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v3.26.1

Nature of Operations (Details) $ in Thousands | 12 Months Ended |  |  |  |  |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Dec. 31, 2025 USD ($) site | Dec. 31, 2024 USD ($) | Sep. 12, 2025 USD ($) | Jul. 22, 2025 MW | Jul. 22, 2024 MW | Jun. 30, 2024 MW | Dec. 31, 2023 | Jun. 02, 2023 | Jan. 01, 2023 | Dec. 31, 2021 MW
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] |  |  |  |  |  |  |  |  |  |
Number of operating sites | site | 4 |  |  |  |  |  |  |  |  |
Net (loss) income | $ (56,991) | $ (58,300) |  |  |  |  |  |  |  |
Net cash for operating activities | (9,149) | (5,069) |  |  |  |  |  |  |  |
Total debt outstanding | 26,757 | 21,505 |  |  |  |  |  |  |  |
Termination liability | 19,300 | 20,000 |  |  |  |  |  |  |  |
Net proceeds from financing activities | 119,392 | 18,318 |  |  |  |  |  |  |  |
Cash on hand | 76,423 | $ 7,843 |  |  |  |  |  |  |  |
Line of credit facility, maximum borrowing capacity | 100,000 |  |  |  |  |  |  |  |  |
2026 SEPA Shares |  |  |  |  |  |  |  |  |  |
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] |  |  |  |  |  |  |  |  |  |
Authorized share repurchase | 18,800 |  |  |  |  |  |  |  |  |
Kentucky |  |  |  |  |  |  |  |  |  |
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] |  |  |  |  |  |  |  |  |  |
Operating site power generation (in MW) | MW |  |  |  |  |  | 50 |  |  |  | 25
Texas |  |  |  |  |  |  |  |  |  |
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] |  |  |  |  |  |  |  |  |  |
Operating site power generation (in MW) | MW |  |  |  | 35 | 48 |  |  |  |  | 100
Generate Credit Agreement |  |  |  |  |  |  |  |  |  |
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] |  |  |  |  |  |  |  |  |  |
Total debt outstanding | 17,000 |  |  |  |  |  |  |  |  |
Tranche A-1 | Generate Credit Agreement |  |  |  |  |  |  |  |  |  |
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] |  |  |  |  |  |  |  |  |  |
Total debt outstanding | $ 5,500 |  |  |  |  |  |  |  |  |
Tranche A-3 | Generate Credit Agreement |  |  |  |  |  |  |  |  |  |
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] |  |  |  |  |  |  |  |  |  |
Total debt outstanding |  |  | $ 11,500 |  |  |  |  |  |  |
DVSL ComputeCo, LLC |  |  |  |  |  |  |  |  |  |
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] |  |  |  |  |  |  |  |  |  |
Equity interest ownership percentage | 15.00% |  |  |  |  |  |  |  |  |
Debt instrument percentage |  |  |  |  |  |  | 67.80% |  | 14.60% |
Soluna DV Compute Co LLC |  |  |  |  |  |  |  |  |  |
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] |  |  |  |  |  |  |  |  |  |
Equity interest ownership percentage | 51.00% |  |  |  |  |  |  | 51.00% |  |
Soluna Digital Inc |  |  |  |  |  |  |  |  |  |
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] |  |  |  |  |  |  |  |  |  |
Equity interest ownership percentage | 0.00% |  |  |  |  |  |  |  |  |
Soluna Digital Inc | Investor Class B Membership Interests |  |  |  |  |  |  |  |  |  |
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] |  |  |  |  |  |  |  |  |  |
Equity interest ownership percentage | 0.00% |  |  |  |  |  |  |  |  |
Soluna Digital Inc | Class A Membership Interests |  |  |  |  |  |  |  |  |  |
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] |  |  |  |  |  |  |  |  |  |
Equity interest ownership percentage | 100.00% |  |  |  |  |  |  |  |  |
KKSL JVCo | Investor Class B Membership Interests |  |  |  |  |  |  |  |  |  |
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] |  |  |  |  |  |  |  |  |  |
Debt instrument percentage | 20.00% |  |  |  |  |  |  |  |  |
KKSL JVCo | Soluna Digital Inc | Investor Class B Membership Interests |  |  |  |  |  |  |  |  |  |
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] |  |  |  |  |  |  |  |  |  |
Debt instrument percentage | 100.00% |  |  |  |  |  |  |  |  |
Soluna Holdings, Inc |  |  |  |  |  |  |  |  |  |
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] |  |  |  |  |  |  |  |  |  |
Equity interest ownership percentage | 100.00% |  |  |  |  |  |  |  |  |

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