MidAmerican Energy Company Seeks Extension of Electric Transmission Line Franchise in Harrison County, Iowa

Strategic Insights -

MidAmerican Energy Company has filed a petition with the Iowa Utilities Board (IUB) to extend its electric transmission line franchise in Harrison County, Iowa. The petition, filed on August 3, 2021, seeks an extension of a 14.64-mile transmission line capable of operating at 69,000 volts (72,500 volts maximum). The transmission line is necessary to serve a public use in Harrison County and is part of MidAmerican's high-voltage bulk electric system.

Key Takeaways:

  • The transmission line is 14.64 miles long and operates at 69,000 volts (72,500 volts maximum).
  • The transmission line is necessary to serve a public use in Harrison County and is part of MidAmerican's high-voltage bulk electric system.
  • The petition was filed on August 3, 2021, and Staff has reviewed the exhibits and evidence submitted by MidAmerican.
  • Nine probable violations (PVs) were identified during an inspection on February 1, 2022, but all outstanding PVs have been cleared.
  • MidAmerican has provided proof of publication and holds all necessary easements or authorization for the lands and right-of-way upon which the line is located.
  • Staff has completed its review of the petition and exhibits and finds that the transmission line will be operated and maintained in a manner consistent with the requirements of the IUB.
  • No objections have been filed to the petition.

Statistics:

  • 14.64 miles: The length of the transmission line.
  • 69,000 volts: The operating voltage of the transmission line (72,500 volts maximum).
  • 3 lines: The number of transmission lines included in the petition.
  • 2 sub stations: The number of sub stations mentioned in the petition (Honey Creek and Logan).
  • 1999, July 9: The date of the original Franchise No. 17294 issued to MidAmerican.
  • 2010, November 3: The date of the first amendment to the franchise.
  • 2022, February 1: The date of the inspection report that identified nine probable violations.
  • 9: The number of probable violations identified during the inspection.
  • 3: The number of times MidAmerican filed revised exhibits and evidence addressing the probable violations.
  • 2: The number of dates mentioned for the clearance of all outstanding probable violations (May 26 and August 31).

Sources:

  • "Staff Report Regarding MidAmerican Energy Company's Petition for Extension of Electric Transmission Line Franchise in Harrison County, Iowa" by Iowa Utilities Board, E-21358 Docket No., October 4, 2022.