NP-NLH-121 2017 General Rate Application Page 1 of 1

1 Q. Volume II (1st Revision), Exhibit 1: Provincial Electrical System 2 Please update Schedules I, II, and IV to show the electrical system configurations, 3 and applicable plant assignments, that will be in place for the 2019 test year. The 4 update should include, for example, the Muskrat Falls to Happy Valley 5 Interconnection project proposed in Hydro’s 2018 Capital Budget Application. 6 7 8 A. Please refer to NP-NLH-121, Attachment 1 and Attachment 2, which reflect the 9 Muskrat Falls to Happy Valley Interconnection project proposed in Hydro’s 2018 10 Capital Budget Application. These schedules and the original version of Schedule II 11 indicate the electrical system configurations and applicable plant assignments that 12 will be in place for the 2019 Test Year. NP-NLH-121, Attachment 1 L E G E N D Page 1 of 1, NLH 2017 GRA 735 kV FREQ. CONVERTOR 315 kV 230 kV NF. POWER 138 kV CORNER BROOK PULP AND PAPER 69 kV ALGONQUIN POWER LOW VOLTAGE 138kV CUSTOMER OWNED MUSHUAU 1st NATION 69kV CUSTOMER OWNED WIND GENERATION Atlantic Ocean HYDRO PLANT OPERATED BY NALCOR

THERMAL PLANT GAS TURBINE Quebec NAIN TERMINAL STATION DIESEL PLANT TERMINAL STATION & NATUASHISH CONVERTER STATION HOPEDALE

D C L E G E N D POSTVILLE MAKKOVIK TO MUSKRAT FALLS +_ 350 / +_ 200kV HVdc MENIHEK Labrador RIGOLET SUBMARINE CABLE L3501 Labrador CHURCHILL NORTH L3502 TWIN FALLS CARTWRIGHT BLACK ELECTRODE LINE FALLS L1301 GOOSE WEST TICKLE LABRADOR BAY RIVER E PARADISE ELECTRODE STATION CITY L2304 TS1 TS3 MUD RIVER LAKE NORMAN BAY L2303 L3101 L1302 CHARLOTTETOWN WABUSH L3102 TS2 MUSKRAT WILLIAMS HR. FALLS L3501 PORT HS RED BAY L3502 ST. LEWIS MARY'S L7053 HR. L’ANSE AUX L'ANSE-AU-LOUP COOK’S HR. MEADOWS L' ANSE-AU-LOUP L’ANSE L7052 AU DIABLE L7051 L' ANSE-AU-CLAIR E EDDIE’S ST. LUNAIRE Quebec CBL1,2&3 COVE E. FORTEAU POINT TL261 ST. ANTHONY SHOAL COVE TL256 BEAR GOOSE COVE

COVE TL257B ST. ANTHONY MAIN AIRPORT PLUM PT. TL244 BROOK CROQUE

NEW FEROLLE TL257A CONCHE RODDICKTON RODDICKTON EDDIE’S TL241 MINI-HYDRO COVE W. L3501 L3502 HAWKES BAY RIVER OF PONDS

BELLBURNS TL221 PETER’S DANIELS HR. BARREN TL262 CAT PORTLAND CREEK ARM FLEUR DE LYS TL227 JACKSON'S PACQUET PARSONS POND TL259 SEAL Gulf of St. Lawrence ARM CONEY TL260 LA SCIE RATTLE BROOK ARM COVE TL253 VENAM'S BIGHT CHANGE BOTTOM ISLANDS WATERS SNOOK'S ARM TL227 JACKSON'S WEST- SALLY'S COVE LITTLE BAY ARM TAP PORT TWILLINGATE FOGO ISLAND NP ISLANDS BERRY HILL NORRIS PT. TL252 HAMPDEN ROCKY HR. TAYLOR’S SPRINGDALE WOODY PT. TL239 POND TRITON FAREWELL HEAD HAMPDEN GLENBURNIE TL229 TL223 ROBERT'S ARM TL254 TAP BOYD'S TROUT RIVER TL226 INDIAN SOUTH Atlantic WILTONDALE TL247 RIVER COVE TL251 TL224 BROOK LEWISPORTE Ocean TL225 BISHOP'S GANDER BAY WESLEYVILLE DEER LAKE FALLS BOTWOOD CORNER TL222 BROOK HOWLEY COBBS NP GRAND FRENCHMAN’S TL245 TL243 POND NP COVE NP FALLS HINDS LAKE NP BUCHANS TL210 GANDER ST. BRENDAN'S TL248 TL205 GLEN- CoGENERATION TL228 TL235 MASSEY STONY WOOD DRIVE TL232 SANDY TL211 BROOK GAMBO BROOK R-FIELD BONAVISTA STEPHENVILLE TL264 DUCK POND TAP TL209 BOTTOM

TL231 NP BROOK TL204 TL233 TL280 L3501 E L3502 INDIAN STAR NP HEAD LAKE N.S. DAM & SPILLWAY NP TL263 MILTON NP LOOKOUT TL269 BROOK TL250 UPPER CLARENVILLE SALMON OLD PERLICAN TL214 GRANITE TL234 NP NEW CHELSEA TL270 CANAL BAY D'ESPOIR L2001 TL206 DOYLES L2002 TL202 TL220 SUNNYSIDE GRANDY BK. TL267 CARBONEAR LONG ST. ALBAN’S ENGLISH HR. TL207 NP TL219 TL203 LAKE WEST TL212 TL218 TL215 LAPOILE CONNE RIVER PARADISE TL237 OXEN POND GRAND NP RIVER TL268 BURGEO McCALLUM BARACHOIX COME WESTERN TL265 TL236 BAY BY AVALON RENCONTRE CHANCE HOLY- HARDWOODS CAPE PORT AUX GREY FRANCOIS GAULTOIS EAST ROOD E RAY BASQUES NP RIVER PASS IS. TL219 MONKSTOWN TL201 TL266 RAMEA BELLEORAM DOWDEN’S SEAL COVE VOISEY TL208 TL242 TL217 POINT HERMITAGE PETIT BAY HR. BRETON SOUTH SOLDIER’S FORTE EAST NICKEL NP GARNISH TL212 BIGHT NP POND LINTON LAKE CLARKE'S L2001 MARYSTOWN L2002 GRAND POND CAPE BANK SALT POND BROYLE NP

NP LAWN FALL POND FERMEUSE ST. LAWRENCE TREPASSEY

POINT ACONI

WOODBINE

NOVA E BIG LORRAINE Provincial Generation and Transmission Grid SCOTIA

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KILOMETRES Revised: September 29, 2017 NP-NLH-121, Attachment 2 Page 1 of 1, NLH 2017 GRA

PLANT ASSIGNMENTS

CHURCHILL FALLS L1301/TL240 COMMON 15-230kV HYDRO RURAL 5428MW MFATS1 MFATS3 PUMPING TAP IOC 230-138kV STATION STATION OWNED BY OTHER L2304 LEGEND L2303 - GENERATOR 230-735kV T76 T75 T74 T73 T72 T71 - TRANSFORMER - TRANSFORMER 2 WINDING SC 1 & SC 2 - TRANSFORMER 3 WINDING -45/+60 MVAR - TRANSFORMER (AUTO) SC 3 - TRANSFORMER HVDC CONVERTER -20/+60 MVAR - CIRCUIT BREAKER

- DISCONNECT SWITCH 27.55 MVAR - RECLOSER

- CAPACITOR BANK WABUSH - SHUNT REACTOR 230-46kV - CABLE - GROUND SWITCH L7051 L7053 165 L7052 165 165 MVAR MVAR MVAR 735kV 315kV - LINE COMMUTATED T1 T2 T3 T4 T5 T6 T7 T8 HVDC CONVERTER LABRADOR CHURCHILL FALLS L1302 QUEBEC TERMINAL STATION 2 BORDER 735-315kV

L3101

L3102 HAPPY VALLEY L1302 GOOSE BAY SS1 SS2 138-25kV IOC 1 IOC 2 IOC 3 IOC 4 IOC 6 IOC 7 IOC 5B IOC 5A 25 MW 11.4 MVAR 25.2 MVAR 25.2 MVAR L32 L16 3 X 72 MVAR FILTERS WABUSH MINES 1 WABUSH MINES 2 T1 T2 T4 L33

L36

L17 L36 T3

L40 L40 L1 L7 L8 L10 L15 TO SOLDIERS POND TO SOLDIERS POND +/- 350kV 900MW 25-4.16kV

25-4.16kV WABUSH TOWN 46-12.5kV QUARTZITE COOPER 46-25kV HILL L11 46-4.16kV GREAT NORTH DATA 2 X 72 MVAR FILTERS TO VANIER 46-25kV FERMONT MUSKRAT FALLS 315kV GENERATING STATION NORTH SIDE WALSH LANDFILL LABRADOR DIESEL PLANT RIVER 46-14.4kV MUSKRAT FALLS TERMINAL STATION 2 15-315kV CITY 5.0 MW 46-14.4kV 315-138-25kV (UNDER CONSTRUCTION) 824MW

Labrador Interconnected System 2019 Plant Assignment