Marshalltown Generating Station is a 705.9MW gas fired power project. It is located in Iowa, the US. The project is currently active. It has been developed in single phase. Post completion of construction, the project got commissioned in April 2017.

Project Type Total Capacity (MW) Active Capacity (MW) Pipeline Capacity (MW) Project Status Project Location Project Developer
Thermal 705.9 705.9 Active Iowa, the US KBR


The project was developed by KBR and is currently owned by Interstate Power and Light.

It is a Combined Cycle Gas Turbine (CCGT) power plant.

The project cost is $645m.

The Gas fired project consists of 1 steam turbine with 260.5MW nameplate capacity.

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Development Status

The project got commissioned in April 2017.

Contractors Involved

KBR was selected to render EPC services for the gas fired power project.

Siemens was selected as the turbine supplier for the Gas fired project. The company provided 2 units of SGT6-5000F5 gas turbines, each with 222.7MW nameplate capacity.

Nooter Eriksen CCT supplied electric generator for the project.

Nooter/Eriksen supplied steam boiler for the project.

About KBR

KBR Inc (KBR) is a provider of engineering, construction, professional services and technologies. It offers specialized engineering and design, technology licensing, program management, construction management, consulting, operations, maintenance and other support services. KBR also provides a range of base and remote life support services, logistics, capability risk management, resilience planning and execution services and training to government agencies. The company serves oil and gas companies, independent refiners, petrochemical producers, fertilizer producers, specialty chemicals manufacturers, and federal and civil organizations. The company has operational presence in North America, the Middle East, Europe, Africa, and Asia-Pacific. KBR is headquartered in Houston, Texas, the US.


All power projects included in this report are drawn from GlobalData’s Power Intelligence Center. The information regarding the project parameters is sourced through secondary information sources such as electric utilities, equipment manufacturers, developers, project proponent’s – news, deals and financial reporting, regulatory body, associations, government planning reports and publications. Wherever needed the information is further validated through primary from various stakeholders across the power value chain and professionals from leading players within the power sector.