Kim Reitterer, President, PE, LEED AP BD+C

Ms. Reitterer is the founder and majority owner of Elm Engineering, Inc. She has over 30 years of experience auditing and designing energy efficient lighting, daylighting, lighting controls, and electrical systems for a variety of building types. She performs energy audits and measurement and  verification of lighting and electrical systems. Renewable energy systems designs include photovoltaic systems, solar thermal, wind, geothermal, waste to heat and waste to cooling systems.

She has designed Microgrids using photovoltaic systems and local distributed power generation. She performs facility audits for lighting and power energy and is an award winning lighting designer. Ms. Reitterer is a frequent speaker at local and national  conferences on microgrids, energy audits, lighting, sustainability, and power systems.



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William Aldridge, PE, QCxP

Mr. Aldridge is the mechanical department manager for Elm Engineering, Inc.  He performs mechanical commissioning, and is a Qualified Commissioning Provider.  He is a results driven professional engineer with an exemplary record of meeting project deadlines.

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Derk Beutler, CPD, CET, ARCSA AP

Mr. Beutler manages the fire protection and plumbing team of engineers and designers.  Mr. Beutler is an expert in fire sprinkler system and rainwater catchment systems.  He has over 27 years of experience in fire protection and plumbing systems design and construction.

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Corporate Office

900 Center Park Drive
Suite E
Charlotte, NC 28217
P: 704-335-0396
F: 704-335-0399

Massachusetts Office

3 Stagecoach Way
Cohasset, MA 02025
P: 919-985-4404