What TerraWind Renewables does

TerraWind Renewables Inc. is an onshore wind power developer and independent power producer (IPP) established in November 2023 and headquartered in Tokyo. The company originates, acquires, develops, and operates onshore wind farms across Japan and the broader Asia-Pacific region, with current operations focused on Japan and Korea and a pipeline extending to Taiwan (via the Synera Renewable Energy partnership). As of July 2026, TerraWind's portfolio comprises ten onshore wind projects spanning Ishikawa, Kumamoto, Hokkaido, Akita (two sites), Aomori, Iwate (two sites), Miyazaki, and Fukushima prefectures, totaling 376 MW of installed or planned capacity. The company has set a corporate target of reaching construction commencement or commercial operation date for 500 MW of wind farms and securing a 1 GW development pipeline by 2030.

The underlying technology is conventional onshore wind power generation, with the platform's core competency spanning the full development lifecycle: project origination and acquisition, wind resource analysis (including wind forecasting, MCP analysis, and AEP prediction), micro-siting optimization, permitting, construction oversight, and asset management. The company's revenue model is the sale of wind-generated electricity under long-term Power Purchase Agreements (PPAs) negotiated directly with corporate offtakers and electric utilities, producing contracted, multi-decade cash flows characteristic of infrastructure assets. TerraWind distributes energy exclusively through direct B2B channels — corporate PPAs and utility PPAs — supplemented by a jointly-owned special purpose company (SPC) with Sym Energy for the Miyazaki project.

TerraWind is privately held, with 80% owned by Stonepeak (a US alternative investment firm specializing in infrastructure and real assets, with approximately USD 61.1 billion AUM) and 20% retained by Shizen Energy Inc., a Japanese renewable energy developer founded in 2011. Shizen Energy contributes a decade of onshore wind development expertise, an established base of corporate PPA customers, and operating personnel; Shizen's former Executive Officer for Investment & Strategy, Oliver Senter, serves as TerraWind's Representative Director. The platform originated from Shizen Energy's wind power business segment, which had operated for approximately ten years prior to the March 2024 Stonepeak investment. The company operates with 1–10 employees and is in a pre-commercial phase, with most projects still in development or pre-construction; the Fukushima project is slated to commence construction in Q4 2026 and reach commercial operation in Q1 2029.

Name

TerraWind Renewables

Legal name

TerraWind Renewables Inc.

Website

https://terrawindrenewables.com

Company type

Private

Founded year

2023

Operating status

Operating

Headcount range

1–10 employees

Short description

TerraWind Renewables is a Tokyo-based onshore wind developer and IPP, majority-owned by Stonepeak (80%) with Shizen Energy (20%), developing a 376 MW portfolio of ten wind projects across Japan targeting 500 MW COD by 2030.

Ownership category

akta.pro rank

Product category

Onshore Wind Power Generation

NAICS

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

SIC

Cogeneration Services & Small Power Producers (4991)

akta.pro primary industry

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

akta.pro secondary industries

Greenfield Site Origination & Land Acquisition (Leases, Easements, Title) (EUAMAAAA), Permitting, Environmental & Stakeholder Engagement (EIA/ESIA, Community Relations) (EUAMAAAB), Interconnection, Grid Studies & Queue Management (Feasibility/System Impact/Facilities) (EUAMAAAC), Commercial Structuring & Offtake (PPAs, CfDs, Corporate PPAs, Merchant Strategy) (EUAMAAAE), Development-Stage M&A & Portfolio Acquisition (Early-Stage/Ready-to-Build) (EUAMAAAF)

Keywords

• Onshore wind power
• Wind project development
• Independent power producer
• Renewable energy infrastructure
• Corporate PPA services

Headquarters

HQ city

Tokyo

HQ country

Japan

HQ region

Asia

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Wind Power Generation & Electricity Sales: TerraWind develops and operates onshore wind farms and sells the generated electricity under long-term Power Purchase Agreements (PPAs) to utilities and corporate PPA customers. Revenue is derived from the sale of renewable electricity over multi-decade contract terms, providing stable, contracted cash flows characteristic of infrastructure assets.

Go-to-market motion1 record

Distribution channels3 records

Marketing channels3 records

Core offering

TerraWind Renewables is an onshore wind energy developer and Independent Power Producer (IPP) that develops, acquires, owns, and operates onshore wind power projects across Japan and the broader Asia-Pacific region. The company sells the generated electricity to electric utilities and corporate customers under long-term Power Purchase Agreements (PPAs). Its portfolio consists of ten onshore wind projects in Japan with a combined planned capacity of 376 MW across multiple prefectures.

Product overview

TerraWind Renewables is an onshore wind power developer and Independent Power Producer (IPP) covering the Asia-Pacific region with current focus on Japan and Korea. The company's portfolio consists of ten onshore wind projects across Japan totaling 376 MW in planned capacity. Projects span multiple prefectures (Ishikawa, Kumamoto, Hokkaido, Akita, Aomori, Iwate, Miyazaki, and Fukushima) and are developed in partnership with Shizen Energy and Sym Energy. TerraWind targets to develop and acquire 500 MW of wind farms reaching construction or COD and secure a pipeline of 1 GW by 2030.

Differentiator

Problem solved

Functional benefit

Products and services

• Ishikawa Wind Project Onshore wind power project located in Ishikawa Prefecture, Japan, with a planned installed capacity of 9 MW under development by TerraWind Renewables.
• Kumamoto Wind Project Onshore wind power project located in Kumamoto Prefecture, Japan, with a planned installed capacity of 21 MW under development by TerraWind Renewables.
• Hokkaido Wind Project Onshore wind power project located in Hokkaido Prefecture, Japan, with a planned installed capacity of 42 MW under development by TerraWind Renewables.
• Akita 1 Wind Project Onshore wind power project located in Akita Prefecture, Japan, with a planned installed capacity of 25 MW under development by TerraWind Renewables.
• Akita 2 Wind Project Onshore wind power project located in Akita Prefecture, Japan, with a planned installed capacity of 8 MW under development by TerraWind Renewables.
• Aomori Wind Project Onshore wind power project located in Aomori Prefecture, Japan, with a planned installed capacity of 12 MW under development by TerraWind Renewables.
• Iwate 1 Wind Project Onshore wind power project located in Iwate Prefecture, Japan, with a planned installed capacity of 120 MW under development by TerraWind Renewables.
• Iwate 2 Wind Project Onshore wind power project located in Iwate Prefecture, Japan, with a planned installed capacity of 90 MW under development by TerraWind Renewables.
• Miyazaki Wind Project Onshore wind power project located in Miyazaki Prefecture, Japan, with a planned installed capacity of 30 MW (24 MW net equity basis), jointly developed by TerraWind Renewables and Sym Energy Co., Ltd. through a special purpose company.
• Fukushima Wind Project Onshore wind power project located in Fukushima Prefecture, Japan, with a planned installed capacity of approximately 25 MW. Construction is scheduled to commence in Q4 2026, with commercial operation expected in Q1 2029.

Quantifiable outcome

• 376 MW of onshore wind capacity under development in Japan as of July 2026
• +3 more outcomes

Segments2 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Partnerships

One partnership is on record.

• Sym Energy Co., Ltd.coreStrategic or Co-development Partner · 26 June 2026TerraWind entered into a strategic partnership with Sym Energy Co., Ltd. (Head Office: Kobe, Hyogo Prefecture; President and CEO: Masahiro Inui) in June 2026 for the joint development of a new onshore wind power project in Miyazaki Prefecture. The two companies established a jointly owned Special Purpose Company (SPC) to advance the project. The partnership combines TerraWind's project development and financing capabilities with Sym Energy's local expertise and resources to maximize the abundant wind resources of Miyazaki Prefecture and the broader Southern Kyushu region.

Scale indicators8 records

Recent moves4 records

Expansion highlights5 records

Broad incumbents

• NextEra Energy Resources: The world's largest wind and solar IPP operator. Comparable to TerraWind in business model (develop, own, operate wind farms under long-term contracts) but operates at vastly greater scale and outside Japan/APAC.
• Pattern Energy Group: North American headquartered renewables IPP owning and operating utility-scale wind (and increasingly transmission/storage) assets. Broadly comparable to TerraWind's IPP model of developing, owning and operating wind farms under long-term PPAs, although at much larger scale and outside APAC.
• Shizen Energy Inc. TerraWind's 20% shareholder and parent of its inherited wind development segment. A broader Japanese renewables IPP with solar, wind, biomass and hydro assets plus an energy tech/EMS business — overlaps TerraWind on wind but operates a wider portfolio.
• EDP Renewables Japan (EDPR): Asian-Pacific arm of global renewables IPP EDP Renováveis. Comparable to TerraWind as a multi-technology renewables developer targeting Japan and APAC wind opportunities with utility and corporate offtakers.
• RWE Renewables Japan: European utility RWE's renewable energy arm, which has been actively developing and acquiring onshore wind (and offshore) projects in Japan. Comparable to TerraWind as a global IPP entering the Japan onshore wind market with corporate PPA ambitions.

Direct peers

• Japan Wind Development Co., Ltd. A subsidiary of Electric Power Development Co. (J-Power) and one of Japan's leading onshore wind developers, with utility-scale projects across Tohoku, Kyushu and Hokkaido. Closely comparable to TerraWind in technology, customer type (utilities + corporates), and project geography.
• GreenPower Co., Ltd. Japanese renewable energy developer with significant onshore wind development in Hokkaido and Tohoku. Comparable to TerraWind in that it originates and develops utility-scale onshore wind projects in Japan for sale of electricity via PPAs.
• Eurus Energy Holdings: One of Japan's largest independent wind power developers and IPPs, operating onshore and offshore wind assets across Japan. Directly comparable to TerraWind as a Japan-focused onshore wind IPP pursuing similar prefectures and corporate/utility offtake structures.
• Acacia Renewables: Japan-focused wind energy developer backed by Iberdrola. Comparable to TerraWind in that it develops greenfield onshore wind projects in Japan and pursues corporate and utility PPAs in the same prefectures.

Emerging players

• Synera Renewable Energy: Taiwanese offshore wind developer in which Stonepeak is an investor and Shizen Energy is a partner. Comparable to TerraWind via the shared Stonepeak-Shizen relationship and the broader Asia-Pacific renewables platform thesis, though focused on offshore rather than onshore.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat5 records

Key risks5 records

Key highlights6 records

Customer concentration

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

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 TerraWind Renewables