Maintenance & Construction Projects
Major Capital Construction
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Chowchilla and Merced Power Plant Refurbishment
Global Ampersand LLC, Chowchilla and Merced Biomass - Chowchilla and Merced, CAComplete refurbishment of two mothballed facilities.
Air Quality Control Systems
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Walter Scott SCR Catalyst Replacement
MidAmerican Energy, Walter Scott Energy Center - Council Bluffs, IARemoved, repositioned and installed selective catalytic reduction (SCR) media on Unit 4.
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Sibley SCR Installation
Aquila, Sibley Generating Station - Sibley, MOInstallation of a selective catalytic reduction (SCR) of a 420 MW boiler.
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Brunner Island Electrostatic Precipitator Installation
PPL, Brunner Island Plant - York Haven, PAInstalled a new electrostatic precipitator (ESP) on a 390 MW unit at the Brunner Island Power Station.
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Midwest Utility SCR Catalyst Replacement
Midwest UtilityReplaced 624 catalyst units in the Unit 1 selective catalytic reduction (SCR) with new “taller” catalyst media.
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Widows Creek SCR Catalyst
Tennessee Valley Authority, Widows Creek Fossil Plant - Stevenson, ALReplaced 140 catalyst modules in Unit 8 with 140 modules of regenerated catalyst media.
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Midwest Utility Air Heater & Outlet Duct Rehabilitation
Midwest UtilityReplaced 41 Superheater Intermediate Pendants and associated Outlete pendants, tubes, headers,and casings.
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Midwest Utility Superheater Intermediate & Outlet Pendant Replacement
Midwest UtilityRemove and install 41 Secondary Superheater Intermediate Pendants and associated Outlet Pendants, tubes, casing, and seals.
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Conemaugh Economizer Outlet Duct Modifications
GenOn Energy Inc, Conemaugh Generating Station - New Florence, PAModifications to the unit 1 economizer outlet tie-in duct segments at the 1,800 MW Conemaugh Generating Station.
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Holcomb Station Low NOx Burner Replacement and Separated Overfire Air Installation
Sunflower Electric Power Corporation, Holcomb Station - Holcomb, KSReplacement of original dual register coal burners with Hitachi's new third generation low NOx burners.
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Conemaugh Electrostatic Precipitator Rebuild
Genon Energy Inc, Conemaugh Generating Station - New Florence, PASupply and install new electrostatic precipitator internals for Units 1 and 2 at the Conemaugh Generating Station.
Boiler/HRSG Services
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North Valmy Boiler Outage and DCS Upgrade
Sierra Pacific Power, North Valmy Generating Station - North Valmy, NVPlanned boiler outages for two units (Units 1 and 2) and distributed control system (DCS) upgrade.
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Keystone ID Fan Installation
Reliant Energy, Keystone Power Station - Shelocta, PARemoval and replacement of four Howden axial induced-draft (ID) fans.
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Willow Island and Pleasants Boiler Outages and Maintenance
Allegheny Energy, Pleasants and Willow Island Power Stations - Willow Island, WVMajor boiler outages, major scrubber modifications, and extensive maintenance services.
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Harrison Power Station Outages
Harrison Power Station - Haywood, WVPerformed consecutive major outages on Units 1, 2 and 3 at the 1,920 MW Harrison Power Station.
Balance of Plant
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Steam Plant No. 2 Power Plant Maintenance
Tacoma Public Utilities, Steam Plant No. 2 - Tacoma, WAMaintenance, modification and repairs for Tacoma Public Utilities (TPU) at the 50 MW Steam Plant No. 2.
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Colstrip Power Plant Maintenance and Construction
PPL Montana, Colstrip and J.E. Corette - Colstrip and Corette, MTOngoing maintenance, modification and construction at the 2,218 MW Colstrip and 154 MW Corette facilities since 1988.
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Boardman Power Plant Maintenance and Construction
Portland General Electric, Boardman Power Plant - Boardman, OROngoing maintenance, modification and construction since 2004.
Chimney Services
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Benning Road Stack Construction
Potomac Power Resources, Benning Road Generating Station - Washington, DCOn site stack construction at the 500 MW Benning Road Generation Station.
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Liberty Steel Stack Construction
Liberty Electric Power, Libery Electric Power Generation Plant - Eddystone, PAErected two 200’ tall x 19’ diameter steel stacks during construction of the Liberty Electric Power Generation Plant.
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Bruce Mansfield Steel Liner Construction
Bruce Mansfield Power Station - Shippingport, PARebuilt 450 feet of existing steel liner in a 1,000 foot chimney.
Substations & Switchyards
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Platte Substation Construction
PacifiCorp, Platte Substation - Sinclair, WYGreenfield expansion of the 230-115kV, 60/80/100 MVA Platte substation.
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Rolling Hills Switchyard Construction
Rolling Hills Generating Plant - Wilkesville, OHGreenfield construction of a four-breaker ring bus configuration, 765 kV switchyard.
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Renaissance Switchyard Construction
Renaissance Generating Station - Carson City, MIGreenfield construction of a four-breaker ring bus configuration, 345 kV switchyard.
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PACCAR Substation Transformer and Feeder Installation
Puget Sound Energy, PACCAR Substation - Renton, WAInstallation of a second 15/20/25 MVA, 115/13.09 kV transformer bank and feeders.
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Kingston Substation Construction
Puget Sound Energy - Kingston, WAGreenfield construction of a new 115 kV, 25 MVA distribution substation.
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Henry M. Jackson Hydroelectric Transformer Replacement
Snohomish PUD, Henry M. Jackson Hydroelectric Project - Sultan, WATransportation and installation of a 15/20/25 MVA generator step up (GSU) transformer.
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Ice Harbor Circuit Breaker Installation
Ice Harbor Switchyard - Walla Walla, WADisconnected and removed seven 115 kV oil circuit breakers, and replaced with seven 121 kV SF6 circuit breakers.
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Chimacum Distribution Substation Construction
Puget Sound Energy, Chimacum Distribution Substation - Chimacum, WAGreenfield construction of a new 115 kV, 25 MVA distribution substation.
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Bluegrass Switchyard Construction
Bluegrass Generating Plant - LaGrange, KYGreenfield construction of a four-breaker ring bus configuration, 345 kV switchyard.
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Discovery Center Distribution Substation Construction
Portland General Electric, Discovery Center Substation - The Dalles, ORGreenfield construction of a multiple transformer distribution substation.
Nuclear Fuel Storage Systems
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Maine Yankee VCC Construction
Maine Yankee Atomic Power, Maine Yankee Power Station - Wicasset, MEConstruction of 64 vertical concrete casks (VCC).
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Connecticut Yankee VCC Construction
Connecticut Yankee Atomic Power, Connecticut Yankee Power Station - Haddam Neck, CTConstruction of 43 vertical concrete casks (VCC).
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Palo Verde VCC Construction
Arizona Public Service, Palo Verde Generating Station - Palo Verde, AZConstruction of 104 vertical concrete casks (VCC).
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Catawba VCC Construction
Duke Power, Catawba Power Station - York County, SCConstruction of 48 vertical concrete casks (VCC) at the 2,258 MW nuclear power station located on Lake Wylie.
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Nine Mile HSM Construction
Constellation Energy Nuclear Group, Nine Mile Nuclear Station - Scriba, NYConstruction and assembly of 30 Horizontal Storage Modules (HSM).
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Trojan Decommission and Dismantlement
Portland General Electric, Trojan Nuclear Plant - Rainier, OROn-site contractor since 1985 at the 1,150 MW Trojan Nuclear Plant.
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LaCrosse VCC Construction
Dairyland Power Cooperative, LaCrosse Nuclear Plant - Genoa, WIConstruction of five (5) vertical concrete casks (VCC) at the LaCrosse Boiling Water Reactor Nuclear Plant.
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Arkansas Nuclear One VCC Construction
Entergy Nuclear, Arkansas Nuclear One Generating Station - Russellville, ARConstruction of 10 vertical concrete casks (VCC) at this decommissioned
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McGuire VCC Construction
Duke Power, McGuire Power Station - Mecklenburg County, NCConstruction of 48 vertical concrete casks (VCC).
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Zion VCC Construction
Exelon Corporation, Zion Nuclear Station - Zion, ILConstruction of 65 vertical concrete casks (VCC) at the decommissioned nuclear power station.
Hydroelectric Services
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Woods Creek Hydroelectric Maintenance
Snohomish PUD, Woods Creek Hydroelectric Project - Monroe, WAMaintenance for the 0.65 MW Woods Creek Hydroelectric Project.
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Wynoochee Hydroelectric Maintenance
Tacoma Public Utilities, Wynoochee Hydroelectric Project - Montesano, WASeveral construction projects for the 11 MW Wynoochee Hydroelectric Project located on the Wynoochee River.
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Mayfield Dam Hydroelectric Maintenance
Tacoma Public Utilities, Mayfield Dam - Lewis County, WASeveral spillway and gate repair and maintenance projects for the 162 MW Mayfield Dam.
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Tacoma Public Utilities Hydroelectric Maintenance
Tacoma Public Utilities, Various Facilities - WAMultiple low voltage electrical construction projects at several Tacoma Public Utilities facilities.
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Cushman 2 Hydroelectric Maintenance and Repair
Tacoma Public Utilities, Cushman 2 - Hood Canal, WARepair and maintenance on several projects for the Cushman 2 dam and powerhouse.
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Cushman 1 Hydroelectric Maintenance and Repair
Tacoma Public Utilities, Cushman 1 - Hood Canal, WARepair and maintenance on several projects for the Cushman 1 dam and powerhouse.
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Cowlitz and Blue Creek Hatchery Hydroelectric Maintenance
Tacoma Public Utilities, Cowlitz Salmon & Blue Creek Trout Hatchery - Lewis County, WAFabrication and installation of various valves, piping, and structures.
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TPU Cowlitz Falls Hydroelectric Maintenance
Tacoma Public Utilities, Cowlitz Falls Project - Lewis County, WARemoval, repair and installation of numerous integral components of the 70 MW Cowlitz Falls Project.
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Thompson Falls Hydroelectric Maintenance
PPL Montana, Thompson Falls Dam - Thompson Falls, MTMaintenance for the 94 MW Thompson Falls Dam located on the Clark Fork River.
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Packwood Hydroelectric Maintenance
Energy Northwest, Packwood Hydroelectric Project - Lewis County, WAConstructed concrete containment structure to house new fish screens installed in the tailrace.
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Mystic Lake Hydroelectric Maintenance
PPL Montana, Mystic Lake Dam - Billings, MTMultiple general maintenance projects at the 12 MW Mystic Lake Dam.
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Mossyrock Hydroelectric Turbine Generator Upgrades
Tacoma Public Utilities, Mossyrock Dam - Mossyrock, WAUpgrade of two 150 MW Francis turbines at the 300 MW Mossyrock Dam.
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PPL Montana Hydroelectric Maintenance
PPL Montana, Multiple Locations - MontanaMultiple maintenance projects at several hydroelectric projects located throughout central Montana.
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Ketchikan Hydroelectric Turbine Generator Upgrade
Ketchikan PUD, Ketchikan Hydroelectric Station - Ketchikan, AKMajor overhaul at the 6 MW Ketchikan Hydroelectric Station.
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Henry M. Jackson Hydroelectric Maintenance
Snohomish PUD, Henry M. Jackson Hydroelectric Project - Sultan, WAMaintenance for the 112 MW Henry M. Jackson Hydroelectric Project located in the Sultan River Basin.
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Hauser Dam Hydroelectric Maintenance
PPL Montana, Hauser Dam - Helena, MTMultiple general maintenance projects for the 19 MW Hauser Dam.
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Culmback Dam Hydroelectric Maintenance
Snohomish PUD, Culmback Dam - Snohomish County, WAMaintenance for the (George) Culmback Dam, a large rockfill hydroelectric and water supply dam located on the Sultan River.
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Lewis County Cowlitz Falls Hydroelectric Maintenance
Lewis County PUD, Cowlitz Falls Project - Lewis County, WARemoval, repair and installation of numerous integral components at the 70 MW Cowlitz Falls Project.
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Calispell Hydroelectric Maintenance
Pend Oreille County PUD, Calispell Hydroelectric Project - Usk, WAMaintenance for the Calispell Hydroelectric Project located on Calispell Creek in northeastern Washington State.
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Bradley Lake Hydroelectric Turbine Generator Upgrade
Homer Electric Association, Bradley Lake Hydroelectric Project - Bradley Lake, AKMajor overhaul of power nozzles at the 126 MW Bradley Lake Hydroelectric Project located at a remote site near Homer, AK.
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Box Canyon Hydroelectric Maintenance
Pend Oreille County PUD, Box Canyon Hydroelectric Project - Pend Oreille County, WAMaintenance for the 69 MW Box Canyon Hydroelectric Project located on the Pend Oreille River in northeastern Washington State.
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Boundary Dam Hydroelectric Maintenance
Seattle City Light, Boundary Dam Powerhouse - Pen Oreille County, WAElectrical installation services for the 4th and 6th floor powerhouse tunnel doors at the 1,050 MW Boundary Dam.
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Yelm Hydroelectric Turbine Generator Refurbishment
City of Centralia, Yelm Hydroelectric Project - Nisqually River, WAMechanical overhaul of units 1 and 3 at the 12 MW Yelm Hydroelectric Plant.
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Tacoma Public Utilities Alder Dam Hydrelectric Turbine Generator Upgrade
Tacoma Public Utilities, Alder Dam - Nisqually River, WAExtensive maintenance and repair work for Unit 12 at the Nisqually River Project Alder Dam.