The company will provide engineering, procurement and construction services on approved projects to extend the life cycle of major components for continuous operation of the power plant for 20 more years.
Earlier this year, Shaw conducted a feasibility study for potential life cycle management upgrades and modifications to the plant.
The Cook Nuclear Plant is located just north of the city of Bridgman in Berrien County and has two reactors.
The facility is owned by American Electric Power and is operated by its subsidiary Indiana Michigan Power.