Electric Transmission

Meet the Electric Transmission Program Development Team. Learn more about the Operations Conference.

Wednesday, April 21, 2021

9:00 AM – 10:15 AM
Technological Innovations
Speaker: Duffy Haggerty, Survey Manager, David Evans and Associates, Inc.
This session will review several technological innovations that are making transmission jobs possible during COVID-19 restrictions.

1:00 PM – 2:15 PM
Designing Resiliency: Best Engineering Practices for the Unexpected
Speakers: Sara Schroeder, Senior Project Engineer, Department Manager, POWER Engineers, Inc.
Dave James, Wildfire Resiliency Program Manager, Avista Corp.
From design code changes to rebuilding impacted transmission lines, Designing Resiliency will take a look at industry practices for planning for and recovering from major system disruptions.

Thursday, April 22, 2021

9:00 AM – 10:15 AM
Recent Transmission Projects: Conquering Urban Design + Construction Constraints
Speakers: Marvic Verzano, Transmission Line Engineer, Pacific Gas and Electric Company
Hudson Foley, VP Business Development, Maskwa Environmental Consulting LTD
Matt Nicholson, Transmission Engineer, Black & Veatch
This session will showcase two recent transmission projects in California that overcame significant urban construction constraints, and contain a third presentation on siting and permitting considerations. Pacific Gas & Electric (PG&E) and Black & Veatch will discuss the design decisions made to complete the San Bruno Interchange Construction Project. Maskwa Environmental Consulting Ltd. will present on how key facility construction and operational considerations can be incorporated into overall siting and permitting approaches for transmission facilities in both urban and rural environments. Los Angeles Power & Water District (LADWP) will share how it has nearly completed the Valley Rinaldi overhead line upgrade and reconductoring in spite of significant construction and outage constraints.

PG&E San Bruno Interchange Construction Project
The project utilized existing infrastructure comprised of buried below-grade steel pipe to remove and replace aging HPGF transmission cable with an innovative XLPE cable bundle. Several challenges were overcome during design and construction including: replacement of existing steel and foundations during limited clearance windows, reuse without removal of existing cable terminations, foundation designs that accounted for San Francisco bay mud geotechnical conditions, future-proofing the design of structures and foundations to account for the future re-cabling of adjacent circuits and adapting existing infrastructure for new cable technologies.

Siting and Permitting Considerations
Maskwa Environmental Consulting Ltd. will present on how key facility construction and operational considerations can be incorporated into overall siting and permitting approaches for transmission facilities in both urban and rural environments.  The presentation will highlight how overall impacts can be considered and potentially mitigated to achieve cross-discipline needs as well as the common challenges encountered.  Real examples will be used to highlight and share learnings with attendees, with a focus on how long-term operational considerations play an important role in upfront facility planning and permitting activities such as siting.

12:30 PM – 1:45 PM
Old Equipment – New Needs
Speaker: Dan Nunez, Civil Engineer, Bonneville Power Administration
BPA will share its success developing a CHR plan (criticality-asset health-risk) followed by a panel on aging infrastructure and the ever-evolving grid. The panel will look at how to balance an aging system and new grid requirements within budgetary constraints.