Harnessing Nature's Power for Tomorrow.
TOUCHI INTERNATIONAL believes in the potential of renewable energy and continues to challenge itself to realize a sustainable society with technology and passion. With a trinity clean energy portfolio of solar, wind, and batteries, we aim to pass on a prosperous Earth to the next generation.
Business Overview
2014Since launching our solar power generation business in 2014, TOUCHI INTERNATIONAL has advanced steadily in the renewable energy field. From operating a mega solar power plant in Nagasaki Prefecture to entering wind power generation and completing a grid-connected battery storage facility, we have built a diversified clean energy portfolio.
From Generation to Storage: An Integrated Energy Infrastructure
At the Nagasaki Power Plant, we employ high-efficiency systems from OMRON Corporation, maintaining an equipment uptime rate of 99.5%. In 2019, we entered the wind power generation business, establishing a stable power generation system unaffected by weather. In 2025, a state-of-the-art grid-connected battery storage facility was completed in Kato City, Hyogo Prefecture, completing our integrated system of generation, storage, and supply.
Trinity of Clean Energy
Solar, Wind, and Battery Storage – An integrated clean energy portfolio built on three pillars.
Solar Power Generation
Solar Power GenerationTo leverage Japan's abundant sunlight, we deploy high-efficiency panels in carefully selected locations. Led by the Nagasaki Power Plant, in combination with OMRON Corporation's power conditioners, we achieve industry-leading uptime rates.
Wind Power Generation
Wind Power GenerationWe entered the wind power generation business in 2019. By introducing turbines optimized for Japan's wind conditions, we achieve stable power generation independent of sunlight. Synergizing with solar power, we mitigate weather-related risks.
Battery Storage System
Battery Energy StorageIn September 2025, a state-of-the-art grid-connected battery storage facility was completed in Kato City, Hyogo Prefecture. By introducing large-scale lithium-ion batteries, we achieve stable energy supply and load leveling of the power grid utilizing the FIP system.
Environmental Contribution
The spread of renewable energy changes the future of the global environment.
The environmental value created by TOUCHI INTERNATIONAL's initiatives.
Grid-Connected Battery Storage Facility
in Kato City, Hyogo Prefecture
Completed in September 2025. A next-generation large-scale storage infrastructure that balances stable supply of renewable energy and load leveling of the power grid. Through an innovative business model utilizing the FIP system, we achieve long-term profit stability and environmental contribution. The large-scale lithium-ion battery storage system instantly responds to fluctuations in power demand, supporting the regional energy infrastructure.
Nagasaki Power Plant
OMRON Collaboration Project
The Nagasaki Power Plant employs high-efficiency solar panels and power conditioners from OMRON Corporation. Thanks to its proprietary Maximum Power Point Tracking (MPPT) control technology, it maintains optimal power generation efficiency even with changes in sunlight conditions. Leveraging abundant sunlight, it maintains high uptime rates.
- High-Efficiency Power Conditioner
- MPPT Optimal Control Technology
- 24/7/365 Remote Monitoring
- Preventive Maintenance System
Technology and Innovation
Real-time Monitoring
24/7/365 Remote Monitoring
A monitoring center that centrally manages all power plants and storage facilities. It monitors power generation and equipment status in real-time, immediately detecting abnormalities. Through IoT sensors and AI analysis, it achieves advanced predictive maintenance.
Maximum Power Point Tracking (MPPT) Control
The advanced MPPT control algorithm of OMRON Corporation's power conditioners constantly tracks the optimal operating point according to changes in sunlight and temperature, maximizing the panel's potential.
FIP System Optimization Control
At grid-connected battery storage facilities, it predicts price fluctuations in the power market and automatically generates optimal charging and discharging schedules. It is a next-generation energy management system that data-drives profit maximization under the FIP system.
Journey and Future
Start of Solar Power Generation Business
Started operation of the Nagasaki Power Plant. Through technical collaboration with OMRON Corporation, we built a high-efficiency solar power generation system. We marked the first step into the renewable energy field.
Entry into Wind Power Generation Business
To expand our energy portfolio, we newly entered the wind power generation business. By synergizing with solar power, we established a stable power generation system independent of weather.
Announcement of Battery Storage Business Plan
Announced the construction plan for a grid-connected battery storage facility in Kato City, Hyogo Prefecture. Through a new business model utilizing the FIP system, we declared the next leap in our energy business.
Completion of Grid-Connected Battery Storage Facility
A state-of-the-art grid-connected battery storage facility was completed in Kato City, Hyogo Prefecture. We began full-fledged contribution to stabilizing the power grid through large-scale lithium-ion battery storage systems.
Further Expansion of Renewable Energy Business
We will continue our challenge towards realizing a sustainable society, envisioning expansion of power generation capacity, promotion of new storage projects, and expansion into new energy sources such as offshore wind power.
Achievements in Numbers
Inquiries Regarding Renewable Energy Business
For questions, consultations, document requests, etc. regarding our business,
please feel free to contact us via the inquiry form.