Power Lines (Tree Contact) Expert Witnesses: 2

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Electrical (Electrocution)

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Siegfried Guggenmoos, B.Sc.(Agr.), P.Ag., Principal of Ecological Solutions, Inc. is a Professional Agrologist, with over 30 years of experience in the electric/gas utility corridor vegetation management business.

Mr. Guggenmoos has designed, implemented and provides assessments of utility vegetation management programs. In evaluating the prudence of vegetation management programs Mr. Guggenmoos has developed methodologies to assess their efficacy by predicting the impact of vegetation management program as practiced, on the future costs and reliability of electric systems.

Areas of Consultation:

Storm hardening electric transmission and distribution systems to quantitatively manage tree-caused service interruptions
Advise and develop protocols for assessments of power line tree exposure and mitigation
Advise on least cost vegetation management by synchronizing economics and ecology
Advise on impacts of vegetation management program alternatives, modifications
Provide context for vegetation management, greenhouse gas mitigation measures in a competitive energy market
Facilitate for management, staff, contractors and stake holders an actionable understanding of ecological principles and their impacts on vegetation management needs and costs
Provide project management; expert review of programs and proposals
Develop and advise on quantification, monitoring and verification of biotic greenhouse gas mitigation measures

• View Mr. Guggenmoos' Curriculum Vitae

• Client Testimonials

10/22/2008 · Electrical - Electrocution

Increased Risk of Electric Service Interruption Associated with Tree Branches Overhanging Conductors

By: Siegfried Guggenmoos

Abstract — Severe weather events such as ice and tropical storms routinely cause extensive damage to electrical distribution systems. Much of the damage and service loss can be attributed to trees. Events where service restoration spans days or weeks are generally closely examined through regulator directed hearings. Even when no specific actions are subsequently

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10/22/2008 · Electrical - Electrocution

Outside Right-of-Way Tree Risk Along Electrical Transmission Lines

By: Siegfried Guggenmoos

Abstract - For power transmission systems compliant with safety codes and reliability standards there remains a risk of tree-caused interruptions from the in-fall of trees from outside the right-of-way. This paper reports on the quantification of tree exposure outside National Grid’s transmission corridors and examines the variables impacting the risk of a line contact by trees

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A Licensed Professional Engineer in 11 states, John Averrett specializes in Electrical Shock / Electrocution, Utilities, Lightning Strikes, and Grounding cases involving death, personal injury, industrial equipment failure, vehicular accidents, fire cause/origin, contract, and construction disputes.

Areas of practice include: Alabama, Florida, Georgia, Mississippi, Tennessee, South Carolina, North Carolina, Kentucky, Arkansas, Louisiana, and Texas; other states by comity.

John Averrett is Executive Vice President of Goodwyn Mills & Cawood headquartered in Montgomery, AL. He has more than 25 years' experience in plan development for governmental, municipal, industrial and commercial clients and is currently coordinating a group of twelve other electrical engineers and designers. In addition to his design efforts, Mr. Averrett's experience includes work with electric utilities that includes transmission, sub-stations, and distribution; work with investigating lightning strikes; work with investigating grounding insufficiencies; and work analyzing and providing solutions for arc flash hazards.

Litigation Support - Mr. Averrett offers expert witness services to attorneys representing plaintiff and defendant. He provides site review, thorough reporting, deposition, and trial testimony as needed nationwide.