Gregg H. Scholz, P.E.

President, Senior Electrical Engineer

Contact: gscholz@rweng.com

About Gregg Scholz

Gregg has over 30 years of experience in the design of electrical and automation systems for commercial, municipal and industrial projects such as manufacturing facilities, wastewater and water infrastructure, office complexes, multi-resident facilities and residential community developments. His experience includes energy efficient lighting, fire alarm and security system design, telephone system selection and design, power distribution, and programmable controller system design and programming. In his spare time he enjoys working around the farm with his wife, bicycling, running, and hiking.


Bachelor of Science, Electrical Engineering, Oregon State University


Edward A. Carlisle, P.E., LEED® AP

Vice President, Senior Mechanical Engineer

Contact: ecarlisle@rweng.com

About Ed Carlisle

Ed has over 25 years of extensive experience in project management and design of diverse mechanical systems for HVAC, plumbing and process piping.  His experience includes energy audits, life cycle cost analysis, LEED energy modeling and commissioning, and he is proficient in the various mechanical, plumbing and energy codes.  He has managed many projects and designed many systems for educational, municipal, commercial, residential and industrial facilities. His career began as a designer and progressed to a Senior Level Engineer after obtaining a registered professional engineering license as well as a BS in management. Ed is now Vice President of R&W and has led the formal move into sustainable design.  He is a LEED Accredited professional who has been involved in several LEED (USGBC) projects.


Master of Arts, Strategic Leadership, Life Pacific College

Bachelor of Science, Business Management, Linfield College

Associate of Applied Science, Mechanical Engineering Technology, Portland Community College


Mark C. Wirfs, P.E.

Chairman, Senior Electrical Engineer

Contact: mwirfs@rweng.com

About Mark Wirfs

Mark has over 40 years of extensive experience in design and construction supervision services for power, indoor and outdoor lighting, and control systems including medium voltage systems for industrial, commercial and governmental facilities. His design experience includes specialized systems using standby generators and/or uninterruptible power supply systems for critical loads, energy efficient lighting systems, fire alarm systems and design of programmable controller based logic systems for industrial process controls, including development and installation of software.


Bachelors of Science, 1971, Electrical Engineering, Oregon State University


James E. Mitchell, P.E.

Senior Electrical Engineer

Contact: jmitchell@rweng.com

About Jim Mitchell

Jim has extensive experience in project management and cost control of electrical projects. He has been involved in the design and specification of commercial and industrial electrical projects for more than 35 years. He is an experienced electrical utility system planner and designer. Since 1967, he has been actively involved in outdoor station layout, bus work and grounding as well as indoor control, relay and wiring projects for industrial and utility projects. He has provided professional electrical design services on several corporate headquarters and campus-style R&D and manufacturing facilities. Jim has been particularly active in the planning and design of technology intensive facilities involving computer and telecommunication systems. Projects are characterized by heavy electrical loads and the need for extreme flexibility as program requirements change with technology.


Undergraduate Studies: Lewis and Clark College, Engineering Portland State University, Engineering IEEE – Tutorial, Transformer Applications IEEE – Tutorial, Microprocessor Applications G.E., Westinghouse, Sylvania – Lighting Application Seminars McGraw-Edison, Halo – Roadway/Sports Lighting Seminar


Douglas D. Shaw, P.E., LEED® AP

Associate, Senior Electrical Engineer

Contact: dshaw@rweng.com

About Doug Shaw

Doug has been engaged in (commercial) electrical engineering for over 37 years, four years as in Engineer-in-Training and over 33 years as a registered Professional Engineer, and has acquired a broad range of project experience. His experience includes commercial, institutional, industrial, hospitality, education and residential projects. He is uniquely qualified in indoor and outdoor athletic facility lighting design and has participated in the design of numerous park and athletic field lighting projects. Experience with several education projects, designed to achieve LEED (Leadership in Energy and Environmental Design) certification, has reinforced the value of sustainable and energy efficient design considerations on all projects. Doug maintains a commitment to the success of each project through active collaboration with clients, design team members and code enforcing agencies. He has a diverse knowledge of the electrical codes, as he has been involved in projects throughout the U.S. as well as in other countries in Africa and Eastern Europe.


Bachelor of Science, Electrical Engineering, Oregon State University


Donald C. Pfaff, P.E.

Associate, Senior Mechanical Engineer

Contact: dpfaff@rweng.com

About Don Pfaff

Don began his engineering career in 1974. He is very knowledgeable in the design and installation of various mechanical systems including HVAC, Plumbing, Controls, Piping and Fire Protection. He is an extremely experienced mechanical designer and engineer and is proficient in the specification writing process for mechanical systems. His strong communication skills enable him to relate engineering concepts and design alternates to clients as well as co-workers. During his years of experience, Don has been a designer, a Professional Engineer, a Senior Mechanical Engineer at R&W and acts as a mentor to other designers and engineers. Don is extremely adept at dealing with clients, peers, co-workers and establishing not only professional working relationships but personal friendships in the design community.


Bachelor of Science, Mechanical Engineering, Oregon State University


Jeffrey L. Howard, P.E.

Associate, Electrical Engineer

Contact: jhoward@rweng.com

About Jeff Howard

Jeff began his career with R&W Engineering in 1992. He has been involved in the design of a variety of projects providing engineering services for street lighting, interior lighting, control systems, airport lighting and power design services. It is these skills that enable him to work extremely well in the field during construction to provide valuable construction administration services to the owner. Jeff is very adept at working as a team player and has outstanding communication skills.


Bachelor of Science, Electrical Engineering, University of Portland Associate of Applied Science, Electronic Engineering Technology, Portland Community College


Greg L. Robertson

Associate, Project Manager

Contact: grobertson@rweng.com

About Greg Robertson

Greg began his career in the engineering field in 1978. His vast experience in the many phases of electrical design have provided for his ascent to a senior designer level. He has designed power systems, lighting systems, low-voltage systems for a variety of commercial, educational, hospitality, industrial, and institutional projects. It is this experience as well as his meticulous adherence to detail and accuracy that allows him to convey confidence to clients. Greg is extremely client oriented and committed to deadlines. Over the years, he has maintained a very stable and growing number of clients in the cellular phone industry and it is not unusual for him to have 10 to 12 projects on-going at a time; this allows Greg, with his commitment to service, to utilize his excellent project management skills. In Greg’s personal time he enjoys photographing wildflowers and waterfalls with his wife, camping with his grandkids, hunting in Eastern Oregon, and spending time at the beach.


Mark D. Jones, P.E., LEED® AP

Associate, Mechanical Engineer, Energy Analyst, and Commissioning Agent

Contact: mjones@rweng.com

About Mark Jones

Mr. Jones has been in the engineering field since 1996 and is a licensed engineer in Oregon and Washington. Mr. Jones is very proficient at HVAC, piping and plumbing design, energy audits, life cycle cost analysis, LEED energy modeling and commissioning, as well as knowledgeable in the various mechanical, plumbing and energy codes. In his well-rounded experience, he has designed commercial, industrial, municipal, educational and residential mechanical systems, as well as industrial process systems. He has worked on various projects with utilities and state agencies, including Energy Trust of Oregon, Clark Public Utilities, Bonneville Power Administration and Oregon Department of Energy to improve energy efficiency for clients while helping in securing rebates and incentives. He is a quality team player, with excellent communication skills, able to solve complicated design problems, who works well with all members of a building team, including owners, contractors and designers. He has taken the lead in developing and promoting R&W’s energy efficiency and commissioning services. Mark’s personal interests are fishing, woodworking, Christian ministry and spending time with family and friends.


Bachelor of Arts, Liberal Studies, Azusa Pacific University Associate of Applied Science, Mechanical Engineering Technology, Portland Community College


Heather Harris

Associate, Senior Electrical Designer

Contact: hharris@rweng.com

About Heather Harris

Heather has over 10 years of design and project management experience working on a variety of projects that include: Commercial office buildings, retail buildings, educational facilities, cellular facilities, site and roadway lighting, restaurants, places of worship institutions and vacation resorts.

One of the strongest skills that Heather brings to any design team is her ability to develop and maintain good client relationships. Her clients appreciate her strong organizational skills, tireless work ethic, effective communication, and her adaptability to different design situations. Whether it’s tenant improvement or a manufacturing facility, Heather interjects her energy, creativity and attention to detail into every project she works on.


Bachelor of Science, Electrical Engineering, Oregon State University


Sam Russum, P.E., LEED® AP

Associate, Electrical Engineer

Contact: srussum@rweng.com

About Sam Russum

Sam has over 9 years of experience in the design and integration of electrical and automated systems for commercial, municipal and industrial projects including cellular tower sites, office buildings, retail spaces, airport lighting and control, lift and booster stations, water and wastewater treatment facilities and manufacturing facilities. He has 7 years of experience with PLC, HMI and SCADA system programming and over 2 years of experience in power system analysis and coordination. He is also a LEED accredited professional who has been involved in LEED (USGBC) projects. In his free time, Sam enjoys spending time outdoors hiking, camping, snowboarding and golfing.


Bachelors of Science, Electrical Engineering, University of Portland, Daughters of the American Revolution Good Citizen Award recipient, 2000


Ilya Shor, MSEE

Senior Power Systems Specialist

Contact: ishor@rweng.com

About Ilya Shor

Ilya has over 50 years of experience in electrical engineering. He has over 25 years with extensive and progressive experience in design, testing and maintenance of electrical distribution systems, overcurrent protection, PLC programming, variable speed drives, and UPS systems. His experience also includes performing power monitoring and power factor analysis for major industrial and municipal clients.


Polytechnical Institute, Odessa, Ukraine – BS/MS in Electrical Engineering Portland Community College, Portland, OR – Advanced Allen-Bradley and GE PLCs Programming, Advance Microcomputer Systems Service.