Organization and Description of Business	3 Months Ended
Mar. 31, 2026
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Organization and Description of Business	Organization and Description of Business Description of Business Nuvve Holding Corp., a Delaware corporation headquartered in San Diego, California (the “Company” or “Nuvve”), was founded on November 10, 2020 under the laws of the state of Delaware. On March 19, 2021, the Company (at the time known as NB Merger Corp.) acquired the outstanding shares of Nuvve Corporation (“Nuvve Corp.”), and the Company changed its name to Nuvve Holding Corp. Reverse Stock Split At the Company’s Special Meeting of Stockholders held on October 6, 2025, the Company’s stockholders approved a proposal to authorize a reverse stock split of the Company’s common stock, at a ratio within the range of 1-for-2 to 1-for-40. The Board approved a 1-for-40 reverse split ratio, and on December 11, 2025, the Company filed a Certificate of Amendment to the Amended and Restated Certificate of Incorporation of the Company with the Secretary of State of the State of Delaware to effect the reverse split effective December 15, 2025 (the “December 2025 Reverse Stock Split”). The December 2025 Reverse Stock Split is already reflected in the year ended December 31, 2025 consolidated financial statement balances. Additionally, at the Company’s Special Meeting of Stockholders held on June 23, 2026, the Company’s stockholders approved a proposal to authorize a reverse stock split of the Company’s common stock, at a ratio within the range of 1-for-2 to 1-for-40. The Board approved a 1-for-18 reverse split ratio, and on June 24, 2026, the Company filed a Certificate of Amendment to the Amended and Restated Certificate of Incorporation of the Company with the Secretary of State of the State of Delaware to effect the reverse split effective July 6, 2026 (the “July 2026 Reverse Stock Split” and together with the December 2025 Reverse Stock Split, the “Reverse Stock Splits”). The Reverse Stock Splits were applicable to the Company’s outstanding warrants, stock options and restricted stock units. The number of shares of common stock into which these outstanding securities are convertible or exercisable were adjusted proportionately as a result of the Reverse Stock Split. The exercise prices of any outstanding warrants or stock options were also proportionately adjusted in accordance with the terms of those securities and the Company’s equity incentive plans. The Reverse Stock Split did not affect the number of authorized shares of the Company's common stock or the par value of the common stock. All issued and outstanding common stock, options to purchase common stock, warrants to purchase common stock and per share amounts contained in the condensed consolidated financial statement have been retroactively adjusted to reflect Reverse Stock Split for all periods presented. Structure of the Company Nuvve has three wholly owned subsidiaries, Nuvve Corp., Nuvve CPO Inc., and Hype Strategy LLC. Additionally, Nuvve has a 49% ownership interest in AggregationV2G LLC, a Delaware limited liability company, which has a controlling interest in Nuvve Japan KK (“Nuvve Japan”), and 51% ownership interest in CamerEye, LLC ("CamerEye"). Nuvve Corp. has four wholly owned subsidiaries or branches: (1) Nuvve Denmark ApS, (“Nuvve Denmark”), a company registered in Denmark, (2) Nuvve SaS, a company registered in France as a branch of Nuvve Corp, (3) Nuvve KK, a company registered in Japan, and (4) Nuvve LTD, a company registered in United Kingdom. Nuvve CPO Inc., or Nuvve Charge Point Operator, was established in August 2024 to support the deployment and ongoing support of the Company's customers charging station networks. Deep Impact On August 16, 2024, the Company, Nuvve CPO, and WISE EV-LLC (“WISE”), entered into the definitive agreements to form Deep Impact 1 LLC, a Delaware limited liability company (“Deep Impact”) in which the Company holds a 51% equity interest by way of Nuvve CPO, and in which WISE holds a 49% equity interest. Deep Impact is an entity formed for the principal purpose of operation, installation, maintenance of electric vehicle chargers and other related activities and services created as a business venture between the Company, Nuvve CPO and Wise. In connection with Deep Impact, Nuvve CPO, WISE and Deep Impact entered into a Contribution and Unit Purchase Agreement (the “Contribution Agreement”), pursuant to which Nuvve CPO and WISE agreed to contribute $51 and $49, respectively to Deep Impact, and to provide certain services pursuant to separate services agreements to Deep Impact. For such contributions and the services, Nuvve CPO received 51 membership units in Deep Impact, equal to a 51% equity interest, and WISE received 49 membership units in Deep Impact, equal to a 49% equity interest. Please see Note 2 for the principles of consolidation. Deep Impact had limited business operations during the three months ended March 31, 2026 and year ended December 31, 2025. Fermata Energy II LLC On April 25, 2025, the Company, Fermata Energy LLC (“Seller”), and the former noteholders of the Seller (the “Preferred Members”), entered into a series of definitive agreements to effect the acquisition of substantially all of the Seller’s assets by Fermata Energy II, LLC, a Delaware limited liability company (“Fermata”). As a result of the transaction, the Company holds a 51% equity interest in Fermata as the sole common units member, and the Preferred Members collectively hold the remaining 49% equity interest in the form of Fermata's entity class A preferred units. The Fermata's entity class A preferred unit holders are entitled to a compounded 10.0% annual preferred return in Fermata entity. Fermata is an entity formed for the principal purpose of developing and commercializing energy management and bidirectional charging technology solutions. Nuvve New Mexico LLC In April 2025, the Company formed Nuvve New Mexico LLC, a new subsidiary created to support the Company’s recently awarded State of New Mexico contract. The new entity serves as a regional representative company, ensuring the successful execution of the contract and the expansion of the Company's innovative energy solutions across the state. The Company holds majority membership interest in Nuvve New Mexico LLC as the Class A units holder. Other members admitted into the Nuvve New Mexico LLC through subscription as investors hold the Class B units of Nuvve New Mexico, and are entitled to a cumulative 18.0% annual preferred return on unreturned capital contribution. As of March 31, 2026, three members have been admitted as a Class B unit members with an aggregate subscription of 300,000 Class B units at $1.00 per unit.

Nuvve Holding Corp., a Delaware corporation headquartered in San Diego, California (the “Company” or “Nuvve”), was founded on November 10, 2020 under the laws of the state of Delaware. On March 19, 2021, the Company (at the time known as NB Merger Corp.) acquired the outstanding shares of Nuvve Corporation (“Nuvve Corp.”), and the Company changed its name to Nuvve Holding Corp.

At the Company’s Special Meeting of Stockholders held on October 6, 2025, the Company’s stockholders approved a proposal to authorize a reverse stock split of the Company’s common stock, at a ratio within the range of 1-for-2 to 1-for-40. The Board approved a 1-for-40 reverse split ratio, and on December 11, 2025, the Company filed a Certificate of Amendment to the Amended and Restated Certificate of Incorporation of the Company with the Secretary of State of the State of Delaware to effect the reverse split effective December 15, 2025 (the “December 2025 Reverse Stock Split”). The December 2025 Reverse Stock Split is already reflected in the year ended December 31, 2025 consolidated financial statement balances.

Additionally, at the Company’s Special Meeting of Stockholders held on June 23, 2026, the Company’s stockholders approved a proposal to authorize a reverse stock split of the Company’s common stock, at a ratio within the range of 1-for-2 to 1-for-40. The Board approved a 1-for-18 reverse split ratio, and on June 24, 2026, the Company filed a Certificate of Amendment to the Amended and Restated Certificate of Incorporation of the Company with the Secretary of State of the State of Delaware to effect the reverse split effective July 6, 2026 (the “July 2026 Reverse Stock Split” and together with the December 2025 Reverse Stock Split, the “Reverse Stock Splits”).

The Reverse Stock Splits were applicable to the Company’s outstanding warrants, stock options and restricted stock units. The number of shares of common stock into which these outstanding securities are convertible or exercisable were adjusted proportionately as a result of the Reverse Stock Split. The exercise prices of any outstanding warrants or stock options were also proportionately adjusted in accordance with the terms of those securities and the Company’s equity incentive plans. The Reverse Stock Split did not affect the number of authorized shares of the Company's common stock or the par value of the common stock. All issued and outstanding common stock, options to purchase common stock, warrants to purchase common stock and per share amounts contained in the condensed consolidated financial statement have been retroactively adjusted to reflect Reverse Stock Split for all periods presented.

Nuvve has three wholly owned subsidiaries, Nuvve Corp., Nuvve CPO Inc., and Hype Strategy LLC. Additionally, Nuvve has a 49% ownership interest in AggregationV2G LLC, a Delaware limited liability company, which has a controlling interest in Nuvve Japan KK (“Nuvve Japan”), and 51% ownership interest in CamerEye, LLC ("CamerEye"). Nuvve Corp. has four wholly owned subsidiaries or branches: (1) Nuvve Denmark ApS, (“Nuvve Denmark”), a company registered in Denmark, (2) Nuvve SaS, a company registered in France as a branch of Nuvve Corp, (3) Nuvve KK, a company registered in Japan, and (4) Nuvve LTD, a company registered in United Kingdom. Nuvve CPO Inc., or Nuvve Charge Point Operator, was established in August 2024 to support the deployment and ongoing support of the Company's customers charging station networks.

On August 16, 2024, the Company, Nuvve CPO, and WISE EV-LLC (“WISE”), entered into the definitive agreements to form Deep Impact 1 LLC, a Delaware limited liability company (“Deep Impact”) in which the Company holds a 51% equity interest by way of Nuvve CPO, and in which WISE holds a 49% equity interest. Deep Impact is an entity formed for the principal purpose of operation, installation, maintenance of electric vehicle chargers and other related activities and services created as a business venture between the Company, Nuvve CPO and Wise.

In connection with Deep Impact, Nuvve CPO, WISE and Deep Impact entered into a Contribution and Unit Purchase Agreement (the “Contribution Agreement”), pursuant to which Nuvve CPO and WISE agreed to contribute $51 and $49, respectively to Deep Impact, and to provide certain services pursuant to separate services agreements to Deep Impact. For such contributions and the services, Nuvve CPO received 51 membership units in Deep Impact, equal to a 51% equity interest, and WISE received 49 membership units in Deep Impact, equal to a 49% equity interest. Please see Note 2 for the principles of consolidation. Deep Impact had limited business operations during the three months ended March 31, 2026 and year ended December 31, 2025.

On April 25, 2025, the Company, Fermata Energy LLC (“Seller”), and the former noteholders of the Seller (the “Preferred Members”), entered into a series of definitive agreements to effect the acquisition of substantially all of the Seller’s assets by Fermata Energy II, LLC, a Delaware limited liability company (“Fermata”). As a result of the transaction, the Company holds a 51% equity interest in Fermata as the sole common units member, and the Preferred Members collectively hold the remaining 49% equity interest in the form of Fermata's entity class A preferred units. The Fermata's entity class A preferred unit holders are entitled to a compounded 10.0% annual preferred return in Fermata entity. Fermata is an entity formed for the principal purpose of developing and commercializing energy management and bidirectional charging technology solutions.

In April 2025, the Company formed Nuvve New Mexico LLC, a new subsidiary created to support the Company’s recently awarded State of New Mexico contract. The new entity serves as a regional representative company, ensuring the successful execution of the contract and the expansion of the Company's innovative energy solutions across the state. The Company holds majority membership interest in Nuvve New Mexico LLC as the Class A units holder. Other members admitted into the Nuvve New Mexico LLC through subscription as investors hold the Class B units of Nuvve New Mexico, and are entitled to a cumulative 18.0% annual preferred return on unreturned capital contribution. As of March 31, 2026, three members have been admitted as a Class B unit members with an aggregate subscription of 300,000 Class B units at $1.00 per unit.