Specialty: Specialty Contracting

Corval Group was the mechanical contractor selected to erect a Vestas V82 wind turbine near the University of Minnesota’s Morris campus. The project was completed in some of Minnesota’s toughest winter conditions. Temperature dipped close to -30 degrees F followed by a 22” snowfall. Despite the adverse conditions, the...

Metropolitan Council Environmental Services (MCES) awarded Corval Group to be the General Contractor for the addition of a 750 KW non-condensing steam turbine generator set including associated turbine generator control panel in the Solids Management Building (SMB). Scope of work included addition of Generator Interconnection Circuit Breaker in existing...

Corval Group was the general contractor for CHS steam line and turbine install project. Scope of work included installation of a 12 ” steam and condensate line and 1,275 KW steam turbine. Challenges included working in a hexane extraction area with no sparks and resulted in another zero incident...

Corval Group added a steam line from the Energy Center in downtown Minneapolis to Target Field (home of the Minnesota Twins baseball team) and the Target Center (home of the Minnesota Timberwolves). The scope of work included installing condensate polishing and control telemetry systems....

Building on our relationship and experience with Hennepin County and Covanta Energy, Corval was awarded a contract for the rebuilding of the plume abatement system on the existing cooling tower. The HERC facility is owned by Hennepin County and is operated and maintained by Covanta Energy. The cooling tower...