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PROJECT TYPE / CE 125 MW 90 Day Duration Scope: Installation of boiler waterwall tubes, and insulation studs, remove and replace all ductwork, burner nozzles, and all other attachments. PROJECT TYPE / B&W 625 MW 28 Day Duration Scope: Replace platen element U-bends, pad weld pendent, install boiler scaffolding from ash hopper to platens, replace lower slope tube panels, seal trough and screens in ash hopper, diffusers and nozzles on coal burners. Replace primary superheat attemperatiors (unit weight 12 ton - located on 10th floor, installed a permanent monorail system for this project). PROJECT TYPE / B&W 625 MW 10 Day duration Scope: Erect upper furnace platen work platform, padweld platen loops, waterwalls, repair burners, linkage nozzles, diffusers and deflectors, pad weld economizer header, repair soot blower lance guides, install arch nose blower tubes and wall boxes for soot blower, install header thermo couples, install cable drops, install wash beams, remove baskets, adjust seals in air heaters, install Hastelloy 276 to FGD outlet ducts. PROJECT TYPE / B&W 625 MW 120 Day Duration Scope: Field erect electrostatic carbon reducer separators including piping, structural steel, and conveyors. PROJECT TYPE / CE 125 MW 93 Day Duration Scope: remove and replace fuel delivery system, (mills, feeders, Lo Nox concentric burners - sofa duct work), S.H/R.H. crossover tubes and headers, total rebuild of upper precipitator and additional field installed, removal of lower precipitator. PROJECT TYPE / CE 125 MW 100 Day Duration Scope: Installation of high energy heat pipe modules, extensive ductwork replacements, installation of new I.D. Fans, installation of new P.A./F.D. Fans, remove and replace fuel delivery system, (mills, feeders, upper precipitator and additional field installed, removal of lower precipitator. PROJECT TYPE / CE 125 MW 518 Day Duration Scope: Installation of flue gas desulfurization plant. Prime contractor for installation after building shell completed, fabricated and installed ductwork (400 ton) for both units for absorber inlet and outlet to stack as building was erected, installed over 30,000 feet of mechanical piping varying in size up to 24" OD. (Piping Materials - carbon steel welded and screwed, PVC, CPVC, rubber lined, reinforced plastic, hastelloy, and stainless steel). Set and aligned all process pumps, tanks and equipment, field fabricated tanks, installed all insulation and lagging, all internal headers, demisters, turning vanes, etc. in absorbers. PROJECT TYPE / CE 125 MW 35 Day Duration Scope: Replace high temp reheater, superheater, roof seals, water cooled spacer, waterwall corner tubes above and below burners, install boiler furnace scaffold, rebuild upper slope refractory and upper arch casing, ashpit refractory belt expansion joints air heater outlet to precipitator. PROJECT TYPE / CE 125 MW 60 Day Duration Scope: replace all four walls of 3: O.D. tangent tubes including burner corners, soot blower and door openings, all buckstay clips, girth and tube ties, angles and rods. Installed new boiler setting - includes gas tight corten furnace casing door and soot blower settings, penthouse and convection area. All insulation and external corrugated aluminum casing ( original boiler design was refractory insulation and mastic setting). Replaced low temperature superheater, scaffold boiler furnace, rebuild burners, rebuild I.D. fan housings, install new wheels and shafts, insulate turbine. PROJECT TYPE / CE 125 MW 56 Day Duration Scope: Install ammonia injection and gas reburn equipment for boiler including ductwork, piping fans. PROJECT TYPE / (2)B&W 56 Day Duration Scope: Replace primary and secondary superheater elements and headers, sootblowers, attemperator piping, burner air registers, support steel, refractory, coal bunker bottoms, coal valves, and piping to pulverizers, coal piping from mills to burners, primary air fans. PROJECT TYPE / (2)B&W 50 Day Duration Scope: Replace all furnace waterwall tubing, refractory insulation and casing. PROJECT TYPE / CE 100 MW 50 Day Duration Scope: Replace economizer headers and elements, primary superheater elements, convective pass roof tubes, secondary superheater elements, screen wall tubes, install new boiler setting, remove and replace all insulation and refractory, install boiler casing (original boiler design was refractory, insulation and mastic setting), replace secondary super-heater crossover tubes, reheat desuperheater, front wall lower slope tubes, scaffold boiler, install sootblower tube openings and new sootblowers. PROJECT TYPE / CE 200 MW 56 Day Duration Scope: Retube the main condensor (16,000 tubes), new inlet and outlet expansion joints, install Lo Nox burner equipment, tube panels, sofa panels, sofa boxes, ductwork and expansion joints, windbox extension, new burner boxes, coal pipe toggles, hangers, ignitors and related piping. PROJECT TYPE / B&W 85 MW 28 Day Duration Scope: Replace primary S.H. elements, 1st and 2nd division wall tubes, primary furnace side wall pin studded tubes, bailey block on furnace floor, drum internals. PROJECT TYPE / CE 200 MW 28 Day Duration Scope: Replace nose arch and wall panels, L.T.S.H. horizontal assemblies partial replacement, L.T.R.H. channel (platen) inlet assembles, S.H. furnace and R. H. furnace front screen wall tubes, extended waterwall tubing including headers. PROJECT TYPE / CE 200 MW 49 Day Duration Unit was damaged by a combustion explosion. Scope: Fabrication and replacement of approximately 60 buckstays, pulled walls in furnace back to plumb with hydraulic equipment and steamboat ratchets, replaced extended waterwall tubes and casing, replaced house steel, gratings soot blower damaged by explosion. PROJECT TYPE / CE 200 MW 49 Day Duration Scope: Replace crossover tubes to S.H. outlet header, membrane wall panel replacement, desuperheat liners, gas duct expansion joints, and air heater seals. PROJECT TYPE / CE 200 MW 56 Day Duration Each Scope: Replace high temperature elements, Install Lo Nox burner equipment, tube panels, sofa panels, sofa boxes, ductwork and expansion joints, windbox extension, new burner boxes, coal pipe toggles, hangers, ignitors and related piping. PROJECT TYPE / CE BOILER 100 MW 56 Day Duration Scope: Replace secondary superheat elements, primary horizontal superheater elements, complete rebuild all refractory in the primary superheat box, air heaters, plate bundles removed and replaced with baskets, diaphragms, new sector plates, and seals, remove and replace drives, install new support beams, hangers and springs for support system of the crossover tubes, install and adjust all main steam and hot reheat hangers, replace 3" rear wall tubes, fabricated and install new plate supports for inlet fields of the precip, install wires and weights. Installation of furnace scaffold. PROJECT TYPE / CE 100 MW 60 Day Duration Each Scope: Install Lo Nox burner system, new windbox extensions, expansion joints, new burner boxes including COFA, new coal pipe hangers, and new burner corner tubes, replace 180 furnace wall tubes new refractory, fabricate and install shoe guides and buckstay tie backs casing. PROJECT TYPE / UNIT 4 42 Day Duration Scope: Replace expansion joints, perform precipitator maintenance and re-build boiler penthouse. PROJECT TYPE / UNIT 1 42 Day Duration Scope: Replace hanger lugs on main steam and hot reheat piping re-build FD fan and primary air fans including new housings, rotor shafts, wheel and bearings. PROJECT TYPE / UNIT 3 56 Day Duration Scope: Replace coal nozzle tips, scaffold boiler, waterwall tube repair, hanger supports, boiler feed pump installation, penthouse casing repairs. PROJECT TYPE / BOILER ASSEMBLY AND HRSG ERECTION Scope: Fabrication and complete assembly of various size package boilers including drums, tubes, refractory, superheater and piping. HRSG Field erections. PROJECT TYPE / PRIMARY COOLER 270 Day Duration Scope: Complete shop fabrication and field assembly of one 18' diameter x 85' high primary cooler. PROJECT TYPE / FLEX LABOR MAINTENANCE CONTRACT Scope: Various field erected boiler projects including Lo Nox conversion, superheater replacement, waterwall tubes and air heater replacement.

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