What RS Holdings does

RS Holdings Co., Ltd. (RSホールディングス株式会社) is a privately held Japanese holding company established in June 2019 that operates as the parent entity of the RS Group, a multi-subsidiary platform focused on renewable energy, grid-scale battery storage, real estate funds, and overseas renewable investments. The group manages approximately 145 power generation facilities across Japan with a combined installed capacity of 1.5GW and more than 2,700MWh of renewable energy generation capacity, alongside a real estate fund platform (RS Investment Management) overseeing approximately 6,000 billion yen in AUM as of 2025. Core operating subsidiaries include RS Asset Management (renewable energy facility management), RS Asset Advisors (battery storage and energy fund arrangement), RS Investment Management (real estate funds), RSBM (a 50/50 joint venture with Sumitomo Mitsui Trust Bank for grid battery storage asset management), and Digital Climate Japan (impact investment banking, majority acquired February 2026). The group serves institutional investors, financial institutions, sovereign wealth funds, large corporate power buyers, and local governments.

The group's core technology stack centers on the ELIC AI power management platform developed by partner Sustech, which provides high-precision power generation and market price forecasting, cross-market optimization control, and aggregation coordination for non-FIT renewable assets and battery storage facilities. The group also leverages project finance arrangements (e.g., Aozora Bank as arranger for the Oita Hinode 51MW/204MWh battery storage project), non-recourse financing structures, and consortium-based development with major partners including Tokyo Gas, Shikoku Electric Power, Hulic, Fuyo General Lease, and Itochu.

RS Holdings makes money through four primary streams: (1) renewable energy power generation revenue via FIT/FIP and corporate PPA contracts, (2) battery storage revenue from capacity markets, supply-demand adjustment markets, and JEPX electricity trading, (3) real estate fund management fees (arrangement, asset management, and performance fees) from institutional investors, and (4) overseas renewable energy investment income. The group also captures advisory and arrangement fees through Digital Climate Japan and impact-investment-linked carbon credit activity. Pricing is not publicly disclosed; revenue mechanics are project-by-project, fee-based on AUM, and transaction-based on energy sales.

Name

RS Holdings

Legal name

RS Holdings Co., Ltd.

Website

https://rs-holdings.co.jp

Company type

Private

Founded year

2019

Operating status

Operating

Short description

RS Holdings is a Japanese holding company that operates the RS Group, managing renewable energy power generation (~145 facilities, 1.5GW), grid-scale battery storage, and real estate funds (combined AUM ~5,876 billion yen as of December 2025). It serves institutional investors, financial institutions, corporate power buyers, and public-sector clients through its operating subsidiaries.

Ownership category

akta.pro rank

Product category

Renewable Energy Asset Management

NAICS

Management of Companies and Enterprises (551), Portfolio Management and Investment Advice (52394), Other Financial Vehicles (52599)

SIC

Investors, Nec (6799), Investment Advice (6282)

akta.pro primary industry

Renewable Energy Asset Management (Solar/Wind/Hydro/Geothermal) (EUAEAMAB)

akta.pro secondary industries

Natural Resources — Energy & Mineral Resources (FSAAAKAJ), Managed Account / SMA Multi-Manager Platforms (FSANAGAL)

Keywords

• Renewable energy asset management
• Grid battery storage operations
• Real estate fund management
• Solar power generation
• Green finance advisory

Headquarters

HQ city

Tokyo

HQ country

Japan

HQ region

Asia

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Infrastructure, Technology or R&D, Marketing or Sales, Others

Revenue model

1. Renewable Energy Power Generation: Operating renewable energy power generation facilities (solar, wind) nationwide. Revenue generated from selling electricity under FIT/FIP schemes and direct power purchase agreements with corporate buyers.
2. Grid Battery Storage Business: Development and operation of large-scale battery storage systems for grid stabilization, frequency regulation, and renewable energy output smoothing. Revenue from capacity markets, supply-demand adjustment markets, and JEPX electricity trading.
3. Real Estate Fund Management: Arrangement and management of real estate funds including apartment hotels and logistics facilities. Asset management fees and performance fees from institutional investors including sovereign wealth funds.
4. Overseas Renewable Energy Investment: Investment in renewable energy projects outside Japan through overseas subsidiaries and partnerships.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels2 records

Core offering

RS Holdings is a holding company that manages a group of subsidiaries providing renewable energy power generation (solar and wind) operating approximately 145 facilities with 1.5GW total capacity, grid-scale battery storage asset management, real estate fund arrangement, and green finance advisory services. The group manages over 5,876 billion yen in AUM (as of December 2025) through subsidiaries such as RS Asset Management, RS Asset Advisors, RS Investment Management, RSBM, and Digital Climate Japan, targeting institutional investors, financial institutions, sovereign wealth funds, large corporate power buyers, and government entities.

Product overview

RS Holdings operates as a holding company overseeing a group of subsidiaries that manage renewable energy power plants (approximately 145 facilities, 1.5GW total capacity), grid-scale battery storage projects, and real estate funds. The group consists of five main operating subsidiaries: RS Asset Management handles renewable energy facility operations; RS Asset Advisors manages battery storage and energy fund arrangement; RS Investment Management oversees real estate fund arrangements; RSBM (jointly with Sumitomo Mitsui Trust Bank) manages large-scale battery storage assets; and Digital Climate Japan provides green finance advisory services. The group leverages AI technology through partnership with Sustech's ELIC platform for power optimization. Combined AUM reaches approximately 5,876 billion yen as of December 2025.

Differentiator

Problem solved

Functional benefit

Products and services

• RS Asset Management — Renewable Energy Facility Operation and Asset Management Service Operates approximately 145 renewable energy power generation facilities (solar and wind) across Japan with combined equipment capacity of 1.5GW. Provides asset management and arrangement for non-FIT and FIT/FIP renewable energy projects, including long-term power and environmental value sales to corporate buyers. Targets institutional investors, financial institutions, and large corporations.
• RS Asset Advisors — Battery Storage and Energy Fund Arrangement Service Provides arrangement, investment, and related operations for battery storage facilities and renewable energy funds. Develops non-FIT renewable energy projects and supports stable clean electricity supply. Targets institutional investors and corporate buyers seeking renewable energy exposure.
• RS Investment Management — Real Estate Fund Arrangement Service Manages real estate fund arrangement including apartment hotels and logistics facilities. RSIM AUM reached approximately 6,000 billion yen as of 2025. Recently expanded into logistics-focused real estate funds via strategic capital partnership with JAIC Asset Management. Targets domestic and overseas institutional investors including sovereign wealth funds.
• RSBM — Large-Scale Battery Storage Asset Management Service Provides asset management services for domestic grid-scale battery storage projects including the 51MW/204MWh Oita Hinode Battery Storage project in Hiji Town, Oita Prefecture. Operates full merchant + project finance model. Targets institutional investors, financial institutions, and grid operators.
• Digital Climate Japan — Green Finance Advisory and Impact Investment Banking Operates as an impact investment-focused investment bank connecting Japanese climate change initiatives with global investors. Provides green finance advisory, corporate decarbonization consulting, and overseas investment introductions. Targets financial institutions, local governments, and corporates pursuing carbon neutrality.
• Oita Hinode Battery Storage Project (大分日出蓄電所) Grid-scale battery storage facility with rated output of 51MW and capacity of 204MWh. Provides supply-demand adjustment market services, frequency regulation, renewable energy output smoothing, and trading on the JEPX electricity market. Operated as a full merchant battery storage project.
• Koga Solar Power Plant (古河市上片田発電所) Solar power generation facility with 27,000kW output and 34,000kW total solar cell capacity. Sells electricity and environmental value long-term to Tokyo Gas (Japan's largest new electric power retailer). Operated as a FIP-scheme project developed via consortium with Shikoku Electric Power and Prominet Power (Tokyo Gas subsidiary).

Quantifiable outcome

• CO2 emissions reduction of 560,780 tons
• +3 more outcomes

Named customers2 records

Segments4 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

AI capability3 records

Feature1 record

Partnerships

13 partnerships are on record, tiered core and major.

• 合同会社アルタイル (Altair LLC)coreStrategic or Co-development Partner · 29 May 2026Business entity for Oita Hinode Battery Storage project (51MW/204MWh) in Hiji Town, Oita Prefecture. RSBM provides asset management services for this grid battery storage project which contributes to power supply-demand adjustment and grid stabilization for renewable energy expansion.
• JAICアセットマネジメント株式会社 (JAIC Asset Management)coreStrategic or Co-development Partner · 7 May 2026RS Investment Management (RSIM) acquired 40% of JAIC Asset Management's issued shares, establishing a strategic capital partnership. RSIM's chairman (Wakabayashi) became chairman of JAIC AM's board. The partnership combines JAIC AM's financial licenses and fund management capabilities in logistics facilities with RSIM's extensive investor network and real estate arrangement capabilities to accelerate growth in logistics-focused real estate fund business.
• 株式会社バイウィル (Baywill)coreStrategic or Co-development Partner · 20 April 2026RS Holdings and Baywill signed an MOU for collaboration in carbon reduction and environmental value creation. RS Holdings brings asset management capabilities with 5,000+ billion yen in renewable assets, while Baywill operates as a Climate Asset Developer with 190+ partnerships with financial institutions and municipalities. The partnership aims to create new business opportunities in environmental value creation, distribution, and utilization through fund formation and real estate/energy asset utilization.
• 株式会社RUTILEAmajorStrategic or Co-development Partner · 14 April 2026RS Holdings and RUTILEA signed MOU for collaboration in AI, real estate, energy, and data center fields. RUTILEA offers AI service business and AI infrastructure business including GPU data centers and power trading optimization AI. Partnership aims to create new business opportunities by combining RS Holdings' asset management capabilities with RUTILEA's AI and data center expertise.
• ヒューリック株式会社 (Hulic)majorStrategic or Co-development Partner · 19 March 2026Joint development of grid battery storage projects totaling 40MWh capacity by March 2028. RS Asset Advisors leads development while Hulic participates as a development partner, contributing to decarbonization and grid stabilization objectives.
• 芙蓉総合リース株式会社 (Fuyo General Lease)majorStrategic or Co-development Partner · 19 March 2026Joint development of grid battery storage projects totaling 40MWh capacity by March 2028. Fuyo General Lease participates in the consortium for battery storage development supporting renewable energy expansion.
• 伊藤忠商事株式会社 (Itochu)majorStrategic or Co-development Partner · 19 March 2026Joint development of grid battery storage projects totaling 40MWh capacity by March 2028. Itochu participates in the consortium bringing trading house capabilities to the battery storage development initiative.
• Digital Climate Japan株式会社 (Digital Climate Japan)coreStrategic or Co-development Partner · 2 February 2026RS Holdings acquired majority stake in Digital Climate Japan, a subsidiary of Digital Climate Group (Hong Kong). DCJ operates as an impact investment-focused investment bank, connecting excellent Japanese climate change initiatives with global investors and providing capital. The acquisition strengthens RS Holdings' impact investment capabilities in the Japanese market.
• ユニバーサル マテリアルズ インキュベーター株式会社 (UMI)majorStrategic or Co-development Partner · 11 September 2025RS Holdings and UMI (venture capital specializing in materials/chemical industry) signed business partnership for GX realization. Partnership focuses on joint examination of financing methods for social implementation of new technologies and joint business development. UMI is developing a Climate-Tech industrial base in Kawasaki City and participates in Yamaguchi Prefecture's GX initiatives.
• 東京ガス株式会社 (Tokyo Gas)coreStrategic or Co-development Partner · 1 July 2025Tokyo Gas (via Prominet Power subsidiary) co-invests in solar power project in Koga, Ibaraki with Shikoku Electric Power. RS Asset Management provides asset management for the project. Power and environmental value are sold long-term to Tokyo Gas, Japan's largest new electric power retailer. The project transitioned from FIT to FIP scheme.
• 四国電力株式会社 (Shikoku Electric Power)coreStrategic or Co-development Partner · 1 July 2025Shikoku Electric Power co-invests in solar power project in Koga, Ibaraki with Tokyo Gas. RS Asset Management provides asset management. Leverages extensive power generation facility operation experience to support long-term effective utilization of solar power equipment.
• 株式会社SustechmajorTechnology or Integration · 20 June 2025RS Asset Management and Sustech began collaborative demonstration using ELIC, Sustech's AI power management platform. ELIC utilizes world-class AI for high-precision power generation and market price forecasting, cross-market optimization control, and aggregation services. The partnership aims to improve renewable energy profitability and contribute to sustainable energy society through technology integration.
• 三井住友信託銀行株式会社 (Sumitomo Mitsui Trust Bank)coreStrategic or Co-development Partner · 17 April 2025Joint establishment of RSBM Corporation for large-scale battery storage asset management. RS Asset Advisors handles site selection and development while Sumitomo Mitsui Trust Bank provides financial expertise. The joint venture aims to contribute to renewable energy mainstreaming through grid battery storage asset management, with the battery storage role expected to expand rapidly under Japan's new energy plan targeting 50% renewable ratio by 2040.

Scale indicators12 records

Recent moves6 records

Expansion highlights5 records

Others

• Tokyu Land Corporation: Japanese real estate developer and asset manager (TYO:3284) with large fund management operations. Comparable for the real estate fund management dimension of the RS Holdings business via RSIM.

Broad incumbents

• Marubeni Corporation: Diversified Japanese trading house (TYO:8002) with significant renewable energy investments globally. Comparable as a broad incumbent investor in renewable energy projects with overlapping institutional counterparties.
• JERA Co., Inc. Japan's largest power generation utility JV between TEPCO and Chubu Electric. Comparable for grid-scale energy operations, renewable integration, and involvement in battery storage and supply-demand balancing markets.

Direct peers

• Shizen Energy Inc. Independent Japanese renewable energy developer and IPP across solar, wind, and storage. Comparable as a Japanese RE developer targeting corporate PPAs and grid-scale projects with similar decarbonization customer segment.
• West Holdings Corporation: Tokyo-listed renewable energy IPP (TYO:1407) operating solar and wind power plants across Japan. Directly comparable as a Japanese renewable energy developer/operator with overlapping target markets and project structures.
• Pacifico Energy: Japan-focused solar and wind IPP and developer. Comparable as a renewable energy asset operator in Japan pursuing utility-scale projects with institutional investors and corporate offtakers.
• RENOVA Inc. Multi-technology renewable energy developer (TYO:9519) operating solar, biomass, wind, and geothermal projects in Japan. Comparable as a Japanese RE operator and developer with similar offtake patterns and policy exposure.
• NTT Anode Energy: NTT Group's energy platform focused on data center decarbonization, renewable PPAs, and battery storage. Comparable for combining renewable energy operations with data center power needs and corporate PPA customers.
• Eurus Energy Holdings Corporation: Toyota Tsusho and Chubu Electric-backed wind and solar IPP in Japan. Comparable as a Japanese renewable energy operator with similar technology mix and asset management orientation.

Emerging players

• Fluence Energy, Inc. NASDAQ-listed (FLNC) pure-play battery energy storage system integrator with global project footprint. Comparable as a grid-scale battery storage technology and asset services provider relevant to the RSBM segment.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights6 records

Customer concentration

Revenue estimate

Valuation estimate

Number of profiles

Profiles3 records

Subsidiaries9 records

Funding overview

Funding rounds

Investors

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 RS Holdings