Appalaches-Maine Interconnection Line - Hydro-Québec
←
→
Page content transcription
If your browser does not render page correctly, please read the page content below
Hydro-Québec
PROJECT OPTIMIZATION
AND INFORMATION ON
SOLUTION SELECTED
Summer 2019
Appalaches–Maine
Interconnection Line
In spring 2018, Hydro-Québec began studies for the construction of a new
interconnection between the Hydro-Québec and Maine power systems, the
goal being to increase the energy transmission capacity between Québec
and New England. The project consists of building a new 320-kilovolt (kV)
direct current (DC) transmission line between Appalaches substation in
Saint-Adrien-d’Irlande near Thetford Mines and a connection point at the
Canada–U.S. border in the municipality of Frontenac.
Project plans also call for the installation of a converter at Appalaches
substation, which will convert alternating current to direct current to
supply the new interconnection.
Height varying from:
Height varying from:
33 m to 51 m
31.1 m to 44.6 m
Consultation on the Technical characteristics
proposed line route of the planned DC line
Over the past months, Hydro-Québec has Hydro-Québec has developed About 29amnew family of towers for
held numerous meetings with community this project: About
the conductors
25 m are located45.7onm one side only,
representatives and many of the landowners thus reducing the width of the right-of-way
Planned right-of-way to be cleared.
Existing right-of-way
affected by the proposed line route to take • Each tower will be made up of a positive pole (+320 kV)
their concerns into account and make and a negativeLigne jumelée avec une ligne existante
poleentre
(−320 kV).
Stornoway et Nantes
adjustments to the project, wherever possible. • Each pole will be equipped with two conductors.
• The line will be supported by approximately 320 towers.
Project optimization • The average distance between towers will be 325 m.
As a result of these exchanges, the following The right-of-way to be cleared will be 43 m wide where
modifications have been made to the project the line runs alone and 10 to 25 m wide where it is paired
so far: with an existing line.
• A family of tubular towers has been developed
to allow for the integration of a 3.5-km segment
of the new line near an urbanized area of the
Planned 320-kV
town of Thetford Mines. DC line
• The route of the approximately 24-km segment
of the new line in the Du Granit MRC has been
relocated to protect woodlands or follow lot
boundaries.
• To the extent possible, the future tower sites
Height varying from:
33 m to 51 m
have been determined in accordance with
7578_bu_get_025_coupestypes_tr_4_5_181109a.ai
landowners’ requests, to avoid valued elements
on their properties.
• The line route has been adjusted to ensure
the safe coexistence of the power line and
the region’s extensive logging operations.
• The commitment has been made to plant
shrub species that are compatible with the About 21.5 m About 21.5 m
future power line to limit the impact of land About 43 m
clearing operations on certain properties. Planned right-of-way
• The project schedule has been adjusted to
take the sugar bush season into account. Ligne dans un nouveau couloir
entre
PowerNantes
line inetalenew
point de traversée
corridor
between Nantes and the crossing point
Description of
line route selected
The line route selected is 103.4 km long and Work
Ligne at Appalaches substation
d’interconnexion des Appalaches–Maine
crosses both the Appalaches MRC (40 km)
The work at Appalaches substation will involve installing
and Du Granit MRC (63.4 km), affecting eleven
a new direct current converter and connecting it to the
municipalities in all (see map).
existing power grid.
The future line will be paired with one or more
The converter will comprise various types of electrical
existing lines along 73% of its route. Starting
equipment and two new buildings. The equipment will
at Nantes, the planned line will run alone along
be installed within the substation’s current boundaries.
a new corridor for approximately 24 km to the
Canada–U.S. border. The crossing point, where The converter will be connected to the 735-kV section
the line will connect to the power system on of the substation. Installation of the new equipment
the U.S. side, is located on private land northeast needed for the connection will require that the substation
of Zec Louise Gosford in the municipality of be expanded on the east side within the boundaries of
Frontenac. Hydro-Québec’s property. The expansion is estimated
to cover an area of 227 m by 145 m.
271°30' 71°0' Sensitive elements #70°30'
Infrastructures
Protected area Wind farm
Biological refuge
Substations and transmission lines
Scenic point
# 120 kV
Public land
# # 230 kV
PropertyRobert-
of Domtar*
Cliche # 735 kV
CENTRE-DU- 73 Les
Boundaries (MRC)
QUÉBEC (17) Etchemins
Project components
International border (MRC)
Study area
# Poste de
Administrative region
Beauceville # Line route selected
Regional county paired with existing line
269 # (MRC)
municipality
Beauceville Line route selected
Municipality
Lac in new right-of-way
William Grouping of sensitive
# #
¬
\ Crossing point
elements
#
165 Appalaches #
* The boundaries and measurements in this document should not be used for
Saint-Georges
boundary demarcation. No land analysis has been conducted by a land surveyor.
# L'Érable substation
(MRC)
!
# 271
Saint-Adrien-d'Irlande, M Thetford #
Mines, V CHAUDIÈRES-
APPALACHES (12)
108
Les Appalaches Saint-Joseph-de-
46°0'
46°0'
(MRC) Coleraine, M
173
#
269
#
Disraeli, P #
Grand lac
Sainte- Saint-François
161 Praxède, P
Parc national
!
Disraeli, V de Frontenac
Lac Beauce-
Nicolet Sartigan (MRC)
Lac
#
Aylmer Le Granit (MRC)
Stratford, CT
Saint-
Romain, M
Les Sources Lac
Elgin e
(MRC) Zec de èr
Saint-Romain di
Lac ha
u
C
Louise e
èr
Stornoway, M Ri
vi
# #
112
Sainte-
161
Cécile-de-
ESTRIE (05)
Whitton, M
204
108
Nantes, M
Le Haut-Saint- #
François (MRC)
214
Mégantic
!
substation
Lac-
Mégantic, V Frontenac, M
Lac aux
¬
\
45°30'
Lac
45°30'
Mégantic Araignées
#
#
Maine
Zec
Louise-
Gosford
212
tes
ec
d S ta
Québ
Unite
Ne w
Ha m ps hire
0 5,75
. 11,5
. km
MTM, Zone 7, NAD83 (SCRS)
71°30' 71°0' 7578_bu_get_066_infodecision_190529a.mxd 70°30'
Document for information purposes only. For any other use, please contact Géomatique at Hydro-Québec Innovation, équipement et services partagés.
3Upcoming environmental
and technical surveys Schedule
Over the next few months, Hydro-Québec will Draft-design studies
conduct environmental and technical field surveys Spring 2018–summer 2019
to prepare for land-clearing work and construction Permitting
of the future power line: Summer 2019–fall 2020
• Geotechnical surveys related to siting of the future
towers to determine the type of foundation to Construction
Winter 2021–fall 2022
lay for each support structure.
• Forest surveys on all properties affected to Commissioning
determine the type and volume of timber to be Fall 2022
felled, the traffic strategy to be implemented and
the mitigation measures to be applied during
work near sensitive elements such as wetlands
or watercourses. Permitting
• Characterization of the watercourses over which Hydro-Québec is currently conducting an environmental impact
temporary bridges may be installed. assessment for the project and will be filing various applications
• Detailed inventories of wetlands affected by the for government approvals in the coming months.
work areas for certain towers.
The interconnection line will be subject to the provincial
• Inventories of areas with archaeological potential
environmental impact assessment and review procedure, which
identified along the line route selected.
includes a review by the Bureau d’audiences publiques sur
All of the above preparatory work will be carried l’environnement [office for public hearings on the environment]
out with the consent of the landowners affected, as well as an analysis by the National Energy Board, given that
between fall 2019 and summer 2020. the power line will cross an international border.
For more information
hydro.quebec/appalaches-maine
Appalaches MRC
COLETTE LETTRE-RACINE
Advisor – Community Relations
Direction – Affaires régionales et collectivités
lettreracine.colette@hydro.qc.ca
INFO-PROJECT line : 1 855 845-7417
Du Granit MRC
NADINE JEANNOTTE
Advisor – Community Relations
Direction – Affaires régionales et collectivités
jeannotte.nadine@hydro.qc.ca
INFO-PROJECT line : 1 877 653-1139
Indigenous Communities
PATRIC FRIGON
Advisor – Indigenous Relations
Direction – Relations avec les autochtones
frigon.patric@hydro.qc.ca
514 289-2211, extension 8790
Original text written in French. Appalaches substation in Saint-Adrien-D’Irlande
Ce document est également publié en français.
2019E1443-A
100 %You can also read
