Marshalltown Generating Station

staff walks facility exterior

Marshalltown Generating Station

A natural gas-fired power plant focused on the future of the community it serves.

Marshalltown Generating Station is a one-of-a-kind power plant for the state of Iowa. The 650 MW combined cycle natural gas-fired facility generates environmentally responsible power for 500,000 Iowa homes. 

After developing a longstanding relationship working with Interstate Power & Light, we were brought in as owner’s engineer to help oversee the Marshalltown Generating Station project from the ground up. Working alongside the IPL team, we took on owner’s engineer services, from developing contracting strategies, project cost estimates and schedules, to prequalifying contractors and reviewing technical designs. Additional services provided include construction and commissioning reviews of installations, as well as instruction manuals, operating procedures and performance tests. Alongside IPL, we completed the project within the established budget and time, and passing all functional and performance tests to begin commercial operation.

Along the way our sustainability team was brought in to guide the effort which ultimately led the plant to achieve Envision Platinum Verification. This is the highest level to be awarded under the Envision Sustainability Rating System. Marshalltown Generating Station sets the bar high as a reliable power plant that’s focused on sustainably while maintaining safe and reliable service for Iowa customers. 

staff walks facility exterior
Client
Interstate Power & Light (Alliant Energy)
Location

Marshalltown, IA
United States

Awards

Shortlist, Award of Excellence - Power (2018)
Platts Global Energy Awards
S&P Global Platts
Shortlist, Engineering Project of the Year (2018)
Platts Global Energy Awards
S&P Global Platts
Honor Award (2018)
Engineering Excellence Awards
American Council of Engineering Companies
Grand Award (2018)
Engineering Excellence Awards
American Council of Engineering Companies of Iowa