
Green Transformation
FUSO's Green Transformation: Bringing Optimized Solutions for each Community and the Planet
Green transformation (GX) is gaining attention as the key to achieving carbon neutrality. FUSO, as a general water infrastructure company, offers a great deal in this area, as meticulousness is demanded in simultaneously dynamic community-wide initiatives and community coexistence. In order to ensure a future for the global environment, we will engage in GX that harnesses community engagement in a unique approach to sustainability that is firmly rooted in people and local communities.
- FUSO's Strengths
- FUSO's Small-scale Hydroelectric Power Generation Systems
- Nitrogen Circulation Technology Using Ammonia Adsorbent
- Utilizing Local Biomass in Sewage Treatment Facilities
- Wastewater Treatment in Land-Based Aquaculture
- Total Renewable Energy Solutions through the Comprehensive Capabilities of the FUSO Group
- FUSO's Sustainability Initiatives
FUSO's Strengths

Initiatives That Only a Water Professional Can Undertake
In this unique area that only FUSO can handle, we are working on sustainable energy supply in the field of hydroelectric power generation using natural energy.

Harnessing Research for Technological Development Capabilities and Launching Businesses
FUSO's technology strategy consists of two components: Maintaining and improving specialized technologies with competitiveness and superiority, technological development meeting market needs.

Comprehensive Capabilities of the FUSO Group
We will promote GX to make the most of the region with solutions created by synergy through collaboration with group companies.
FUSO's Small-scale Hydroelectric Power Generation Systems
In addition to our experience in the water business, FUSO, together with its group companies that handle hydroelectric power generation systems, provides a one-stop service that includes planning, engineering, consulting, procurement of materials and equipment, construction of facilities, and installation of water pipelines.


Our Works
Nitrogen Circulation Technology Using Ammonia Adsorbent

In-house Manufactured Prussian Blue-based Adsorbent
Though nitrogen is essential to Earth's ecosystems, it is also a source of environmental pollution. To solve this global issue, FUSO is working to create a nitrogen circulation system that uses highly-selective ammonia adsorbent to recover low-concentration nitrogen compounds in exhaust gas and wastewater and convert them into fuel and resources. The Prussian Blue (PB) adsorbent we manufacture in-house offers usefulness in a variety of applications, especially for the selective adsorption of cesium and ammonia.
Utilizing Local Biomass in Sewage Treatment Facilities

Energy Circulation System through Effective Use of Local Resources
Digestion gas, a renewable energy source, is a biofuel composed mainly of methane derived from organic matter in sewage sludge. Electricity generated in this system uses digestion gas as fuel, collected from sewage treatment facilities. Methane, a greenhouse gas second only to carbon dioxide in how much it drives global warming/boiling, is safely recovered and converted into useful electricity. This mechanism offers the promise of a dual-benefit resource-recycling power generation that not only saves energy but also prevents global warming/boiling. At FUSO, we support greater utilization of local biomass in sewage treatment facilities, integrating treatment of organic waste, human waste, septic tank sludge, and livestock waste to utilize these without wastefulness. This is how we create efficient energy circulation systems.

Our Works
This facility purchases a portion of the digestion gas generated in the sludge treatment process at the Harada Treatment Plant, generates and sells electricity (via the feed-in tariff, or FIT, system) at a digestion gas power generation facility built by FUSO, and also supplies hot water.
Wastewater Treatment in Land-Based Aquaculture

Efforts to Address the Depletion of Fishery Resources
Amid rising demand for marine resources due to global population growth, concerns about depletion due to overfishing have made aquaculture a more critical option to shore up resources. However, there is a limit to the number of suitable locations for sea-based aquaculture, and marine pollution also presents a problem. Attention has therefore increasingly focused on land-based aquaculture, conducted in an environment artificially created on land. FUSO is committed to the sustainable and stable supply of marine products through wastewater treatment in land-based aquaculture of fish and shellfish.
Land-based Shrimp Farming
FUSO GROUP HOLDINGS has invested in HANERU KATSURAO LIG Co.,Ltd., which has one of the largest shrimp farming facilities in Japan.
Visit the HANERU KATSURAO LIG Co.,Ltd., website
Total Renewable Energy Solutions through the Comprehensive Capabilities of the FUSO Group
Together with four group companies, we design, construct, maintain, and generate power from photovoltaic, hydroelectric (including small hydro and micro hydro), and biogas power generation facilities, as well as aggregate and sell electric power. We help to bring about sustainable local communities by proposing one-stop solutions for renewable energy.


JPN ENERGY specializes in the development of solar power generation and the construction and sale of low-cost housing. By providing total solutions that contribute to the spread of renewable energy and the creation of low-cost, disaster-resistant housing, this company aims to bring about sustainable communities.

RE100 Electric Power offers a one-stop service from renewable energy consulting to power supply and aggregation. It works to solve social and environmental issues while pursuing the potential of renewable energy.

As a hydroelectric power generation solutions company, FUSO Hydro Power Solutions provides integrated design, construction, sales, and maintenance of hydroelectric power generation facilities. It has also formed a capital and business alliance with ZECO, a company that consistently provides high-performance, high-quality water turbines to the entire world. This alliance has contributed to the maintenance and development of hydroelectric power generation facilities in Japan.

FUSO ENERGY, in addition to retailing electric power, offers consulting, design, construction, operation, and management of private power generation for municipalities and companies. It provides solutions that support the stable supply of power and the expansion of energy-saving environments through the spread of renewable energy.
FUSO's Sustainability Initiatives

Responsibility as a Water Professional
As the importance of sustainability grows, we will continue to further elevate our aspirations, diligently and sincerely tackling emerging environmental issues and changes in people's values.