ST. LOUIS —Mechanical contractor Haberberger Inc., based here, was recognized by the Associated General Contractors (AGC) of St. Louis for its work on Ameren Missouri’s Maryland Heights Renewable Energy Center. AGC St. Louis presented Haberberger with a Keystone Award at the 16th annual Keystone Awards ceremony in November. The annual awards honor St. Louis construction firms for their achievements in building the facilities that support and enhance the quality of life in Greater St. Louis.

Haberberger was recognized as a Specialty Contractor/Subcontractor in the category of Industrial/Infrastructure projects over $5 million. A five-judge panel selected Haberberger and the other winners based on the challenges each firm faced during construction and their effectiveness in achieving solutions. Haberberger, which oversaw work on the mechanical, plumbing and HVAC systems during construction of the Renewable Energy Center, was faced with a very challenging schedule, with over 800 RFIs and 176 piping design changes. Even with these challenges, Haberberger was able to complete the project 108 days ahead of schedule and under budget. The project was completed in 2012.

The Maryland Heights Renewable Energy Center is located in Champ, Mo., at the IESI landfill and is one of the largest landfill gas-to-electricity generating energy centers in the United States. The landfill generates methane gas, which is collected and used in gas turbine generators.  These generators produce 15 megawatts of electrical power, or enough for roughly 10,000 homes.

Project Manager Pat Reilly, Pipefitter Superintendent Tim Waldorf and Sheetmetal Superintendent Dan Hancock led Haberberger’s team on the project. Construction management and engineering was overseen by HR Green, of St. Paul, Minn. Subcontractors included Bieg Plumbing, Dynamic Controls and Thornburgh Insulation.

Haberberger, Inc. is a 65-year-old mechanical contracting company that offers complete HVAC installation, customized maintenance programs, process piping and piping fabrication, and refrigeration and energy management services to a variety of industrial and commercial customers. Additional information is available at