Operation Started at approx. 2MW / 4MWh Battery Storage Plant in Kaga City, Ishikawa Prefecture

Sherpa Group is pleased to announce that on April 1, 2026, the 'Ishikawa-ken Kaga-shi Bunkyo-cho Battery Storage Plant' (hereafter, 'this facility'), its first large-scale battery storage plant as an investment project, was connected to the grid and began operations in Bunkyo-cho, Kaga City, Ishikawa Prefecture.

In cooperation with the aggregator, Hirasol Energy Inc., this facility has an AC output of 2MW and a DC capacity of 4MWh, and is expected to contribute to the stabilization of the power grid in the Hokuriku Electric Power area.

## Background and Significance
As part of its promotion of sustainable energy and infrastructure investment, Sherpa Group has been aiming for a full-scale entry into the renewable energy sector. This project is positioned as its inaugural case, demonstrating the importance of battery storage technology in Japan's energy transition.

With the large-scale introduction of renewable energy, the variability of the power grid is increasing, making the securing of 'balancing capacity' (*1) a more critical issue than ever. This facility plans to provide balancing capacity through the supply-and-demand balancing market, promoting both the further spread of renewable energy and a stable power grid.

## Overview of This Facility
- Advisor: Sherpa Group Holdings LLC
- Aggregator: Hirasol Energy Inc.
- Design/Construction: Hirasol Densetsu Inc.
- Storage Plant Name: Ishikawa-ken Kaga-shi Bunkyo-cho Battery Storage Plant
- Location: Bunkyo-cho, Kaga City, Ishikawa Prefecture
- Grid Connection Date: April 1, 2026
- Storage Plant Owner: SGB001 LLC

### Battery Overview
- Battery Output: Approx. 2MW
- Battery Capacity: Approx. 4MWh
- Substation Equipment: 1 unit of WIN Corporation's 'BS Series' substation equipment for battery storage systems.

## Features of This Project

### A New Energy Investment Model Merging Investment Expertise and Technical Capabilities
Under Sherpa Group's renewable energy and infrastructure investment strategy, this facility marks the beginning of a new deployment scheme that links the expertise of Sherpa Group's investment funds with the technical capabilities of external aggregators. We will advance future developments starting with this storage plant.

### Advanced Operational Management by Aggregator
Hirasol Energy Inc. will be in charge of the operation and management of this facility, leveraging its extensive experience in optimizing energy assets and participating in the electricity market. Their technical capabilities and market participation know-how will enable optimal control of battery charging and discharging, ensuring stable operation and profitability.

## Future Outlook
Sherpa Group states: 'The completion of this storage plant is an important milestone for Sherpa Group, symbolizing our full-scale entry into the renewable energy and infrastructure field. In Japan's energy transition, battery storage technology plays an indispensable role in stabilizing the power grid and promoting the spread of renewable energy. We intend to continue expanding sustainable energy and infrastructure investments in Japan and the Pan-Asian region.'

Starting with this facility, Sherpa Group aims to expand its investments in renewable energy and infrastructure in Japan and the Pan-Asian region. The policy is to place particular emphasis on battery storage projects that contribute to power grid stabilization and on infrastructure development that contributes to the expanded introduction of renewable energy.

*1 Balancing Capacity: Refers to the adjustment function to match electricity supply and demand in real-time. As the proportion of renewable energy increases, output fluctuations become larger, and it has become important for distributed power sources such as new battery storage to bear the role of balancing capacity. The supply-and-demand balancing market is a new market established to trade this balancing capacity.