The ESS Pivot, Facility by Facility

Five US battery plants claiming EV-to-ESS conversion, mapped against independently observable signals. Last verified: 2026-05-18.

Signals checked per facility where available: WARN Act filings, workforce levels, equipment orders, confirmed offtake contracts, FEOC compliance status, chemistry compatibility, DOE LPO loan status, state incentive clawback triggers, 45X credit claim disclosures.

Status Headers

Facility	Owner	Chemistry	Assessed Status
LGES Holland, MI	LG Energy Solution	LFP pouch (JF2)	Operational — no stated/observed gap
LGES Lansing, MI	LG Energy Solution	LFP prismatic	Credible — binding Tesla contract, SOP H2 2027
Ultium Spring Hill, TN	GM / LGES JV	LFP pouch (JF2)	Plausible with caveats — Q2 2026 target, internal offtake only
SK Commerce, GA	SK Battery America	NCM → partial LFP	Mixed — named offtake predates 37% headcount cut; seven-month silence on conversion
BlueOval SK Kentucky	Ford Motor Company	LFP prismatic	Ambiguous — subsidiary launched, no cell sourcing route disclosed

LGES Holland, MI | ~16.5 GWh nameplate (three retooled lines at 5.5 GWh each; operational output not disclosed) | Stated: Operational ESS cell production. Shipping since mid-2025. Baseline reference for this audit.

LGES Lansing, MI | 2.8M sq ft, wholly owned post-GM stake sale (May 2025) | Stated: $4.3B supply agreement with Tesla for Megapack 3 cells; SOP H2 2027. Named counterparty, binding contract, government confirmation. Equipment orders reported at Tier 3 only.

Ultium Cells Spring Hill, TN | Converting from NCMA to LFP pouch (JF2 format) | Stated: $70M retooling investment, Q2 2026 production target, 700 workers recalled. Assessed: Workforce recall confirmed. Q2 2026 deadline is six weeks out. Offtake is internal (LGES Vertech), not an external customer.

SK Commerce, GA | NCM partially converting to LFP | Stated: "Expanding into the battery energy storage system market"; 7.2 GWh Flatiron contract, H2 2026 LFP start. Assessed: No public update on conversion execution since October 2025, a gap that now spans the March 2026 layoffs and continues through research date. LFP cathode sourcing route for FEOC purposes undisclosed (L&F MOU signed July 2025; not confirmed as supply contract).

BlueOval SK Kentucky (Glendale) | Ford Motor Company (sole owner post-JV dissolution), LFP prismatic under Ford Energy subsidiary | Stated: 20 GWh annual capacity, first deliveries late 2027; FEOC/ITC compliant. Assessed: Subsidiary launched, product specified, first framework agreement signed. No equipment supplier named, no LFP cell sourcing route disclosed, DOE $9.63B loan treatment unresolved, Kentucky employment benchmark will be missed.

The Ledger

LGES Holland

2025-05 (approx.) — Stated: LGES announces first US large-scale LFP battery production at Holland. JF2 LFP pouch cells for ESS applications. Observed: Production started. Tier 2 confirmed. Gap: None.

2026-01-29 — Stated: LGES FY2025 earnings name Holland alongside Lansing as North American ESS production sites; reference LFP pouch production as operational. Observed: Consistent with mid-2025 launch reporting. Holland described as part of a multi-facility ESS network including Spring Hill and Windsor. Gap: None.

2026-05-18 — Searched and not found: No WARN Act filings, workforce reductions, or production disruption reports at Holland in any source reviewed. No negative signals identified. Holland remains the cleanest stated/observed alignment in this set.

LGES Lansing

2025-05 (approx.) — Observed: GM sells its stake in the Lansing facility to LG Energy Solution. LGES assumes full ownership. The stake sale is what made the ESS conversion possible: the plant was originally configured for EV cells under the Ultium JV. No public ESS-specific statement accompanied the transaction at the time.

2026-01-29 — Stated: LGES FY2025 earnings name Lansing as ESS expansion site, reference prismatic format expansion. Observed: Tier 1 disclosure, two months before public contract announcement. Gap: None.

2026-02-25 — Stated: TheElec (via Teslarati) reports equipment orders placed with CIS, Hirano Tecseed, TSI, CK Solution, A-Pro, Shinjin Mtech. All Korean/Japanese vendors, consistent with FEOC posture. Observed: Entire supplier list traces to a single Tier 3 source chain. No Tier 1 or Tier 2 corroboration found. No Wuxi Lead, Manz, or Schuler references found in any Lansing-context source. Gap: Equipment orders reported but not independently confirmed. Absence of Chinese equipment vendors is notable for FEOC purposes but does not validate the alternative list.

2026-03-17 — Stated: LGES confirms $4.3B Tesla supply agreement (5.94 trillion won, August 2027–July 2030). US Department of the Interior confirms Tesla as buyer: cells for Megapack 3 produced in Houston. Observed: Named counterparty, named end product, government confirmation. Binding supply agreement, not MOU. Gap: None.

2026-05-18 — Searched and not found: DOE LPO loan or conditional commitment for Lansing post-GM stake sale. Local construction permit activity in trade press. Tier 1/Tier 2 reporting on equipment arrival or construction progress.

Ultium Cells Spring Hill

2025-07-15 — Stated: GM and LG announce Spring Hill will convert from NCMA to LFP. Commercial production targeted for late 2027. Observed: Tier 2 confirmed. Original timeline: ~30 months from announcement to production.

2026-01 (approx.) — Stated: No public statement accompanied the action. Observed: 700 workers laid off. Tennessee WARN Act filing confirmed. Gap: Layoff not framed as retooling-related at the time.

2026-03-17 — Stated: Ultium announces $70M retooling, LFP ESS production target Q2 2026, 700 workers recalled for retraining. Cells to supply LGES Vertech for grid and data center ESS. JF2 LFP pouch format, same as Holland. Observed: Workforce recall confirmed at announcement date by local news. Timeline accelerated from late 2027 to Q2 2026. Gap: Offtake is internal (Ultium → LGES Vertech → unnamed end customers). No equipment supplier disclosed for the $70M retooling. Publication inference: the acceleration from ~30 months to ~14 weeks suggests the LFP ESS conversion requires substantially less retooling than the original NCMA-to-LFP EV conversion would have, likely because the JF2 pouch format leverages existing line architecture.

2026-05-18 — Observed: Q2 2026 ends June 30. No confirmation of first LFP cell production found. Target has not been publicly pushed back. Gap: Ambiguous. Six weeks remain in the stated window.

SK Commerce

2025-09-05 — Stated: SK On announces 7.2 GWh BESS supply contract with Flatiron Energy Development (~$1.5B, through 2030). First 1 GWh LFP shipment H2 2026 for Massachusetts project. Commerce NCM lines to be partially converted to LFP. Observed: Named counterparty, named project, named chemistry. Tier 1 confirmed. LFP cathode supply: SK On signed MOU with L&F in July 2025 for LFP cathode materials. MOU only, not a supply contract. FEOC implications of the LFP sourcing route for Flatiron's ITC eligibility are not publicly addressed. Gap: None on the demand side at this entry. Cathode supply route unresolved.

2026-03-06 — Stated: No ESS-specific framing accompanied the action. Observed: SK Battery America files WARN Act notice: 958 workers terminated, headcount from ~2,566 to ~1,600. Gap: 37% workforce reduction occurred six months after Flatiron contract signing. Company has not publicly addressed whether the reduction affects H2 2026 LFP conversion timeline or required technical staffing.

2026-05-18 — Searched and not found: Post-layoff company disclosure on LFP retooling status or timeline. Job postings at Commerce for LFP process roles (not directly confirmed via careers page review; absence of evidence, not evidence of absence). Equipment retooling announcements with named suppliers. Georgia state records or Jackson County actions regarding ~$300M in incentives. Georgia clawback trigger conditions are not publicly documented in sources reviewed, unlike Kentucky's explicit benchmark structure. Gap: The Flatiron contract provides demand. The silence since October 2025 on conversion execution is the gap.

Ford Energy / BlueOval SK Kentucky

2024-12-16 — Observed: DOE closes $9.63B direct loan to BlueOval SK LLC for up to three battery plants. Closed loan, not conditional commitment.

2025-12-16 — Stated: Ford and SK On announce JV dissolution. Ford takes sole ownership of Kentucky Plant 1. Intent to repurpose for energy storage. Observed: ~1,600 workers laid off. Plant 2 construction never completed; Ford working with Kentucky to find a buyer. No buyer publicly identified as of 2026-05-18. Gap: "Repurpose for energy storage" announced simultaneously with JV dissolution and mass layoff. No product, customer, or timeline provided at that date.

2026-02-04 — Stated: No Ford public statement on clawback. Observed: Kentucky economic development officials confirm to lawmakers Ford assumes the $250M forgivable loan. First benchmark (2,500 workers by end 2026) will be missed; Ford projects ~2,100 workers in 2027. State in active renegotiation. Gap: ESS pivot requires fewer workers than the original EV commitment. Incentive structure was designed for EV-scale employment.

2026-05-12 — Stated: Ford launches Ford Energy. DC Block: 5.45 MWh containerized BESS, 512 Ah LFP prismatic cells. 20 GWh annual target. ~$2B investment. First deliveries late 2027. Claims ITC/FEOC alignment. Observed: Detailed product spec, no equipment supplier, no LFP cell sourcing partner, no cathode or precursor supply chain disclosed. Gap: Ford specified the product down to the cell format. The supply chain required to build it remains entirely opaque. A 512 Ah LFP prismatic cell is not a commodity item; the sourcing route determines FEOC compliance, and that route is undisclosed.

2026-05-18 — Stated: Ford Energy announces framework agreement with EDF Power Solutions North America: up to 4 GWh annually starting 2028. Observed: Named counterparty. "Up to" implies ceiling, not floor. Start date trails stated production readiness by approximately one year. Gap: First customer agreement is a positive signal. Volume is conditional and timeline lags the stated SOP.

2026-05-18 — DOE loan status: Tier 3 reporting (CBT News via Utility Dive) indicates DOE would restructure and reduce the $9.63B loan; Ford reportedly cooperating on accelerated repayment. No DOE press release, modified loan filing, or Ford SEC disclosure confirming terms found. Gap: Unresolved. Treatment of a $9.63B closed loan under sole Ford ownership, for a facility converting from EV to ESS, is material. No Tier 1 confirmation exists.

Reading the Ledger

The line between credible pivots and ambiguous ones runs through a specific pair of signals, consistent across this set: a named, contracted offtake counterparty and disclosed capital deployment. Facilities that carry both show observable execution. Facilities missing one or the other have stated timelines with no visible support beneath them.

LGES has both, across multiple facilities. Holland is operational and clean. Lansing carries a $4.3B binding contract with Tesla and Tier 1 earnings confirmation that predated the public announcement by two months. Spring Hill has $70M in disclosed retooling and a recalled workforce against a Q2 2026 deadline with six weeks remaining. The weakest links are Tier 3-only equipment sourcing at Lansing and an unconfirmed production start at Spring Hill. If both resolve by late summer, LGES will have three US ESS facilities producing across two cell formats. Evidence is accumulating faster than it was six months ago.

SK Commerce has the counterparty (Flatiron, 7.2 GWh) but has gone silent on capital deployment since the last verifiable conversion update in October 2025. The Flatiron contract preceded the layoffs by six months, which gives the pivot chronological credibility. Seven months without a retooling update, a 37% headcount reduction, and an unresolved LFP cathode sourcing route leave the H2 2026 target without observable support.

Ford Energy has covered more ground since May 12 than in the preceding five months combined. The subsidiary launch, the product spec, and the EDF framework agreement are real steps. The structural gaps remain the widest in this audit: no cell sourcing route, no equipment supplier, an unresolved $9.63B DOE loan, a missed state employment benchmark, and a stranded second plant with no buyer. If the current pattern holds, the next twelve months produce either supply chain disclosures that close these gaps or a quiet timeline extension that widens them.

Across the five facilities, the stated narratives converge. The observable evidence runs from confirmed production to near-total opacity, and the distribution is getting wider.