New combined-cycle plant in Halton Hills, Ontario

The Halton Hills Generating Station will be a 683-MW combined-cycle plant, owned and operated by TransCanada Energy Ltd. It will generate more electricity, more efficiently than conventional fossil-fuel and boiler generation.

Natural gas is the cleanest burning fossil fuel – producing less than half of the greenhouse gases of other fossil fuels such as coal or oil.

The 80-acre site will include:

• Two natural gas-fired industrial turbines
• Two heat recovery steam boilers
• One steam turbine
• Air cooled condenser
• HV switchyard
• 1.3 km of u/g 230-kV transmission line
• Water treatment plant including water storage
• Stormwater management pond

Hatch Energy is providing part of the detailed design and construction support service to Halton Hills Power Partners (HHPP), a joint venture of Burns & McDonnell and Aker Kvaerner Songer. HHPP is performing the project for TransCanada on an EPC basis.

Hatch Energy's scope includes detailed engineering of civil and structural works, electrical works, and stress analysis of the piping as well as site development of the stormwater management system. This includes preparation of technical specifications for procurement of materials, equipment and services (pre-engineered buildings, piling works, transformers, switchgears and MCCs). In addition, Hatch is helping HHPP to carry out studies, calculations and analyses such as critical-piping stress analysis, and power system and protection studies.

Hatch is also preparing general arrangement and detail drawings for foundations, structural steel, duct banks, grounding, wiring and single-line diagrams. Most of the design work is performed in a 3D environment.

TransCanada Energy Ltd. is a wholly-owned subsidiary of TransCanada Corporation. A growing independent power producer, TransCanada also owns, or has interests in, approximately 7,700 MW of power generation.

The new facility in the Halton Hills area will have the capacity to generate enough power for approximately 600,000 homes. Construction started in the fourth quarter of 2007 and the plant is scheduled to come on-line in mid-2010.

For further information, please contact:

Roy Smith
Project Manager
Mississauga, ON
+1 905 403 3705
RSmith@hatch.ca