Post Rock Wind Farm

Overhead Line
Hooper Corporation
LDP Engineering
RMT, Inc.
Wind Capital Group

Hooper Overhead Line and Underground Crews Connect Power to 134 Turbines

  • Hooper crews worked on the construction of both the overhead transmission line and the underground electrical work, which began in 2011 and was completed in 2012.

Transmission Work

  • Hooper crews erected 30.5 miles of steel monopole structures that ran from Ellsworth to Lorraine, Kansas.
  • With an average pole height of 105 feet, 105 foot bucket trucks and cranes were necessary to complete this work.
  • Due to record high summer heat, crews had to sag and tension conductors, as well as pour concrete cassons in the early morning to avoid mid-day heat.
  • 954 ACSR “Cardinal” conductor and 24-count OPGW were utilized oon the 230 kV transmission line.
  • Since the project required the transmission line to be built within a major migratory bird path, helicopters were brought in to install bird diverters on the entire length of the line.

Underground Work

  • This portion of the project started in November 2011 and was completed in May 2012.
  • Hooper crews installed 73 miles of 35 kV underground collector cable connecting 134 GE ZLE 1.6 MW turbine generators. Cables ranged in size from 1/0 to 1250 MCM aluminum.
  • This project also included the installation of generator step-up transformers and foundations, termination of all power cables, and the installation of low voltage cable bundles from the GSUs to the GE power modules at each turbine.
Previous Project

Pilot Hill Wind Farm

Overhead Line

Next Project

City of Centerville Distribution Conversion

Overhead Line

See how we can help with your next project.