Name

PowerX

Legal name

PowerX, Inc. (株式会社パワーエックス)

Website

https://power-x.jp

Company type

Public

Founded year

2021

Operating status

Ipo

Headcount range

51–100 employees

Ownership category

akta.pro rank

Product category

Grid-Scale Battery Energy Storage Systems

NAICS

Battery Manufacturing (33591), Electric Power Generation (22111), Electric Power Transmission, Control, and Distribution (22112)

SIC

Electronic & Other Electrical Equipment (No Computer Equip) (3600), Electric Services (4911)

akta.pro primary industry

Utility-Scale BESS Project Development & Ownership (IPP/Developer) (EUAFAAAA)

akta.pro secondary industries

Managed EV Charging Software (Residential, Fleet, Workplace) (EUAFAMAA), Battery Modules & Packs (Industrial/Commercial pack assembly) (IMAGAHAB), Power Conversion Systems (PCS), Inverters & Transformers for BESS (EUAFAAAE)

Keywords

• Battery energy storage
• Grid-scale BESS
• Ultrafast EV charging
• Battery management software
• Electricity aggregation services

Headquarters

HQ city

Tokyo

HQ country

Japan

HQ region

Asia

Markets served

GTM type

B2B and B2C

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Hardware sales — BESS products: One-time and project-based sale of PowerX Mega Power (large-scale stationary storage batteries), PowerX Cube (all-in-one packaged battery storage with built-in PCS), and battery-integrated Hypercharger EV charging systems, manufactured at the Tamano, Okayama Power Base factory and partner facilities.
2. Battery Storage Power Plants (Battery Farm aggregation & developer services): Revenue from PowerX-led grid battery farm projects combining sale/lease of Mega Power BESS, Battery Farm AI aggregation services, and operations support for third-party battery farm owners, including tolling models that provide stable, predictable revenue across JEPX and balancing markets.
3. PowerX Energy — Electricity supply and aggregation services: Recurring revenue from retail electricity supply (flat-rate plans, nighttime renewable supply) and aggregation services that optimize PowerX-operated BESS across JEPX and balancing markets on behalf of corporate customers, plus virtual battery services for customers without space to install their own systems.
4. PowerX Ultrafast EV Charging for Biz (B2B EV charging): Usage-based revenue from corporate EV charging at PowerX Hypercharger stations deployed at Shin Marunouchi Building, Grand Front Osaka, Narita Airport Terminal 1, Azabudai Hills, and other locations, billed monthly via single invoice; RE100 Plan includes non-fossil certificates at ¥70/kWh; Basic Plan at ¥65–75/kWh.
5. PowerX App consumer subscriptions and pay-per-use charging: Recurring subscription fees from PowerX App membership plans (monthly or annual) for consumers using PowerX EV charging stations, plus pay-as-you-go general usage charges per kWh, processed via credit card payment providers.
6. International project-based BESS and battery supply contracts: One-time contract revenue from overseas BESS supply projects, such as the JPY 1.7 billion (USD 10.5 million) Vietnam BESS order (first overseas supply contract, revenue recognized in fiscal year ending December 2026) and the Montenegro EPCG MOU targeting approximately 500 MWh of BESS over an initial three-year period, with potential to expand into broader European and Asian markets.

Pricing tiers

Go-to-market motion5 records

Distribution channels8 records

Marketing channels9 records

Core offering

PowerX designs, manufactures, and sells grid-scale Battery Energy Storage Systems (BESS) including Mega Power, PowerX Cube all-in-one storage, and the Hypercharger 240kW battery-buffered ultrafast EV charger. It also offers PowerX Energy electricity supply and aggregation services, the PowerX App for consumer EV charging, Battery Storage Power Plants development schemes, and the Mega Power DC modular data center solution, all anchored by its in-house PowerOS software, Battery Farm AI aggregation, and the Tamano, Okayama Power Base factory.

Product overview

PowerX, Inc. operates a vertically integrated platform-plus-modules architecture centered on grid-scale Battery Energy Storage Systems (BESS), with manufacturing and software developed in-house at its Power Base factory in Tamano, Okayama and POWERD LAB R&D hub. Its portfolio combines hardware products (Mega Power for grid-scale storage, PowerX Cube for packaged storage with built-in PCS, Hypercharger for 240 kW battery-buffered EV fast charging, Mega Power DC for scalable modular data centers, and PowerX Energy Blade for rack-mounted data center BESS) with software-defined services (PowerX App for EV charging users, PowerX Energy for electricity supply and aggregation, EV Charging for Biz for corporate fleets, and Battery Storage Power Plants for battery farm development). The company's software stack — developed at POWERD LAB — manages power flow across batteries, inverters, and EV charging stations using cloud-to-edge architectures with AI/ML-driven optimization, digital twins, and proprietary algorithms like "Battery Farm AI." PowerX also operates a separate subsidiary, Ocean Power Grid, Inc., focused on marine vessel-based power transmission via Battery Tankers.

Differentiator

Problem solved

Functional benefit

Brands

• PowerX Mega Power: Safe and high-performing large-scale stationary storage batteries (grid-scale BESS).
• PowerX Hypercharger
• PowerX Cube
• PowerX Energy
• PowerX Energy Blade
• PowerX Mega Power DC
• POWERD LAB
• Power Base
• PowerOS

Products and services

• Mega Power Large-scale stationary storage battery / grid-scale BESS for renewable energy integration and grid applications, manufactured at PowerX's in-house Tamano factory and partner facilities; targeted at grid-scale battery farm developers, utilities, and corporate electricity buyers.
• PowerX Cube All-in-one packaged battery storage system with built-in PCS for commercial and industrial customers seeking integrated storage; LFP-based with the same PowerOS control stack as Mega Power.
• Hypercharger Battery-buffered 240 kW ultrafast EV charger that integrates storage for off-peak charging, peak shaving, and standalone backup power mode during outages; supports CHAdeMO, SAE J3400 (NACS), and CCS2 standards for corporate and consumer EV drivers.
• PowerX Energy Blade Rack-mounted lithium-ion battery energy storage system for AI data centers, supporting 800V DC power delivery and millisecond bidirectional grid response for frequency containment reserve and demand response monetization.
• Mega Power DC (Data Center) Scalable modular data center solution integrating battery storage with data center infrastructure, commercialized in February 2026 with co-development partner Internet Initiative Japan (IIJ).
• PowerX App Consumer-facing iOS/Android application for locating, reserving, and paying for Hypercharger EV charging sessions, supporting both pay-as-you-go general plans and monthly/annual membership subscriptions for individual EV drivers in Japan.
• PowerX Energy Smart energy services combining retail electricity supply (flat-rate and renewable nighttime plans) with aggregation services that optimize PowerX-operated BESS and customer-sited batteries across JEPX and balancing markets, including virtual battery services for customers without on-site installation space.
• Ultrafast EV Charging for Biz Corporate EV charging plans offering 150 kW ultrafast charging at all PowerX stations, including an RE100 Plan (¥70/kWh) with non-fossil certificates and a Basic Plan (¥65–75/kWh), with monthly invoicing, reservations up to 3 days in advance, and 75-minute usage windows for fleet operators, taxis, executive vehicles, and rental/car-sharing companies.
• Battery Storage Power Plants Battery farm development scheme combining Mega Power BESS supply, proprietary Battery Farm AI aggregation services, project development support, and access to PowerX's financial institution network, targeting land developers, grid-connection specialists, and battery farm developers in Japan.
• Ocean Power Grid Battery Tanker Electric transport vessels (Battery Tankers) that deliver surplus electricity to remote islands and enable power exchanges between islands with renewable energy and offshore wind installations, developed by PowerX's consolidated subsidiary Ocean Power Grid, Inc., with initial technology verification in Yakushima.

Quantifiable outcome

• System lifecycles exceeding 15 years via AI/ML RUL prediction and digital twin optimization
• +6 more outcomes

Named customers22 records

Segments7 records

Ideal customer profiles6 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration4 records

AI capability7 records

Feature8 records

Partnerships

16 partnerships are on record, tiered core technology platform for edge-to-cloud operations, flagship international strategic partnership; entry point into the european market, regional utility partner for battery farm sales and operations in japan, intra-group — subsidiary leadership, series a underwriter and partner of ocean power grid, inc. for electric transport vessels, flagship co-development partner for data center + bess integration, core strategic partner in battery storage business, co-development partner for primary frequency control certified solar-colocated bess, core utility partner for joint ev charging and bess innovation, flagship oem partner for branded ultrafast ev charging hub in japan, premium oem partner for branded ev charging hub deployment, core strategic partner for grid storage primary frequency control and joint battery farm development, core partner in yokohama carbon-neutral port initiative and battery tanker development, strategic energy partner in yokohama cnp hydrogen supply chain, asset-management channel partner for grid battery storage development and channel partner for battery farm development and operations.

• Mirantiscore technology platform for edge-to-cloud operationsTechnology or Integration · 9 June 2026Mirantis announced that PowerX has successfully deployed Mirantis k0s Kubernetes across hundreds of distributed edge devices nationwide in Japan, enabling scalable and reliable cloud-to-edge operations for EV charging stations and battery energy storage systems. The deployment uses a hybrid architecture with a cloud control plane on Google Kubernetes Engine and edge nodes running k0s agents, managed through GitOps workflows with ArgoCD. Since deploying k0s, PowerX has achieved improvements in scalability, reliability, operational simplicity, cost efficiency, and observability across its distributed energy infrastructure.
• Elektroprivreda Crne Gore (EPCG)flagship international strategic partnership; entry point into the european marketStrategic or Co-development Partner · 7 May 2026Signed May 7, 2026: PowerX signed an MOU with Montenegro's national electricity utility EPCG for strategic cooperation on Battery Energy Storage Systems, targeting approximately 500 MWh of BESS capacity over an initial three-year period to support renewable energy integration and grid stability in Montenegro. Under the MOU, the parties will collaborate on optimal BESS deployment plans for peak shaving and frequency regulation, and PowerX will also explore establishing local BESS assembly capabilities in Montenegro. The partnership positions Montenegro — an EU candidate country with electricity interconnection to Italy — as PowerX's strategic gateway to the broader European market.
• Chugin Energyregional utility partner for battery farm sales and operations in japanStrategic or Co-development Partner · 20 April 2026PowerX signed a battery farm sales and operations agreement with Chugin Energy (April 2026), combining PowerX's BESS and Battery Farm AI aggregation with Chugin Energy's regional utility footprint to deploy and operate grid-scale storage projects in Japan. Chugin Capital Partners also participated in PowerX's Series C funding.
• Hideyuki Onishi (President of subsidiary Power Grid Corporation)intra-group — subsidiary leadershipOthers · 27 March 2026PowerX Corporation announced executive personnel changes resolved at its 5th Annual General Meeting of Shareholders on March 27, 2026, including appointment of Hideyuki Onishi as Executive Officer while also serving as President of subsidiary Power Grid Corporation. The Privacy Policy lists Hideyuki Ohnishi as President & Representative Director of Ocean Power Grid, Inc. (PowerX's consolidated subsidiary).
• Kyushu Electric Powerseries a underwriter and partner of ocean power grid, inc. for electric transport vesselsStrategic or Co-development Partner · 26 February 2026PowerX conducted a Series A funding round for consolidated subsidiary Ocean Power Grid, Inc., targeting approximately 1.1 billion yen, with participation from business partners in electricity, shipping, and finance sectors including Kyushu Electric Power (expected to become a shareholder by exercising its J-KISS type stock acquisition rights). Funds will support R&D and operations for electric transport vessels delivering surplus electricity to remote islands and enabling power exchanges between islands with renewable energy and offshore wind (initial project in Yakushima).
• Internet Initiative Japan (IIJ)flagship co-development partner for data center + bess integrationStrategic or Co-development Partner · 13 February 2026PowerX and IIJ began joint exploration of battery storage and containerized data center solutions (announced February 2026). The collaboration extends PowerX's battery-powered solution portfolio for data centers, following the 'Mega Power DC' modular data center concept and the subsequent PowerX Energy Blade rack-mounted BESS for AI data centers.
• NTT Anode Energycore strategic partner in battery storage businessStrategic or Co-development Partner · 10 February 2026PowerX and NTT Anode Energy began exploring collaboration in the battery storage business (February 2026), with PowerX subsequently delivering a Battery Energy Storage System to NTT Anode Energy's Hokkaido Hakodate Battery Farm (March 2026) — a flagship commercial deployment of Mega Power BESS into the NTT Anode Energy portfolio.
• Nishimu Electronicsco-development partner for primary frequency control certified solar-colocated bessStrategic or Co-development Partner · 5 February 2026PowerX and Nishimu Electronics jointly delivered a solar-colocated Battery Energy Storage System that is certified for primary frequency control (February 2026), combining PowerX's BESS with Nishimu's electronics integration expertise for grid ancillary services.
• Kansai Electric Powercore utility partner for joint ev charging and bess innovationStrategic or Co-development Partner · 25 July 2025PowerX and Kansai Electric Power launched joint research on a battery-integrated ultra-fast EV charging system (July 2025). Separately, PowerX's BESS was selected for Kansai Electric Power's on-site battery service (December 2025). Kansai Electric Power is one of Japan's major utilities and a recurring buyer of PowerX battery storage systems.
• Mercedes-Benz Japanflagship oem partner for branded ultrafast ev charging hub in japanOEM/ Whitelabel/ Licensing Partner · 8 July 2025PowerX and Mercedes-Benz launched their first EV charging hub in Japan in July 2025, deploying PowerX Hypercharger 240 kW battery-integrated ultrafast chargers at a Mercedes-Benz-branded location in Japan.
• Audi Japanpremium oem partner for branded ev charging hub deploymentOEM/ Whitelabel/ Licensing Partner · 23 April 2025PowerX delivered an ultrafast EV charger (Hypercharger) to Audi's charging hub at Shibakoen in April 2025, marking Audi's Japanese rollout of branded ultrafast EV charging powered by PowerX hardware.
• JA Mitsui Leasingcore strategic partner for grid storage primary frequency control and joint battery farm developmentStrategic or Co-development Partner · 19 March 2025JA Mitsui Leasing and PowerX agreed on joint development of grid storage facilities (May 2024) and commenced Primary Frequency Control Operations at a battery farm in Tsu City, Mie Prefecture (March 2026). Joint development leverages JA Mitsui Leasing's leasing and financial structuring capabilities with PowerX's Mega Power BESS and Battery Farm AI aggregation.
• TEPCO Power Grid (Tokyo Electric Power Company Power Grid)core partner in yokohama carbon-neutral port initiative and battery tanker developmentStrategic or Co-development Partner · 28 June 2024TEPCO Power Grid and PowerX are co-developing battery tankers as part of Yokohama's Carbon-Neutral Port (CNP) transformation targeting net-zero GHG emissions by 2050. Yokohama's waterfront district accounts for about 40% of the city's CO2 emissions, and the partnership addresses battery-powered maritime energy transport.
• ENEOS Corporationstrategic energy partner in yokohama cnp hydrogen supply chainStrategic or Co-development Partner · 28 June 2024ENEOS Corporation is collaborating with the City of Yokohama on hydrogen supply chains as part of the Carbon-Neutral Port initiative that also involves PowerX's battery tanker development with TEPCO Power Grid and PowerX.
• MIRARTH Asset Managementasset-management channel partner for grid battery storage developmentChannel Partner/ Reseller/ Distributor · 28 May 2024MIRARTH Asset Management and PowerX entered a business alliance for the development of grid battery storage (蓄電所) projects (June 2024), with MIRARTH contributing asset management expertise to deploy PowerX-led battery farm projects in Japan.
• Eco Stylechannel partner for battery farm development and operationsChannel Partner/ Reseller/ Distributor · 7 February 2024PowerX and Eco Style signed a business alliance for the development and operation of battery storage power plants (February 2024), combining PowerX's BESS and Battery Farm AI aggregation with Eco Style's renewable energy project development capabilities in Japan.

Scale indicators10 records

Recent moves10 records

Expansion highlights7 records

Direct peers

• Fluence Energy: Global leader in utility-scale battery energy storage with a vertically integrated product stack (Gridstack, Mosaic), software-defined operations, and a similar focus on grid services monetization. Most directly comparable to PowerX in the BESS project development and IPP/aggregation space.
• BYD Energy Storage: Vertically integrated Chinese supplier of LFP-based BESS, EVs, and battery-buffered ultrafast EV chargers, with strong global scale and aggressive cost positioning. Comparable to PowerX in combining BESS, EV charging, and cell-level integration.
• Sungrow Power Supply: One of the world's largest suppliers of BESS, PCS, and inverters, with a strong utility-scale storage portfolio. Comparable to PowerX across stationary BESS hardware, power conversion, and grid-scale project deployments.
• Huawei Digital Power: Provides smart PV, utility-scale BESS, and a global network of battery-buffered ultrafast EV chargers (FusionCharge). Closely matches PowerX's combined BESS + ultrafast EV charging + software management positioning.
• ABB E-mobility: Global supplier of DC fast and ultrafast EV charging hardware, including battery-integrated and high-power systems. Comparable to PowerX's Hypercharger 240 kW product line and OEM-branded charging deployments.

Broad incumbents

• Tesla Energy: Operates Megapack, the dominant global utility-scale BESS product, and a global Supercharger network with integrated battery buffering. Sets the pricing and scale benchmark PowerX must compete against in both grid storage and ultrafast EV charging.
• Saft (TotalEnergies): Industrial battery manufacturer within TotalEnergies producing cells, modules, and complete ESS for grid, industrial, and mobility use cases. Comparable to PowerX's BESS module/pack assembly and stationary storage applications.

Regional players

• Sumitomo Electric Industries: Large Japanese industrial conglomerate with grid-scale energy storage, power electronics, and EV charging infrastructure offerings. Comparable as a Japanese-headquartered incumbent in the same product categories as PowerX.

Emerging players

• Tritium: Specialist DC fast charger manufacturer with a focus on compact, ruggedized high-power chargers, including battery-buffered variants. Comparable niche to PowerX's battery-integrated Hypercharger targeting Japan and global markets.
• Nuvve Holding Corp. Pioneer in vehicle-to-grid (V2G) aggregation and bidirectional EV charging software, addressing a similar market segment to PowerX's managed EV charging and bidirectional capabilities.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/@power-x
• LinkedInlinkedin.com/company/powerx-inc

Compliance4 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles7 records

Subsidiaries2 records

Funding overview

Funding rounds6 records

Investors28 records

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 PowerX