HVDC Transmission for Rural Alaska STAKEHOLDERS ADVISORY GROUP - - PowerPoint PPT Presentation

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HVDC Transmission for Rural Alaska STAKEHOLDERS ADVISORY GROUP SECOND MEETING January 14, 2010 A NCHORAGE , A LASKA Joel D. Groves , P.E. polarconsult alaska, inc. ENGINEERS - PLANNERS - ENERGY CONSULTANTS 1503 W. 33rd Avenue, Suite 310

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polarconsult alaska, inc. engineers planners energy consultants

HVDC Transmission for Rural Alaska

STAKEHOLDERS’ ADVISORY GROUP SECOND MEETING

January 14, 2010 ANCHORAGE, ALASKA Joel D. Groves, P.E.

polarconsult alaska, inc.

ENGINEERS - PLANNERS - ENERGY CONSULTANTS

1503 W. 33rd Avenue, Suite 310 Anchorage, Alaska (907) 258-2420 www.polarconsult.net joel@polarconsult.net

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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
perations, hardware, R&D and testing capabilities
Tasked with technical review, MTDC network

assessment, special hardware, cold climate experience, communications, fault detection, and regulatory assistance.

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polarconsult alaska, inc. engineers planners energy consultants

Project Status – Converter

polarconsult alaska, inc. engineers planners energy consultants

1 MW Enclosure (20’x13’)

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polarconsult alaska, inc. engineers planners energy consultants

Low Voltage Cabinet

Weight & Dims: 63”H x 42”D x 74”L 2,300 lbs Emergency Transport: CASA-212-200 Cooling Forced Air

polarconsult alaska, inc. engineers planners energy consultants

High Voltage Assembly

Weight & Dims 62”H x 36”D x 127”L 4,900 lbs (wet) 2,100 lbs (dry) Emergency Transport CASA 212-200 Cooling Coolant is Luminol TR/TRi Pour Point -60C Flash Point 170C Natural Oil Convection

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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

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polarconsult alaska, inc. engineers planners energy consultants

Project Status – OH Example GVEA 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

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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

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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

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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 Project CANDIDATE PROJECTS

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polarconsult alaska, inc. engineers planners energy consultants

FROM DISTRIBUTING ALASKA’S POWER NANA PACIFIC/WH PACIFIC/NANA COLT DECEMBER 2008

polarconsult alaska, inc. engineers planners energy consultants

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polarconsult alaska, inc. engineers planners energy consultants polarconsult alaska, inc. engineers planners energy consultants

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polarconsult alaska, inc. engineers planners energy consultants

QUESTIONS AND COMMENTS

polarconsult alaska, inc. engineers planners energy consultants