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- What is Passive Building?
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Our Approach
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  Phius CORE and Phius ZERO provide the path for constructing a Phius building from the ground up.
- Retrofit
  Upgrade existing buildings to Phius standards using Phius CORE REVIVE and Phius ZERO REVIVE.
- Commercial
  Phius standards aren't just for residential buildings. Phius CORE COMM and Phius ZERO COMM can be applied to any non-residential building.
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December 1 – January 16

Phius Certified Trades Professional - Enclosure Specialist Training | December 2025 & January 2026 | Portland, OR
Become a Phius Enclosure Specialist!
Upcoming Sessions
- Member Office Hours - Projects
  December 9
- Jan. Webinar: Walking Through METr
  January 13
- Member Office Hours - METr
  January 20
- Phius Certified Builder Training and Certification Exam | January 2026
  January 20 – 30
- Policy Work
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Passive Building
- What is Passive Building?
  Your passive building questions, answered
- Sectors
  Passive isn't just for houses
Certifications
- Projects
  Phius Certified Projects are the most energy efficient and comfortable buildings in the world
  Find a Project
- Products
  Phius Certified Products are guaranteed to perform to passive standards
  View Products
- Professionals
  Phius Certified Professionals are on the cutting edge of high-performance building
  Find a Professional
Standards
Our Approach
- New Construction
  Phius CORE and Phius ZERO provide the path for constructing a Phius building from the ground up.
- Retrofit
  Upgrade existing buildings to Phius standards using Phius CORE REVIVE and Phius ZERO REVIVE.
- Commercial
  Phius standards aren't just for residential buildings. Phius CORE COMM and Phius ZERO COMM can be applied to any non-residential building.
Education
Categories
Upcoming Sessions
- Member Office Hours - Projects
  December 9
- Jan. Webinar: Walking Through METr
  January 13
- Member Office Hours - METr
  January 20
- Phius Certified Builder Training and Certification Exam | January 2026
  January 20 – 30
December 1 – January 16

Phius Certified Trades Professional - Enclosure Specialist Training | December 2025 & January 2026 | Portland, OR
Become a Phius Enclosure Specialist!
Resources
- Policy Work
  Promoting policies designed to grow passive building
  Policy Database
- Tools and Support
  Providing the tools you need to create healthier buildings
  Resource Library
About Us
Our People
Phius Alliance

Quick Links

Policies

Details

Projects

Incentive

Minneapolis Homes: Financing Program Guidelines

Minneapolis Homes

Minneapolis Minnesota

Area(s) Covered Phius Design Certification Sponsor Minneapolis

Incentive

Passive Design/Build Boot Camp

Emu Passive

Colorado

Area(s) Covered Phius Certified Builder (CPHB) Training Sponsor Xcel Energy

Incentive

Residential New Home Construction

Xcel Energy

Colorado

Area(s) Covered Phius Design Certification Phius Final Certification Sponsor Xcel Energy

Eason Triplex Unit C Harris Alley Passive House

Incentive

Passive Building Incentive

Austin Energy

Texas

Area(s) Covered Phius Design Certification Phius Final Certification Sponsor Austin Energy

Saginaw Passive House Townhomes - Building 1

Incentive

Passive House Design Challenge

Massachusetts Clean Energy Center

Massachusetts

Area(s) Covered Phius Design Certification Sponsor Massachusetts Clean Energy Center

Incentive

Affordable Housing New Construction Program

Illinois

Area(s) Covered Feasibility Study Phius Design Certification Phius Final Certification Phius Certified Builder (CPHB) Training Phius Certified Consultant (CPHC) Training Phius Certified Rater Training Phius Certified Verifier Training Sponsor ComEd

Incentive

Advanced Technology Bonuses for New Construction Projects

California Energy-Smart Homes

California

Area(s) Covered Phius Final Certification Sponsor Energy-Smart Homes

Incentive

Seattle City Light 2021 Energy Conservation Incentives

Seattle City Light

Seattle Washington

Area(s) Covered Phius Final Certification Sponsor Bonneville Power Authority

Incentive

Buildings of Excellence

NYSERDA

New York

Area(s) Covered Phius Final Certification Sponsor NYSERDA

Lake Bosworth Passive House 1182 Woodycrest North Miller Passive Multifamily

Incentive

Eversource Passive House Incentives

Connecticut

Area(s) Covered Feasibility Study Energy Modeling Phius Final Certification Phius Certified Builder (CPHB) Training Phius Certified Consultant (CPHC) Training Phius Certified Rater Training Phius Certified Verifier Training Sponsor Eversource