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polarconsult alaska, inc. engineers planners energy consultants
HVDC Transmission for Rural Alaska
STAKEHOLDERS’ ADVISORY GROUP SECOND MEETING
January 14, 2010ANCHORAGE, ALASKA
Joel D. Groves, P.E.
polarconsult alaska, inc.ENGINEERS - PLANNERS - ENERGY CONSULTANTS
1503 W. 33rd Avenue, Suite 310Anchorage, Alaska(907) [email protected]
polarconsult alaska, inc. engineers planners energy consultants
MEETING GOALS
1. PROJECT STATUS UPDATE
2. DISCUSS PHASE III GOALS, SITES
3. FORM SAG WORK GROUPS
4. PROJECT Q & A
5. NEXT MEETING
polarconsult alaska, inc. engineers planners energy consultants
Project Status – Highlights
Manitoba International, LTD under contract as specialist HVDC consultant
Operates Nelson River Bipoles, 2 HVDC circuits (3,400 MW) in arctic climate.
Operates HVDC Research Centre, Expertise in HVDC operations, hardware, R&D and testing capabilities
Tasked with technical review, MTDC network assessment, special hardware, cold climate experience, communications, fault detection, and regulatory assistance.
polarconsult alaska, inc. engineers planners energy consultants
Project Status – Converter
polarconsult alaska, inc. engineers planners energy consultants
1 MW Enclosure (20’x13’)
polarconsult alaska, inc. engineers planners energy consultants
Low Voltage CabinetWeight & Dims:63”H x 42”D x 74”L2,300 lbs
Emergency Transport:CASA-212-200
CoolingForced Air
polarconsult alaska, inc. engineers planners energy consultants
High Voltage AssemblyWeight & Dims62”H x 36”D x 127”L4,900 lbs (wet)2,100 lbs (dry)
Emergency TransportCASA 212-200
CoolingCoolant is Luminol TR/TRiPour Point -60CFlash Point 170CNatural Oil Convection
polarconsult alaska, inc. engineers planners energy consultants
Project Status – Intertie Control
Phase III Demo Controls
Phase III demo will be point-to-point
HVDC power regulation by DC line voltage
Communications desirable for control and fault detection
Communications necessary for load shed
HVDC Vision for Alaska = MTDC Networks
More work is needed to define control schema
Manitoba tasked with developing a roadmap
polarconsult alaska, inc. engineers planners energy consultants
Project Status – Overhead System
Validated conceptual design
Foundation design in progress
Waiting for pricing and product development options from vendors
polarconsult alaska, inc. engineers planners energy consultants
Project Status – OH ExampleGVEA Northern Intertie
Commissioned 1968
Guyed lattice, 138 kV
1,000’ – 1,200’ spans
Permafrost soils
Some frost jacking issues
polarconsult alaska, inc. engineers planners energy consultants
Project Status – Submarine Cable Work Plan
Conceptual materials and design of cable done
Soliciting budgetary pricing from manufacturers to design and manufacture cable in commercial quantities
No testing needed in Phase II
polarconsult alaska, inc. engineers planners energy consultants
Project Status – Buried Cable Work Plan
Unarmored submarine cable is suitable
Existing 1/0 35kV AC cable is suitable
Frost cracking is key issue in arctic soils No proven solution from utility/oil industry
experience. GCI doing some interesting work with telecom cables – same problem
Evaluating test options and developing test plan
polarconsult alaska, inc. engineers planners energy consultants
Project Status – Construction and O&M Methods
Identified existing rigs/equip that can be adapted to construct overhead system
Working on O&M methods
polarconsult alaska, inc. engineers planners energy consultants
Project Status – Economics
Collecting cost data
Economic analysis will start in Q2 2011
polarconsult alaska, inc. engineers planners energy consultants
Phase III Demonstration Project -PROJECT OBJECTIVES
Prove up HVDC Hardware
Prove up innovative technologies
Overhead, overland cable, etc.
Prove functionality of SWER
polarconsult alaska, inc. engineers planners energy consultants
Phase III Demonstration Project-PROJECT CRITERIA
Transmission only
Lengths >10 miles
Load < 1 MW
Benefit
Readiness
Constructability
polarconsult alaska, inc. engineers planners energy consultants
Phase III Demonstration ProjectCANDIDATE PROJECTS
polarconsult alaska, inc. engineers planners energy consultants
FROMDISTRIBUTING ALASKA’S POWERNANA PACIFIC/WH PACIFIC/NANA COLTDECEMBER 2008
polarconsult alaska, inc. engineers planners energy consultants
polarconsult alaska, inc. engineers planners energy consultants
polarconsult alaska, inc. engineers planners energy consultants
polarconsult alaska, inc. engineers planners energy consultants
polarconsult alaska, inc. engineers planners energy consultants
polarconsult alaska, inc. engineers planners energy consultants
polarconsult alaska, inc. engineers planners energy consultants
polarconsult alaska, inc. engineers planners energy consultants
polarconsult alaska, inc. engineers planners energy consultants
polarconsult alaska, inc. engineers planners energy consultants
polarconsult alaska, inc. engineers planners energy consultants
polarconsult alaska, inc. engineers planners energy consultants
QUESTIONS AND COMMENTS
polarconsult alaska, inc. engineers planners energy consultants
