A total of 6 MW of emergency backup generators was approved Aug. 6 by the Alberta Utilities Commission for an expansion of the Calgary airport.
AECOM, on behalf of the Calgary Airport Authority (CAA), filed an application with the commission for approval of an exemption to Section 11 of the Hydro and Electric Energy Act for the proposed construction and operation of an emergency backup generator at the Calgary International Airport, in accordance with Section 13 of the Hydro and Electric Energy Act. The emergency backup generators are for the new international terminal expansion.
AECOM intends to add four 1.5-MW diesel generators to provide emergency and standby power to the facility in the event of a utility power failure. The generators would be located in a separate peripheral building.
In addition, in the new terminal building, four 380-kW natural gas cogenerator units were planned to provide hot water and electricity. These generators would only be used during the heating season.
The generators would only be used in the event of an emergency and for peak shaving. However, AECOM submitted that the safety code requires monthly testing of the generators be done by interconnecting and paralleling each generator separately to the Calgary International Airport electrical distribution system for one daylight hour per month. AECOM provided an email from ENMAX Corp. stating that ENMAX was aware of the interconnection application for the generators, but did not provide the final approval. The ENMAX review of the interconnection request is in progress.