TORONTO, Sept. 12, 2012 /CNW/ - Ontario's electricity supply margins
will remain positive for at least the next year and a half, the
Independent Electricity System Operator (IESO) reported in its latest
Over the next 18 months, more than 3,000 megawatts (MW) of capacity will
be added to the grid, comprising approximately 1,500 MW of nuclear
generation and 1,500 MW of grid-connected renewable generation. By
February 2014, total wind and solar generation connected to the
transmission and distribution systems in Ontario will reach
approximately 4,800 MW.
After extensive consultation with stakeholders, the IESO has implemented
a new centralized forecasting service that is more accurately
predicting the output from wind facilities in Ontario. This service
will soon be expanded to predict solar output as well. The IESO is also
continuing its program to incorporate these renewable resources into
the dispatch process. This will help match generation to demand at
times when consumer use quickly ramps up or down.
Total energy consumption is forecast to remain flat in 2012 before
shrinking slightly in 2013 as a result of several factors. Global
economic conditions, increased embedded generation capacity,
conservation initiatives and time-of-use rates will constrain demand
increases on the bulk power system.
New resources and transmission projects have recently been brought into
service to support the scheduled removal of coal-fired capacity and to
ensure Ontario can meet its future supply needs. Once the refurbished
Bruce nuclear units and other new generation and transmission projects
are placed in service and demonstrate reliable operations, Ontario will
be in a good position to continue eliminating coal-fired generation
from the system.
"The heat waves we experienced this summer allowed us to test our
ability to operate the power system with a changing supply mix," said
Bruce Campbell, Vice-President of Resource Integration at the IESO.
"Integrating these new units into our day-to-day operations requires
the development of new tools and processes. It's a complex undertaking
but we're making good progress for the future, when renewable resources
will play an even greater role in meeting Ontario's supply needs."
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://www.ieso.ca/18-month.outlook.sep2012.
The IESO is responsible for managing Ontario's bulk electricity system
and operating the wholesale market. For more information, please visit www.ieso.ca.
SOURCE: Independent Electricity System Operator
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