricity supply exceeds what is
"It's important for the IESO to continue to integrate renewable energy
into the electricity grid. The ability to manoeuvre all resources,
including renewables, is imperative to this integration," says Bruce
Campbell, IESO Vice President, Resource Integration. "We need all
resources to be flexible so we can keep the grid in balance as consumer
demand rises and falls throughout the day and week."
Electricity consumption in 2011 is expected to decline slightly compared
to 2010 but is forecast to grow in 2012 by 1.1 per cent. Peak demands
are expected to increase slightly.
The IESO regularly assesses the adequacy and reliability of Ontario's
power system. The 18-Month Outlook is issued on a quarterly basis and
is available at www.ieso.ca/18-Month.Outlook.
The IESO is responsible for managing Ontario's bulk electricity power
system and operating the wholesale market. For more information, please
SOURCE Independent Electricity System Operator
For further information: