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BluefishHydroelectricDam

ElectricalGenerationintheNWTTheNorthwestTerritoriesusesthreemainenergysources to generate electricity: water, diesel andnatural gas. Eight communities usehydroelectricity. The remaining 23 communitiesrely on diesel-fired power plants. Inuvik andNormanWellsusenaturalgas.

Figure1 -2013representativeofgeneration intheNWTduetounusuallylowwaterin2014-2015.

ElectricitySuppliersTherearetwomajorelectricitydistributersintheNWT.

• TheNorthwestTerritoriesPowerCorporation(NTPC),aGNWTCrownCorporation.

• Northland Utilities Limited (NUL) consists oftwo companies, NUL Yellowknife and NULNWT.

HowisElectricalEnergyMeasured?Electricalpower is therateofenergy flow,and ismeasuredinWatts(W).Electricalenergyisequalto electrical power multiplied by the time it isused, and is usually measured in Kilowatt-hours(kWh).

A gigawatt hour (GWh) is equal to one billionwatt-hours or one million kilowatt-hours. NWTcommunities used about 370 GWh in 2014-15

75.5%

22.7%

0.1% 1.8%

2013ElectricitySourcesinNWTCommunities

Hydro Diesel Solar NaturalGas

ElectricalGenerationintheNWT

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NWTPowerPlantsandTransmissionLines

Figure2-Yellowlinesarethetransmissionlinesconnectinghydroelectricsitestocommunities

KeyFacts• LiquidNaturalGas(LNG)isusedforpower

generationinInuvik.• ImperialOilinNormanWellssuppliesNTPC

withnaturalgasfiredelectricity.• Outsideoflowwateryears,whichhappen

everyeighttotenyears,theNorthSlaveregionhasa30%surplusinenergyavailable.

• TheSouthSlavehydroelectricgridhasan8MWsurplushydroelectriccapacity.

• Morethan75%oftheelectricityprovidedtocommunitiescomesfromrenewablehydroelectricity.

ElectricalGenerationintheNWT

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PowersPlantsbyLocation,InstalledCapacity,OwnerandType

DieselElectricityLocation MW Owner Type

25communities 65NorthwestTerritoriesPowerCorporation

(NTPC)Diesel

5communities 8 NUL(NorthlandUtilitiesLimited) Diesel

4mines 113 Various Diesel

NaturalGasElectricityLocation MW Owner Type

NormanWells 15 ImperialOilLimited(IOL) NaturalGas

Inuvik 8 NTPC NaturalGas

RenewableElectricityLocation MW Owner Type

SnareGroup 29 NTPC HydroelectricBluefish(YellowknifeRiver) 8 NTPC HydroelectricTaltson 18 NTPC HydroelectricDiavik 9 Mine WindVariousLocations 1 Various Solar

MWvaluehavebeenrounded

ElectricalGenerationintheNWT

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SnareHydroelectricPlant

TransmissionLineontheSnareSystem

Diesel-fuelledElectricityGenerator