Dayton Power and Light (DP&L), in an Aug. 1 filing submitted with the Public Utilities Commission of Ohio (PUCO), requested that the docket involving its proposed West Milton-Eldean 138-kV Transmission Line Project be closed.
The docket, PUCO Case Number 14-0469-EL-BTX, was opened and a pre-application notification letter was filed with the Ohio Power Siting Board (OPSB) in March 2014, the company said.
“Since that time, the project was delayed and OPSB staff recently informed DP&L that, in staff’s view, the project would have to be re-filed with a new case number,” the company said. “DP&L is willing to proceed forward on this basis and, thus, DP&L is not anticipating any further filings of docket 14-0469-EL-BTX and requests that this docket be closed.”
DP&L said that it will file a new application for the same project in the near future.
A company spokesperson on Aug. 10 told TransmissionHub that the OPSB has required the company to rewrite and submit to the OPSB an application to conform to new rules, which starts the process over.
"Our plan is to have another open house meeting and submit the application to" the OPSB by the end of the year, she said, adding that the expectation is to have approval in 2019, with construction starting in 2021, and the project being in service in 2022.
The project was delayed as the company investigated schedules and budgets to best fit system loading and PJM Interconnection requirements, the spokesperson said.
"By the time a favorable internal and PJM schedule were established the rules changed and sufficient time had passed," she said. "This resulted in the board requesting we refile based on new rules."
As TransmissionHub reported, DP&L, a wholly owned subsidiary of AES Corporation, on May 17 filed with the OPSB an application for a certificate of environmental compatibility and public need for the project, which involves the construction of a single-circuit transmission line within Miami County, Ohio.
The proposed circuit would ensure that adequate transmission system voltages are maintained in the northwest area of the DP&L transmission system under various outage conditions, as required to comply with the mandatory NERC reliability standards, DP&L said.
It was through PJM Interconnection’s planning process that the need for the proposed project was identified, the company said, adding that the Regional Transmission Expansion Planning (RTEP) contingency analysis showed that under the multiple contingency of DP&L’s Shelby-Sidney 138-kV Circuit and DP&L’s Miami-Eldean 138-kV Circuit, voltages would be below the minimum acceptable level per NERC reliability criteria at eight transmission buses.
That multiple contingency would effectively leave the northwest area of the DP&L transmission system without a 138-kV source, the company said, adding that the new 138-kV circuit would mitigate that situation and ensure compliance with the mandatory NERC reliability standards.
The proposed project would consist of the construction and operation of the single 138-kV circuit line for improved reliability of electric service for DP&L’s northwest area of their service territory, the company said, adding that some portions of the line would be underbuilt with a 12.5-kV electric distribution line where the proposed route is co-located with an existing overhead electric distribution line – primarily along public road right of way (ROW).
The project would originate at the existing West Milton substation, located just south of the village of West Milton in Miami County, Ohio (Union Township), DP&L said. The project would extend along the west side of West Milton – outside of the village’s limits – to a point south of the town of Ludlow Falls, then head east adjacent to State Route 55, north adjacent to Forest Hill Road, and then across agricultural land toward the northwest (Concord Township) until the route reaches the Eldean substation, located on Experiment Farm Road, DP&L said. Both the preferred and alternate route are 16.6 miles long, the company said.
The project is located predominantly in a rural and agricultural setting, but portions of the transmission line routes occur along road ROW where there are intermittent residences located in that rural setting, the company said. About 80% and 76% of the corridor review area –200 feet wide – for the preferred and alternate routes, respectively, are comprised of agricultural land, DP&L said, adding that much of the remainder of the land for both routes consists of open land, residential lots, pasture land and forests.
Impacts to agricultural land uses due to operation and maintenance of the project are expected to be relatively minor in light of the overall percent of crop land that may be removed from cultivation due to new transmission structures, the company said.
The preferred and alternate routes are co-located with either road ROW or existing transmission line ROW (DP&L-owned) that accounts for 11.2 miles and 8.9 miles, respectively, of the total 16.6-mile lengths, the company said.
The number of residences within 1,000 feet of the preferred route is 195, DP&L said, adding that 20 of the residences are within 100 feet of the route. There are 297 residences within 1,000 feet of the alternate route, 10 of which are within 100 feet, the company noted.
According to the filing, the preferred route has a total estimated cost of about $9.9m, while the alternate route has a total estimated cost of $10.2m.
According to the project’s schedule, construction is set to occur from June 2021 to May 2022.
Article amended at 10:32 a.m., EST, on Friday, Aug. 10, 2018, to include comments from the company spokesperson.