Resource Library

Phius Co-Executive Director Lisa White recounts her experience speaking at and attending RE+.

A GreenHome Institute webinar discussing electrification trends and solar projects.

Phius Associate Director Lisa White discusses the Architect's Guide to Ultra-Low-Energy Buildings, Microgrids & Direct Current, developed for the AIA by Phius through funding provided by an Upjohn Research Initiative grant.

This GreenHome Institute webinar articulates how individual health and community health can benefit from solar energy.

In Part II of our Facilitating the Renewable Transition blog series, Phius Associate Director Lisa White examines how passive buildings interact with the grid and how that relationship is evolving.

Phius Associate Director Lisa White examines the interactivity between passive buildings and the future of the grid.

Phius professional Trey Farmer details his experience living in a Phius home during winter storms in Texas.

When pursuing carbon neutrality for a new affordable housing development, what’s the best approach? More solar panels? An open-loop ground source heat pump system? Or improved building envelope achieved through pursuit of PHIUS+ 2018 standards? These were the questions posed by the Community Action Center of Northfield (CAC) in Minnesota as they work to construct a high quality, long-lasting affordable housing development at the forefront of modern sustainable building practices. The consultant project team will share the results of their study comparing three scenarios: achieving net-zero energy through PHIUS+ 2018 certification compared to standard construction with additional renewable energy or a geothermal system.

The checklists below provide links to guides that provide installation instructions for each measure included in the checklists.
The PV-Ready Checklist is mandatory for all Phius projects.
The solar-hot water checklist is no longer mandatory, but builders are encouraged to meet it.

Only applies to PHIUS+ CORE (2018) & Phius CORE 2021 projects. An estimate of coincident production-and-use of energy from on-site renewable energy systems (such as PV) may be included in the Net Source Energy calculation for Phius Certification. The amount of source energy that may be offset by a renewable electricity source depends on the utilization factor. This can be calculated by determining the coincident production-and-use fraction of the generation. If using PV without battery storage, use this calculator to determine your climate specific onsite utilization factor.