TORONTO, May 24, 2013 /CNW/ - Over the next 18 months, solar energy and
demand response will have a growing and noticeable impact on the
Ontario power grid, working to reduce summer peaks and help meet the
province's overall energy needs, said the Independent Electricity
System Operator (IESO) in its latest 18-Month Outlook. By the end of
2014, almost 1,900 megawatts (MW) of solar generation and an estimated
900 MW of demand response from large consumers will be available to
support reliability, particularly through the summer months.
"Ontario's power system has changed dramatically over the past number of
years, with a much greater diversity of generators and new forms of
supply - such as solar generation and demand response - entering the
market," said Bruce Campbell, IESO President and Chief Executive
Officer. "Operation of the power system today is more complex than in
years past, but with the right information and the right tools, it
continues to be managed reliably and efficiently."
The 18-Month Outlook anticipates adequate generation and transmission
capability to support system reliability over the next year and a half.
Peak demands in summer and winter should not pose any province-wide
reliability concerns, even under extreme weather conditions.
Ontario's first transmission-connected solar projects will come online
over the next 18 months. When added with solar generators on
low-voltage networks, these facilities will combine to generate 2.2
terawatt hours (TWh) of annual electricity - enough to power Guelph and
Woodstock - by the end of 2014. That embedded generation will reduce
demand for electricity from the transmission grid - particularly during
the summer when air conditioning use is at its highest.
Summer peaks are also being impacted by consumers cutting back their
energy use in response to conservation initiatives, time-of-use rates,
market prices and other incentives. Large energy users - such as
factories, universities or hospitals - who are eligible for the Global
Adjustment Allocation will play a notable role in that drop, reducing
their electricity consumption on the hottest days of the summer.
Ontario's power grid is also expected to encounter more frequent
instances of surplus baseload generation in the spring and summer
seasons of 2013 and 2014. This is due to multiple factors, including
lower off-peak demand for electricity, increased nuclear capacity and
more renewable generation. IESO system operators manage surplus
baseload generation through a range of tools and processes - including
exports, manoeuvering nuclear units and, beginning in September 2013,
dispatching wind generators. The IESO already has in place other
efforts - such as centralized wind forecasting and increased visibility
of embedded generation output - that will provide greater operational
awareness and efficiency in running the system.
Also from the 18-Month Outlook:
Lambton and Nanticoke coal generating units are expected to be removed
from the grid by the end of 2013, ending coal generation in Southern
The first of four expanded hydro stations on the Lower Mattagami is
expected to come into service by the end of Q2 2014.
3,300 MW of grid-scale wind, solar and biomass projects are expected to
be added to the system over the next 18 months. Of that, a record 1,100
MW of new wind capacity will be added during the summer of 2014.
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.may2013.
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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