What GPSS Engineering Inc. does

GPSS Engineering Inc. (GPSSエンジニアリング株式会社) is a Japanese renewable energy development and engineering company, operating as a wholly-owned subsidiary of GPSS Holdings Inc. (GPSSホールディングス株式会社). The company develops and operates utility-scale and community-based power generation projects across Japan, with a portfolio spanning wind power, small-scale hydropower, and community-driven renewable initiatives such as the Matsunoyama Onsen Community Power Project in Niigata Prefecture and the Sugawara River Small Hydro Power Plant in Gunma Prefecture. As of April 2026, the GPSS Group's development pipeline stood at approximately 1.2 GW, with cumulative power generation of 716,320 MWh since January 2014 and 129,630 MWh generated in FY2025.

The company's underlying technology is conventional renewable power generation — wind turbines, small hydroelectric facilities, and distributed community solar/heat systems — combined with project development expertise in site origination, permitting, and stakeholder engagement. Its June 2026 launch of the East Izu Furusato Wind Power Generation Facility in Shizuoka Prefecture marked the group's first wind power project, signaling a broadening of the technology mix beyond small hydro and community power into utility-scale wind. Project ownership is typically housed in special purpose vehicles (e.g., East Izu Wind Power GK, Oshamambe Green Energy GK, みなかみ上岩渕水力発電合同会社), with GPSS Engineering Inc. providing engineering, development, and operational services.

GPSS generates revenue through electricity sales under Japan's feed-in tariff (FIT) regime and related power purchase agreements, supplemented by engineering, development, and asset management services across its project portfolio. The company's go-to-market emphasizes regional partnerships and co-development with local communities and municipalities, supported by sustainability credentials including B Corporation certification (2025), GRESB 5-star ratings (2020, 2021), CDP climate disclosure participation (2022–2023), and TCFD/TNFD endorsement. The customer base is implicit in regulated Japanese power utilities and corporate FIT off-takers, though no specific customers are publicly disclosed. The company is headquartered in Japan with operations spanning Hokkaido, Niigata, Gunma, Shizuoka, and Iwate prefectures.

Name

GPSS Engineering Inc.

Legal name

GPSS Engineering Inc. (GPSSエンジニアリング株式会社)

Website

https://gpss.jp

Company type

Private

Operating status

Operating

Headcount range

11–50 employees

Short description

GPSS Engineering Inc. is a Japanese renewable energy developer and engineering subsidiary of GPSS Holdings Inc., operating wind, small hydro, and community power projects across Japan. It manages a 1.2 GW development pipeline as of April 2026, serving regional communities and supplying clean electricity under Japan's FIT regime.

Ownership category

akta.pro rank

Product category

Renewable Energy Power Generation

NAICS

Wind Electric Power Generation (221115), Hydroelectric Power Generation (221111), Electric Power Generation (22111)

SIC

Electric Services (4911)

akta.pro primary industry

Wind Farm Ownership & Operations (IPP/Utility-Owned Asset Operations) (EUACAFAF)

akta.pro secondary industries

Wind Farm Development & Permitting (Greenfield/Brownfield) (EUACAFAE), Hydropower Plant Development & Permitting (Greenfield/Brownfield) (EUACAEAE), Renewable Energy Industrial Facilities Construction (Solar, Wind, Storage) (IMAFADAD)

Keywords

• Wind power generation
• Small hydro power
• Renewable energy development
• Community power generation
• Regional revitalization energy

GTM type

B2B

Offering type

Services

Cost components

Infrastructure, Operations, Supply Chain, Personnel, Technology or R&D

Marketing channels3 records

Core offering

GPSS Engineering Inc. develops and operates renewable energy power generation facilities in Japan, including wind power plants, small-scale hydroelectric power plants, and community-based power generation projects. The company has a development pipeline of approximately 1.2GW as of April 2026 and has cumulatively generated 716,320 MWh of electricity since January 2014. Key projects include the East Izu Furusato Wind Power Generation Facility in Shizuoka Prefecture, the Sugawara River Small Hydro Power Plant in Gunma Prefecture, and the Matsunoyama Onsen Community Power Project in Niigata Prefecture.

Product overview

GPSS Group operates renewable energy power generation facilities, primarily in wind power, small-scale hydro power, and community-based power generation. The core offering is the development and operation of sustainable energy infrastructure, with a development pipeline of approximately 1.2GW as of April 2026. The company has cumulative power generation of 716,320 MWh since January 2014, contributing to CO2 reduction of approximately 357,570 t-CO2.

Differentiator

Problem solved

Functional benefit

Products and services

• Wind Power Generation Development and operation of wind power generation facilities as part of GPSS Group's renewable energy portfolio. The first wind project is the East Izu Furusato Wind Power Generation Facility in Shizuoka Prefecture, marking the group's entry into wind energy.
• Small Hydro Power Generation Development and operation of small-scale hydroelectric power generation facilities, such as the Sugawara River Small Hydro Power Plant (須川川小水力発電所) in Minakami Town, Gunma Prefecture. Owned by Minakami Kami-Iwabuchi Hydroelectric Power GK.
• Community Power Generation Community-based power generation initiatives that involve local cooperation and regional economic development, such as the Matsunoyama Onsen Community Power Project (コミュニティ発電 ザ・松之山温泉) in Tokamachi City, Niigata Prefecture. Owned by Matsunoyama Onsen GK / Earth (ジアス).
• Oshamambe Regional Revitalization Power Generation Regional revitalization power generation project in Oshamambe Town, Hokkaido, designed to support local economic development. Owned by Oshamambe Green Energy GK.

Quantifiable outcome

• Cumulative power generation of 716,320 MWh since January 2014, equivalent to approximately 183,155 households' annual electricity consumption
• +1 more outcomes

Segments1 record

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Partnerships

Five partnerships are on record, tiered core and minor.

• LTIIA (Long-Term Infrastructure Investment Association)coreStrategic or Co-development Partner · 1 November 2019GPSS joined LTIIA in November 2019. LTIIA is a non-profit organization established by global leading institutional investors to promote long-term infrastructure investment. GPSS resonates with LTIIA's objectives and continues to promote sustainable society construction aligned with its corporate philosophy.
• 鎮守の森のプロジェクト (Jinchimori no Mori Project)minorStrategic or Co-development PartnerA project based on the 'chinju no mori' (shrine forests) that protected people's lives during the Great East Japan Earthquake and other disasters. The project aims to build green infrastructure and community disaster prevention through nature symbiosis.
• REASP (一般社团法人再生可能エネルギー長期安定电源推进协会)coreStrategic or Co-development PartnerREASP (Renewable Energy Association for Stable Power) is a regular member. REASP is an infrastructure business organization working to promote renewable energy as a main power source for energy security and citizens' lives, and to achieve long-term stable supply and clean, affordable electricity.
• TCFD (Task Force on Climate-related Financial Disclosures)coreStrategic or Co-development PartnerGPSS has expressed support for TCFD recommendations. TCFD was established to encourage companies to assess and disclose the financial impact of climate change risks and opportunities on their businesses.
• TNFD (Task Force on Nature-related Financial Disclosures)coreStrategic or Co-development PartnerGPSS participates in the TNFD Forum. TNFD is an international initiative established to shift global capital flows toward nature-positive outcomes through disclosure of nature and biodiversity information.

Scale indicators5 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• Shizen Energy Inc. Shizen Energy develops, finances, and operates renewable energy power plants in Japan (solar, wind, hydro, biomass); its renewable IPP model and Japan focus make it a close direct comparable to GPSS's community and wind generation business.
• Japan Wind Development Co., Ltd. (JWD): Japan Wind Development is a leading Japanese onshore wind power developer and operator with a portfolio of operating wind farms, directly comparable to GPSS's wind development and ownership activities in Japan.
• Renewable Japan Co., Ltd. Renewable Japan develops and operates solar and wind power plants in Japan and provides comparable renewable energy IPP services, overlapping directly with GPSS's wind and renewable energy generation business.
• Eurus Energy Holdings Corporation: Eurus Energy is one of Japan's largest wind power developers, with operating wind farms across Japan; it directly competes with GPSS in onshore wind development and operates a similar IPP-style asset model.
• Pacifico Energy K.K. Pacifico Energy develops and operates large-scale solar and wind power projects in Japan, serving the same IPP market and competing directly with GPSS for project sites, PPAs, and capital.

Broad incumbents

• Tokyo Electric Power Company (TEPCO Renewable Power): TEPCO, through TEPCO Renewable Power, is developing and operating large-scale wind and solar projects in Japan; as the incumbent utility, it provides overlapping renewable generation services at a much larger scale than GPSS.
• INPEX Corporation (Renewables Division): INPEX is expanding into renewable energy including wind and hydro in Japan as part of its energy transition; its broader scale and capital base overlap with GPSS's Japanese renewable generation activities.
• Sumitomo Corporation (Energy Infrastructure): Sumitomo Corporation operates a broad renewable energy and power infrastructure business globally and in Japan, including wind, solar, and hydro; it is a larger incumbent with overlapping capabilities in Japanese renewable development.

Others

• DBJ (Development Bank of Japan) Renewable Energy Investments: DBJ is a major institutional investor and lender in Japanese renewable energy infrastructure, including wind and community power; relevant as a capital provider/ecosystem participant that GPSS would likely interact with for sustainable financing.

Emerging players

• Pattern Energy Japan: Pattern Energy operates large-scale wind farms globally and has Japanese projects; its wind-focused IPP model is closely aligned with GPSS's wind power generation business, though with a much larger global footprint.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks5 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/channel/UCsaYORmdQPaMfpCkGhX7JiQ
• Facebookfacebook.com/gpssjp
• LinkedInlinkedin.com/company/gpss-engineering-inc

Compliance3 records

Revenue estimate

Valuation estimate

Number of profiles

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about GPSS Engineering Inc.