Skip to main content

- What is Passive Building?
  Your passive building questions, answered
  
  Passive Building
  
  Passive Building Principles
  
  Passive Building FAQs
  
  A Better Way to Zero
  
  Passive Building Foundations Training
- Sectors
  Passive isn't just for houses
  
  Single-Family
  
  Multifamily
  
  Office Buildings
  
  Schools
  
  Other Non-Residential
- Projects
  Phius Certified Projects are the most energy efficient and comfortable buildings in the world
  Find a Project
  
  Project Certification
  
  Submit a Project
  
  Certification Review Queue
- Products
  Phius Certified Products are guaranteed to perform to passive standards
  View Products
  
  Product Certification Overview
  
  Window Certification
  
  Panel Certification
- Professionals
  Phius Certified Professionals are on the cutting edge of high-performance building
  Find a Professional
  
  Phius Certified Consultant (CPHC®)
  
  Phius Certified Builder (CPHB)
  
  Phius Certified Rater
  
  Phius Certified Verifier
  
  Phius Associate
  
  Maintain Credentials
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.
Categories
October 16

Phius CORE Prescriptive Path Workshop | October 2024
Dive into Phius' energy model-free certification path!
Upcoming Sessions
- Sept Member Office Hours - Project Questions
  September 10
- Phius Certified Builder Training and Certification Exam | Freeport, ME | September 2024
  September 11 – 13
- Phius Certified Builder Exam | Freeport, ME | September 2024
  September 13 – October 13
- Phius Certified Builder Training and Certification Exam | September 2024
  September 16 – 27
- Policy Work
  Promoting policies designed to grow passive building
  Policy Database
  
  Incentives
  
  Codes
  
  Qualified Allocation Plans
  
  Cost Data
- Tools and Support
  Providing the tools you need to create healthier buildings
  Resource Library
  
  Certification Support
  
  Calculators and Protocols
  
  Feasibility Study
  
  WUFI Passive Design Tool
  
  Climate Data
  
  Quality Assurance
  
  Tech Corner

Project 2225

Solstice Northeast

Minneapolis, Minnesota

Building Function

Multifamily
Project Type

New Construction
ASHRAE Climate Zone

6A - Cool - Humid
Construction Completion

2024
Status

Final Certified
INT. Conditioned Floor Area

17880 sq. ft.

Core Project Team

Phius CPHB

Patrick Simpkins
Phius Certified Verifier

Jacob Selstad
Phius CPHC (Lead)

Abby Meuser-Herr
Project Submitter

Abby Meuser-Herr

Project Information

- Developer
  
  Footprint Development
- Architecture Planning
  
  The True North Studio
- Construction Company
  
  Copeland Building
- Building Function
  
  Multifamily
- Project Type
  
  New Construction
- Number of Units
  
  23
- Number of Stories
  
  4
- Program Version
  
  Phius CORE 2021
- All Electric
  
  Yes
- INT. Conditioned Floor Area
  
  17880 sq. ft.
- Status
  
  Final Certified
- Design Certification
  
  May 1, 2023
- Final Certification
  
  June 29, 2024
- Construction Completion
  
  2024
- ASHRAE Climate Zone
  
  6A - Cool - Humid
- Region
  
  Midwest

Performance

- Annual Heating Demand
  
  2.46
- Annual Cooling Demand
  
  3.55
- Peak Heating Load
  
  4.27
- Peak Cooling Load
  
  2.47
- Site Energy Use Index (EUI)
  
  22.63
- Site Energy Use Index (w/Renewables)
  
  17.12
- Compliance Software
  
  WUFI Passive
- Source Energy (Residential)
  
  3619
- Source Energy (Residential w/Renewables)
  
  2635
- Air Tightness (per enclosure area)
  
  0.057

Enclosure

- Window Manufacturer 1
  
  Alpen

Systems & Equipment

- Ventilation System Manufacturer
  
  Minotair
- Measured Ventilation Fan Efficiency
  
  0.85
- Heating System Manufacturer
  
  Minotair, Carrier
- Cooling System Manufacturer
  
  Minotair, Carrier
- Hot Water System Manufacturer
  
  Rheem
- Renewable Energy Type(s)
  
  On-Site PV
- Renewable Energy Annual Production
  
  42046
- Renewable Energy System Size
  
  33.75