PEACE REGIONELECTRICITY SUPPLYCHARLES YOUNGPRES PROJECT MANAGER
LESLEY WOODPRES STAKEHOLDER ENGAGEMENT
July 2015
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CONTENTS
INTRODUCTION
ALTERNATIVES
SCHEDULE
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PROJECT PURPOSE
PEACE REGION ELECTRICAL SUPPLY (PRES) PROJECT: INTRODUCTION
To reliably meet the large growth in electricity demand in theDawson/Groundbirch area
• Growth is mainly due to the boom in unconventional gas production, andcompanies wishing to power their facilities from the BC Hydro grid
• This has resulted in some of the most dramatic single-industry regionalload growth BC Hydro has seen in the last 50 years
• Dawson Creek/Chetwynd Area Transmission (DCAT) project (underconstruction) will double capacity in the area (provides new largetransmission lines to resolve “downstream” constraint)
• The planned PRES transmission lines will bring more electricity to theDCAT line (resolves “upstream” constraint)
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PRES PROJECT STATUS
PEACE REGION ELECTRICAL SUPPLY (PRES) PROJECT: INTRODUCTION
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BC Hydro is still evaluating PRES Project alternatives
• There are now five main alternatives, each with route and/or designconfiguration options
• We are continuing desktop technical, environmental, archaeological andcost estimating studies on alternatives we’ve presented to you previously
• Through consultation with First Nations and further feasibility research,BC Hydro recently identified two new alternatives, which are now beingstudied
• We expect to identify a leading alternative in Fall 2015
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DESIGN DEPENDS ON LOADPEACE REGION ELECTRICAL SUPPLY (PRES) PROJECT: ALTERNATIVES
OR
One newwood-pole
line
Two newwood-pole
lines
One newd/c steel
lattice line
Existingline
remains
Existingline
rebuilt
To provide up to 650 MW to the area requires one newtransmission line:
• Install one new single circuit 230 kV transmission lineon wood-pole H frame
• Rebuild existing line from GMS to SLS via SNK withheavier conductor on new, taller structures
To provide up to 850 MW to the area requires two newtransmission lines:
• Install new double circuit 230 kV on steel lattice ortwo new single circuit 230 kV lines on wood-pole Hframes; no change to existing line
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ALTERNATIVE 1230 KV TRANSMISSION LINE(S) FROM GMS TO SLS VIA SNK
PEACE REGION ELECTRICAL SUPPLY (PRES) PROJECT: ALTERNATIVES
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Alternative 1-1
• One 230 kV wood pole circuit, 105 km,parallel existing circuit as much aspossible
• Rebuild existing line; some substationupgrades
Alternative 1-2
• Double circuit 230 kV line or two woodpole 230 kV lines; same length, route
• No change to existing line; somesubstation upgrades
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ALTERNATIVE 2A230 KV TRANSMISSION LINE(S) FROM GMS TO SLS, VIA DKT
PEACE REGION ELECTRICAL SUPPLY (PRES) PROJECT: ALTERNATIVES
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Alternative 2a-1
• One 230 kV wood pole circuit, 85 km;15 km would not parallel existing circuit;rest would parallel as much as possible
• Rebuild existing line; some substationupgrades
Alternative 2a-2
• Double circuit 230 kV line or two woodpole 230 kV lines; same length, route
• No change to existing line; somesubstation upgrades
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Alternative 3a-1 -- orange• New 500/230 kV DKT500 Substation,
connected to existing 500 kV line southof GMS
• One 230 kV line, approx. 84 km long;most would parallel existing lines
• Rebuild existing line; some substationupgrades
Alternative 3a-2 – orange• New DKT500 Substation, with double
circuit 230 kV line or two wood pole 230kV lines; same length, route
PEACE REGION ELECTRICAL SUPPLY (PRES): ALTERNATIVES
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ALTERNATIVE 3A: 230 KV LINE(S) FROM DKT500 TO SLS, VIA SNK
• No change to existing line; some substation upgrades
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Alternative 3b-2 -- blue
• New DKT500 Substation
• Double circuit lattice or two newwood pole single circuit 230 kVtransmission lines; approx. 64 kmlong, paralleling existing line wherepossible
• No changes to existing line; SLSupgrades required
PEACE REGION ELECTRICAL SUPPLY (PRES): ALTERNATIVES
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ALTERNATIVE 3B:230 KV TRANSMISSION LINES FROM DKT500 TO SLS, NORTH OF SNK
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ALTERNATIVE 4230 KV TRANSMISSION LINES FROM PIV TO SLS
PEACE REGION ELECTRICAL SUPPLY (PRES) PROJECT: ALTERNATIVES
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Alternative 4a-2 -- green
• New 500/230 kV Pine Valley (PIV)Substation, connected to existing 500 kVtransmission line
• Double circuit 230 kV or two new wood-pole single circuit 230 kV transmissionlines, approx. 84 km (PIV to SLS viaSNK), paralleling existing where possible
• Upgrade SLS; no change to existing line
Alternative 4b-2 -- yellow
• Similar, except route north of SNK; shorter (approx. 48 km long); all newright-of-way needed
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ALTERNATIVE 5230 KV TRANSMISSION LINES FROM FUTURE SITE C SUBSTATION TO SGB
PEACE REGION ELECTRICAL SUPPLY (PRES) PROJECT: ALTERNATIVES
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Alternative 5a-2 -- red
• Double circuit lattice or two new woodpole single circuit 230 kV transmissionlines; approx. 55 km long
• Upgrades to SGB
Alternative 5b-2 -- brown
• Similar, but parallels an existing line for2.5 km and crosses Pine River at adifferent location
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EVALUATING ALTERNATIVESTo identify the leading alternative, BC Hydro will consider the following:
• Technical issues (capacity, reliability, constructability)
• Potential environmental impacts
• Potential archaeological impacts
• First Nations input
• Stakeholder input
• Cost
• Schedule
• Safety
PEACE REGION ELECTRICAL SUPPLY (PRES): ALTERNATIVES
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TENTATIVE SCHEDULE (ALL DATES SUBJECT TO CHANGE)
PEACE REGION ELECTRICAL SUPPLY (PRES) PROJECT: SCHEDULE
EvaluateAlternatives
Identifyleadingalternative
(late Fall 2015)
Project definition(Additional studies)
Construction
In Service
Fall 2013 Spring 2016 2018 2021-2023
We arehere
QUESTIONS & DISCUSSION
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FOR MORE INFORMATIONLESLEY WOOD604 623 [email protected]
OR VISIT: www.bchydro.com/pres
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