Hertel–New York Interconnection

Project description Hydro-Québec TransÉnergie has asked Hydro-Québec Équipement et services partagés to carry out a draft-design study for the construction of an approximately 50-km long, 320-kV underground direct-current (DC) line between Hertel substation (in La Prairie) and the U.S. border (near Lac Champlain).

The project also includes a converter at Hertel substation, which will convert alternating current to direct current to supply the new interconnection.

On the U.S. side, the Champlain Hudson Power Express (CHPE) project will supply New York City with energy coming from Canada. The project includes plans to build an underground and underwater DC line between the Canada–U.S. border and New York City, spanning some 530 km.

InformatIon on the solutIon selected • September 2013

2

Description of the route selected From the start of the draft-design study, Hydro-Québec had delineated a vast study area (793 km2) in order to have the best possible knowledge of the territory. This exercise allowed the company to define and study various potential line routes. Based on technical and economic criteria and the initial results from environmental surveys, one line route, which included two variants in its southern section, stood out.

This line route was presented during public consultation activities which took place between May and July 2013.

Following these activities as well as ongoing technical and environmental studies, the selected line route was confirmed. The route has a total length of 58 km:

• In the northern part of the route, starting at Hertel substation, the line runs along the right-of-way of the 735-kV Hertel–Châteauguay line for 13 km.

• Along Highway 15, on the eastern side, the line will be built in the right-of-way of the Ministère des Transports du Québec (MTQ), over 32.5 km. The exact location of the line will be determined in collaboration with the MTQ.

• In the southern part, in Saint-Bernard-de-Lacolle and Lacolle, two line variants were studied to bring the line to the Canada–U.S. border.

The first variant runs along the Montée Guay right-of-way.

The second variant uses the rights-of-way for routes 202 and 221.

However, based on the data collected, the public consultation activities carried out and the comments received, Hydro-Québec added a third variant to its analysis. This variant runs successively along the rights-of-way of Route 202, Rang Saint-Georges , Rang Edgerton and Route 223.

Analysis revealed that this third 12.5-km variant is the one with the least impact. In fact, the width of the rights-of-way, the type of soil, and the limited vehicle traffic are elements that will facilitate line construction.

3

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227

225

223

221

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202

134

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15

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202

30

15

VERMONTNEW YORK

CANADA

Henryville, M

Rau

To Châteauguaysubstation

Delsonsubstation

Roussillonsubstation

Hertel substation

La Citière substation

La Prairie substation

L'Acadiesubstation Richelieu

substation

Saint-Lucsector

Saint-Jeansector

Napiervillesubstation

UNITED STATESLac Champlain(Lake Champlain)

(St. Lawren

ceRiv

er)

$

ChamplainRouses Point

Longueuil(TÉ)

Le Haut-Richelieu(MRC)

Les Jardins-de-Napierville (MRC)

Roussillon(MRC)

Rouville (MRC)Rouville (MRC)Richelieu (MRC)

Brome-Missisquoi (MRC)Brome-Missisquoi (MRC)

La Vallée-du-

Sain

t-Jea

n-su

r-Ric

helie

u, V

Henryville, M

Laco

lle, M

Noyan, M

La Prairie, V

Sain

t-Ber

nard

-de-

Laco

lle, P

Saint-Philippe, M

Mont-Saint-Grégoire, M

Sain

t-Cyp

rien-

de-N

apie

rville

, M

Sain

t-Ale

xand

re, M

Sain

t-Édo

uard

, M

Marieville, V

Saint-Blaise-sur-Richelieu, M

Sain

t-Jac

ques

-le

-Min

eur,

M

Sain

t-Pat

rice-

de-S

herri

ngto

n, M

Saint-Georges-de-Clarenceville, M

Sain

t-Val

entin

, M

Ric

helie

u, VCarignan, V

Hem

min

gfor

d, C

T

Candiac, V

Saint-Mathieu, M

Chambly, V

Sain

t-Mich

el, M

Brossard, V

Venise-en-Québec, M

Sain

te-A

nne-

de-S

abre

vois

, P

Saint-Paul-de-l'Île-aux-Noix, M

Carignan, V

Saint-Constant, V

Napierville, M

Delson, V

Montréal, V

Sain

t-Jea

n-

sur-R

icheli

eu, V

Posted'Iberville

Poste deSaint-Sébastien

Poste d 'Ivaco LimitéePoste de Marieville

Monnoir

Lacolle

Candiac

Ibervillesector

La Prairie

La Palestine

Dairy Valley

Saint-Alexandre

Venise-en-Québec

Plage-Desranleau

Domaine-Omer-Alix

Saint-Jean-sur-Richelieu

Clarenceville-EstGloria Village

Marieville

Delson

Noyan

Sherrington

Henryville

Sainte-Anne-de-Sabrevois

Chambly

Saint-Sébastien, M

Saint-Bernard-de-Lacolle

Saint-Valentin

Saint-Blaise-sur-Richelieu

Saint-Jacques-le-Mineur

Saint-Philippe

Saint-Mathieu

Saint-Édouard

Ma i

l lou x

Fleuve Saint-Lau

rent

RivièreSaint-Jacques

Ruisseau

Saint-André

Ruiss

eau

des

No y

ers

Rivi

ère

dela

Tortu

e

Rui

ssea

uLa

sal in

e

Rivièr

eL'

Aca

die

Gra

nde

déch

arge

Ruisseau Landry

Rivière L acol

le

Ruisseau Little

Riv

ière

duSu

d

Bla

ck

Riv

ière

Ric

helie

u

Ruisseau Bleury

Can

adia

n N

atio

nal

Canadian Pacific

Montréal, Maine andAtlantic Canada

Canadian National

Canadian Pacific

Document d'information destiné aux publics concernés par le projet. Pour tout autre usage, communiquer avec : Géomatique, Hydro-Québec Équipement et services partagés.

0 2 4 km

7331_bu_tem_028_traceret_130820a.mxd

73°10'73°20'

45°1

0'

45°0

'

73°20'

73°30'

45°2

0'45

°0'

45°1

0'

73°30'

Rui

ssea

u P

oiri

er

221

202

Cours d'eau Boyce-Gervais

Can

adia

n P

acifi

c

223

CANADA

U.S.A.

Lacolle, M

Saint-Bernard-de-Lacolle, P

Can

adia

n N

atio

nal

Ru

isse

au

Pa

ten

au

de

Riv

ière

L

aco

l le

Grande décharge O'Conn or

Ran

g S

aint

-Geo

rges

Rang E

dgerton

Montée Guay

Rang Edgerton

Montée Kempt

Montée d'Odelltown

0 750 m

A

Project components

A

Study areaSelected line route

Infrastructure

Highway

Provincial highway

Secondary or tertiary road

Substations and power transmission lines

120 kV

315 kV

735 kV

#

#

#

Boundaries

Regional county municipality (MRC)or equivalent territory (TÉ)Municipality

Line route selected

#

#

#

#

#

#

#

#

#

#

#

#

#

#

227

225

223

221

221

221

219

219

219

217

217

209

202

134

133

132

35

15

10

104

104

219

221

219

202

30

15

VERMONTNEW YORK

CANADA

Henryville, M

Rau

To Châteauguaysubstation

Delsonsubstation

Roussillonsubstation

Hertel substation

La Citière substation

La Prairie substation

L'Acadiesubstation Richelieu

substation

Saint-Lucsector

Saint-Jeansector

Napiervillesubstation

UNITED STATESLac Champlain(Lake Champlain)

(St. Lawren

ceRiv

er)

$

ChamplainRouses Point

Longueuil(TÉ)

Le Haut-Richelieu(MRC)

Les Jardins-de-Napierville (MRC)

Roussillon(MRC)

Rouville (MRC)Rouville (MRC)Richelieu (MRC)

Brome-Missisquoi (MRC)Brome-Missisquoi (MRC)

La Vallée-du-

Sain

t-Jea

n-su

r-Ric

helie

u, V

Henryville, M

Laco

lle, M

Noyan, M

La Prairie, VSa

int-B

erna

rd-d

e-La

colle

, P

Saint-Philippe, M

Mont-Saint-Grégoire, M

Sain

t-Cyp

rien-

de-N

apie

rville

, M

Sain

t-Ale

xand

re, M

Sain

t-Édo

uard

, M

Marieville, V

Saint-Blaise-sur-Richelieu, M

Sain

t-Jac

ques

-le

-Min

eur,

M

Sain

t-Pat

rice-

de-S

herri

ngto

n, M

Saint-Georges-de-Clarenceville, M

Sain

t-Val

entin

, M

Ric

helie

u, VCarignan, V

Hem

min

gfor

d, C

T

Candiac, V

Saint-Mathieu, M

Chambly, V

Sain

t-Mich

el, M

Brossard, V

Venise-en-Québec, M

Sain

te-A

nne-

de-S

abre

vois

, P

Saint-Paul-de-l'Île-aux-Noix, M

Carignan, V

Saint-Constant, V

Napierville, M

Delson, V

Montréal, V

Sain

t-Jea

n-

sur-R

icheli

eu, V

Posted'Iberville

Poste deSaint-Sébastien

Poste d 'Ivaco LimitéePoste de Marieville

Monnoir

Lacolle

Candiac

Ibervillesector

La Prairie

La Palestine

Dairy Valley

Saint-Alexandre

Venise-en-Québec

Plage-Desranleau

Domaine-Omer-Alix

Saint-Jean-sur-Richelieu

Clarenceville-EstGloria Village

Marieville

Delson

Noyan

Sherrington

Henryville

Sainte-Anne-de-Sabrevois

Chambly

Saint-Sébastien, M

Saint-Bernard-de-Lacolle

Saint-Valentin

Saint-Blaise-sur-Richelieu

Saint-Jacques-le-Mineur

Saint-Philippe

Saint-Mathieu

Saint-Édouard

Ma i

l lou x

Fleuve Saint-Lau

rent

RivièreSaint-Jacques

Ruisseau

Saint-André

Ruiss

eau

des

No y

ers

Rivi

ère

dela

Tortu

e

Rui

ssea

uLa

sal in

e

Rivièr

eL'

Aca

die

Gra

nde

déch

arge

Ruisseau Landry

Rivière L acol

le

Ruisseau Little

Riv

ière

duSu

d

Bla

ck

Riv

ière

Ric

helie

u

Ruisseau Bleury

Can

adia

n N

atio

nal

Canadian Pacific

Montréal, Maine andAtlantic Canada

Canadian National

Canadian Pacific

Document d'information destiné aux publics concernés par le projet. Pour tout autre usage, communiquer avec : Géomatique, Hydro-Québec Équipement et services partagés.

0 2 4 km

7331_bu_tem_028_traceret_130820a.mxd

73°10'73°20'

45°1

0'

45°0

'

73°20'

73°30'

45°2

0'45

°0'

45°1

0'

73°30'

Rui

ssea

u P

oiri

er

221

202

Cours d'eau Boyce-Gervais

Can

adia

n P

acifi

c

223

CANADA

U.S.A.

Lacolle, M

Saint-Bernard-de-Lacolle, P

Can

adia

n N

atio

nal

Ru

isse

au

Pa

ten

au

de

Riv

ière

L

aco

l le

Grande décharge O'Conn or

Ran

g S

aint

-Geo

rges

Rang E

dgerton

Montée Guay

Rang Edgerton

Montée Kempt

Montée d'Odelltown

0 750 m

A

Project components

A

Study areaSelected line route

Infrastructure

Highway

Provincial highway

Secondary or tertiary road

Substations and power transmission lines

120 kV

315 kV

735 kV

#

#

#

Boundaries

Regional county municipality (MRC)or equivalent territory (TÉ)Municipality

4

Crossing pointAn analysis of technical, environmental and economic criteria was also carried out for the crossing point at the Canada–U.S. border, where the line will connect to the CHPE’s system in the United States.

The crossing point will be located at the junction of Route 223, in Québec, and Route 11, in New York State.

The underground cable will cross the Canada–U.S. border without requiring any equipment or landmarks at ground level.

Technical characteristicsThe line will consist of two cables, each 115 mm (4.5 in.) in diameter, buried directly in a trench about 1 m wide at its base. It will also include a fibre optic cable that will enable the two converters, located at each end of the line, to communicate with one another.

The minimal depth of the trench will be 1.5 m, but the exact depth will depend on the obstacles to cross (e.g., viaducts, streams, ditches, drainage systems, etc.). The line will run beneath these obstacles whenever possible.

Special construction methods, such as directional drilling, may be used to bypass larger obstacles.

Bulletin – Info-solution (v. anglaise)Document d'information destiné aux publics concernés par le projet. Pour tout autre usage, communiquer avec : Géomatique, Hydro-Québec Équipement.

0.9 m0.9 m

Power cabblesPower cables

Slope depending on type of soilSlope depending on type of soil

rning tape WaWarning tape

efabricatedPrencrete slabcon

Prefabricatedconcrete slab

Fine saandFine sand

one bedStoStone bed

tical fibreOptOptical fibre

0.9 m

7331_bu_hq_015_coupetype_130815a.ai

Backfill in accordance with

environment

Backfill in accordance with

environment

Excavation type

Minimum 0.9 m

Minimum 1.5 m

Classic trench configuration

5

0.9 m

Minimum1.5 m

0.9 m

Power ccablesPower cables

Slope depending on type of soilSlope depending on type of soil

rning tape WaWarning tape

efabricatedPrencrete slabcon

Prefabricatedconcrete slab

Fine saandFine sand

one bedStoStone bed

tical fibreOptOptical fibre

0.9 m

7331_bu_hq_034_excavtype_agri_130815a.ai

Minimum0.9 m Drainage pipeDrainage pipe

Backfill in accordance with environment

Backfill in accordance with environment

0.1 m

Excavation type en milieu agricole

Bulletin – Info-solution (v. anglaise)Document d'information destiné aux publics concernés par le projet. Pour tout autre usage, communiquer avec : Géomatique, Hydro-Québec Équipement.

Trench configuration in farmland

Eastward view. In farmland, the line will be installed below drainage pipes.

Bulletin – Info-solutionDocument d'information destiné aux publics concernés par le projet. Pour tout autre usage, communiquer avec : Géomatique, Hydro-Québec Équipement.

Approximate location of the line in the right-of-way for the 735-kV Hertel–Châteauguay line

± 45 m

± 20 m

151.5 mRight-of-way

Location ofunderground line*

* The right-of-way for the underground line will be 4 m wide, within a 15-m wide space.

7331_bu_hq_035_pylone_agr_130820a.ai

Approximate location of the line in the right-of-way for the 735-kVHertel–Châteauguay line

Approximate location of the line in the right-of-way for the 735-kV Hertel–Châteauguay line

Hertel substation converter To install the conversion equipment, Hertel substation will have to be expanded on Hydro-Québec property.

The substation’s expansion zone will cover an area of approximately 26,000 m2. The fence on the west side of the substation will have to be moved.

Conversion equipment will be installed inside of an industrial building having a footprint of about 5,000 m2.

To operate the converter and connect it to the power system, new electrical equipment will have to be installed outside the building.

Once the work is completed, the existing embankment will be reshaped.

Expansion of Hertel substation

D

DD

DD

DD

DD

DD

DD

DD

Voie ferrée du CN

Réaménagementde la voie

de desserte

Hertel substation

!

Bâtimentd'entretien

!

Tour micro-ondes

! Bâtiment secondaire(relais à 735 kV)

!Bâtiment secondaire(relais à 315 kV)

!

Bâtiment decommande

!

Road tobe built

!

Planned fence

!

Existing fence

! Road to bedismantled

! Road to be dismantled

! Underground line

!

Planned expansion

Converter building

!

Control building andauxiliary services

!

Generator

!

Tours derefroidissement

Chemin Lafrenière

0 30 m

7331_bu_tem_030_implant_hertel_130820a.mxd

6

7

Visual simulation showing the new equipment at Hertel substation, from Chemin de Fontarabie.

Environmental studies and surveysUsing existing data and through field surveys, the company recently carried out detailed inventories of wetlands, waterways, wildlife and plant species, zones with archaeological potential and land use at Hertel substation and along the line route selected.

These results allowed Hydro-Québec to determine the final line route with maximum consideration for sensitive elements. The company will also implement mitigation measures to limit the impact of the project on the various environmental elements.

For example, Hydro-Québec will carry out some of the work during predetermined periods to avoid interfering with certain activities or to minimize the impact on the soil.

The company also carried out a characterization of all waterways to be crossed by the line to be able to choose the appropriate construction method.

For the portion of the line located in farmland, in the northern part of the line route, all relevant clauses from the Hydro-Québec–UPA Agreement on the Siting of Power Transmission Lines on Farms and Woodlands will be respected. For example, the topsoil will be set aside and restored at the end of the work.

Landscaping is planned at Hertel substation to better integrate the new building into its surroundings.

Current situation

Planned situation

Next stagesIn the next few months, Hydro-Québec will continue detailed engineering activities to determine the exact location of the line based on the route selected.

At the beginning of 2014, Hydro-Québec will file an environmental impact statement with the Ministère du Développement durable, de l’Environnement, de la Faune et des Parcs and the National Energy Board. This document will present the entire draft-design study.

After this step, the company will start the permitting process.

Schedule

DRAFT-DESIGN

Information on the route selected Summer – fall 2013

PROJECT

Permitting Spring 2014 – summer 2015

Construction Fall 2015 – fall 2017

Commissioning Fall 2017

Ce document est également publié en français.

This document is a translation of the original French.

Printed on paper made in Québec from 100% postconsumer recycled fibre. 2013E1066-A

www.hydroquebec.com

www.hydrofor thefuture.com

Project Website: www.hydroquebec.com/hertel-new-york

Project e-mail address: hqteinfohertelnewyork@hydro.qc.ca

For more information

Info-project line 1 877 653-1139

Hélène Perrault Advisor – Community relations Direction – Affaires régionales et collectivités 4825, avenue Pinard Saint-Hyacinthe (Québec) J2S 8S7

About the construction workHydro-Québec will determine the sequence and schedule of the construction work, taking into account the listed sensitive elements and the mitigation measures to be implemented.