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universal interoperability for grid-forming inverters

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Cover image credit: Agata Bogucka, NLR 038651.

Quick facts about Unifi

What is UNIFI?

Latest Newsletter

UNIFI Members

Global grid-forming 

What we do

Unifi is developing technologies to guarantee the interoperability of grid-forming (GFM) power electronics deployed on the grid to ensure reliability, security, and affordability. We bring together leading researchers, industry stakeholders, utilities, and system operators to unify the integration and operation of inverter-based resources and synchronous machines. Unifi conducts and coordinates research, development, and demonstration, as well as creates educational- and workforce-training materials focusing on planning, designing, and operating grids with a high level of GFM.

unifi Consortium infographic.

Latest News & Events

What We Offer

resources

unifi work efforts in research & development, demonstration & commercialization, and outreach & training generate a variety of resources to facilitate technology development and accelerate the adoption of grid-forming inverters. Our portfolio of publicly accessible resources include

  • UNIFI Performance Specifications for GFM IBRs
  • Annual newsletters summarizing unifi activities
  • Technical publications from team members
  • Educational material curated across levels
  • Videos from our seminar series

activities & products

Seminar Series

Register for the Spring 2026 Seminar Series here.

Check out archived videos on our YouTube channel.

UNIFI GFM Performance Specifications

Read all about our latest specifications for grid-forming technologies authored by consensus across industry.

View unifi’s GFM performance specifications →

join unifi today!

By becoming a unifi member, you will join the group of researchers and engineers from across academia and industry driving advances in GFM technologies. Membership unlocks access to a broad range of activities spanning from conducting research, development, and demonstration to formulating effective mechanisms for workforce training. You can join at different levels depending on your organizational type and needs.

Members

Opal-RT logo.
Terabase logo.
Sandia National Laboratories logo.
University of Illinois logo.
Hitachi Energy logo.
EATON logo.
Berkley logo.
Southern Company logo.
Perdue University logo.
Xcel Energy logo.
University of Minnesota logo.
SMA logo.
Enphase logo.
Mitsubishi Electric logo.
Pacific Northwest National Laboratory logo.
Hawaiian Electric logo.
ISO New England logo.
ComEd logo.
EPRI logo.
University of Alaska logo.
University of Wisconsin logo.
Portland General Electric logo.
University of Texas logo.
NLR-logo
NC State University logo.
Pacific Gas & Electric Company logo.
Siemens logo.
State of New York logo.
Berkeley Lab logo.
General Electric logo.
Southern California Edison logo.
MISO logo.
Typhoon Hil logo.
University of Puerto Rico logo.
Virginia Tech logo.
ASU logo.

The Universal Interoperability for Grid-Forming Inverters (unifi) Consortium is a U.S. Department of Energy funded effort to advance grid-forming (GFM) inverter technology. We are co-led by the National Laboratory of the Rockies (NLR) , Electric Power Research Institute (EPRI), and University of Texas-Austin.

find us online:

© Copyright Universal Interoperability for Grid-Forming Inverters (UNIFI) Consortium. All rights reserved.

What is UNIFI?

UNIFI is a member-driven organization originally set up through support from the US Department of Energy to integrate power-electronics interfaced generation, storage, and load termed grid-forming technology in power systems around the world.  Think about us as establishing the rules-of-the-road for massively distributed next-generation grid technologies to operate seamlessly.  A Bluetooth for the grid.

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A little more detail about grid-forming technology

Infographic of Inverter Based Resources (IBR's).

Large-scale integration of inverter-based resources (IBRs) with the power grid has sparked several concerns spanning stability, security, and protection. A majority of IBRs interfaced with the grid today are of the grid-following (GFL) type, wherein, the inverter synchronizes to (and follows) a stiff grid. A growing body of work has recognized that power grids with dominantly GFL inverters can face small-signal stability issues. As a solution, consensus is forming towards the adoption of GFM IBRs In this paradigm, IBRs do not follow the grid; rather, they form it and offer better control across timescales.

Collage of the members of the UNIFI Consortium.
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