This webinar examined how FEOC requirements were reshaping the US BESS market from both a policy and practical implementation perspective. Experts from Intertek CEA broke down the latest developments surrounding FEOC restrictions and Material Assistance Cost Ratio (MACR) thresholds, as well as key areas where uncertainty remained around topics such as effective control, intellectual property, and grandfathering provisions.

Beyond policy, the session also focused heavily on the practical realities developers and buyers were facing in the market. Attendees gained insight into how Intertek CEA was assessing battery suppliers in practice, what documentation and evidence could support compliance efforts, and how to navigate emerging supplier transparency and due diligence challenges.

Key discussion topics included:

• The latest FEOC and OBBBA developments impacting BESS projects

• How MACR requirements affected battery sourcing strategies

• Ownership and effective control considerations in supplier evaluations

• Common documentation gaps and supplier transparency challenges

• Practical approaches for assessing supplier compliance claims

• Key supplier due diligence considerations for developers and buyers

Speakers:

Daniel Finn-Foley, director of energy storage market intelligence, Intertek CEA

Paul Wormser, senior vice-president, technology, Intertek CEA.

Moderator:

Andy Colthorpe, editor, Energy-Storage.news

See the webinar on YouTube below. You can also register to watch the webinar and get access to presentation slides from the on-demand section of our website, where you can also find all our other great Energy-Storage.news webinars.

You can also watch our related webinar from a year ago, ‘US budget bill implications for energy storage markets & manufacturing‘ from July 2025, when Daniel Finn-Foley and Intertek CEA senior policy analyst Christian Roselund gave their takes on what was then an emerging topic.