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Underground Transmission

Event Description and Agenda:

New transmission projects are being proposed, planned and built all over the US and Canada and the reasons for going underground vary widely. In some cases going underground is necessary in order to bring a project to completion, based on public pressure or constrained space. Going underground with transmission has traditionally been a transmission owner's last resort because the cost of underground transmission is many times the cost of overhead transmission and maintenance and repair has proved costly and difficult. However, advanced cable technologies are being developed, installation techniques have expanded in terms of options and efficiency while cost factors have improved.

This conference will engage attendees in examples of recent underground projects and the challenges and lessons learned from those as well as technology advancements and challenges facing projects. The meeting will end with a tour of Nexan's new cable factory.

Thursday, January 22, 2015

8:00 - 8:30 a.m. :: Registration and Continental Breakfast

8:30 - 8:50 a.m. :: Welcome and Opening Comments

Pierre Kayoun, VP of Sales & Marketing, HVUC Business Group, Nexans

8:50 - 9:35 a.m. :: SCE's Tehachapi Renewable Transmission Line Underground 500 kV Transmission Line

This case study will cover this first of its kind project in North America. This project will deliver renewable electricity from wind and solar generators from the Tehachapi Mountains in Kern County running southward through the Angeles National Forest and eastward to an existing substation in Ontario, CA.

Sandra Blain, Principal Manager, Major Projects Organization - Transmission and Distribution, Southern California Edison

9:35 - 10:20 a.m. :: Underground Transmission - AC and DC, Challenges and Benefits

  • Overview
  • Challenges
  • Benefits

Clarke Bruno, Senior Vice President, Anbaric Transmission

10:20 - 10:40 a.m. :: Networking Break

10:40 - 11:20 a.m. :: HV Cable Testing Methods

Discussion on High Voltage (HV) and Extra High Voltage (EHV) cable testing technologies using Resonance test systems when combined with Partial Discharge diagnosis to provide the ultimate testing solution for underground transmission cable systems.

Hassan Younes, Service Line Leader, Stations and Underground Cables, Kinetrics

11:20 a.m. - 12:00 p.m. :: Case Study: Installation Methods for SMECO 230kV Patuxent River Crossing Project

The beginning of November 2014, Southern Maryland Electric Cooperative, Inc. energized the new 2.1 mile 230kV underground transmission line near Solomons, Maryland. This project included six segments with 5 manholes (15 splices) and 2 riser structures (6 terminations). Project challenges included a 4542' pull in fPVC pipe bored underneath the 110' deep Patuxent River, the longest 230kV 3200kcmil XLPE cable pull in the industry to date.

John Bredenkamp, Project Manager & Service Director, Southern Maryland Electric Cooperative, Inc.

Morgan Myers, Project Manager, New River Electrical Corporation

Johnny Lanning, Sr. Vice President, New River Electrical Corporation

12:00 - 1:00 p.m. :: Group Luncheon sponsored by Underground Devices

1:00 - 1:45 p.m. :: Dubai 400 kV Turnkey Project

This presentation will cover a full EPC project, from the engineering to the commissioning, of the new 400 kV underground transmission circuit in Dubai for DEWA (Dubai Electricity and Water Authority), including the HV system design and its supply, the civil works, the ventilation system and all the ancillary systems. All aspects of the project will be presented.

Pierre Kayoun, VP of Sales & Marketing, HVUC Business Group, Nexans

1:45 - 2:30 p.m. :: Newark Energy Center 230 kV Underground Interconnection

ABB recently commissioned a 230 kV underground interconnect for a new gas power plant at the Newark Energy Center. The presentation will describe the design, construction, installation and commissioning of the cable system.

Fahrudin Mekic, Director, ABB

2:30 - 3:00 p.m. :: Networking Break

3:00 - 4:00 p.m. :: Northeast Utilities' Stamford Reliability Cable Project

This case study presentation will detail the components and challenges of Northeast Utilities 115 kV transmission reliability cable project in Stamford, Connecticut.

Anuj Mathur, Sr. Project Manager, Northeast Utilities

Les Hinzman, Sr. Project Engineer, POWER Engineers, Inc.

4:00 - 5:00 p.m. :: Panel Discussion on the Challenges Facing Underground Transmission Projects

Moderator

Vincent Curci, Sr. Project Manager, HDR

Panelists

Pierre Kayoun, VP of Sales & Marketing, HVUC Business Group, Nexans

Bill Albin, Director of HV Marketing & Sales, Energy Division, Southwire Company

Fahrudin Mekic, Director, ABB

Russell Pennington, Vice President Sales, High Voltage Cable Systems, Prysmian

5:00 - 6:00 p.m. :: Networking Reception sponsored by Sargent and Lundy

Friday, January 23, 2015

7:30 - 8:00 a.m. :: Continental Breakfast

8:00 - 8:45 a.m. :: Design Considerations for a 115kV Underground Transmission Line in Soils with Low Thermal Resistivity

The presentation will describe the thermal resistivity test results, analysis techniques, and the thermal backfill utilized to meet the required cable ampacity.

Dennis O'Reilly, Senior Manager, Sargent & Lundy LLC

8:45 - 9:40 a.m. :: Exelon's Burnham Taylor 345 kV Project Case Study

This presentation will discuss the design, construction and testing of Exelon's Burnham-Taylor 345kV project. This critical project consisted of constructing approximately 6 miles of 345kV XLPE cable in new duct packages (two cables per phase) between the Garfield and Taylor substations. The existing two HPFF cables were reconfigured to a single circuit and substation equipment upgraded to accommodate the changes. This project included the supply and installation of approximately 240,000 ft of 1600mm2 / 345kV cable, over 100 splices, and both outdoor and GIS terminations.

Frank Frentzas, Technical Expert Underground Transmission, Exelon

Paul Pisani, Vice President Sales, High Voltage Cable Systems, Prysmian

9:40 - 10:00 a.m. :: Networking Break and Boarding Bus for Tour

10:00 a.m. - 1:00 p.m. :: Nexans Cable Factory Tour*

10:00 a.m. :: Bus Leaves Conference Hotel

10:30 a.m. - 10:45 a.m. :: Introduction to Nexans High Voltage

10:45 a.m. - 12:30 p.m. :: Nexans Factory tour

1:00 p.m. Bus :: Returns to Conference Hotel

The Nexans factory in Goose Creek, S.C. will host attendees for a tour of this new state-of-the-art cable manufacturing facility. Participants are requested to wear comfortable, closed-toe shoes. Other required PPE will be provided by the host. Although there is no cost associated with the tour, we ask that you register so that we can plan accordingly for transportation.

*The tour will be open to all conference participants except for cable manufacturers and direct competitors to Nexans at the discretion of EUCI.

1:00 p.m. :: Conference Adjourns

 

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