SymEnergy

What SymEnergy does

SymEnergy Inc. (シン・エナジー株式会社) is a Kobe, Japan-headquartered renewable energy developer and registered retail electricity supplier (No. A0056) founded in 1993 as Koyo Denki Engineering. The company develops, constructs, finances, and operates distributed renewable generation assets across solar, wind, biomass, biogas, small hydro, and binary geothermal, with group capacity of 74,685 kW as of September 2025 across the Ishikari Hachinosawa (21 MW) and upcoming Miyazaki (30 MW) wind farms, plus biomass (e.g., 1,940 kW Obaekuroshio, 900 kW Arita River, 1,115 kW Uchiko), 720 kW Nishinomiya biogas, and several small hydro and binary sites. SymEnergy also runs a vertically integrated low-voltage and high-voltage retail electricity business supplying households, shops, factories, buildings, and hospitals across Japan via a self-serve portal and a direct enterprise sales force.

Commercially, SymEnergy operates a sales-led, multi-channel model: direct enterprise sales for high-voltage PPAs and self-consumption projects (examples include Mitsubishi Estate's LOGIX CROSS Ebina, Ricoh Industries Tohoku via JA Mitsui Leasing, Nomura Real Estate Shin-Yokohama offsite PPA); self-serve online switching for residential customers; and a franchise-style regional new power network with local governments and SPCs (Awaji City Regional Power, Narita-Katori Energy, Mie Koukiki Energy). Revenue is generated through recurring FIT wholesale power sales, retail electricity supply fees, project development/EPC, demand management (BEMS/MEMS) and JEPX trading, and consulting for regional new power operators. A 2017 capital and business alliance with Mitsui & Co. provides strategic balance sheet support, and ESG-linked facilities (Shiga Bank sustainability-linked loan, Aozora Bank JPY 5B Positive Impact Finance) fund ongoing deployment.

Proprietary technology is concentrated in three areas: a multi-lens small wind turbine (Patent JP 6128575, also US) developed with Riam Wind and Kyushu University that doubles to triples output at a given rotor diameter; biomass gasification clinker inhibition technology (Patent JP 6815545) co-developed with Chubu University that limits clinker to ~10%; and digestate decompression concentration technology for biogas plants. Headcount is approximately 140 as of April 2026, with offices from Hokkaido to Okinawa. FY2025 (November year-end) revenue is ¥38.4 billion.

Name

SymEnergy

Legal name

シン・エナジー株式会社 (SymEnergy Inc.)

Website

https://symenergy.co.jp

Company type

Private

Founded year

1993

Operating status

Operating

Headcount range

101–250 employees

Short description

SymEnergy is a Japan-based renewable energy developer and registered retail electricity provider that develops and operates solar, wind, biomass, biogas, hydro, and geothermal assets while supplying low- and high-voltage electricity to residential, commercial, and government customers nationwide.

Ownership category

akta.pro rank

Product category

Renewable Energy Services & Retail Electricity Supply

NAICS

Electric Power Generation, Transmission and Distribution (2211), Electric Power Generation (22111), Solar Electric Power Generation (221114), Wind Electric Power Generation (221115)

SIC

Electric Services (4911), Cogeneration Services & Small Power Producers (4991)

akta.pro primary industry

Retail Supply + DER/Virtual Power Plant Bundles (Solar, Storage, DR) (EUAGABAI)

akta.pro secondary industries

DER Aggregation & Virtual Power Plants (VPPs) (EUAMAJAC), Gasification & Pyrolysis-to-Power (Waste/Biomass Advanced Thermal) (EUACAIAL)

Keywords

• Renewable energy generation
• Retail electricity supply
• Biomass power plants
• Solar PPA services
• Regional energy consulting

Headquarters

HQ city

Hyogo

HQ country

Japan

HQ region

Asia

Offices7 records

Markets served

GTM type

B2B and B2C

Offering type

Services

Cost components

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

Revenue model

1. Electricity Retail Sales: SymEnergy sells electricity to end customers as a registered retail electricity provider (小売電気事業者, Registration No. A0056). The company serves both low-voltage (residential, shops) and high-voltage (factories, buildings, hospitals) customers through direct sales channels, offering optimized plans for diverse customer lifestyles. Revenue comes from recurring electricity supply fees charged to customers based on consumption.
2. Renewable Energy Development & Power Generation: SymEnergy develops, designs, constructs, and operates renewable energy power plants (solar, wind, biomass, biogas, hydro, geothermal) across Japan. Revenue is generated through Feed-in Tariff (FIT) power sales to utilities, as well as self-consumption models. Projects are often structured with local SPCs and regional partners to enable project financing.
3. Regional New Power Operations & Support: SymEnergy supports the establishment and operation of regional new power companies (地域新電力) such as Awaji City Regional New Power and Narita-Katori Energy. Services include consulting, setup support, and ongoing operations management for local energy retailers, contributing to energy self-sufficiency in local communities.
4. Power Trading & Demand Management: SymEnergy buys and sells electricity in the wholesale market and provides demand management services. The company is registered with JEPX (Japan Electric Power Exchange) and acts as an aggregator for energy management subsidy programs (BEMS, MEMS).

Pricing tiers

Go-to-market motion1 record

Distribution channels4 records

Marketing channels7 records

Core offering

SymEnergy develops, constructs, and operates renewable energy power plants (solar, wind, biomass, biogas, small hydro, and geothermal binary) across Japan and sells electricity directly to end customers as a registered retail electricity provider (A0056). The company serves low-voltage residential and small commercial customers and high-voltage enterprise customers through dedicated direct sales and online channels, and supports the establishment and operation of regional new power companies for local governments and communities.

Product overview

SymEnergy operates a comprehensive renewable energy portfolio combining power generation development with electricity retail services. The core offering includes solar, wind, biomass, biogas, and hydropower generation facilities developed across Japan, complemented by low-voltage and high-voltage power sales for residential, commercial, and industrial customers. The company supports regional new power companies including Awaji Island Regional Power (あわぢからでんき), Narita-Katori Energy, and Mie Koukiki Energy. Key proprietary technologies include wood biomass gasification with clinker suppression (Patent No. 6815545) and digestate concentration technology. The product portfolio spans power plants such as the 21MW Ishikari Wind Farm, 1,940kW Obaekuroshio Biomass Plant, and the 900kW Arita River Biomass Plant, along with innovative solutions like Carport PV (zero-investment PPA model), Magikal Pooh food waste methane digestion, and regional new power support services.

Differentiator

Problem solved

Functional benefit

Brands

• Awaji Kara Electricity (あわぢからでんき): Regional power brand for Awaji City area providing locally generated renewable electricity
• Bellmezon Electricity (ベルメゾンでんき)
• Tokunoshima Power (徳之島電力)

Quantifiable outcome

• 74,685 kW total renewable energy capacity across all group power plants as of September 2025
• +3 more outcomes

Named customers7 records

Segments4 records

Ideal customer profiles4 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Partnerships

13 partnerships are on record, tiered core.

• TerraWind (テラ風力株式会社)coreStrategic or Co-development Partner · 26 June 2026SymEnergy and TerraWind formed an 80/20 joint venture (TerraWind 80%, SymEnergy 20%) to develop a 30-MW wind power project in Miyazaki Prefecture. Construction scheduled to begin Q3 2029; commercial operation targeted for 2032. This marks the first step toward building a long-term strategic relationship for renewable energy project development across Japan. The deal increases TerraWind's development pipeline to 351 MW.
• Riam Wind (株式会社リアムウィンド)coreStrategic or Co-development Partner · 9 March 2022Business partnership for small wind turbine development using multi-lens technology. SymEnergy invested in Riam Wind, a Kyushu University venture company, and co-develops small wind power projects using the patented multi-lens wind turbine technology. Riam Wind holds exclusive licensing rights to Kyushu University's wind-lens patent (Patent No. 5030122).
• J-Wind (株式会社ジェイウインド) / J-POWERcoreStrategic or Co-development PartnerJoint venture partnerships with J-Wind (100% subsidiary of J-POWER / 電源開発) for wind power projects including Ishikari Yachinosawa Wind Farm (21 MW) and Esashi Wind Farm (21 MW), both developed through SPCs (石狩グリーンエナジー and 江差グリーンエナジー respectively).
• Awaji City / Hokudan (株式会社ほくだん)coreStrategic or Co-development PartnerSymEnergy supports Awaji City and Hokudan in operating the Awaji City Regional New Power business (agreed January 2021), the first such entity in Hyogo Prefecture. SymEnergy provides power supply, PPA solar development, and operational expertise for local energy autonomy.
• Narita-Katori Energy (成田香取エネルギー)coreStrategic or Co-development PartnerJointly established July 2016 by Narita City and Katori City — the first two-city regional new power company in Japan. SymEnergy supports setup and ongoing operations, sourcing renewable power for local government facilities.
• Mitsui & Co. (三井物産株式会社)coreStrategic or Co-development PartnerStrategic capital and business alliance (October 2017) for renewable energy project development and new power operations. Mitsui & Co. is also a major external shareholder.
• Takumi Yama (タカミヤ)coreTechnology or IntegrationJoint development partner for the carpark PV (parking canopy solar) product. Takumi Yama provides the carport structural expertise while SymEnergy provides the solar PV and PPA business model. Product meets JIS and building code requirements.
• Mitsubishi Estate (三菱地所)coreChannel Partner/ Reseller/ DistributorRE100-aligned corporate customer for PPA model rooftop solar at LOGIX CROSS Ebina logistics facility. SymEnergy designed, installed, and operates the system under a long-term PPA.
• Ricoh Industries (リコーインダストリー)coreChannel Partner/ Reseller/ DistributorPPA model carpark PV installed at Ricoh Industries Tohoku Office (DC146kW/AC100kW). Supports Ricoh Group's RE100 commitment and 50% renewable electricity target by 2030. JA Mitsui Lease owns equipment.
• Revacs (株式会社リヴァックス)coreStrategic or Co-development PartnerCo-development partner for the Nishinomiya Biogas Power Plant (720kW). Revacs specializes in food waste recycling and organic waste processing; the plant processes ~70t/day of food waste from the Hanshin region.
• Okuhida Natural Energy (奥飛騨自然エネルギー合同会社)coreStrategic or Co-development PartnerRegional joint venture for geothermal binary and hot spring power generation in Okuhida region (Okuhida 1st and 2nd Binary, 飛騨高山しぶきの湯 biomass). Won 2019 Environment Minister Award together with SymEnergy.
• Okuhida Hydroelectric Power (奥飛騨水力発電株式会社)coreStrategic or Co-development PartnerRegional joint venture for small-scale hydroelectric power generation in Okuhida (Aboudani, Ippousui-1st, Sotegatani). Jointly awarded 2022 New Energy Foundation Chairman's Award. SymEnergy provides EPC and operational services.
• Hida-Takayama Green Heat (飛騨高山グリーンヒート合同会社)coreStrategic or Co-development PartnerRegional joint venture operating the 165kW 飛騨高山しぶきの湯 Biomass Power Plant using local wood pellets, providing heat to the adjacent onsen facility. SymEnergy provides EPC and operational services.

Scale indicators5 records

Recent moves7 records

Expansion highlights6 records

Market position

Competitive moat5 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/@symenergy
• Facebookfacebook.com/symenergy
• Instagraminstagram.com/earthdefenseforce_symenergy/?hl=ja
• Xx.com/symenergy

Compliance7 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles8 records

Subsidiaries3 records

Funding overview

Funding rounds1 record

Investors1 record

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

M&A

Investments1 record

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

Frequently asked questions about SymEnergy