PRIMARY OFFICE: Lincoln, Nebraska

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PHONE: 402-464-3833

"Ray's shown a willingness to put the extra time and effort into his work that is evident to those he associates with. His penchant for volunteering his time to the engineering community reflects his devotion to the field and its practice"
- Mike Herzog, PE | Senior Transmission Planning Engineer
"My emphasis on sustainability began in the early 70's with passive and active solar heating. Creative uses with water allowed my family to irrigate a garden and complete laundry by adapting existing technology to new uses."
- Ray Cederdahl
 Ravi ManiktalaRick ManiktalaNateManiktalaPete JeffersonAndrew ThompsonDebbie SwansonRay Cederdahl