With the aim of realizing recycling-based society, we are working to make effective use of resources and reduce greenhouse gas emissions at every stage of our business.
[Resource Utilization] Reusing unwanted items by holding upcycling events
Nagano Tokyu Department Store is working on the "hug・eco project" as part of its "Regional Platformer" initiative, which aims to expand its involvement with various local products, people, and businesses. As part of this initiative, the store held a clothing upcycling event in collaboration with Oka Gakuen Total Design Academy, a fashion school in Nagano City.
Customers were asked to submit "a piece of clothing that holds memories" that they were no longer using, and the collected items, along with banners provided by Nagano Tokyu Department Store, were upcycled by Oka Gakuen students into other clothing and miscellaneous goods. In addition, after making preparations such as introducing the products for sale on Instagram Live, an exhibition and sale of 100 completed items was held in the main square of Nagano Tokyu Department Store. Many people came to visit. The original plan to reduce waste was featured in local media, and received a great response.
Collaborative broadcast with Oka Gakuen Total Design Academy
Instagram Live
Exhibition and sales event
Related page (Nagano Tokyu Department Store 's Environmental Initiatives)
Related Release (Announcement of the "Clothing Collection Event" Industry-Academia Collaboration Project)
[Resource Utilization] Effective use of water resources through the installation of recycled water facilities -Shibuya Scramble Square-
Shibuya Scramble Square a large-scale complex that opened in November 2019, is taking steps to conserve water resources leading to a reduction in water usage with the aim of making effective use of water resources and reducing the burden on sewerage facilities.
Wastewater from the store's kitchen and miscellaneous wastewater is decomposed by microorganisms and purified with activated carbon in a recycled water facility installed on the sixth basement floor of the building. The purified water is reused for flushing toilets, making effective use of water resources and reducing the burden on sewerage facilities.
In addition, the building is aiming to optimize energy use in the entire area around Shibuya Station, rather than just focusing on the building itself. For example, the building is installing solar panels on the roof and planting greenery on the south side of the building to reduce CO2 emissions, and the building is making it possible to share heat sources (cold and hot) with surrounding facilities.
Shibuya Scramble Square exterior
(Courtesy of Shibuya Scramble Square)
recycled water facility
(Courtesy of Shibuya Scramble Square)
Related page (Shibuya Scramble Square Environmental Initiatives)
[Resource Utilization] Reducing CO2 emissions by reducing tap water usage - Tokyu Store -
Tokyu Store has been able to reduce water usage and CO2 emissions by introducing new water-saving equipment in the kitchen. The pulsating flow water-saving valve changes the amount of water that is released when bubbles are formed by mixing water and air, and the water is continuously hit on the dirt, resulting in a high cleaning power that can break down even stubborn dirt. The water pressure and water volume can be adjusted, so water can be saved without reducing cleaning power, and another advantage is that it can be used continuously without maintenance.
First, in 2017, a 49-day trial was conducted at one store to confirm the water-saving effect, after which the system was introduced to each kitchen in the seafood and delicatessen departments of 84 offices in May 2018. As a result, water usage was reduced by 97,065 m3 per year, and 33 t-CO2 emissions were reduced. This is equivalent to the annual CO2 reduction absorbed by approximately 2,300 artificial cedar trees.
Water saving valve
Related page (Tokyu Store's SDG Initiatives)
[Resource Utilization] Demonstration experiment of water recycling -Maipari Miyakojima Island Tropical Fruit Park-
Our company, Miyako Kanko Kaihatsu Co., Ltd., and Token Sangyo Co., Ltd. are conducting a demonstration experiment at Maipari Miyakojima Island Tropical Fruit Park to achieve the group-wide target of reducing Water Resources usage by 10% as set out in "Environmental Vision 2030" This is an initiative in which miscellaneous wastewater and sewage discharged from the "Maipari" facility is treated in an existing wastewater purification tank, and then further treated with newly introduced complex fermentation technology, and the water (reclaimed water) is recycled and reused for flushing the toilets in the facility, and currently, the facility's clean water usage has been reduced by approximately 30%.
Complex fermentation not only purifies wastewater to a level that meets environmental standards without using any chemicals such as chlorine, but also suppresses the generation of odors and sludge that are problems during the water purification process. It is expected that using reclaimed water as liquid fertilizer for agriculture will lead to the improvement of the soil and marine environment of Miyako Island, which relies solely on underground dams and groundwater for water resources, and to the conservation of biodiversity.
Maipari Water Circulation Demonstration Experiment
20ft container with composite fermentation equipment
(The existing wastewater septic tank is in the foreground on the left)
Related Release (Maipari Water Circulation Demonstration Experiment)
[Resource Utilization] Energy conservation efforts at a station and commercial facility – Shibuya Station and Shibuya Hikarie –
In underground stations, the power consumption of ventilation and air conditioning equipment accounts for approximately 80% of the total power consumption of the station. Therefore, efforts regarding ventilation and air conditioning have a significant impact on the energy consumption of the entire station. Therefore, Shibuya Station, a large station with five underground floors, has adopted a large-scale natural ventilation system in conjunction with the Shibuya Hikarie commercial facility directly connected to the station, achieving significant energy savings. In addition, a "radiant cooling system" has been adopted, in which cooling tubes are installed under the floor and in the ceiling of the platform to circulate cold water.
This natural ventilation system and radiant cooling method, which do not rely on machines, will reduce annual electricity consumption by approximately 2.94 million kWh in FY2023 compared to a building of the same size using conventional cooling systems, which is equivalent to a reduction in CO2 emissions of approximately 1,632 t.
Furthermore, Shibuya Hikarie also implements a "night purge" system that reduces energy consumption for air conditioning by taking in outside air at night, and also plants greenery on the rooftop and exterior.
Shibuya Station's natural ventilation system
Environmental Considerations at Shibuya Hikarie
Related page (Tokyu Railways' Environmental Initiatives)(Only available in Japanese)
[Resource Utilization] Building an electricity circulation system at a hotel -Kawasaki King Skyfront Tokyu Rei Hotel-
Kawasaki King Skyfront Tokyu Rei Hotel, which opened in June 2018, is the world's first hydrogen hotel that uses hydrogen derived from used plastics to generate electricity and hot water. However, the hotel is not limited to this. They also use hydrogen to grow lettuce hydroponically in the lobby, and serve the harvested lettuce at the buffet. In addition, they have achieved a 100% recycling rate by providing food waste to a power generation facility as a raw material for biomass power generation. In addition, they have created a circular system in which the generated electricity is bought back by a power selling company and used by the hotel. By introducing the 100% renewable energy plan "Zero Emission Plan®" * for other electricity, they have realized a CO2-free hotel, with 30% of the total electricity coming from hydrogen energy and 70% from renewable energy. The amount of CO2 reduction is about 419 tons per year (equivalent to about 47,600 cedar trees), contributing to the realization of a decarbonized and recycling-based society.
*An environmentally conscious electricity supply plan that uses FIT electricity as its power source and non-fossil fuel certificates and J-Credits to achieve 100% renewable energy.
Exterior of "Kawasaki King Skyfront Tokyu Rei Hotel"
Installing a pure hydrogen fuel cell system
Leaf lettuce grown at the hotel
Related page (Tokyu Hotels "Sustainable Policy")
[Resource Utilization] Reducing Plastic Cutlery - Tokyu Store -
In April 2022, the Act on Promotion of Resource Circulation Related to Plastics (Plastic Resource Circulation Promotion Act) came into effect to strengthen businesses' efforts to reduce plastic. In response to this, Tokyu Store is considering reducing the amount of plastic cutlery (spoons, forks, straws, etc.) that is distributed free of charge in stores. All stores have switched to wooden and paper cutlery, achieving a reduction of 21.1 tons of plastic per year and making a significant contribution to environmental protection. The cutlery after the material change is produced from forests that are properly managed with the aim of sustainable forest utilization and conservation, which also contributes to forest protection.
As part of advance awareness-raising activities, we carried out measures such as posting posters on our website and in stores, and received a lot of positive feedback from customers.
In-store posters
Free new cutlery
Related page (Tokyu Store SDGs)
[Zero Waste] Effective use of rolling stocks - Transfer to railway companies -
The former 7000 series, which appeared in 1962 as Japan's first all-stainless steel railcars, was transferred to railway Konan railway (Aomori Prefecture), Hokuriku Railway (Ishikawa Prefecture), and Mizuma railway (Osaka Prefecture) after being retired from Tokyu Lines in 2000, and is still in use today. Compared to recycling through dismantling railcars, this has less of an environmental impact, and it allows the railcars to be updated at low cost to the railway to which they are transferred.
Additionally, the 7700 series, which was created in 1987 by modifying the old 7000 series, was retired from Tokyu Lines in November 2018 and transferred to the Yoro Railway (Gifu Prefecture and Mie Prefecture). After being modified for the Yoro Railway, including changing the exterior design and installing cross seats in some of the middle cars of the three-car train, it completed test runs and began commercial operation in April 2019. It is scheduled to continue running on the Yoro Railway for approximately 30 years from now.
The 7700 series that ran on the Tokyu Line
7700 series train running on the Yoro Railway
Related page (Tokyu Railways' Environmental Initiatives)(Only available in Japanese)
[Coexistence with Nature] Sustainable Urban and community development in harmony with abundant nature - Futako Tamagawa Rise
Futako Tamagawa Rise is a complex consisting of commercial facilities, offices, hotels, and residential blocks. For the future of our children and the planet, we are working to create a safe and secure Urban and community development where people are the main focus, while also taking the environment into consideration.
Energy-saving equipment and renewable energy are being adopted in the area's buildings, roads, and other infrastructure facilities, and efforts are being made to reduce energy and CO2 emissions. The area has good access to Den-en-toshi Line, Oimachi Line, and various buses, and is developing into a high-density, compact, multi-functional city that brings together commercial, office, public Biodiversity the number of insects and birds visiting has increased, and it is now possible to see spot-billed ducks laying eggs.
These efforts were recognized, and in 2015 the building became the first in the world to receive Gold certification *1 from the international environmental certification system "LEED ND (Neighborhood development category)." The certification drew a wide range of reactions, and the number of visits by people in the environmental and architectural fields from both within Japan and overseas increased dramatically. It also led to the building receiving the "25th Global Environment Award (Grand Prix)" *2, sponsored by Fujisankei Communications Group which aims for "the symbiosis of industrial development and the global environment."
Futako Tamagawa Rise has been recognized for its efforts to maintain and conserve the Tama River ecosystem, receiving the highest AAA rating from the Japan Japan Habitat Evaluation and Certification Program (JHEP), a domestic third-party program that evaluates projects that enhance Biodiversity.
*1 LEED®, offered by the U.S. Green Building Council (USGBC), is an evaluation and certification program that contributes to the design, construction, and maintenance of high-performance green buildings. LEED® and its logo are registered trademarks of the USGBC and may be used with permission.
*2 Global Environment Award: An award system established with the aim of "coexistence between industrial development and the global environment," bringing together businesses, government, and citizens.
A sustainable city that eliminates waste of energy and resources
Winner of the 25th Global Environment Award
Futako Tamagawa Rise is blessed with a natural environment close to the Tama River and the Kokubunji Cliff Line.
Related page (Futako Tamagawa Rise Environmental Initiatives)