Northwest Energy Collaborative (NWECB) is a Portland-based building performance consulting and verification firm specializing in multifamily and mixed-use new construction. NWECB provides National Green Building Standard (NGBS) verification, ENERGY STAR certification, HERS ratings, and whole-building energy modeling (ASHRAE 90.1 and ERI). Beyond certification, NWECB delivers advanced envelope and life-safety testing services including whole-building blower door testing, stairwell pressurization testing, air barrier consulting, ASTM E1105 water penetration testing, ASTM E783 air leakage testing, and enclosure performance diagnostics. The firm works directly with developers, architects, general contractors, and public agencies to reduce construction risk, improve durability, and ensure code compliance. With deep experience in affordable housing and utility incentive programs across the Pacific Northwest, NWECB helps project teams align sustainability goals with financial performance — capturing incentives, minimizing liability, and delivering measurable building performance.
Our Services:
• Green Building Certification: We provide third-party verification for programs such as ENERGY STAR, National Green Building Standard (NGBS), and EPS.
• Building Design Consulting & Code Compliance: We assess and verify construction practices to ensure they meet green building standards and energy performance benchmarks.
• Building Performance Testing: We perform various building testing services, including envelope, ventilation, and duct testing, to optimize building energy performance.
• Green Building Construction Training: We work with LatinoBuilt to facilitate bilingual Spanish/English training that equips construction crews and trade professionals with best practices for high-performance, energy-efficient buildings.
Firm Qualifications:
• RESNET HERS Raters
• NGBS Green Verifiers
• ENERGY STAR Verifiers MF/SF
• DOE ZERH Verifiers MF/SF
• Enterprise Green Communities Verifiers
• Energy Trust of Oregon Trade Allies and EPS Verifiers
• DOE Zero Energy Ready Homes (ZERH)
• BPI Building Analyst
