Rolling Hills Generating seeks permits for Ohio uprate project

Sponsored by

The U.S. Army Corps of Engineers is taking comment until July 8 on a Clean Water Act application from Rolling Hills Generating LLC related to a planned conversion of a simple-cycle power plant into a combined-cycle power plant.

The Rolling Hills Generating Facility is located north of the Village of Wilkesville in Vinton County, Ohio. The upgrade project would involve construction of two water lines in a single right-of-way corridor from that location to the southeast and terminating at the Ohio River in Meigs County, Ohio.

The project proposes a water intake structure on the Right Bank at Ohio River Mile Point 255.1, according to GenerationHub.

“The applicant is proposing to convert the current Rolling Hills Generating Facility from a simple cycle electric generating facility to a combined cycle electric generating facility,” said a Corps notice. “The current generating facility utilizes a simple cycle combustion process via five natural gas fired combustion turbines. The conversion would require expansion and redevelopment of the current generating facility, adding four heat recovery steam generators and two steam generators to four of the combustion turbines. One combustion turbine would remain as a simple cycle unit.”

The converted generating facility would require outfall and intake structures at the Ohio River. Installation of a pump station and access road near the outfall and intake structures would not fill any waters of the U.S. Installation of the intake structure would require dredging and placement of rip-rap and would permanently fill about 0.12 acres below the ordinary high water mark of the Ohio River to an average depth of 2.0 feet. Annual maintenance dredging at the intake structure would be required to an average depth of 5.0 feet.

This conversion project would permanently fill six wetlands totaling 0.67 acres, a 0.014 acre pond, and six ephemeral streams totaling 1,928 linear feet at the Rolling Hills Generating Facility site. These streams and wetlands are currently located just outside the power block fence line and would be permanently filled to accommodate the expanded footprint required for the conversion.

In May 2013, the Ohio Power Siting Board authorized Rolling Hills Generating to increase the capacity of its existing natural gas-fired facility in Wilkesville from 860 MW to 1,414 MW. The proposed conversion was estimated at that point to cost $865 million and would result in a combined-cycle natural gas-fueled generating facility with a capacity of 1,414 MW.

Conversion of the plant would use all five of the existing Siemens 501FD2 natural gas-fired combustion turbine generators. One combustion turbine would remain in simple-cycle configuration with a nominal output of 172 MW. Four of the five combustion turbines would be coupled to Heat Recovery Steam Generators and each would be equipped with 550 million British thermal units per hour (MMBtu/hour) duct burners. Each pair of gas combustion turbines would be combined with HRSGs and a steam turbine generator set to create 2x1 power blocks, each with a nominal output of about 621 MW.

This company is affiliated with Tenaska Capital Management LLC.

Sponsored by

Get All the Utility Products News Delivered to Your Inbox

Subscribe to Utility Products or email newsletter today at no cost and receive the latest news and information.

 Subscribe Now


October 2015
Volume 19, Issue 9

Utility Products Topics

Transmission & Distribution
                       Vehicles & Accessories
Tools & Supplies   Safety
Line Construction & Maintenance   Test & Measurement

How to deploy mobile forms + devices to speed up field service processes & reporting

Overcoming the pain points associated with any process is much simpler and more cost effective than you think. This webinar will detail the benefits of switching to mobile forms for field data collection and reporting.
We'll examine real use cases and ROI of integrating mobile forms within a given field service process, including for work orders, inspections, checklists and proposals.
A quick AT&T Mobile Forms demo will reveal the feature rich, user-friendly nature of the solution. You'll see why it’s a must-deploy to speed up data collection, eliminate invoicing/data entry lags and auto-generate/deliver insightful reports.



Industry Company Pages

Keep up-to-date with the latest news and articles from some of the prominent utility product companies and resources.


Everlast Substation signs

Everlast safety signs and Everlast Substation signs meet all ANSI and OSHA requirements and continue to be readable for the life of the substation. When most signs fail ours shine.

Everlast pole tags

Everlast pole tags for distribution poles have been used all over the world in this great earth's worst environment's proving it is the longest lasting product to use on pole's!

Swage Bus Accessories

Swage Bus Accessories use a compression technology process called "swaging" that enables installation of aluminum bus accessories without the need of a welder.