The Buyer's Problem
Four US facilities are quoting domestic BESS cell delivery for 2027–2028. None has publicly demonstrated shipped product, customer acceptance, or compliance documentation that would support a bankable offtake. Ford Energy quotes 20 GWh/year of LFP containerized systems from Glendale, Kentucky starting late 2027, with an EDF offtake already signed. No trial production at Glendale has been disclosed. Ford's CATL technology license adds an unresolved PFE question the company addresses only as an "expectation" of compliance. StarPlus Energy has the clearest operational milestone here: NCA ESS production confirmed October 2025 via Samsung SDI financials. Its LFP conversion targets Q4 2026 per company guidance, unconfirmed as achieved. LGES Lansing has a $4.3B Tesla supply agreement and equipment on order for LFP prismatic cells, targeting H2 2027. No cell output. Panasonic Kansas is operational for EV 2170 cells but describes its data-center conversion as in "beginning stages of planning," targeting mid-to-late 2028 at earliest, with no chemistry or format disclosed.
Across all four: no UL 9540A fire test results filed publicly, no facility-level 45X credit claims disclosed, no MACR/PFE filings visible, no warranty terms available. Supply agreements exist. Proof files do not. The features in this issue assess each facility individually; this is the gap they start from.
Ford Energy Glendale — Retooling Signals Are Real, Production Proof Is Not
Ford's Glendale site has a Korea Exchange-disclosed AGV equipment order, 15 active job postings referencing LFP BESS by name, and a framework agreement with EDF covering up to 20 GWh over five years. It also has a DOE project page still describing EV batteries for a JV entity that no longer exists, no cell-line equipment confirmation from any major supplier, and zero public 45X, MACR, or PFE disclosure. The retooling is traceable. The production is not. Anyone placing 20 GWh of domestic BESS cell supply from this facility into a 2027–2028 model should know precisely which evidence layers exist and which are absent.
Ford Energy Glendale — Retooling Signals Are Real, Production Proof Is Not
Ford's Glendale site has a Korea Exchange-disclosed AGV equipment order, 15 active job postings referencing LFP BESS by name, and a framework agreement with EDF covering up to 20 GWh over five years. It also has a DOE project page still describing EV batteries for a JV entity that no longer exists, no cell-line equipment confirmation from any major supplier, and zero public 45X, MACR, or PFE disclosure. The retooling is traceable. The production is not. Anyone placing 20 GWh of domestic BESS cell supply from this facility into a 2027–2028 model should know precisely which evidence layers exist and which are absent.
US BESS Conversion Registry: Seven Rungs, Five Facilities, One Operating Line
One converted NCA ESS line at one facility, trade-reported at approximately 7 GWh. No BESS cells publicly evidenced as shipped to any buyer, anywhere in the domestic pipeline. This registry maps five US battery plants carrying BESS conversion language against seven proof rungs for contractable output. The $4.3 billion Tesla-LGES deal at Lansing, the strongest customer agreement in the set, has no disclosed cathode source. SK Commerce is still "pursuing" customers five months after a WARN filing. Input sourcing is the systematic gap. Where cathode supply is unresolved, stated timelines are aspirational until demonstrated otherwise.
US BESS Conversion Registry: Seven Rungs, Five Facilities, One Operating Line
One converted NCA ESS line at one facility, trade-reported at approximately 7 GWh. No BESS cells publicly evidenced as shipped to any buyer, anywhere in the domestic pipeline. This registry maps five US battery plants carrying BESS conversion language against seven proof rungs for contractable output. The $4.3 billion Tesla-LGES deal at Lansing, the strongest customer agreement in the set, has no disclosed cathode source. SK Commerce is still "pursuing" customers five months after a WARN filing. Input sourcing is the systematic gap. Where cathode supply is unresolved, stated timelines are aspirational until demonstrated otherwise.
Three Layers, Zero Public Proof: The Documentation Void Behind Converted BESS Compliance Claims
Converted U.S. battery facilities are selling BESS output as domestic, compliant, and credit-eligible. Those claims must clear three independent regulatory layers: 45X manufacturing credits, MACR/PFE substantiation under IRS Notice 2026-15, and FEOC restrictions. As of July 24, 2026, no converted facility has publicly demonstrated clearance through all three. The documentation architecture exists on paper. The proof trail visible to anyone outside the IRS is empty across every layer simultaneously. What follows is a layer-by-layer audit of what each requires, what can be verified, and where verification stops.
Three Layers, Zero Public Proof: The Documentation Void Behind Converted BESS Compliance Claims
Converted U.S. battery facilities are selling BESS output as domestic, compliant, and credit-eligible. Those claims must clear three independent regulatory layers: 45X manufacturing credits, MACR/PFE substantiation under IRS Notice 2026-15, and FEOC restrictions. As of July 24, 2026, no converted facility has publicly demonstrated clearance through all three. The documentation architecture exists on paper. The proof trail visible to anyone outside the IRS is empty across every layer simultaneously. What follows is a layer-by-layer audit of what each requires, what can be verified, and where verification stops.
Source Documents
