Coast-to-Coast Capabilities

Coast-to-Coast Capabilities

Weston Unit #4 Turnkey Project

Project Location: Rothschild, WI Office

Owner: Wisconsin Public Service

Contractor: Kiewit Power Constructors Black & Veatch (balance of plant)

APi Construction worked under two separate contracts with two major general contractors to supply and install all the insulation materials for this 550-MW grassroots coal-fired power plant. Weston Unit #4 required APi to insulate 212,000 SF of conventional insulation on a Babcock & Wilcox (B&W) 550-MW supercritical coal-fired boiler, two B&W selective catalytic reduction systems, and the associated hot-side ductwork. APi also installed more than 230,000 SF of our Type I Prefabricated Insulation Panels on two B&W spray dryer absorbers (SDA), a B&W fabric filter dust collector, and the associated ductwork. In addition, APi installed all the plant's pipe insulation and jacketing on the boiler piping, balance of plant, and a Toshiba steam turbine-generator.

Baghouse before hopper enclosure installed
Weston ammonia injection grid
Weston baghouse and I.D. fans
Weston baghouse and SDAs
Weston spray dryer absorber and ductwork