Controlling customer CO2 emissions | Response to climate change | Environment | Sustainability

Promotion of high-efficiency gas equipment

We seek to contribute to the reduction of CO₂ emissions and the prevention of global warming through the promotion of high-efficiency gas equipment, proposing and selling efficient products with high added value. Aiming to meet our customers' diverse needs and preferences, these products include latent heat recovery-type high efficiency water heaters for domestic use called “ECO-JOZU,” which reduce CO₂ emissions by approximately 16% compared to conventional heaters, as well as “ECO ONE,” a hybrid hot water and heating system that combines a heat pump water heater with “ECO-JOZU,” achieving an approximately 40% reduction in CO₂ emissions.

Promotion of residential-use fuel cell “ENE-FARM”

For the promotion of the new energy solutions business, we are working to improve energy efficiency through a local power production and consumption approach centered on the best mix of energy. We are currently focusing on the fact that the main forms of power supply have low energy efficiency in terms of transmission loss and waste heat loss, promoting the rollout of “ENE-FARM,” a distributed power generation system installed in each consumption area. “ENE-FARM” is an LPG-based system, and we are mainly concentrating on popularizing it among new general households by partnering with home construction companies. Through these efforts, we will continue to promote the spread of distributed energy systems.

Expanding sales of solar power generation systems

Solar power is a carbon-free source of energy that does not emit greenhouse gases. Consumers do not need to pay consumption charges and can reduce the amount of electricity they purchase from power companies by using the power generated for their own household. Unused energy can then be sold to power companies. It is also highly economic, as once installed, power can continue to be generated as long as there is sunlight. Since Japan often faces natural disasters such as earthquakes, typhoons, and severe rainstorms, solar represents an effective source of emergency power in the event of power outages. We will also promote the spread of energy creation/storage system through the installation of storage batteries together with solar power generation systems.

Expanding the energy solutions business

We save energy at a wide range of facilities including plants, commercial facilities, and hospitals through the selection and maintenance of cogeneration systems and the proposal of energy-saving equipment. We also work to realize comprehensive energy management centered on electricity, thermal, measurement, control, power storage, and power generation. In addition to reducing running costs with our energy solutions, we are expanding business that helps the global environment. Committed to the achievement of a sustainable society, we provide solutions for the future.

Development of renewable energy sources

Renewable energy is an important form of domestic energy that does not emit greenhouse gases and can be produced within Japan. It harnesses the natural environment and is also a vital power source for the development and maintenance of society. In addition to the power plants we already possess, we are also developing renewable energy sources such as solar, wind, and biomass.

Provision of the Mitsuuroko Green Plan

Since the “Paris Agreement” was adopted in December 2015, the awareness of consumers and investors toward climate change has increased rapidly, and corporate efforts toward reducing greenhouse gas emissions are being viewed as important. By providing the “Mitsuuroko Green Plan” to customers who are working to reduce their CO₂ emissions, we will contribute to a low-carbon society and meet the needs of our customers.

What is the Mitsuuroko Green Plan...

The Mitsuuroko Green Plan uses renewable energy supplied by Mitsuuroko Green Energy Co., Ltd., as well as non-fossil fuel certificates. It offers CO₂ emission factors tailored for customers’ needs in two main options.

* It not only reduces electricity charges, but also enables customers to reduce their CO₂ emission factors.
* The plan is available Japan-wide excluding Okinawa and some remote islands.

Benefits of the Mitsuuroko Green Plan

Lead improvement of corporate image.
Customers can report lower emissions in the System for Greenhouse Gas Emissions Calculation, Reporting, and Disclosure based on the Act on Promotion of Global Warming Countermeasures (Global Warming Countermeasures Act).
Customers can report lower emissions in a CDP report, which is noticed by corporate investors.
Customers using our extra-high-voltage power service or high-voltage power service can view the balance between costs, emission factors, and renewable energy introduction ratio, and select a plan.
Customers using our low voltage power service can choose between the 100% renewable energy plan and the 0.00 emission factor plan.

Renewable Energy Ratio Plan

CO₂ Emission Reduction Plan

Key examples

Provision of electricity through off-site corporate PPA

In April 2021, Mitsuuroko Green Energy Co., Ltd. provided the “Mitsuuroko Green Plan,” which adheres to the “RE100*1,” global initiative on renewable energy, to the facilities of “RE100” member MARUI GROUP CO., LTD.
As a new initiative, in December 2022, it was decided that Mitsuuroko Green Energy Co., Ltd., MARUI CO., LTD., and JA MITSUI ENERGY SOLUTIONS, LTD. will jointly work to establish an off-site corporate PPA*2.
In this business, Mitsuuroko Green Energy Co., Ltd. supplies electricity derived from renewable energy sources generated at five solar power plants newly developed by JA MITSUI ENERGY SOLUTIONS, LTD. in the service area of Tokyo Electric Power Company, together with RE100-compliant electricity, to two facilities of MARUI CO., LTD. in Tokyo. The business has been selected for the “Subsidy for Promotion of Customer-led Introduction of Solar Power Generation (FY2022 budget),” a publicly offered program by the Ministry of Economy, Trade and Industry.

“RE100” is a global initiative aimed at preventing global warming. It is led by The Climate Group (international NGO working to reduce greenhouse gas emissions) in partnership with the CDP (international NGO promoting disclosures on environmental problems). Member companies pledge and publicly announce that they will use 100% renewable energy for the electricity used in their business activities by 2050 at the latest.
Corporate PPA is a method in which consumers procure renewable energy power from a power generation business operator for a long period of time and at a fixed price.

Provision of electricity through off-site corporate PPA

Provision of the Mitsuuroko Green Plan to construction companies

Mitsuuroko Green Energy Co., Ltd. has partnered with a construction company and started to provide new construction sites with the Mitsuuroko Green Plan, a CO₂ emission reduction plan that contributes to the measures against global warming.
Many construction companies are also working on sustainability initiatives, and in response to requests for electricity to be used at new construction sites, we decided to introduce the Mitsuuroko Green Plan supplied by Mitsuuroko Green Energy Co., Ltd.