Rolling Hills Generating Station...
A Conversion to Better Serve the Region

Since 2003, Rolling Hills Generating Station has met the region’s electricity needs when demand is the highest on short notice. Now, a new role is being developed for the plant, that of a combined-cycle generating station able to scale its power output to meet both peak periods of demand and ongoing baseload power needs.

The Rolling Hills Generating Station today is a five-combustion-turbine “peaker” plant using natural gas-fueled combustion turbine-generator sets. It can provide power quickly — in about 30 minutes — in times of high energy demand, such as hot or cold days. A plan has been developed to combine four of the combustion turbine-generator units with two steam turbine-generator units to become a combined-cycle generating station. The plan is to continue to operate one unit in simple-cycle, or “peaking,” mode.

Converting the peaker units into the combined-cycle plant will bring:

  • More than 400 workers at peak of a 30-month construction period;
  • A boost to the local economy as hundreds of millions of dollars are spent on construction;
  • Additional well-paying, full-time operations jobs;
  • An increased investment in equipment; and
  • Reliable power to meet the energy needs of approximately 1.4 million households.

  • Like the current “peaker” plant, the combined-cycle conversion will produce very little impact on local services, such as schools, public safety and roads, when in operation.

    The formal filings for converting the plant have been completed. A request to interconnect the converted plant with the PJM Interconnection regional electric grid was filed, and studies by PJM showed the converted plant would have no negative impacts on the transmission system. The Ohio Power Siting Board issued a Certificate of Environmental Compatibility and Public Need in May 2013. An air quality permit was issued by the Ohio Environmental Protection Agency in May 2015.

    The earliest date the conversion project would be operating is in 2018, but that is dependent upon a demonstrated need for new baseload generation in Ohio.