Subsequent Events	6 Months Ended
Jun. 30, 2026
Subsequent Events
Subsequent Events	20. Subsequent Events Stream Sale for Limestone As previously disclosed in the Company's Current Report on Form 8-K filed with the SEC on July 13, 2026, the Company and Plug Project Holding Co., LLC ("Holding Company") entered into a Purchase and Sale Agreement and Joint Escrow Instructions, dated as of July 7, 2026 (the "Original Agreement"), with Stream U.S. Data Centers, LLC ("Stream") for the sale of the Company's Graham, Texas project, consisting of land and associated grid interconnection assets (the "Property"). On August 7, 2026, the Company, Holding Company, Plug Power Limestone, LLC ("Limestone" and, together with the Company and Holding Company, "Seller") and Stream entered into an amendment to the Original Agreement (the "First Amendment" and, together with the Original Agreement, the "Agreement"). Among other things, the First Amendment: (i) increased the aggregate deposit held by the title company toward the purchase of the land to $10.0 million, consisting of an incremental $9.5 million deposit in addition to the $0.5 million deposit previously funded under the Original Agreement (together, the "Land Consideration"); (ii) extended the outside date for closing of the sale of the land and remaining interconnection-related assets (the "Closing") to March 31, 2027, subject to extension in limited circumstances; and (iii) provided for a separate closing (the "HV Closing") of the sale to Stream of certain high-voltage electrical infrastructure located on the Property (the "HV Assets") in exchange for $40.0 million of consideration (the "HV Consideration"). The HV Closing occurred on August 7, 2026, at which time the Company received the $40.0 million HV Consideration. The HV Consideration is non-refundable to Stream, subject to Stream's remedies under the Agreement in the event of a breach of Seller's representations and warranties regarding the HV Assets. If the Closing occurs, the HV Consideration will be credited against the total purchase price for the Property; if the Closing does not occur for any reason, the Company will retain the HV Consideration. The sale of the land and remaining interconnection-related assets has not yet closed and remains subject to the satisfaction of customary closing conditions. The $10.0 million aggregate Land Consideration remains held in escrow by the title company pending the Closing and is subject to release in accordance with the terms of the Agreement. Termination of DOE Loan Guarantee On August 4, 2026, the Company received a notification letter from the U.S. Department of Energy (the “DOE”) exercising its right to terminate the Company’s Loan Guarantee Agreement with the DOE because the initial first advance had not occurred by the applicable longstop date. Termination is automatic and self-executing upon lapse of a ten business day notice period specified in the notice, without further action by the DOE. See Part II, Item 5 of this Quarterly Report on Form 10-Q for additional information.

Subsequent Events

6 Months Ended

Jun. 30, 2026

20. Subsequent Events

Stream Sale for Limestone

As previously disclosed in the Company's Current Report on Form 8-K filed with the SEC on July 13, 2026, the Company and Plug Project Holding Co., LLC ("Holding Company") entered into a Purchase and Sale Agreement and Joint Escrow Instructions, dated as of July 7, 2026 (the "Original Agreement"), with Stream U.S. Data Centers, LLC ("Stream") for the sale of the Company's Graham, Texas project, consisting of land and associated grid interconnection assets (the "Property").

On August 7, 2026, the Company, Holding Company, Plug Power Limestone, LLC ("Limestone" and, together with the Company and Holding Company, "Seller") and Stream entered into an amendment to the Original Agreement (the "First Amendment" and, together with the Original Agreement, the "Agreement"). Among other things, the First Amendment: (i) increased the aggregate deposit held by the title company toward the purchase of the land to $10.0 million, consisting of an incremental $9.5 million deposit in addition to the $0.5 million deposit previously funded under the Original Agreement (together, the "Land Consideration"); (ii) extended the outside date for closing of the sale of the land and remaining interconnection-related assets (the "Closing") to March 31, 2027, subject to extension in limited circumstances; and (iii) provided for a separate closing (the "HV Closing") of the sale to Stream of certain high-voltage electrical infrastructure located on the Property (the "HV Assets") in exchange for $40.0 million of consideration (the "HV Consideration").

The HV Closing occurred on August 7, 2026, at which time the Company received the $40.0 million HV Consideration. The HV Consideration is non-refundable to Stream, subject to Stream's remedies under the Agreement in the event of a breach of Seller's representations and warranties regarding the HV Assets. If the Closing occurs, the HV Consideration will be credited against the total purchase price for the Property; if the Closing does not occur for any reason, the Company will retain the HV Consideration.

The sale of the land and remaining interconnection-related assets has not yet closed and remains subject to the satisfaction of customary closing conditions. The $10.0 million aggregate Land Consideration remains held in escrow by the title company pending the Closing and is subject to release in accordance with the terms of the Agreement.

Termination of DOE Loan Guarantee

On August 4, 2026, the Company received a notification letter from the U.S. Department of Energy (the “DOE”) exercising its right to terminate the Company’s Loan Guarantee Agreement with the DOE because the initial first advance had not occurred by the applicable longstop date. Termination is automatic and self-executing upon lapse of a ten business day notice period specified in the notice, without further action by the DOE. See Part II, Item 5 of this Quarterly Report on Form 10-Q for additional information.