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

Ken Johnner is a Registered Consulting Arborist in the American Society of Consulting Aborists (ASCA). He is also a Certified Arborist in the International Society of Arboriculture (ISA).

Mr. Johnner is the owner of Johnner Tree Diagnostics specializing in Residential Tree Care and consulting.

Services Include:

Ivan Katzer is an ISA Board Certified Master Arborist with hundreds of hours of continuing education. He currently owns and has managed a tree care service for over 40 years. As an Expert Tree Consultant / Tree Expert, Mr. Katzer's services are used by municipalities, utility companies, insurance professionals, the courts and attorneys in such specialties as Personal Injury, negligent trespass, landscape valuation and appraisal.

Areas of Service Include:

• Electrocution, Utility Pole, Power Line Issues
• Utility Easement, Right of Way Complaints
• Line of Sight and other Safety Issues
• Tree Accident Investigation & Accident Reconstruction
• Personal Injury related to Tree DefectsParks and other Public Areas
• Tree Value, Plant Damage Assessment
• Tree Appraisal, Valuation of Landscape Plants
• Tree Inspections, Risk Assessment
• Tree and Neighbor Law Issues - Border and Boundary Line Tree Disputes
• Issues of Negligent / Intentional Trespass and Property Damage
• Insurance Claim Investigation
• Lightning / Storm Damage Evaluation
• Tree Preservation During Construction
• Loss to Eminent Domain Taking

John A. Harris, Principal of Landscape Economics, LLC, and President of Earth Advisors, Inc., is a LANDSCAPE ECONOMIST who has worked in the Arboriculture, Forestry, landscape and horticultural fields for over 20 years. Mr. Harris has provided reputable consulting, education and project management services for a wide variety of projects across the United States and internationally, in both temperate and tropical ecosystems.

Areas of Expertise:

Steven Geist, Plant Pathologist, has 25 years of Landscape Care Experience with Swingle Lawn, Tree and Landscape Care in Denver, Colorado. He is a Registered Consulting Arborist, ISA Board Certified Master Arborist, and a Certified Professional Agronomist.

Mr. Geist specializes in working with urban landscapes, diagnosing plant problems and designing solutions. As part of his work at Swingle, he has had the opportunity to consult with homeowners concerned with a single tree all the way up to 1,000 acre casualty losses.

Mr. Geist's consulting has included property in Wyoming, Kansas, Colorado and NewMexico.

Russell E. Carlson is a Registered Consulting Arborist, ISA Board Certified Master Arborist and Forensic Arborist.

Qualifications: