YEC is a subsidiary of Yukon Development Corporation and was established in 1987 to take over the Yukon assets of the Northern Canada Power Commission.
YEC generates virtually all of Yukon's electricity supply, and distributes power to a third of the locations outside of Whitehorse. Their largest customer (a wholesale buyer) is the Yukon Electrical Company (YECL), a private business that has been operating since 1901, which itself has some smaller hydro operations, and serves primarily the Whitehorse area plus two thirds of the rural communities. YEC itself provides customer electricity directly in Dawson City, Mayo, Faro, Champagne and to some isolated individual customers.
YEC has developed a grid that connects hydro facilities in Whitehorse (Schwatka Lake Dam - 40 MW from four wheels, the fourth added in 1983), Aishihik Lake - 30 MW, and the YECL facilities at Fish Lake near Whitehorse. The communities on the "Whitehorse-Aishihik-Faro" grid include Whitehorse, Champagne, Johnson's Crossing, Faro, and the following communities where it is distributed by YECL: Haines Junction, Carcross, Tagish, Marsh Lake, Teslin, Carmacks and Ross River.
YEC operates two wind turbines on Haeckel Hill near Whitehorse connected to the Whitehorse-Aishihik-Faro grid. The first turbine is a Bonus Energy 150 kW MARK III installed in 1993. The second turbine, a Vestas 660 kW V47 LT II was later installed in 2000. These units need to be specially adapted to deal with icing and the northern environment.
A second grid, brought on-line in 2004, connects Dawson City (reliant on diesel power from 1966 to 2004) via Stewart Crossing to Mayo, and beyond to the YECL-served communities of Elsa and Keno City, all drawing on the 5 MW hydro facility just north of Mayo that had mines at Elsa as primary customer until 1989.
The government of John Ostashek (1992-1996) had promised to connect Mayo, Stewart Crossing and YECL-served Pelly Crossing to the main southern grid at Carmacks. During their mandate, and the subsequent N.D.P. and Liberal party mandates, this project was not developed, and Pelly Crossing remained on its own YECL diesel generator. The project was finally proceeded with during the later part of the 2000s, partly to meet power requirements for mines in the Minto area, and on June 17, 2011, the two grids began to operate together. The YECL generator at Pelly Crossing is now on standby to the grid.
Off the grid, Yukon Electrical Company Limited operates diesel generators to serve its customers in Watson Lake-Upper Liard, Swift River, Burwash Landing, Destruction Bay, Beaver Creek and Old Crow. The possibility of a grid connection to Atlin, British Columbia has probably been eliminated by a decision to construct a hydro project near Atlin, but talk in Atlin of an expansion could still raise that possibility.
Yukon has no connections to the continental power grid, therefore, YEC cannot sell to or buy from networks in Alaska, British Columbia, Alberta or the Northwest Territories. In addition to the extreme expense of such transmission lines, they would also be subject to disruption from solar flares.
Electrical Service by Community
|Name||Service Provider||Energy source||Notes|
|Beaver Creek||YECL||diesel plant||not on grid|
|Burwash Landing||YECL||diesel plant||not on grid|
|Canyon Creek (Mile 996 Alaska Hwy)||YECL||YEC grid|
|Dawson City||YEC||YEC grid||diesel backup (main power 1966-2004)|
|Deep Creek||YECL||YEC grid|
|Destruction Bay||YECL||diesel plant||not on grid|
|Elsa||not sure - possibly YECL||YEC grid|
|Haines Junction||YECL||YEC grid|
|Jake's Corner||YEC||YEC grid|
|Johnson's Crossing||YEC||YEC grid|
|Keno City||YECL||YEC grid|
|Lower Post, British Columbia||YECL||Watson Lake diesel plant||not on Yukon (Teslin) or B.C. grid (Fort Nelson)|
|Marsh Lake||YECL||YEC grid|
|Old Crow||YECL||diesel plant||not on grid|
|Pelly Crossing||YECL||YEC grid||diesel backup (main until 2011)|
|Ross River||YECL||YEC grid|
|Stewart Crossing||YECL||YEC grid||diesel backup (main until 2004)|
|Swift River||YECL||diesel plant||not on grid|
|Teslin||YECL||YEC grid||diesel backup (main until 1980s)|
|Upper Liard||YECL||Watson Lake diesel plant||not on grid|
|Watson Lake||YECL||diesel plant||not on grid|
|Whitehorse||YECL||YEC and YECL hydro facilities||diesel backup and auxiliary|
|Name||Location||Fuel||Units net capacity (Date)||Capacity (net MW)||Link|
|Dawson||Dawson City||Diesel generator||
|Haeckel Hill||Whitehorse||Wind Power||
|Whitehorse Rapids||Whitehorse||Diesel generator||