Scotford - ATCO Power

170
MW
Cogeneration
A L B E R TA
SCOTFORD
Edmonton, Alberta, Canada
The Scotford Cogeneration Plant is a 170 megawatt natural
gas-fired cogeneration plant that meets the thermal and power
needs of the Athabasca Oilsands Upgrader. ATCO Power is the
sole owner and operator of the facility.
The Athabasca Oilsand Upgrader utilizes two-thirds of the
electricity generated by the Scotford Cogeneration Plant. The
remaining electricity is sold into the Power Pool of Alberta.
Energy from the exhaust of the gas turbines is recovered in
the heat recovery boiler to provide steam for the Upgrader and
steam turbine.
The Scotford Cogeneration Plant, constructed at the Shell
Scotford Refinery Site east of Fort Saskatchewan, Alberta is part
of the Upgrader facility. The Athabasca Oilsands Upgrader is a
joint venture between Shell Canada Limited, Chevron Canada
Resources Limited and Western Oilsands LP and is operated by
Shell Canada Limited.
Environmental Highlights
This facility consists of one large industrial gas turbine equipped
with a low nitrous oxide burner, one heat recovery steam
generator and one steam turbine which combine to achieve high
efficiency and low emissions.
EQUIPMENT
• One GE 75A gas fired turbines
with low NOx burners
• One heat recovery steam
generator with supplemental
gas fired duct burners
• One Alstom steam turbine
• Associated support equipment
HIGHLIGHTS
• Two-thirds of electricity energy
produced is used by the
Athabasca Oilsands Upgrader
with the balance being sold to
the Power Pool of Alberta
COMMERCIAL OPERATION
• 2003
OWNERSHIP
• ATCO Power – 100%
COGENERATION PLANTS
Cogeneration is a highly efficient and
environmentally attractive means of
generating heat and electric power at
the same time. Cogeneration is achieved
when a generating plant is constructed in
conjunction with an industrial facility that
has needs for both the power and heat
energy that is produced.
BENEFITS
• Low pressure steam is provided to
the facility after it is used for power
generation
• Some facilities consume high pressure
steam from the cogen, while other
supply surplus high pressure steam
where it’s used to generate power
instead of being vented
• Facility waste gases generate power
rather than being burnt in flare stacks
• Power is provided to the facility to
avoid transmission losses
• Sharing process products such as
cooling water, compressed air, water
treatment and feed water improve
efficiency and costs
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