VISION01 An Energy-saving Society

VISION01 An Energy-saving Society


Expanding the possibilities of energy. Using affordable and safe power, electricity and heat, whenever necessary and only as much as necessary.

Our Products, Services and Support for VISION 01

Energy Management System

We contribute to the optimization for facility-wide energy use via the fuel efficiency diagnostics and analysis of energy operational status. This is how we help to achieve energy efficiency.

Diesel Engines for Industrial Use

We develop ultra-high fuel efficient, high-power engines to expand our industrial diesel engine sector. These engines are also compatible with the latest European Stage V standards.

Aligned SDGs


Social challenges to be solved related to VISION 01

Contributing Through Business


Aligned SDGs

Aiming to utilize hydrogen energy on ships, we have started demonstration test of a marine fuel cell system on our boat.


The International Maritime Organization has adopted a strategy on the reduction of greenhouse gas emissions to achieve zero emissions by the end of this century, and other regulations are being tightened worldwide in the marine industry. The Ministry of Economy, Trade and Industry formulated the Green Growth Strategy Through Achieving Carbon Neutrality in 2050, which highlights the technology to develop ships powered by carbon free fuels such as hydrogen and ammonia. The development of energy and power sources with low environmental impact is attracting more attention.


Test boat with maritime fuel cell system

To innovate hydrogen powertrains, Yanmar Power Technology has started its own demonstration tests on a Yanmar boat equipped with a marine fuel cell system that has been built with fuel cell units and other vital components.

Marine fuel cell systems were designed to meet safety requirements specific for the ships. We also developed power management system including in-house lithium-ion batteries and propulsion motors. This technology will be applied to various electrified products in the future.

Our advanced technologies and solutions in FRP molding and hull assembly are fully utilized to shut out the electric noise that interfere the high-power devices and we redesigned the deck to protect hydrogen tanks from shock.

This is the first ship in Japan to be recognized to comply with the safety guidelines for fuel cell ships set by the Ministry of Land, Infrastructure, Transport and Tourism. We are currently analyzing the fuel cell system, identifying issues specific to ships, and formulating and verifying optimal countermeasures in Kunisaki, Oita. We strive to commercialize the fuel cell engines by 2023 and will advance the technology for a higher-power system that connects multiple units of fuel cells for larger ships.

Test boat with maritime fuel cell system
Cockpit of the test boat
Images of 300kW marine hydrogen fuel cell batteries

Provided value

By making hydrogen energy which emits no CO2 available on ships, Yanmar contributes to realizing carbon neutrality by 2050.


Aligned SDGs

Small ORC waste heat generator using untapped energy from hot springs, introduced on a trial basis in Suwa, Nagano.


The city of Suwa in Nagano has long been involved in the business of supplying thermal water to homes and public bathhouses in the area by utilizing its rich geothermal resources. However, the number of contracted clients was declining year by year. We were looking for ways to give back to the community through new ways to utilize the hot spring.


Small ORC waste heat generator

Yanmar Energy System has continued to create products that enrich people's lives yet lower environmental impact with higher power generation efficiency, and in recent years, we also have been developing energy systems for a sustainable future as a total energy solution. As part of this project, we developed a small packaged organic Rankine cycle (ORC) generator of less than 10kW power output. Packaging the system able us to install one or multiple generators easily allowing us to propose the optimal capacity of power generation for each client's request.

The city of Suwa saw the potential in our products and efforts and we work together to introduce a small ORC generator using waste heat from hot springs on a trial basis. By using a solvent with a lower boiling point than water, ORC generators can use low-temperature steam and hot water for power generation which are attracting attention as an effective way to use geothermal energy such as hot springs.

Although ORC generators have been developed in many countries, there are challenges that limit the possibility of clients to implement such a large-scale system to utilize geothermal heat, and the cost of individual solutions is too high.

The demonstration test has been conducted for one year from August 2020 at the Ayamemoto Spa in Suwa. The power generation output is 8kW, and the annual power generation is expected to be approximately 70,000kWh. This product can generate power from relatively low-temperature waste heat (70 to 95°C) and it comes with the necessary equipment for heat recovery and grid connection in a compact package.

It is an ultra-compact generator of less than 10kW power output, but it can be connected to other generators to provide flexible capacity.

Mechanism of a small ORC waste heat generator system using hot spring

Provided value

By utilizing untapped waste heat from factories and hot springs, CO2 emissions can be reduced compared to energy derived from fossil fuels, thus contributing to the mitigation of climate change. Since there are many small heat sources in Japan, we can provide our customers with the best socially and economically viable solutions using these sources.