To comply with state and local building codes, your contractor must have a CCB license. Ask the contractors you are considering for their number, and go to Oregon Construction Contractor's Board tomcheck them out.
The Energy Trust of Oregon requires systems receiving their incentives be installed by one of their certified Trade Allies. These contractors have been trained to make sure your system is designed to meet all of the qualification requirements including TSRF (Total Solar Resource Fraction).
To be eligible for Oregon's Residential Energy Tax Credit, Oregon requires the contractor hold a valid Tax Credit Certification. For a list of contractors with these certifications go to Oregon Department of Energy website.
The North American Board of Certified Energy Practitioners (NABCEP) provides nationally recognized training and certification for solar industry professionals. You can read further about NABCEP on their website.
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