FEOC and the Future of BESS Procurement

In this Energy Storage News webinar, Intertek CEA experts Paul Wormser and Dan Finn-Foley examine how FEOC requirements are reshaping ESS procurement in the United States.

As battery energy storage system (BESS) deployment accelerates across the United States, developers are facing a new procurement reality: FEOC restrictions introduced under the One Big Beautiful Bill Act (OBBBA) have made supply chain due diligence central to securing – and protecting – the Investment Tax Credit (ITC).

For BESS developers, the stakes are significant. Unlike solar and wind, where tax credits are being phased down more aggressively, storage remains highly dependent on the ITC. At the same time, the battery supply chain remains heavily concentrated in China across raw materials, processing, and cell manufacturing — creating growing complexity around sourcing strategies and compliance documentation.

As developers work to secure compliant supply, they must navigate evolving guidance, increased scrutiny around ownership and effective control, and uncertainty around what evidence will ultimately be required to support FEOC compliance.

This webinar examines how FEOC requirements are reshaping the U.S. BESS market from both a policy and practical implementation perspective. Intertek CEA experts Paul Wormser and Dan Finn-Foley break down the latest developments surrounding FEOC restrictions and Material Assistance Cost Ratio (MACR) thresholds, as well as key areas where uncertainty remains around topics such as effective control, intellectual property, and grandfathering provisions.

Beyond policy, the session also focuses heavily on the practical realities developers and buyers are now facing in the market. Attendees will gain insight into how Intertek CEA is assessing battery suppliers in practice, what documentation and evidence can support compliance efforts, and how to navigate emerging supplier transparency and due diligence challenges.

Speakers:

  • Paul Wormser, Senior Vice President, Technology

  • Dan Finn-Foley, Director of Energy Storage, Market Intelligence

Energy Storage News Webinar Content:

  • The latest FEOC and OBBBA developments impacting BESS projects

  • How MACR requirements affect 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


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