TORONTO, Feb. 24, 2012 /CNW/ - Supply adequacy of Ontario's power system
will remain robust over the next 18 months, with sufficient resources
to meet consumers' needs, said the Independent Electricity System
Operator (IESO) in its latest 18-Month Outlook.
During the period from March 2012 to August 2013, there will be more
than 2,600 megawatts (MW) of capacity added to the grid, and the new
500 kilovolt (kV) double-circuit line from the Bruce Power complex to
the Milton Switching Station will be completed.
This additional generation includes the return to service of two
refurbished Bruce nuclear units with a capacity of 1,500 MW. At the
same time, approximately 400 MW of gas-fired generation and more than
700 MW of transmission-connected renewable generation will be added to
the grid. The new Bruce to Milton line, with its associated supporting
facilities, will accommodate the full output from all eight generating
units at the Bruce complex and the new renewable resources in
southwestern Ontario. By August 2013, total wind and solar generation
connected to the high-voltage transmission system and the low-voltage
distribution system in Ontario will reach approximately 4,000 MW.
"This is a time of renewal for Ontario's power system," said Bruce
Campbell, Vice President of Resource Integration. "Effectively managing
the grid during this period means understanding the characteristics of
this new supply, and adjusting our operations accordingly."
The ongoing weakness of the global economy will continue to impact the
Ontario economy over the forecast period. Conservation initiatives and
the growth in embedded generation will put downward pressure on both
peak demand and energy consumption. Combined, these impacts will limit
the growth in energy consumption to a modest 0.4 per cent in 2012.
Those same factors suggest peak demand will decrease over the same
New sources of generation continue to come online to meet future supply
needs and replace coal-fired capacity. The early incorporation of this
supply has led to periods of surplus baseload generation. Growing
volumes of variable generation, combined with lower off-peak demand for
electricity, the return of two additional nuclear units, and the
introduction of the new Bruce to Milton line will increase the
frequency and amount of surplus baseload generation over the outlook
period. The IESO will continue pursue additional actions to address
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: http://ieso.ca/imoweb/pubs/marketReports/18MonthOutlook_2012feb.pdf.
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
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