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Power Lines (Tree Contact) Expert Witnesses

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Siegfried Guggenmoos
President
Sherwood Park T8A 0T8
CAN
phone: 780-467-6389
fax: 780-467-6389
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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
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

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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R. John Miner, P.E.
President
12807 Aqua Valley
Helotes TX 78023
USA
phone: 512-506-9007
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R John Miner Utility Industry Expert PhotoR. John Miner, PE, is an accomplished executive manager, engineer, educator and consultant with over 40 years of experience in the Utility Industry. He is Owner and President of Collaborative Learning, Inc. established in 1995, also doing business as Collaboration Unlimited and located in Austin and San Antonio, Texas. In this capacity, Mr. Miner provides a wide range of management and technical consulting, litigation support, and educational services. His clients include both public and private sector electric utilities, utility and technical associations, educational institutions, and law firms.

Litigation Support - Mr. Miner provides expert litigation support on matters involving contractual disputes, electrical accidents, and compliance with both the National Electrical Safety Code (NESC - ANSI Standard C-2) and OSHA regulations applicable to electric utility distribution systems. He routinely presents seminars and short courses throughout the U.S on electrical distribution system design, construction, operation, and maintenance as well as electrical safety and the NESC.

Areas of Expertise:
  • Electricity and Safety
  • Electric Utility
  • Utility Management
  • National Electrical Safety Code (NESC)
  • OSHA Issues
  • Electrical Accident Investigation
  • Electric Utility Contracts
  • Power Plants
  • Power Lines
  • Electrical Distribution
  • Substations
  • Electrical Safety
  • High Voltage Accidents
  • Lineman Accidents
  • View R. John Miner's Consulting Profile.
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    Helmut G. Brosz
    President & C.E.O
    See Website for USA Office Address
    64 Bullock Drive
    Markham Ontario L3P 3P2
    CAN
    phone: 905-472-6660
    fax: 905-472-6665
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    Brosz & Associates are Electrical Experts headed by President and C.E.O., Professor Helmut G. Brosz, B.A.Sc., D.B.A., F.A.A.F.S., P. ENG., Adjunct Professor at Ryerson University, Adjunct Assistant Professor at University of Toronto.

    They provide a wide range of highly specialized Forensic Science and Engineering, Accident Reconstruction, Testing, Commissioning, and Technical and Scientific Services. Their staff of specialists and experts have completed over 5,200 assignments since 1970 ranging from electrical accidents and electrocutions to electrical power system investigation and testing of equipment failures including circuit breakers, motors, switchgear, generators, transformers and appliances.

    Their engineering facilities at Brosz & Associates enables them to perform in-depth research, electrical testing, forensic laboratory testing, microscopy, macro photography and photographic documentation, X-Ray testing, infrared testing, high voltage testing, high current testing and more. Most of their testing equipment is portable and they are also capable of producing professional collages and scale models for reports, mediations, depositions and trial.

    Their clients include insurance companies, legal firms, adjusters, risk managers, manufacturers, contractors, utilities, governments and individuals.

    Services Include:
  • Cause and Origin Investigations
  • Failure Analysis
  • Loss Prevention and Mitigation
  • Subrogation Support for the Insurance Industry
  • Electrical Safety and Accident Prevention
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    Daniel J. Maple, BCMA, RCA, MA, TRAQ
    9507 N. Division St., Suite K-1
    Spokane WA 99218
    USA
    phone: 509-953-0293
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    Daniel J. Maple, BCMA, RCA, MA, TRAQ, is a Registered Consulting Arborist, Board Certified Master Arborist, ISA Municipal Specialist, ISA Tree Risk Assessment Qualified, and holds a Commercial Applicators License. As of August 2017, there are 284 RCAs, 698 BCMAs, and 884 MSs in the world. Mr. Maple has the distinction of having all of these qualifications as well as others.

    With over 30 years of industry experience, Mr. Maple has provided ethical, scientific sound arboriculture solutions to both the public and private sector. During this time, Mr. Maple owned and operated a tree service, and was a first responder in several natural disasters that resulted in thousands of tree failures. His investigations into the tree failures and the experience gained makes him uniquely qualified among his peers as a risk assessor and risk mitigation planner. Mr. Maple has used his years of hands on experience along with his formal education to advise states, cities, parks, developers, managers, HOAs and the private sector.

    Litigation Support - As an expert witness, Daniel J. Maple is well respected for his ability to document evidence, superior communication skills, forensic investigations, and pragmatism. He is articulate and knowledgeable under cross-examination. Mr. Maple's services are available to attorneys representing both plaintiff and defendant.

    Areas of Expertise:
    • Line of Sight / Safety Issues
    • Tree Accident Investigation / Reconstruction
    • Tree Defect Personal Injury
    • Plant Damage Assessment
    • Tree Property Value
    • Tree Appraisal
    • Valuation of Landscape Plants
  • Tree Inspections and Risk Assessment
  • Border and Boundary Line Tree Disputes
  • Negligent or Intentional Timber Trespass
  • Insurance Claim Investigation
  • Lightning / Storm Damage Evaluation
  • Tree Preservation During Construction
  • Loss to Eminent Domain Taking
  • View Daniel Maple's Consulting Profile.