Wind Energy for Remote Telecommunications Sites-A Case History

This paper discusses in detail the design, installation and operation of an independent power system for a UHF repeater operated by the Canadian Broadcast Corporation. This remote, helicopter-access-only, site is located on Pigeon Mountain in Exshaw, Alberta, above the Trans-Canada Highway. At 9000 feet elevation with a 2000 foot cliff surrounding three sides this site experiences very high winids and turbulence. A North Wind high reliability HR2 wind electric system was installed in October 1981 to provide power for 335 watt connected load. This paper will describe the initial system planning, site analysis, installation procedure, operational and performance history, as well as, the economic benefits to CBC. CBC engineers have confirmed the capability of the HR2 to support the load since the installation of the HR2. It has been estimated that savings due to reduced fuel costs and helicopter trips will result in payback for this system in less than 30 months. The conclusions to be drawn from this case history are that wind energy conversion systems have excellent economics for remote communications sites and that systems such as the HR2 can provide increased versatility to the communications engineer in terms of site location and operation.