JAPAN PAVILION COP28

TOPICS ACTIONS

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  • TOPICS（Areas for decarbonized society initiatives）

Introducing decarbonization technologies and efforts that support the realization of carbon neutrality by 2050 , global decarbonization and climate change adaptation which are the long-term goals for the climate change measures in Japan.

Detailed Category

Hokkaido Block

Ishikari City, Hokkaido

Redesigning the area through Local production/use of renewable energy and decarbonization

Overall picture of initiatives

In the Ishikari Bay New Port Area, an industrial center in the Sapporo region, a specified electricity transmission and distribution project with solar power generation systems and local wood biomass power generation equipment supplies renewable energy power to the data center cluster that is expected to grow in the area, as well as to surrounding facilities. By supplying all-renewable power to multiple data centers where power consumption is high, the city further attracts industries utilizing its superior renewable energy potential, as it also decarbonizes the area. A microgrid is constructed for the group of public facilities at the center of Ishikari City, achieving zero CO2 emissions and providing disaster readiness functions.

Main effects expected from the initiatives
  1. Through maximizing the use of local renewable energy, the city is attracting data centers and other industries with local production and consumption of renewable energy, and is carrying out new establishment of more renewable energy consumers.
  2. The city is working to achieve decarbonization of the group of public facilities centering on the city government offices, and also achieve decarbonization of official vehicles, while also creating resilient government functions.
  3. It is ensuring local coordination capabilities by installing large-size storage batteries and introducing hydrogen production for storage and equalization of electric power, aiming to expand the use of renewable energy in the area.
  4. It is aiming to achieve local decarbonization and public transportation through sector coupling, working to revitalize the region.
Key initiatives on decarbonising electric power in the consumer sector
  1. Supply of electricity generated by photovoltaic power facilities (1,800 kW) planned for installation in the Ishikari Bay New Port area and by woody biomass power used as a base-load power source to new data centres planned for construction within the area and a nearby public facility (gymnasium) via specified electricity transmission and distribution businesses.
  2. Gradual increase in renewable energy supply capacity with the development of industrial clusters, while subsequently accommodating both new and existing power supply sources in nearby areas with feed-in tariff periods that have ended. Promotion of expanded area regulation functions to integrate natural variable renewable energy sources, such as hydrogen, large storage batteries, and demand response facilities.
  3. Establishment of methods to promote the installation and in-house consumption of electricity generated from photovoltaic power equipment in five public facilities and to supply power from the Ishikari Bay New Port area to bridge any shortfall. Increase in area self-sufficiency rates in renewable energy in the future with the achievement of power interchange between the five public facilities through the installation of storage batteries and other equipment.
  4. Improvement in overall efficiency in renewable energy supply, including the development of a green hydrogen supply chain with local renewable energy and the use of thermal energy generated by woody biomass power plants in adjacent areas.
Key initiatives on decarbonising electric power in the consumer sector
  1. Use of vehicle-mounted storage batteries for disaster prevention together with reductions in greenhouse gas emissions from the transport sector through the conversion of official vehicles to EVs and the implementation of car sharing initiatives.
  2. Promotion of the local production and consumption of renewable energy combined with how it can be applied to solve local issues by examining the feasibility of wide-area transmission and new forms of public transport using renewable energy.

Tohoku Block

Sai Village, Aomori Prefecture

The smallest and most charming fishing village in Japan challenging itself to achieve zero carbon emissions

Overall picture of initiatives

Sai Energy Co., Ltd. (currently a vendor for Aomori Kenmin Energy Co., Ltd.), a company in which the village has also invested, decarbonizes the entire village area, and improves the resilience of the area by securing an independent, distributed power supply. For this purpose, it is expanding and introducing solar power generation and storage batteries for homes, private businesses, and other facilities in the village. It also utilizes small hydroelectric power generation and wind power generation. In cooperation with the Sai Village Fishery Cooperative, the village manufactures resin fuel from marine debris and supplies it to seafood processing factories for sustainable village development based on the primary industry of fishing.

Main effects expected from the initiatives
  1. By making effective use of coastal debris, the village is working to create new jobs in manufacturing of resin fuel pellets, and is aiming to increase the value of its carbon-free fishery products by introducing renewable energy at its seafood processing plants and decarbonizing the processing workplaces.
  2. Based on the characteristics of a fishing village composed of scattered settlements centered on each fishing port, the village is introducing solar power generation and storage batteries in order to secure an independent, distributed power supply and improve the resilience of the entire village area.
  3. While starting small as a vendor, Sai Energy is constructing relationships with consumers and gathering expertise, and after constructing its systems it will gradually expand its operations into the retail business and power generation business. It is developing the persons who will implement local energy production for local consumption, while reducing business risks.
Key initiatives on decarbonising electric power in the consumer sector
  1. Installation of storage batteries and photovoltaic power for self-consumption (2,905 kW) in private residences and businesses throughout the village.
  2. Supply of renewable electricity from small-scale hydropower (141 kW) using small rivers in the village and wind power (3,000 kW) installed by private companies to the village by Sai Energy Co., Ltd., which will be responsible for electricity retail operations in the future.
  3. Conversion of digital currency into points that can be used in shopping support systems to households with renewable energy systems installed and linked to the “AI (Love) Sai Board”, a tablet distributed to all households in the village.
Key initiatives on decarbonising electric power in the consumer sector
  1. Introduction of firewood boilers in public facilities and the use of resin fuel produced from marine litter and other materials that have washed ashore in boilers at seafood processing plants.
  2. Conversion of private vehicles of residents and businesses, school buses and official vehicles to EVs and the installation of charging stations.
  3. Installation of V2H at designated evacuation shelters (15 locations) to secure emergency power supply systems.

Kanto Block

Kawasaki City, Kanagawa Prefecture

Action for decarbonization by the city with the largest CO2 emissions, starting from the Mizonokuchi key transportation hub for Kawasaki City

Overall picture of initiatives

Private facilities (50 facilities operated by member companies of the Zero Carbon Action Mizonokuchi Committee: businesses, shops, warehouses, and 2 other facilities) in the area around the key transportation hub of Mizonokuchi) as well as all public facilities (1,067 facilities) are decarbonized through cooperation with a local energy company that will be established in FY 2023. For this purpose, solar power generating equipment and storage batteries are installed on the rooftops and other sections, in addition to utilizing existing and new solar power and power from refuse incineration. The same member companies will also introduce EVs, and all official government passenger cars will be changed to next-generation vehicles by FY 2030.

Main effects expected from the initiatives
  1. The city is revitalizing the local economy and improving the energy budget through development of power supplies and equipment investment, aiming for local production and local consumption of renewable energy. These efforts include the establishment of a local power company.
  2. In order to improve resilience when a disaster occurs, at the elementary and junior high schools that are designated as evacuation sites in case of disaster, storage batteries are being used as the power supply for purposes such as evacuation site operations and the telecommunication devices of evacuated residents.
  3. The city is promoting decarbonization of related group companies and small- and medium-sized enterprises in the city, starting with a project at a group of private facilities with powerful communication capabilities that includes Amazon Japan.
Key initiatives on decarbonising electric power in the consumer sector
  1. Installation of photovoltaic power generation equipment (4,947 kW), and introduction of storage batteries (including charging/discharging equipment) and EVs and BEMS in private facilities around Mizonokuchi station.
  2. Installation of photovoltaic power generation equipment (approx. 6,000 kW), use of existing and new waste-to-energy systems, conversion of lighting equipment to LED, and switch over to electricity produced completely from renewable energy to cover any shortfalls in public facilities.
  3. Aim of regional energy companies (scheduled to be established in 2023) to achieve cohesive area management with the use of photovoltaic power and storage battery facilities installed in public and private facilities.
Key initiatives on decarbonising electric power in the consumer sector
  1. Promotion of the installation of charging equipment/facilities in companies performing EV car sharing demonstrations and apartment complexes/shared housing, and EV car-sharing applications in company vehicles.
  2. Introduction of next-generation vehicles into all vehicle fleets used for official or governmental business by fiscal 2030.
  3. Expansion and intensification of SDGs activities in partnership with financial institutions.
  4. Development of PR, awareness raising and other activities in relation to decarbonisation leading areas in partnership with Amazon Japan.

Chubu Block

Komoro City, Nagano Prefecture

Everyone working together to create Zero Carbon Komoro – a good city for everyone

Overall picture of initiatives

The city is further developing its existing compact city program in order to achieve zero-carbon city development, together with the concentration of facilities in the “Urban Function Promotion Areas” that are prescribed in the Location Optimization Plan based on the Act on Special Measures Concerning Urban Renaissance. For this purpose, it will construct an integrated energy management system and local microgrid utilizing a diverse range of renewable energy including small hydroelectric power and biogas. It will also introduce an EV mobility system with 100% renewable energy. The local government, city residents, businesses, and others work together to create a circulation of local resources and economies. To accomplish this, the city promotes the introduction of biogas power generation using household and commercial garbage, as well as the use of existing sewage heat and other unutilized heat sources.

Main effects expected from the initiatives
  1. Together with the construction of urban function promotion facilities, the city is improving its energy usage and increasing resilience by constructing a local microgrid, aiming to improve the attractiveness of the city center area by creating a compact city that is safe, reliable, and highly convenient.
  2. Waste produced from households, food product manufacturing, and other sources is used effectively in biogas power generation, reducing the expense for waste treatment and providing a boost to the creation of new food product manufacturers.
Key initiatives on decarbonising electric power in the consumer sector
  1. Introduction of a variety of renewable energy sources, such as photovoltaic power (6,460 kW), small hydropower (252 kW), and biogas power (150 kW), adjustments to supply and demand with the use of thermal storage tanks, and round-the-clock monitoring by CEMS to augment energy use with VPPs.
  2. Construction of regional microgrids using private lines in areas where urban functions, such as city offices, medical and commercial facilities, are concentrated.
  3. Provision of financial mediation services in partnership with local financial institutions to renovate 180 existing houses to ZEHs.
Key initiatives on decarbonising electric power in the consumer sector
  1. Effective utilisation of unused area heat with the installation of additional heat pumps using sewage heat and the use of wastewater from hot spring facilities to heat agricultural facilities.
  2. Development of a regional decarbonised transportation network through the conversion of community buses and reservation-based, share-ride taxis to EVs and installing charging facilities in renewable energy power stations.
  3. Conversion of vehicles for official and governmental business to EVs for use as mobile storage batteries during disasters.

Kinki Block

Kyoto City

Zero-Carbon Old Capital Model for improving local area strength through Kyoto culture and decarbonizing lifestyles

Overall picture of initiatives

The city is constructing a model for zero-carbon conversion of cultural heritage sites. For this purpose, solar and other renewable energy equipment and storage batteries are installed at 100 cultural heritage sites including Fushimi Inari Shrine, Fujinomori Shrine, Daigoji Temple, and other local temples that are symbols of Kyoto culture. It will also construct a solar arcade in the shopping district, and promote improvements to the ZEH level including partial renovations of the living spaces in existing residences. The Kyoto Regional Renewable Energy Grid Council installs offsite solar power generation on unused city land and carries out energy management. It also returns a portion of electricity charges to cover activity expenses at temples, shrines, and shopping districts. The city also creates a ripple effect in other areas through the creation of zero-carbon school excursions that travel to decarbonized temples and shrines using EV taxis, and decarbonization of universities and other green human resource development facilities.

Main effects expected from the initiatives
  1. By introducing renewable energy equipment and storage batteries at temples, shrines, and other community sites, the city is improving its resilience and constructing a model for zero-carbon conversion of cultural heritage sites.
  2. Zero-carbon school excursions and decarbonization of universities and other human resource development facilities creates a ripple effect that spreads the programs to the areas where student travelers and university students come from.
  3. The Kyoto Regional Renewable Energy Grid Council is returning a portion of electricity charges to cover activity expenses at temples, shrines, and shopping districts, and is also working for local production and local consumption of renewable energy and regional revitalization.
Key initiatives on decarbonising electric power in the consumer sector
  1. Decarbonisation of cultural heritage sites (temples and shrines) by maximising the introduction of renewable energy equipment/facilities (2,078 kW), such as photovoltaic power, and storage batteries at these sites, and using innovation to work out locations where they can be installed, such as in parking lots and on the roofs of related facilities, refitting facilities with energy-efficient equipment, and procuring renewable energy.
  2. Development of solar arcades (560 m), and retrofitting buildings and other facilities with energy-efficient equipment in three shopping areas of Fushimi.
  3. Identification of demand for renovations and promotion of retrofits to improve ZEH levels in existing housing in partnership with the Provision of Quality Housing Stock Association (comprised of local construction companies and major housing manufacturers), and designing new next-generation ZEH+ blocks on the former site of Fushimi Technical High School.
  4. Establishment of the Kyoto Wide-area Renewable Energy Grid Partnership Council (made up of electric power operators, retail electricity providers and others), installation of off-site photovoltaic power (2,600 kW) on idle city-owned land, and energy management.
  5. Development of green human resources to drive the transition to decarbonisation and decarbonisation of Ritsumeikan University, Ryukoku University and other institutions that serve as centres for training these human resources.
Key initiatives on decarbonising electric power in the consumer sector
  1. Conversion of 738 taxis to EVs and Keihan Fushimi-Inari Station to a zero-carbon station as a means of mobility to visit cultural heritage sites spread throughout the city.
  2. Conduct of zero-carbon field trips with learning tours organised for students in EV taxis.

Chugoku Block

Nishiawakura Village, Okayama Prefecture

Decarbonization leading area project covering the entire village for 2050: “Enjoy Living”

Overall picture of initiatives

Public facilities and other buildings (government offices, education and welfare facilities, industrial and commercial facilities, village-operated housing, and other buildings, accounting for approximately 30% of all electricity used by the village) are being decarbonized. For this purpose, solar power, wind power, and storage batteries are installed, and existing small hydroelectric power, solar power, and wood biomass power generation are utilized. The village carries out energy management through a new local electric power company that will be established in the future. Energy is made visible on a data platform in order to promote behavior changes.

Main effects expected from the initiatives
  1. The village is working to create a recycling society through the establishment of a new local electric power company that will operate a VPP and PPA business and create local economic infrastructure, and also by utilizing bark waste generated from forest maintenance in a wood biomass business.
Key initiatives on decarbonising electric power in the consumer sector
  1. Installation of solar panels and storage batteries on rooftops at facilities to promote private consumption. Deployment of PPAs and VPPs by local power producers and suppliers set up in fiscal 2022 to supply electricity produced in the village, including existing photovoltaic power, small hydropower, and woody biomass, centrally managed by a data platform, to the entire region (Thermal energy projects are managed by existing thermal energy companies.)
  2. Installation of LED lighting, high-efficiency ventilation equipment and insulation retrofits in public and educational facilities, village housing, and other locations, and conversion to ZEB and ZEH.
Key initiatives on decarbonising electric power in the consumer sector
  1. Introduction of bark boilers using waste (tree bark) found at lumber yards from trees removed under the “100-Year Forest Initiative” (promoted since 2008) for drying wood chips.

Shikoku Block

Kitagawa Village, Kochi Prefecture

Kitagawa Village decarbonization project aimed at constructing a model for a “sustainable village of 1,000 people”

Overall picture of initiatives

The entire village is being decarbonized by installing small hydroelectric power generation and solar power generation, making use of its extensive renewable energy potential. The Kitagawa Development Corporation, in which the village has invested, plays a central role in expanding the primary local industry through the operation of a renewable energy supply and through the test of solar sharing for the yuzu citrus fruits that are a specialty product of the village. In cooperation with the local agricultural cooperative, the village promotes the creation of new orchards through smart agriculture and improvements to the yuzu quality. By conducting a decarbonization project and promoting agricultural development, the village aims to increase new residents from younger generations by training local electrical engineers and creating new jobs for agricultural workers.

Main effects expected from the initiatives
  1. By introducing small hydroelectric power and solar power business that benefits the local community, centered on the village development corporation, the village intends to train electrical engineers and create new jobs utilizing the local revitalization cooperation team system and other means.
  2. By collecting results of yuzu cultivation, the village is improving technologies for cultivation under a solar sharing system, and changing to electric agricultural equipment. It is improving the agricultural work environment linked with the results from verification testing of pest control work using robots.
Key initiatives on decarbonising electric power in the consumer sector
  1. Installation of small hydropower (four locations, 739 kW) for the maintenance and release of water in rivers in the village and the existing Hiranabe Dam, and the generated electricity is supplied to the village by the Kitagawa Village Promotion Corporation and Shikoku Electric Power Company.
  2. Installation of photovoltaic power (total of 324 kW) and storage batteries at public facilities through on-site PPAs to improve self-consumption rates.
  3. Conversion of the village hall building and integrated facilities for nursery, primary and secondary schools to ZEB, and one public housing facility for newcomers to ZEH. Development of subsidies for residents to expand projects in the village.
Key initiatives on decarbonising electric power in the consumer sector
  1. Trial installation of solar sharing project (10 kW) in yuzu lemon fields owned by the village, with electricity used on-site for electric farm machinery and other equipment to cultivate the fields.
  2. Conversion of seven vehicles for official and governmental use and set up of EV stations in two locations, which can be used by private companies when they are not in use on weekends and holidays as part of a car sharing scheme.
  3. Conversion of five village operated buses connecting major tourism facilities in the village with neighbouring municipalities to EVs.

Kyushu and Okinawa Block

Hioki City, Kagoshima Prefecture

Development of a new microgrid and creation of a model for low head small hydroelectric power generation

Overall picture of initiatives

The city is decarbonizing the area by creating new decarbonization projects. For this purpose, solar power generation is installed on unused land, abandoned farmland, and other locations in the Fukiage Region, where there has been significant population decline. Small hydroelectric power equipment using spiral water turbines is also installed as a base power source. Hioki Regional Energy Company supplies renewable energy. The village also rents electric vehicles and electric motorized bicycles and conducts workshops and on-site training for students of the local Fukiage High School. The project aims to increase the number of students and construct a center for renewable energy human resources by creating stable employment at the renewable energy company.

Main effects expected from the initiatives
  1. A portion of the revenue from promoting the use of renewable energy will be used to fund the Hioki Future Fund, which will fund related population measures and create a sustainable local society.
  2. The city aims to reduce population outflow by utilizing a diverse range of renewable energy sources such as small hydroelectric, wind, and solar power, and conducting on-site training, in order to develop renewable energy human resources at Fukiage High School and generate jobs at the renewable energy company in the city.
  3. By introducing renewable energy in the manufacturing industry that is the city’s core industry, the city aims to strengthen the business infrastructure and improve its brand power as an industrial park where renewable energy is generated and consumed locally.
Key initiatives on decarbonising electric power in the consumer sector
  1. Installation of photovoltaic power and storage batteries (approx. 1,324 kW) in detached housing, apartment/shared housing, and businesses through PPA projects.
  2. Installation of photovoltaic power (6,674 kW) on unused and abandoned land.
  3. Introduction of small hydropower (five locations, total of 281 kW) using “spiral water turbines” that can generate power even at low heads (less than 10 m).
Key initiatives on decarbonising electric power in the consumer sector
  1. Installation of photovoltaic power equipment (705 kW) in private facilities at Tokushige Industrial Park with the aim to achieve RE100 in the future.
  2. Rental of electric bicycles and electric motorbikes for school commutes to Fukiage High School, where enrolment continues to be low, to reduce the burden on parents and guardians, and the organisation of courses to develop human resources in renewable energy.