Bluefield Energy Opens Fukuoka Office

Bluefield Energy Inc. (Headquarters: Minato-ku, Tokyo; Representative Director: Takafumi Shimada), which innovates structural inefficiencies in distributed energy generation and retail electricity with technology, has opened a Fukuoka office in Fukuoka City, Fukuoka Prefecture on April 1, 2026. This is aimed at strengthening its business foundation in the Kyushu area and improving the value provided to customers and partners.

### Background to the Opening of the Fukuoka Office As the introduction of renewable energy progresses nationwide, with the increase in distributed power sources, how to utilize and stably operate the generated electricity has become a crucial theme. In this context, as the status of renewable energy introduction and energy usage varies by region, it is important to consider power generation, storage, and operation methods in accordance with regional characteristics.

According to the Agency for Natural Resources and Energy, the outlook for curtailment (※1) in the Kyushu area for FY2026 is 6.9%, which is projected to be the highest nationwide. Approximately 1.22 billion kWh of generated power is expected to be subject to curtailment, which is anticipated to significantly impact power plant owners' electricity sales revenue and business plans (※2).

Based on these circumstances, to further deepen collaboration with local customers, partner companies, and local governments, and to streamline information gathering and communication in the Kyushu area, Bluefield Energy decided to open the Fukuoka office to enhance business promotion capabilities.

※1 Curtailment: An operation that temporarily reduces or stops power output from generators when renewable energy generation exceeds grid capacity. This directly affects power plant owners' revenue as they cannot sell generated electricity. ※2 Source: "Short-term Outlook for Renewable Energy Curtailment, etc." (Agency for Natural Resources and Energy, December 14, 2025) https://www.meti.go.jp/shingikai/enecho/denryoku_gas/saisei_kano/smart_power_grid_wg/pdf/006_01_00.pdf

### Role of the Fukuoka Office The Fukuoka office will primarily fulfill the following roles: - Information gathering and streamlining communication related to business activities in the Kyushu area - A contact point for deepening collaboration with local companies, local governments, and partners - Consideration of business themes and possibilities taking into account regional characteristics - Provision of a working environment for employees residing in the Kyushu area

### Fukuoka Office Overview Name: Bluefield Energy Inc. Fukuoka Office Opening Date: April 1, 2026 Location: Zero-Ten Park, Tenjin Nishi-dori Store, City 18 Tenjin Building, 2-7-27 Daimyo, Chuo-ku, Fukuoka City, Fukuoka Prefecture Main Activities: Information gathering to support business activities in the Kyushu area, communication with stakeholders, partner collaboration, etc. Service Area: All of Kyushu, centered in Fukuoka Prefecture

### Company Profile Company Name: Bluefield Energy Inc. Representative: Takafumi Shimada, Representative Director Location: 9F Shimbashi MCV Building, 5-13-5 Shimbashi, Minato-ku, Tokyo Business Activities: - Power aggregation business (solar power, storage batteries, co-located) - Development and provision of billing management system "BF Cloud" - Development and operation agency for renewable energy power plants and storage facilities URL: https://bluefieldenergy.co.jp/