CB&I Stone & Webster has won an engineering, procurement and construction (EPC) contract from Indianapolis Power & Light Company (IPL) for a combined-cycle gas turbine (CCGT) power station near Martinsville.
The EPC contract is valued at more than $500m.
To be built adjacent to the existing Eagle Valley station, the plant will be equipped with General Electric's 7FA.05 series gas turbines, which will generate 671MW of electricity.
IPL said that the selection of the gas turbines was based on cost, performance and long-term maintainability.
On-site construction of the CCGT will begin in 2015, while engineering and procurement for will begin immediately.
The CCGT is expected to come online in 2017.
In May 2014, IPL has received approval from the Indiana Utility Regulatory Commission (IURC) for its request for a Certificate of Public Convenience and Necessity (CPCN).
The approval allows the company to invest around $600m into a new CCGT and $36m to convert Units 5 and 6 at the Harding Street Generation Station from coal to natural gas.
The conversion of Harding Street Units 5 and 6 will be complete by mid-2016.
CB&I's engineering, construction and maintenance operating group president Patrick K Mullen said, "This award continues CB&I's history of successful combined-cycle gas turbine EPC projects and exemplifies CB&I's expertise in helping Indianapolis Power & Light Company meet the growing demand for clean, affordable and reliable energy."