Ontario to close four coal-fired power generating units

Sep. 9, 2009, Toronto – Ontario Power Generation (OPG) is preparing to close four
coal-fueled power units in 2010, four years ahead of the 2014 target.
This milestone launches Ontario's 10 steps to transition the province
to electricity generated from green energy.

OPG will close two of eight units at its Nanticoke station near Simcoe
and two of four units at its Lambton plant near Sarnia by October 2010.
Together, these plants represent about 2,000 MW of generation
capacity. With the shutdown of Lakeview Generating Station in 2005,
Ontario's in-service coal capacity will be reduced by 40% since
2003.

The announcement puts the province on track to be one of the first
jurisdictions in the world to eliminate coal-fired electricity
generation. Since 2003, more than 7,000 MW of new and refurbished
generation have come online to ensure reliability, including over 3,700
MW of new natural gas fired plants and over 1,200 MW of renewable
energy. It also advances the province's vision for the Green Energy Act
of 2009.

OPG will continue to assess converting its remaining 11 units to other
types of fuel such as biomass, a renewable fuel source that could not
only provide Ontario with renewable energy, but could provide an
alternate use for existing coal plants, as coal is phased out in the
years ahead. Atikokan Generating Station will be OPG's initial focus for
transition to biomass by the target year of 2012.

"Ontario is on the edge of creating one of the greenest and cleanest
electricity profiles anywhere in the world. Delivering on the
government's key commitment to eliminate coal, along with the Green
Energy Act, will cement Ontario as a leader in renewable energy and
conservation," said George Smitherman, deputy premier and minister of
energy and infrastructure.

"OPG is committed to being one of North America's cleanest electricity
generating companies. Phasing out coal generation will allow us to
pursue exciting new generation opportunities such as biomass," said Tom
Mitchell, president and CEO of Ontario Power Generation.