Updated October 5, 2026 An 80 GWh backlog now has new equity and factory credit behind it Form Energy's factory-ramp story has changed since this article's August update. On August 12, the company announced a $750 million Series G led by T. Rowe Price and said its backlog had grown from approximately 20 GWh to 80 GWh earlier in the year. On September 21, it announced a $270 million credit facility to support manufacturing scale-up and working capital at Form Factory 1 in Weirton, West Virginia. These are financing and commercial milestones, not evidence that 80 GWh of batteries have been delivered. $750 million August Series G equity financing. $270 million September closed credit facility. About 80 GWh Company-reported backlog in August, not installed capacity. Why the debt structure matters for production The September financing combines a revolving credit facility with a tax-credit advance facility. The latter can advance against credits generated by production of eligible components under Section 45X, the federal Advanced Manufacturing Production Credit. Form says an accordion feature provides for up to billion of total credit under the debt facility. That potential expansion is not another billion already raised, and the announcement does not establish that the full amount has been drawn. Barclays acted as sole structuring bank and initial coordinating lead arranger. Citi, Jefferies, JPMorgan Chase, RBC Capital Markets, Societe Generale, Stifel and Wells Fargo also participated. Latham & Watkins, which represented the lead arrangers, separately confirmed the $270 million financing on September 29. Form said the new credit follows its Series G, which brought total equity raised above $2 billion. For a new battery manufacturer, equity and working-capital credit serve different needs. Factory equipment and process development consume money before sustained customer shipments. Production also ties cash up in materials, work in progress and finished equipment. A facility linked to manufacturing credits can help bridge that cash cycle, but access to financing does not by itself demonstrate throughput, yield or successful commissioning. Crusoe's 2027 deliveries remain the test to watch The original March 24 Crusoe announcement described a strategic capacity agreement for 12 GWh, with deliveries starting in 2027, reserved volume, pricing and delivery terms. It identified Weirton as the manufacturing location for all systems. The new financing releases do not announce completed Crusoe installations or replace that delivery window with a site-by-site commissioning schedule. At the product's stated maximum 100-hour duration, 12 GWh divided by 100 hours equals 120 MW. That is an illustrative energy-to-power conversion, not a disclosed Crusoe project rating or a promise that every installation will use the same configuration. It helps explain why a large GWh headline cannot be compared directly with the MW rating of a data-center campus or a shorter-duration lithium-ion battery. The stronger evidence from here will be accepted equipment shipments, repeatable factory output and operating data from commissioned projects. Buyers will also need project-specific power, usable energy, recharge requirements, warranties and availability terms. Form has raised more capital and reported a larger backlog. Turning that backlog into dependable multi-day capacity remains a manufacturing and field-performance task. Sources: Form Energy, August 12 Series G announcement ; Form Energy, September 21 credit facility ; Latham & Watkins, September 29 confirmation ; Form Energy and Crusoe, March 24 agreement . Accessed October 5, 2026. Form Energy has signed an agreement to supply 12 gigawatt-hours of iron-air batteries to Crusoe, the AI infrastructure company. Announced at CERAWeek in Houston on March 24, the deal is the largest energy storage contract specifically targeting AI data centers to date and pushes Form Energy's total pipeline past 75 GWh. Days later, Michigan's utility regulator approved 1,332 MW of battery storage contracts in a single session, including three projects dedicated to a new data center. Together, the announcements show how quickly data center demand is reshaping the grid storage market. Form Energy manufactures its iron-air battery systems at Form Factory 1 in Weirton, West Virginia, with all Crusoe units to be built domestically. Why AI Data Centers Are Turning to Multi-Day Storage The problem is straightforward: building a hyperscale AI campus capable of running thousands of GPUs requires hundreds of megawatts of reliable power, and grid connections at that scale take years to permit and construct. The U.S. government has acknowledged the bottleneck by encouraging "bring your own capacity" (BYOC) models, where data center developers provide their own power supply rather than queuing for a utility tie-in. Crusoe, which operates AI compute facilities with a focus on speed-to-power, has embraced that approach directly. The company's co-founder and CSO Cully Cavness stated at CERAWeek: "The future of AI depends on access to abundant, reliable power delivered at speed. Solutions like these batteries can solve those crunch moments to enable more power to be available for the rest of the year." Under the deal, Crusoe secures reserved volume, fixed pricing, and committed delivery schedules starting in 2027. Form Energy's CEO Mateo Jaramillo framed the partnership around domestic manufacturing: "This partnership with Crusoe demonstrates how multi-day energy storage can unlock new capacity for data centers while strengthening domestic manufacturing." All systems will be built at Form Factory 1 in Weirton, West Virginia, which began production in 2026. Crusoe builds AI compute facilities designed to operate independently of grid constraints, using on-site energy generation and storage. How Iron-Air Batteries Work , and Why the Tradeoffs Matter Iron-air batteries are fundamentally different from the lithium-ion systems that dominate grid storage today. During discharge, iron pellets react with oxygen from ambient air to form iron oxide, releasing electrons. During charging, applied current reverses the reaction, reducing iron oxide back to metallic iron. The raw materials , iron, water, and air , are among the most abundant on Earth. The tradeoff is round-trip efficiency. Lithium-ion BESS systems typically achieve 85-92% round-trip efficiency. Iron-air batteries come in considerably lower. Form Energy has been transparent about this since emerging from stealth in 2021, and argues that iron-air is not competing with lithium-ion on the same use cases. For applications where power is needed over 100 hours or more , covering multi-day lulls in renewable output, or backing up a data center through a period of grid unavailability , the lower efficiency matters less than the cost per kilowatt-hour of storage capacity, where iron-air has a claimed advantage of 10x or more over lithium. Iron-air cells use iron pellets as the anode and ambient air as the cathode, with no lithium or cobalt required. A Pipeline That Keeps Growing At the March announcement, the Crusoe deal was Form Energy's third major announced agreement in 2026. Earlier this month, the company disclosed a 30 GWh iron-air battery agreement tied to a Google-Xcel Energy data center project in Minnesota , the largest single energy storage contract ever announced by watt-hour capacity. Weeks before that, Form signed its first international deal: a 1 GWh system for FuturEnergy Ireland. The Crusoe contract adds 12 GWh more, pushing the total disclosed pipeline past 75 GWh at that time. Whether all that pipeline converts to hardware is the real question. Form Energy is still scaling its factory and has acknowledged it needs further cost reductions through its second-generation system design. Crusoe is hedging as well , in parallel with the Form Energy deal, it also struck an arrangement with Redwood Materials for