Hydro-Québec

PUBLIC CONSULTATION Fall 2018

Appalaches–Maine Interconnection

In spring 2018, Hydro-Québec began studies for the construction of a new intertie 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 a 320-kilovolt (kV) direct current (DC) transmission line between Appalaches substation in Saint-Adrien-d’ near and a connection point at the –U.S. border in the municipality of Frontenac. Project plans also call for the installation of a converter at Appalaches substation. Consultation on the Proposed line route proposed line route Pairing with an existing line In recent months, Hydro-Québec met with representatives of Hydro-Québec plans to run the right-of-way of municipalities, local organizations and provincial departments the new line for about 75 km along an existing to get their initial feedback on the project. line corridor between Appalaches substation and Mégantic substation. This segment of the In the coming weeks, Hydro-Québec will embark on a broad line route crosses a total of nine municipalities consultation of all parties affected by the proposed line route. (see table on page 4) between Saint-Adrien- Community representatives, landowners, land users and the d’Irlande and Nantes. general public will have an opportunity to meet with the Pairing the lines has a number of advantages: project team and to share their points of view, comment on the proposed line route and discuss what comes next. 1) The integrity of the land is protected because a new line corridor will not have to be opened Hydro-Québec wants to hear what the community has to on mainly private land. say so that the project team can adjust the proposed line route and find the solution with the least impact in order 2) Less land will have to be cleared to build the to meet the broadest possible consensus. new line, reducing the project’s impact on the environment and on land use. Environmental and In this portion of the line route, the new line will technical studies have to be located at some distance from the existing line over about 5 km around the Thetford Mines Before coming up with a line route, Hydro-Québec conducted mining area for technical reasons. detailed technical and environmental surveys in the area. This process helped the team identify elements in the New right-of-way between Nantes and Frontenac study area that are sensitive to the construction of a In the study area, Hydro-Québec’s network of transmission line. high-voltage transmission lines ends at Mégantic substation. As there is no existing line that runs to the border, a new corridor had to be developed for the southern part of the study area. The main siting criteria that guided the development of this part of the line route are as follows: • Follow lot boundaries as much as possible • Avoid densely populated areas • Avoid sugar bushes, wetlands and known wildlife habitats • Preferably locate the line away from summits, where it would be more visible This 23-km stretch of the line route runs through the municipalities of Nantes, Sainte-Cécile-de-Whitton and Frontenac to the crossing point east of the ZEC Louise-Gosford.

2 71°30' 71°0' Sensitive elements Infrastructure#70°30'  Protected area  Wind farm   Biological refuge Substations and transmission lines  Scenic point # 120 kV Public land # # 230 kV Robert- Property of Domtar* #  Cliche 735 kV CENTRE-DU- 73 Les Boundaries (MRC) QUÉBEC (17) ProjectEtchemins components International border (MRC) Study area # PosteAdministrative de region Beauceville # Proposed line route   Regional county 269 # paired with existing line   municipality (MRC)  Beauceville Proposed line route  Municipality in new right-of-way Lac    William Grouping of sensitive \¬ Crossing point  # elements # #    * The boundaries and measurements in this document should not be used for 165 # #  Appalaches boundary demarcation.Saint-Georges 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' (MRC) Coleraine, M   46°0' # 173  269  # Disraeli, P #    Grand lac Sainte- Saint-François  ! Praxède, P 161 Parc national Disraeli, V de Frontenac Lac  Beauce- Nicolet  # Sartigan (MRC) Lac  Aylmer  Stratford, CT Le Granit (MRC) Saint-   Lac Romain, M Les Sources Elgin  (MRC) Zec  Lac Saint-Romain  Louise   

Stornoway, M Rivière Chaudière   #  #   112    161 Sainte-  Cécile-de-    ESTRIE (05)  Whitton, M  204 108 Nantes, M # Le Haut-Saint- Mégantic 214 ! François (MRC) substation Lac-  Mégantic, V Frontenac, M  Lac Lac aux \¬ Mégantic Araignées 45°30'

# 45°30' # Ma i ne    Zec Louise- Gosford

212

Québec

United States

New Hampshire

0 5,75. 11,5. km

MTM, zone 7, NAD83 (SCRS) 71°30' 71°0' 7578_bu_get_020_infoconsult_181106a.mxd 70°30'

Document for information purposes only. For any other use, please contact Géomatique at Hydro-Québec Innovation, équipement and services partagés. 3 Municipalities crossed by the proposed line route

MRC Municipality Length (km)

Saint-Adrien- d’Irlande 3.6 (M)

Thetford Mines 11.3 (V) Appalaches Saint-Joseph- de-Coleraine 14.7 (M)

Disraeli 6.8 (P)

Sainte-Praxède 3.4 (P)

Subtotal 39.8

Stratford 9.9 (CT)

Stornoway 14.8 (M)

Saint-Romain 0.8 Granit (M) Nantes 16.1 (M)

Sainte-Cécile- de-Whitton 5.5 (M)

Frontenac 16.3 (M)

Subtotal 63.4

Total 103.2

Length of line running along existing line corridor ...... 75.2 km Length of line in protected agricultural land ...... 63.6 km

4 Towers Planned 320-kV Existing 120-kV DC line AC line For this project, Hydro-Québec plans to design a new tower which will reduce required land clearing.

Planned 320-kV Existing 120-kV DC line AC line 33 m to 51 31.1 m to 44.6 Height varying from: Height varying from: 7578_bu_get_025_coupestypes_tr_4_5_181109a.ai

33 m to 51 About 29 m 31.1 m to 44.6 AboutHeight varying from: 25 m 45.7 m Height varying from: Planned right-of-way Existing right-of-way

7578_bu_get_025_coupestypes_tr_4_5_181109a.ai Clearance of about 25 m is required where the About 29 m Ligne jumelée avec une ligne existante new line is paired with About 25 m entre Stornoway et45.7 Nantes m the existing line. Planned right-of-way Existing right-of-way

Line paired withLigne existing jumelée line avec between une ligne Stornoway existante and Nantes entre Stornoway et Nantes

Planned 320-kV DC line

Planned 320-kV DC line 33 m to 51 Height varying from:

7578_bu_get_025_coupestypes_tr_4_5_181109a.ai Clearance of about 43 m

33 m to 51 is required to create About 21.5 m About 21.5 m Height varying from: the new corridor. About 43 m Planned right-of-way 7578_bu_get_025_coupestypes_tr_4_5_181109a.ai

About 21.5 m About 21.5 m Line in new right-of-wayLigne dans betweenAbout un 43 nouveau m Nantes couloir and crossing point entre NantesPlanned et right-of-way le point de traversée

Ligne dans un nouveau couloir Ligne d’interconnexionentre Nantes et le point des de Appalaches–Maine traversée

Ligne d’interconnexion des Appalaches–Maine Tangible support for community development Project schedule Hydro-Québec sees its projects as an opportunity to Draft-design studies contribute to the vitality of host communities. As a result, Spring 2018 – summer 2019 the public utility grants eligible organizations funding, Permitting through its Integrated Enhancement Program, for projects Summer 2019 – winter 2021 that improve life in the community. Construction These initiatives can involve municipal, community or Spring 2021 – fall 2022 recreational infrastructure, the environment, tourism or regional development. Commissioning Fall 2022

For more information hydro./appalaches-maine Appalaches MRC COLETTE LETTRE-RACINE Advisor – Community Relations Direction – Affaires régionales et collectivités [email protected] INFO-PROJECT LINE: 1 8 5 5 8 4 5-7 4 1 7 Du Granit MRC NADINE JEANNOTTE Advisor – Community Relations Direction – Affaires régionales et collectivités [email protected] INFO-PROJECT LINE: 1 8 7 7 6 5 3-1 1 3 9 Abenaki Communities PATRIC FRIGON Advisor – Indigenous Relations Direction – Relations avec les autochtones 5 1 4 2 8 9-2 2 1 1, extension 8 7 9 0 [email protected]

Ce document est également publié en français. Appalaches substation in Saint-Adrien-d’Irlande Original text written in French. 2018E3182-A

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