Edison Power

What Edison Power does

Edison Power Co., Ltd. (株式会社エジソンパワー) is a privately held Japanese energy systems integrator founded in 1991 and headquartered at a lithium battery manufacturing facility in Kisarazu Akademia Park, Chiba Prefecture. The company designs, manufactures, and sells industrial and grid-scale lithium iron phosphate (LFP) battery storage systems — most notably the EPESS-165G (165 kWh industrial unit), the container-type Mega Battery (2.7 MWh grid-scale system launched in 2023), and a CHAdeMO-compatible V2H system built around a proprietary bidirectional DC-DC converter — together with a proprietary Energy Management System (EMS) that optimises battery capacity and power conditioner output to customer specifications. Under a 2023 strategic partnership with Gotion High-Tech (the world's #3 LFP cell manufacturer by 2022 shipments), Edison Power sources LFP cells for integration into systems manufactured in-house at Kisarazu, which itself runs on 100% renewable energy via an on-site 2 MW solar array.

The company serves three primary customer segments: grid operators and utilities (utility-scale balancing, FIP/aggregation, peak management), industrial and commercial enterprises (self-consumption, peak shaving, disaster backup), and Japanese local governments and municipalities (carbon neutrality, microgrid, and disaster-resilience projects). Revenue is generated through one-time hardware sales of battery systems (direct enterprise sales and e-commerce for smaller units), construction and engineering services under its Chiba Prefecture general and specialised construction permits, electricity sales from grid-connected solar and biomass generation, and EMS/solution revenue. GTM is hybrid: enterprise field sales and government project participation for large deals, an e-commerce shop for portable and SMB products, and event-driven demand generation through Smart Energy Week and earned media in Nikkei BP and the Shın Energy Shimbun.

Founded with JPY 10 million in capital and grown to JPY 97.5 million through retained earnings, Edison Power remains a small (11-50 employees), founder-led business under CEO Toshimasa Yamada (a former MITI official, BCG consultant, and Fulbright scholar at Harvard Business School). Its strategic positioning hinges on combining in-house Japanese manufacturing quality, certified installation capacity (multiple first-class electrical engineering managers and licensed electricians), the Gotion LFP supply partnership, and a track record of government-subsidised demonstration projects to compete for the emerging Japanese utility-scale and microgrid storage market.

Name

Edison Power

Legal name

株式会社エジソンパワー

Website

https://edisonpower.co.jp

Company type

Private

Founded year

1991

Operating status

Operating

Headcount range

11–50 employees

Short description

Edison Power designs, manufactures, and sells industrial and grid-scale lithium iron phosphate battery storage systems in Japan, including the EPESS-165G (165 kWh), the 2.7 MWh Mega Battery container, and a V2H system, serving utilities, commercial/industrial customers, and municipalities.

Ownership category

akta.pro rank

Product category

Industrial Battery Storage Systems

NAICS

Battery Manufacturing (33591), Battery Manufacturing (335910), Switchgear and Switchboard Apparatus Manufacturing (335313)

SIC

Electronic & Other Electrical Equipment (No Computer Equip) (3600), Power, Distribution & Specialty Transformers (3612)

akta.pro primary industry

Battery Modules & Packs (Industrial/Commercial pack assembly) (IMAGAHAB)

akta.pro secondary industries

Battery Management Systems (BMS) & Battery Electronics (IMAGAHAC), Energy Storage Software & Controls (EMS, monitoring, optimization, cybersecurity) (IMAGAHAJ), Battery Management Systems (BMS) & Pack Electronics Manufacturing (EUAFABAJ), Battery Recycling & Materials Recovery (Li-ion, LFP, Flow, Lead-Acid) (EUAMALAE)

Keywords

• Industrial battery storage
• Lithium battery systems
• Grid scale energy storage
• Vehicle to home systems
• Renewable energy generation

Headquarters

HQ city

Chuo

HQ country

Japan

HQ region

Asia

Offices4 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Electric Power Generation and Management: Solar power generation and biomass power generation, including operation and management of renewable energy plants. Revenue is generated from electricity sales through grid-connected solar farms and biomass facilities.
2. Construction and Engineering Services: Civil and building engineering design, construction, and contracting services. Edison Power holds both general and specific construction permits for electrical and civil works.
3. Lithium Battery Development, Manufacturing and Sales: Development, manufacturing, and sale of industrial-scale lithium battery systems (EPESS series, Mega Battery). Products are sold directly via the company shop and through direct sales engagement, with revenue from one-time hardware sales and associated installation services.
4. Energy Management System (EMS) and Solutions: Proprietary EMS and integrated energy solutions sold as part of battery system packages or as standalone software/systems, contributing to overall solution revenue.

Pricing tiers

Go-to-market motion3 records

Distribution channels3 records

Marketing channels4 records

Core offering

Edison Power designs, manufactures, and sells industrial-scale lithium iron phosphate (LFP) battery storage systems, including the EPESS-165G (165 kWh) industrial battery and the Mega Battery 2.7 MWh container-type grid storage system, along with Vehicle-to-Home (V2H) systems using proprietary bidirectional DC-DC converters. The company also operates solar and biomass power generation facilities and provides related construction and engineering services, with a proprietary Energy Management System (EMS) that optimises battery and power conditioner configurations for customer-specific requirements.

Product overview

Edison Power is an energy solution company specializing in large-scale lithium battery storage systems. The product portfolio centers on the EPESS-165G industrial battery (165 kWh) for commercial and industrial self-consumption, peak shaving, and backup applications, and the Mega Battery 2.7 MWh container-type system for grid-scale energy storage. The company offers V2H systems combining proprietary bidirectional DC-DC converters with industrial batteries supporting CHAdeMO standard, and a proprietary Energy Management System (EMS) for intelligent battery and power optimization. Products are manufactured at the Kisarazu factory in Chiba Prefecture, utilizing Gotion LFP battery cells. The Industrial Battery Development & Manufacturing Center.com platform supports sales and inquiries for the product lineup.

Differentiator

Problem solved

Functional benefit

Brands

• EPESS-165G: Industrial lithium battery system with 165kWh capacity, featuring bidirectional DC-DC converter technology for V2H applications
• メガバッテリー (Mega Battery)
• EP Series

Products and services

• EPESS-165G Industrial Battery System A 165 kWh industrial-scale lithium battery storage system featuring Gotion LFP cells, supporting both DC and AC link configurations compatible with any solar panel manufacturer, with 5ms automatic grid-to-battery switching during outages, integrated surge protection, and multiple operation modes (self-consumption, peak shaving, backup, off-grid). Targeted at commercial and industrial facilities seeking on-site power storage, self-consumption optimisation, and disaster backup.
• Mega Battery 2.7 MWh Container-Type Grid Storage System A 2.7 MWh containerised grid-scale battery storage system using Gotion LFP cells, designed for utility-scale energy storage, grid stabilisation, and renewable energy integration. Targeted at electric utilities, grid operators, and large industrial customers for applications including peak load management, energy arbitrage, and ancillary market participation.
• V2H System with Bidirectional DC-DC Converter A Vehicle-to-Home (V2H) system that combines a CHAdeMO-compatible bidirectional DC-DC converter with large industrial batteries, enabling electric vehicles to serve as energy storage resources. Supports emergency power supply, peak shaving, off-grid operation, and portable power applications for residential, commercial, and industrial users.
• EP Series Home Battery A home-use lithium battery series for residential solar storage and backup power, originally distributed nationwide through the Yamada Denki consumer electronics retail network. Targeted at individual households seeking residential solar self-consumption, backup power, and energy cost reduction.
• Portable Battery Units (E-commerce) Portable lithium battery units (including an 8 kWh portable model) and selected industrial battery products available for direct purchase through Edison Power's e-commerce storefront. Targeted at individual consumers and small businesses needing portable or backup power.
• Solar Power Generation Operation of grid-connected solar photovoltaic power generation facilities, including a 2 MW mega solar plant on-site at the Kisarazu factory and school rooftop solar installations (approximately 30 schools nationwide and 12 Chiba City schools). Revenue is generated from electricity sales through grid-connected solar farms.
• Biomass Power Generation Operation of biomass power generation facilities using woody biomass as feedstock, leveraging bio-gas power generation technology acquired under exclusive Japanese manufacturing and sales rights from Güssing Renewable Energy (Austria). Revenue is generated from electricity sales through biomass generation facilities.
• Construction and Engineering Services Civil and building engineering design, construction, and contracting services. Edison Power holds both general and specialised construction permits from Chiba Prefecture for electrical and civil works, enabling turnkey installation of battery systems and renewable energy infrastructure. Targeted at enterprise, government, and utility customers requiring EPC services.

Quantifiable outcome

• 5ms automatic switchover from commercial power to battery during outages
• +3 more outcomes

Named customers4 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

Feature7 records

Partnerships

Four partnerships are on record, tiered core and minor.

• Gotion High-Tech Co., Ltd.coreStrategic or Co-development Partner · 15 March 2023Edison Power entered a strategic partnership with Gotion — the world's #3 LFP battery manufacturer by 2022 global shipments — for the development and production of large-scale battery storage systems. The partnership includes the launch of the 2.7 MWh 'Mega Battery' container-type grid storage system, with Gotion committed to fully supporting Edison Power's entry into the Japanese industrial battery market. The agreement was formalised at Smart Energy Week / Battery Expo 2023 in Tokyo.
• JXTG Energy Corporation (JXTGエネルギー株式会社)minorStrategic or Co-development Partner · 5 November 2019Edison Power, together with JXTG Energy Corporation and Toyama University, was commissioned by NEDO (New Energy and Industrial Technology Development Organization) to conduct a feasibility study on the supply chain for bio-jet fuel manufacturing.
• Phoenix Motorcars — USAminorOEM/ Whitelabel/ Licensing Partner · 1 January 2007Phoenix Motorcars of the United States engaged Edison Power for EV battery pack production for use in their electric vehicles.
• STS CorporationminorStrategic or Co-development Partner · 1 January 2006Joint development project with STS Corporation for EV truck development, producing the Ekoron electric truck announced in 2007.

Scale indicators5 records

Recent moves8 records

Expansion highlights6 records

Direct peers

• Gotion High-Tech: Strategic partner and cell supplier to Edison Power. Gotion is the world's #3 LFP battery manufacturer by 2022 global shipments and co-develops the 2.7 MWh Mega Battery container system. Comparable as a grid-scale LFP battery manufacturer targeting the Japanese industrial and utility storage market.
• NGK Insulators: Japanese manufacturer with established grid-scale energy storage (NAS batteries) supplying utilities and industrial customers domestically. Comparable to Edison Power as a Japan-based provider of utility-scale and industrial battery storage systems serving grid operators and C&I customers.

Broad incumbents

• Sumitomo Electric Industries: Diversified Japanese industrial conglomerate with battery storage, redox flow, and energy management offerings targeting utility and industrial customers. Comparable to Edison Power's EPESS and Mega Battery product lines serving Japanese grid and C&I segments.
• CATL: World's largest battery manufacturer with significant grid-scale LFP storage offerings. Comparable as a cell and pack supplier, and an indirect competitor to Edison Power's assembled systems through OEM and integrator partners.
• Samsung SDI: Major global lithium battery manufacturer with containerised ESS product line and LFP/NMC offerings. Directly comparable as a competitor in industrial and grid-scale storage markets Edison Power targets with EPESS and Mega Battery systems.
• Tesla Energy (Megapack): Tesla's Megapack is the dominant global containerised grid-scale lithium battery storage product, directly comparable to Edison Power's 2.7 MWh Mega Battery. Both target utility-scale and large commercial deployments with integrated LFP-based systems.
• Fluence Energy: Fluence is a leading global grid-scale energy storage integrator with deep utility and renewable developer relationships. Comparable as a competitor for utility-scale battery storage tenders and an adjacent provider of energy management software (Mosaic) analogous to Edison Power's proprietary EMS.
• BYD Energy Storage: BYD offers containerised battery storage systems and is one of the largest global LFP cell producers. Directly comparable to Edison Power's Mega Battery at the grid scale and competes on cost and supply chain integration in Asian markets.

Regional players

• TMEIC (Toshiba Mitsubishi-Electric Industrial Systems): Japanese power electronics and energy systems provider serving industrial and utility customers with PCS, inverters, and storage integration. Comparable as a regional supplier of power conversion and battery integration solutions adjacent to Edison Power's EMS and converter technology.
• Yokogawa Electric: Japanese industrial controls and energy management company with software platforms for power and battery asset optimisation. Comparable to the EMS software component of Edison Power's offering, and an adjacent regional player serving utilities and industrial customers in Japan.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights6 records

Customer concentration

Compliance8 records

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 Edison Power