For the environment

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Environmental management

The Keikyu Group Basic Environmental Policy

We endeavor to preserve the global environment, reduce our environmental impact through our business and social contribution activities, and contribute to the realization of a society that can develop sustainably.

Action Guidelines

  • We endeavor to make further improvements to convenience and to create appealing value along our railways, with a focus on providing environmentally friendly public transportation.
  • We endeavor to reduce our impact on the environment through the effective use of resources and energy, as well as initiatives to reduce, reuse, and recycle waste.
  • We endeavor to coexist with and preserve the rich natural environment along our railway lines so that our children, who will lead the next generation, inherit a better environment surrounding the railway.
  • We place value on communication with all of our stakeholders, and endeavor to cooperate and work together with local communities.
  • We endeavor to fully comprehend and comply with environmental laws and regulations and to increase the environmental awareness of all of our employees through awareness campaigns and educational activities.

Climate Change Countermeasures

Environmental targets

With the aim of helping to realize a carbon-neutral society, we have established long-term environmental targets. We will advance and appropriately monitor initiatives to reduce GHG emissions.

Long-term environmental target : make the Keikyu Group carbon neutral by 2050
Interim environmental target : 30.0% reduction in GHG emissions in fiscal 2030 compared with those of fiscal 2019

Disclosure Based on the Task Force on Climate-related Financial Disclosures (TCFD) Recommendations

We have positioned ESG initiatives as the basis of business management and pursue sustainability measures including climate change countermeasures as a matter of management strategy. In addition, we conducted analysis and disclosure based on the TCFD recommendations in June 2022 with the aim of helping to realize a carbon-neutral society. We will continue moving forward with climate change countermeasures while further increasing analysis and disclosure.

Environmental data

Environmental burden data, environmental accounting

Consolidated environmental burden data

Each of our business activities, including railway operations, requires energy and resources, and these activities also generate greenhouse gases and waste.
The Keikyu Group has set “make the Keikyu Group carbon neutral by 2050” as a long-term environmental goal, and is working to quantitatively assess and reduce the environmental impact of its business activities.

Energy and Resource Consumption
Category FY2019 FY2020 FY2021 FY2022
Light oil 25,131 ㎘ 18,874 ㎘ 18,117 ㎘ 18,779 ㎘
Gasoline 879 ㎘ 768 ㎘ 852 ㎘ 871 ㎘
Type A heavy oil 487 ㎘ 290 ㎘ 289 ㎘ 172 ㎘
LPG 1,973 t 1,466 t 1,566 t 1,820 t
City gas 6,906 ㎦ 4,191 ㎦ 3,384 ㎦ 3,780 ㎦
Kerosene 258 ㎘ 233 ㎘ 329 ㎘ 211 ㎘
(Volume of which was electricity generated from renewable energy)
382,702,024 kWh 
( 0 kWh)
365,472,301 kWh 
( 0 kWh)
334,076,083 kWh 
(13,241,491 kWh)
341,910,051 kWh 
(25,822,595 kWh)
Steam, hot water, cold water 5,963 GJ 12,714 GJ 11,230 GJ 8,833 GJ
Water usage *1 3,243,500 t 2,169,816 t 1,740,915 t 1,621,882 t
Copy paper purchased by offices 159 t 136 t 130 t 123 t
Category FY2019 FY2020 FY2021 FY2022
GHG emissions 265,786 t-CO2 228,147 t-CO2 214,647 t-CO2 209,315 t-CO2
scope1 91,231 t-CO2 66,180 t-CO2 64,634 t-CO2 66,324 t-CO2
scope2 174,554 t-CO2 161,967 t-CO2 150,012 t-CO2 142,990 t-CO2
Industrial 97,092 t 31,246 t 30,551 t 17,222 t
General *2
(Volume of which was recycled)
(Percentage recycled)
12,751 t 
(6,691 t)
(52.5 %)
9,054 t 
(4,155 t)
(45.9 %)
8,540 t 
(4,477 t)
(52.4 %)
10,221 t 
(4,356 t)
(42.6 %)
  • *Reference: Greenhouse Gas Emissions Calculation and Reporting Manual, Ministry of the Environment
  • *Decimals are rounded down to the nearest whole number.
  1. *1Tap water, underground water (including hot spring water), ocean water
  2. *2Subject to the amount reported to the municipality

Nonconsolidated environmental accounting (Fiscal 2022 Results)

Environmental accounting is a system for recognizing the costs incurred as a result of environmental preservation activities as well as the effects of such activities. It also provides a framework for measuring and communicating this information as quantitatively as possible.
We have been using environmental accounting since fiscal 2008.

(Thousands of yen)

Classification Capital investment Cost
Business area costs
Pollution prevention costs Prevention of air, water, noise, odor and land subsidence, etc. 279,770 828,762
Global environment preservation costs Prevention of global warming and energy-saving 568,770 32,834
Resource recycling costs Water and waste disposal and recycling 62,575 77,077
Subtotal 911,115 938,673
Management activity costs
Upstream and downstream costs Green purchasing and procurement - 27,738
Management activity costs Environmental management and environmental disclosure - 27,600
Community activity costs Participation in and donations to community activities - 126
Subtotal - 55,464
Total 911,115 994,137
Basic Elements of Environmental Accounting
  • Calculations are based on the 2008 edition of the Private Railway Business Environmental Accounting Guidelines.
  • The scope of calculations is Keikyu Corporation on a nonconsolidated basis.
  • Figures of less than ¥1,000 have been rounded.
  • Only initiatives that can be reliably identified are included in the environmental accounting.
  • Depreciation has not been included in the costs.

Environmental initiatives

Energy-saving measures

Introducing energy-saving railcars

By fiscal 2010, we had discontinued all traditional resistance-controlled railcars and replaced them with energy-saving railcars equipped with regenerative brakes. In addition, we have progressively introduced variable voltage variable frequency (VVVF)-controlled railcars, which are more efficient in regenerating electricity than field chopper-controlled railcars. As of the end of fiscal 2022, VVVF-controlled railcars accounted for approximately 99.0% of our railcars.

Switching Railway Stations and Trains Over to LED Lighting

Kamiōoka Station after conversion to
LED lighting

To reduce energy consumption, we are progressively converting lighting fixtures in railway stations and trains to light-emitting diode (LED) lighting.

Progress of LED conversion as of the end of fiscal 2022
Railway stations : 48.0% complete
Railcars : 66.0% complete

Electricity consumption and energy intensity of operations

FY For railway operation (million kWh) For auxiliary use
(million kWh)
Energy intensity (kWh/railcar-km)
2013 208 44.1 1.814
2014 201 44.1 1.747
2015 198 44.1 1.711
2016 199 44.0 1.707
2017 196 43.5 1.684
2018 191 44.0 1.640
2019 185 44.0 1.595
2020 181 43.0 1.555
2021 180 42.3 1.567
2022 179 40.8 1.586

Introducing Solar Power Generation

For use in the operation of facilities, we have introduced solar power generation to some of our railway stations and Group companies.

Facilities to which solar power generation was introduced

  • Haneda Airport Terminal 3 Station
  • Minamiōta Station
  • Kanazawa-bunko Station
  • Aburatsubo Keikyu Marina
  • Kamoi Driving School
Minamiōta Station
Aburatsubo Keikyu Marina

Introducing Net-Zero CO2 Emissions Electricity Generated from Renewable Energy Sources

The Airport Line, which operates with
net-zero CO2 emissions

Changeover to renewable energy

    Keikyu Corporation
  • Electricity consumption of the operations of the Airport Line (since 2021)
  • Electricity consumption of the business operations of 19 railways stations on the Keikyu Main Line between Keikyū Higashi-kanagawa and Kanazawa-hakkei Stations and all railway stations on the Zushi Line (since 2021)
  • Electricity consumption of the Keikyu Group head office, which includes the offices of 12 Group companies (since 2021)
  • Electricity consumption of the business operations* of six railway stations on the Kurihama Line between Keikyū Kurihama and Misakiguchi Stations (since June 2023)
    Group companies
  • Electricity consumption of Hayama Marina (since April 2023)
  • Electricity consumption of certain real estate properties owned by Rinko Estate Co., Ltd. (since April 2023)

The aforementioned introduction of electricity generated from renewable energy sources reduces CO2 emissions by an amount equivalent to approximately 12,000 tons per year.

  • *Railway station lighting, air conditioners, railway station equipment, railway crossings, and signals

Other initiatives to Reduce Environmental Impact

Introducing Environmentally Friendly Buses

In an effort to minimize environmental impact, Keihin Kyuko Bus Co., Ltd., has been operating SORA fuel cell buses and compact electric buses, which were introduced in 2019 and March 2023, respectively. Meanwhile, Kawasaki Tsurumi Rinko Bus Co., Ltd., has been working to reduce the burden on the environment by operating buses that use biodiesel fuel.

A compact electric bus
A biodiesel-fueled bus

Introducing of EVs in the Taxi Business

EV taxi

The Keikyu Taxi Group has introduced 50 EV taxis* since April 2023 in an effort to reduce GHG emissions.

  • *Keikyu-Kotsu Co., Ltd.: 15 EV taxis, Keikyu Yokohama Jidosha Co., Ltd.: 10 EV taxis, Keikyu Bunko Taxi Co., Ltd.: 10 EV taxis, Keikyu Hayama Kotsu Co., Ltd.: five EV taxis, Keikyu Chuo Kotsu Co., Ltd.: 10 EV taxis

Acquiring Environmental Certification in Real Estate Operations

acquired ZEH-M Oriented certification

PRIME STYLE KAWASAKI has become the first condominium in the city of Kawasaki to receive ZEH-M Oriented certification, which recognizes environmentally friendly condominiums that realize significant energy savings while maintaining the quality of indoor environments. We will continue to acquire environmental certification for future development projects.

Promotion of a Recycling-Based Society

To promote a recycling-based society, we are making effective use of finite resources and reducing waste. As a corporate group with rich marine environments in our lineside areas, we are also actively advancing initiatives to reduce ocean plastic waste.

Washing Buses with Recycled Water

A bus being washed with recycled water

In March 2019, Kawasaki Tsurumi Rinko Bus concluded an agreement with the city of Kawasaki for the use of water that has undergone advanced treatment at the Iriezaki Wastewater Treatment Center. By washing buses with water produced from the advanced treatment of sewage, we will utilize water resources effectively and help build a society based on recycling and consideration for the global environment.

Keikyu Group Plastic Waste Reduction Campaign

A beach cleanup

In 2019, we concluded an agreement with Kanagawa Prefecture on cooperation and collaboration for the promotion of the SDGs. As part of this initiative, we are promoting the Keikyu Group Plastic Waste Reduction Campaign, which is focused on reducing ocean plastic waste. Aiming to help realize SDG 14, which calls on humankind to “Conserve and sustainably use the oceans, seas and marine resources for sustainable development,” the Keikyu Group is implementing a range of activities, such as conducting cleanup activities at beaches, popularizing reusable shopping bags, and introducing straws made of biodegradable materials, throughout the Group.

Biodiversity Conservation

We contribute to the conservation of biodiversity through activities to preserve the natural environment in lineside areas and through
environmentally friendly business activities.

The Miura Forest Project

Launched in February 2023, the Miura Forest Project aims to further demonstrate the capacity of these forests to absorb carbon dioxide through the sound management of the approximately 100 hectares of Company-owned forests in the Miura Peninsula, as well as create beautiful and highly functional forests that help preserve biodiversity and open up possibilities for the future.

Cooperation Efforts to Preserve the Koajiro Forest

Koajiro Forest

One of Miura’s irreplaceable assets, Koajiro Forest still has a natural water system as well as a valuable ecosystem that is home to rare species. As part of our cooperation in efforts to protect the natural environment, we have voluntarily preserved roughly 10 hectares of our forest and donated approximately 2 hectares to Kanagawa Prefecture in response to its designation of Koajiro as a special suburban green space preservation area.

Environmentally Friendly Golf Course Management

Nagano Keikyu Country Club

Nagano Keikyu Country Club is managed with a view to preserving biodiversity. For example, about 60% of the large site has been designated as a non-playing area to provide habitats for rare species.
In addition, through the Biodiversity Conservation Partnership Agreement concluded with Nagano Prefecture, we donate a portion of the club’s revenue to support environmental education at elementary and junior high schools in the prefecture.