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For current customers and for future generations, CU must plan well in advance to make sure that the power is there when you need to “flip the switch” in your home or business.
The latest part of this power supply plan adds reliable, affordable, responsible power generation, at the existing Southwest Power Station, to meet growing community demand for power.
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Project Update
Last Updated:
September 30, 2009
Project manpower peaked just above 600 personnel in mid-September. Construction work continues on three major construction contracts; boiler island, balance of plant and coal handling. Construction is at 50% complete, while the overall project is at 68% complete.
Pressure part erection for the boiler is well underway. Considerable pre-fabrication of components is being performed in the field and crews are raising these preassembled sections into the boiler. Tube welding is being performed on reheater sections, division walls, furnace walls and transfer tubes. The front wall burners have been staged at elevation. Insulation of secondary ductwork has begun. The ‘A’ pulverizer has been erected and work on the ‘D’ pulverizer is underway. Erection of the air heater commenced this period. The ID Fan motor was received and placed. Erection of the baghouse continues with compartment placement at 60%. The contractor has been concentrating on the south-side compartments in an effort to release this area to follow-on contract work. Installation of fluidizing air piping and air-slides beneath the baghouse hoppers continues. The majority of boiler structural steel is complete with the current push for top steel to permit roofing installation. Considerable platform steel and handrail has yet to be installed. The tripper deck elevated slab was placed.
Work continued on elevated slabs for the crusher house; this included forms, rebar and concrete placement. The contractor erected the dust collector and continued on piping in the coal tunnel. The reclaim conveyor was assembled and erected from the reclaim tunnel to the crusher house. On the tripper deck, all silo chutes have been installed. The dust collector for this elevation was placed and components for the tripper conveyor were moved to elevation. Work began on the monorail system for this elevation.
Welding of main steam and reheat heavy wall piping continues. Installation of piping and hangers throughout the turbine building continues as does boiler feed water and extraction piping installation. The contractor is installing circulating water lines to the condenser and has completed fit-up and welding of the combined reheat valves at the turbine.
Wire-line and tops-on alignments of the LP and HP turbines were completed. Rotors have been set in their respective cases. Installation of the hydrogen coolers is complete. Siding work on the turbine building and east face of the boiler structure are completed. Work continues on the north face of the boiler structure and the north stair tower. Assembly of the fly ash storage silo was completed and the elevated slab in this structure was placed. The effluent and condensate storage tanks were erected. Both tanks have been sandblasted and are being internally coated. Excavation for the effluent pump station at the Southwest Treatment Plant is underway. Block work for the control room and DCS rooms has been completed. Blocking continues around the boiler building perimeter. The bulk hydrogen storage tank was received and placed on its foundation.
Installation of lighting, conduit and cable tray continues throughout the plant. Control cabinets, switchgear and motor control centers have been placed in their final location. Installation of the battery system is completed. Battery chargers should be active in October. Installation of iso-phase and non-seg bus duct is underway. The cooling tower service building was installed and electrical work in this area continues.
Factory Acceptance Tests for the distributed control system and continuous emissions control equipment were completed during the period.
A Commissioning Team has been assembled and check-out of switchgear and relay testing has begun. An initial publication of the commissioning schedule has been issued. Turn-over documents are being prepared for release to the contractors. These documents provide required information to be turned over by the contractors upon completion of their installation work.
Project Timeline
Check out the project timeline and accomplishments. Also, review pictures of SW2's progress.
Upcoming Milestones
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Oct - Roof over boiler structure
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Nov - Backfeed of electrical power
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Dec - Temporary enclosure of turbine building
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Southwest 2 - Outlet duct lift
Southwest 2 - View of plant
Southwest 2 - Artist Rendering.
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