Audit Information	12 Months Ended
Dec. 31, 2025
Auditor [Line Items]
Auditor Firm ID	100
Auditor Name	WithumSmith+Brown, PC
Auditor Location	New York, New York
Auditor Opinion [Text Block]	Opinion on the Financial Statements We have audited the accompanying balance sheets of Alussa Energy Acquisition Corp. II (the “Company”) as of December 31, 2025 and 2024, and the related statements of operations, changes in shareholders’ deficit and cash flows for the year ended December 31, 2025 and for the period from August 16, 2024 (inception) through December 31, 2024, and the related notes (collectively referred to as the “financial statements”). In our opinion, the financial statements present fairly, in all material respects, the financial position of the Company as of December 31, 2025 and 2024, and the results of its operations and its cash flows for the year ended December 31, 2025 and for the period from August 16, 2024 (inception) through December 31, 2024, in conformity with accounting principles generally accepted in the United States of America.

WithumSmith+Brown, PC

Opinion on the Financial Statements

We have audited the accompanying balance sheets of Alussa Energy Acquisition Corp. II (the “Company”) as of December 31, 2025 and 2024, and the related statements of operations, changes in shareholders’ deficit and cash flows for the year ended December 31, 2025 and for the period from August 16, 2024 (inception) through December 31, 2024, and the related notes (collectively referred to as the “financial statements”). In our opinion, the financial statements present fairly, in all material respects, the financial position of the Company as of December 31, 2025 and 2024, and the results of its operations and its cash flows for the year ended December 31, 2025 and for the period from August 16, 2024 (inception) through December 31, 2024, in conformity with accounting principles generally accepted in the United States of America.