NUVVE JAPAN Finalizes First Sale Agreement for 2MW / 8MWh Battery Storage Project in Mino, Gifu for $3.35 million (¥520 Million)

NUVVE JAPAN K.K. ("NUVVE JAPAN"), the Japanese subsidiary of Nuvve Holding Corp. (NASDAQ:NVVE), a global leader in grid modernization and energy storage including vehicle-to-grid (V2G) technology, is pleased to announce that it has entered into a definitive sales agreement for its front-of-the-meter battery energy storage system (BESS) for a project located in Mino City, Gifu Prefecture.

The project features a power output of 2MW and a storage capacity of 8MWh with a contracted sale price of $3.35M (¥520M). The project is anticipated to be operational during the fourth quarter of 2026.

Strategic Background and Financial Impact

NUVVE JAPAN is dedicated to expanding the adoption of renewable energy and enhancing grid stability in Japan by leveraging its proprietary Nuvve GIVe™ platform. The Mino City project is a high-specification facility capable of a four-hour discharge (8MWh), providing significant flexibility for grid adjustment.

Upon completion of the BESS, NUVVE JAPAN will provide the aggregation services and continue to manage the asset through the Supply and Demand Adjustment Market and the Japan Electric Power Exchange (JEPX), providing recurring revenues to the customer and NUVVE JAPAN over the 20-year agreement.

Project Overview

• Location: Mino City, Gifu Prefecture, Japan
• Rated Power: 2MW
• Rated Capacity: 8MWh (4-hour duration)
• Key Technology: High-precision market operation via the proprietary Nuvve GIVe™ platform
• Expected to be fully operational during the fourth quarter of 2026
• Transaction Status: Sale agreement executed for a sales price of $3,350,000 (¥520,000,000) with customer deposit of $928,000 (¥143,910,000) received

Future Outlook

Following the sale, NUVVE JAPAN will remain integral to the project's success through Operations and Maintenance (O&M) and by providing its sophisticated aggregation platform to maximize the asset's market value. NUVVE JAPAN will continue to strengthen its partnerships with local governments and domestic enterprises to lead the energy transition toward Japan's 2030 carbon neutrality goals.

About NUVVE JAPAN K.K.

As the Japanese arm of Nuvve Holding Corp.—the first company to commercialize V2G technology globally—NUVVE JAPAN provides advanced energy management solutions that integrate electric vehicles (EVs) and stationary storage batteries with the power grid.

About Nuvve Holding Corp.

Nuvve powers the future of flexible energy by turning batteries, electric vehicles (EV), buildings, and distributed assets into dynamic grid resources. At the core is Nuvve's advanced platform for intelligent energy management and vehicle-to-grid (V2G), orchestrating real-time bidirectional charging, load optimization, and grid services. By harnessing an ecosystem of electrification partners, fleets, stationary storage, and smart EV chargers, Nuvve helps utilities and communities unlock flexibility at scale — enhancing reliability, accelerating electrification, and lowering costs. Nuvve enables a clean energy future where mobility, buildings, and infrastructure work together to support a more resilient, sustainable, and equitable grid. Headquartered in San Diego, California, Nuvve operates globally and online at nuvve.com.

Forward-Looking Statements

This press release contains forward-looking statements or forward-looking information within the meaning of the U.S. Private Securities Litigation Reform Act of 1995. Forward-looking statements may be identified by the use of forward-looking terms such as "may," "will," "expects," "believes," "aims," "anticipates," "plans," "looking forward to," "estimates," "projects," "assumes," "guides," "targets," "forecasts," "continue," "seeks" or the negatives of such terms or other variations on such terms or comparable terminology, although not all forward-looking statements contain such identifying words. Forward-looking statements include, but are not limited to, statements regarding the expected timing of recently announced projects, anticipated growth of various business areas, and other statements that are not historical facts. Nuvve cautions you that these forward-looking statements are subject to numerous risks and uncertainties, most of which are difficult to predict and many of which are beyond the control of Nuvve. Such statements are based upon the current beliefs and expectations of management and are subject to significant risks and uncertainties that could cause actual outcomes and results to differ materially. Some of these risks and uncertainties can be found in Nuvve's most recent Annual Report on Form 10-K and subsequent periodic reports filed with the Securities and Exchange Commission (SEC). These factors should not be construed as exhaustive and should be read in conjunction with the other cautionary statements that are included in the Nuvve's filings with the SEC. Such forward-looking statements speak only as of the date made, and Nuvve disclaims any intention or obligation to update or revise any forward-looking statements, whether as a result of new information, future events or otherwise. Readers of this press release are cautioned not to place undue reliance on these forward-looking statements, since there can be no assurance that these forward-looking statements will prove to be accurate. This cautionary statement is applicable to all forward-looking statements contained in this press release.

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Media Contact For Nuvve:

Tracy Williams

[email protected]

310.824.9000