Rebuilding the 120-kV lines in Gatineau and L’Ange-Gardien

G E N E R A L I N F O R M AT I O N • S eptember 2014

Project descriptionIn order to modernize its electrical system, Hydro-Québec plans to rebuild the lines of its 120-k V network, mainly located in the city of Gatineau.

Between the Vignan and Produits-Forestiers-Résolu substations in Gatineau, Hydro-Québec proposes rebuilding one of the two current lines and dismantling the other.

In addition, the line section that stretches to Templeton substation, also located in Gatineau, will be rebuilt, as will the section between Templeton and Interconnexion-Maclaren substations, in the Masson-Angers sector of Gatineau.

Commissioning will take place in 2018.

Project justificationHydro-Québec must modernize and secure its high-voltage transmission system in order to maintain the quality of power supply for all of its residential and industrial customers in Gatineau and its surroundings.

The company makes decisions based on the age, condition and performance of its high-voltage transmission system and its components.

Hydro-Québec proposes dismantling and rebuilding the lines to better meet current standards, including resistance to ice-loading and heavy winds.

2

?

?

?

?

Vignan substation

Tourainesubstation

Gatineau substation

Templeton substation

Poste de Buckingham

Erco Mondialsubstation

Produits-Forestiers-Résolu substation

Interconnexion-Maclarensustation

Outaouaissubstation

Gatineausector

Masson-Angerssector

Buckinghamsector

1101

151-1

52

1105-1373

1103-1106

1101

(D3)-

1101

(P)

1371-1371(P)

1102-1368

1101(D3)

1101

(D2)

-110

4(D2

)

1102-1368(D1)

1101(D2)

1368

151-152

3117-31181101(D3)-1101(P)

1104(D2)

1102(D1)-1368(D2)

1101

1101-1104

3052-30533121-3122

3117-3118

1105-13731371-1371(P)

3117-3118

To Rapides-Farmerand Limbour substations

To Petite-Nation substation

To Thursosubstation

To Vignan substation

Rivière des Outaouais

Rivière Blanche

Ruisseau Noueux

Rivi

ère

Blan

che

C ours

d'e

au

Dalto

n-Be

rger

on

Lac Donaldson

Ruisseau Charbonneau

BaieCarpentier

Petite rivière Blanche

Ruisseau C

lément

LacCharbonneau

LacBeauchamp

Riv

ière

du

Lièv

re

Baie Clément

Rivière Blanche

Baie McLaurin

Chemin Filion

Chemin ProulxChemin Saint-Thomas

Boulevard Saint-René Est

Autoroute de l'Outaouais

Autoroute de l'Outaouais

Chemin Saint-Columban

Mon

tée

P

aiem

ent

Mon

tée

Dal

ton

50

50

50

Chemin de Bellechasse

Mon

tée

Sain

t-Am

our

Mon

tée

Min

eaul

t

Boulevard Maloney Est

B

oulevard Lorrain

366

148

Che

min

Pro

ulx

Chemin de

Bou

leva

rdde

l'H

ôpita

l

Bou

leva

rd L

abro

sse Chemin Industriel

366

366

148

Les Collines-de-l'Outaouais (MRC)

Gatineau (TÉ)

Les

Col

lines

-de-

l'Out

aoua

is (M

RC

)

Gat

inea

u (T

É)Gatineau (TÉ)

Gatineau, V

Val-des-Monts, M

Cantley, M

L'A

nge-

Gar

dien

, M

Val-d

es-M

onts

, M

Val-des-Monts, M

L'A

nge-

Gar

dien

, MG

atin

eau,

V

Gatineau, V

Gatineau

Hawthorne

MaclarenInterconnection

Genesee & Wyoming Canada Inc.

Montréal Ouest

#*

#*

#*

#*

#*

#*

#*

#*

#*

Gatineau-OttawaExecutive Airport

75°30'

75°30'

75°35'

75°35'

75°40'

75°40'

75°25'

45°3

6'

45°3

3'

45°3

3'

45°3

0'

Substations and transmission lines

120 kV

230 kV

315 kV

Study Area BoundariesMunicipality

1101

0 600 1 200 m

7377_bu_geq_001_140827a.mxd

#*#*

#*

?

?

MTM, Zone 9, NAD83

Interconnection

Line to be dismantled (120 kV)

Line to be rebuilt (120 kV)

Circuit number(voltage color)

Regional county municipality (MRC) orequivalent territory (TÉ)

Defining the study area Hydro-Québec has defined a study area to take into account various technical and environmental issues related to rebuilding high-voltage lines.

It covers an area of approximately 28 km2. It is mainly located in the city of Gatineau (24.5 km2) and occupies a smaller area (3.5 km2) in the southern part of the municipality of L’Ange-Gardien (MRC des Collines-de-l’Outaouais).

From Vignan to Produits-Forestiers-Résolu substations, both located in the Gatineau sector, the study area covers 100 m on either side of the existing lines.

In the eastern part of the Gatineau sector, the study area covers some 200 m on either side of the existing line given its orientation with respect to the built environment.

Near Templeton substation, east of Boulevard Lorrain (Route 366), the study area widens to take into account the presence of Gatineau-Ottawa Executive Airport, in the eastern part of Gatineau. Widening the area simplifies the process of examining where the line to be rebuilt crosses Highway 50 in the Gatineau and Masson-Angers sectors in the city of Gatineau as well as in L’Ange-Gardien.

3

?

?

?

?

Vignan substation

Tourainesubstation

Gatineau substation

Templeton substation

Poste de Buckingham

Erco Mondialsubstation

Produits-Forestiers-Résolu substation

Interconnexion-Maclarensustation

Outaouaissubstation

Gatineausector

Masson-Angerssector

Buckinghamsector

1101

151-1

52

1105-1373

1103-1106

1101

(D3)-

1101

(P)

1371-1371(P)

1102-1368

1101(D3)

1101

(D2)

-110

4(D2

)

1102-1368(D1)

1101(D2)

1368

151-152

3117-31181101(D3)-1101(P)

1104(D2)

1102(D1)-1368(D2)

1101

1101-1104

3052-30533121-3122

3117-3118

1105-13731371-1371(P)

3117-3118

To Rapides-Farmerand Limbour substations

To Petite-Nation substation

To Thursosubstation

To Vignan substation

Rivière des Outaouais

Rivière Blanche

Ruisseau Noueux

Rivi

ère

Blan

che

C ours

d'e

au

Dalto

n-Be

rger

on

Lac Donaldson

Ruisseau Charbonneau

BaieCarpentier

Petite rivière Blanche

Ruisseau C

lément

LacCharbonneau

LacBeauchamp

Riv

ière

du

Lièv

re

Baie Clément

Rivière Blanche

Baie McLaurin

Chemin Filion

Chemin ProulxChemin Saint-Thomas

Boulevard Saint-René Est

Autoroute de l'Outaouais

Autoroute de l'Outaouais

Chemin Saint-Columban

Mon

tée

P

aiem

ent

Mon

tée

Dal

ton

50

50

50

Chemin de Bellechasse

Mon

tée

Sain

t-Am

our

Mon

tée

Min

eaul

t

Boulevard Maloney Est

B

oulevard Lorrain

366

148

Che

min

Pro

ulx

Chemin de

Bou

leva

rdde

l'H

ôpita

l

Bou

leva

rd L

abro

sse Chemin Industriel

366

366

148

Les Collines-de-l'Outaouais (MRC)

Gatineau (TÉ)

Les

Col

lines

-de-

l'Out

aoua

is (M

RC

)

Gat

inea

u (T

É)

Gatineau (TÉ)

Gatineau, V

Val-des-Monts, M

Cantley, M

L'A

nge-

Gar

dien

, M

Val-d

es-M

onts

, M

Val-des-Monts, M

L'A

nge-

Gar

dien

, MG

atin

eau,

V

Gatineau, V

Gatineau

Hawthorne

MaclarenInterconnection

Genesee & Wyoming Canada Inc.

Montréal Ouest

#*

#*

#*

#*

#*

#*

#*

#*

#*

Gatineau-OttawaExecutive Airport

75°30'

75°30'

75°35'

75°35'

75°40'

75°40'

75°25'

45°3

6'

45°3

3'

45°3

3'

45°3

0'

Substations and transmission lines

120 kV

230 kV

315 kV

Study Area BoundariesMunicipality

1101

0 600 1 200 m

7377_bu_geq_001_140827a.mxd

#*#*

#*

?

?

MTM, Zone 9, NAD83

Interconnection

Line to be dismantled (120 kV)

Line to be rebuilt (120 kV)

Circuit number(voltage color)

Regional county municipality (MRC) orequivalent territory (TÉ)

Technical and environmental considerations In light of current knowledge, the main technical and environmental considerations related to the rebuilding of these 120-kV lines are the following:

• sensitive elements such as wildlife, the built environment, wetlands and cultivated land

• passing through protected agricultural land• visual integration of the new facilities• presence of a highway• presence of an airport

Ce document est également publié en français. This is a translation of the original French text. 2014E0156-A

StudiesIn the coming months, Hydro-Québec will carry out environmental inventories and technical surveys in the study area to better understand the host environment.

Once these studies are completed, the project team will propose solutions for the rebuilding of these lines. The solutions will be subject to comparative analyses based on environmental, technical and economic criteria, as well as community concerns. This detailed analysis will be used to determine the solution with the least impact.

Public participationFavorable reception from local communities is an essential condition for Hydro-Québec projects. As a result, the company will implement a public participation and consultation process to ensure that project studies are carried out in collaboration with the host communities. The company will thus be able to take into account the concerns and expectations expressed by the public and by key stakeholders so as to best adapt the project to local realities.

InformationFor more information on the project, contact:

Julie LéonardAdvisor – Community Relations – LaurentidesDirection – Affaires régionales et collectivitésE-mail: leonard.julie@hydro.qc.ca

Info-project line 1 8 0 0 4 6 5-1 5 2 1, ext. 6 0 2 2

hydroquebec.com

Printed on paper made in Québec from 100% postconsumer recycled fibre.