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Environmental Initiatives

Environmental Initiatives

With logistics companies having a large impact on the environment, Senko believes that it is our responsibility to implement measures to reduce our environmental burden.

The SENKO Group started its Environmental Master Plan in fiscal 2001. The plan has four phases that are aimed at making the group an organization that can contribute to creating a society in which resources are recycled and reused. Phase I is environmental education programs for employees. Phase II is the implementation of measures to convert the group into an advanced environmental logistics organization. Phase III is the extension of environmental activities to outside the SENKO Group. Phase IV and Ⅴ is activities aimed at becoming a highly advanced environmental organization.

Developing Environmental Protection Activities Based on the Four-Year Medium-Term Environmental Initiatives Plan

Since 2001, Senko has formulated “Environment Master Plans”, and has worked as a group on implementing environmental protection initiatives.
In fiscal 2013, a Phase Ⅴ Environmental Master Plan was prepared with the aim of reaching medium-term goals established for fiscal 2016. Environmental activities are now under way to fulfill these goals.

Green Logistics Initiatives

Modal Shift Activities

Modal Shift Promotion (Railway x Sea Transport)

We provide a Senko-exclusive modal shift, applying our sea vessels and coastal shipping transport operations on various sea routes. Senko contributes to reduction of CO2 emissions by making best of the characteristics of each transport method (road, rail and sea) and combining them to create an efficient distribution system.


Development of the Industry’s First Automatic Floor Function Railway Container

A 31 foot container with an automatic electric sliding floor bed has been jointly developed by Senko, the Japan Transport Engineering Company, and Nakao Manufacturing Co., Ltd. Loading and unloading cargo to containers was mostly done by hand in railway transport, but this newly developed container allows loading and unloading of cargo to the very end of the container without having a person within the container, enhancing job efficiency and reducing work load. Senko is also developing other railway containers with more innovative functions. We aim to provide a modal shift to meet our customer’s needs by improving transport convenience.

Joint Transport Activities

Efficient Distribution/Ecological (Logistics ICT x Base Network)

Senko has established a “joint transport” system where cargo from multiple customers are collected and delivered jointly. We provide an efficient and ecological logistic service using our advanced logistics ICT (telecommunication) technology and nationwide distribution bases.


Reducing Truck and Ship Fuel Consumption

Reducing Truck Fuel Consumption

Eco-Drive (Energy-Conserving Driving Techniques)


About 2,600 SENKO Group trucks are equipped with digital recorders to enable drivers to operate vehicles in a manner that cuts fuel consumption and CO2 emissions. The device sounds an alarm when a limit for engine speed or other operating parameter is exceeded. Numerical assessments of truck operations are output, too. Overall, the recorders make drivers better able to operate vehicles efficiently and safely.

Introduction of Fuel-saving Vessels/Facilities

Continuous Effects of Fuel-saving Antifouling Paint (Ship Hull Paint)

[Pic] The new hull coating cut fuel consumption of the SENYO MARU

Vessels in the Senko fleet such as the “Senryu Maru”, “Sentai Maru”, and “Senyo Maru” have been painted with fuel-saving hull paint (hull paint with water-absorbent polymer) from the FY 2010, resulting in fuel-saving of approximately 4% when compared to FY 2009. By continuously using fuel-saving hull paint, effects approximating around 3% were seen in 2011 and on. This practice will continue in an aim for a more energy-conscious transport operation.

Introduction of Propeller Boss Cap Fins (PBCF)

[Pic] The propeller boss cap fin

Propeller Boss Cap Fins (PBCF) is fittings that attach to the boss cap behind the propeller. When the same amount of PBCFs are fitted as the propeller fins, the vortex that occurs from the tip of the boss cap is dispersed and reduced, lowering resistance, improving propulsion efficiency and as a result, saving fuel. Two more vessels are scheduled to be fitted with PBCFs in the FY 2013.

Initiatives Aimed at Reducing CO2 Emmissions

Promoting Energy-saving as a part of Senko Eco Innovation 2012

The Senko Group is lowering electricity consumption at all locations as part of Senko Eco Innovation 2012, a three-year medium-term plan that started in FY2010. Switching to energy-efficient equipment such as energy-saving lighting and air conditioning systems is one way the group is cutting power use. In addition, power demand units were installed in offices, enabling employees to actually see the result of their energy-saving actions, ensuing in everyday power saving.

Introduction of Electricity Demand Units


Electricity accounts for approximately one-third of all energy used by the Senko Group. To lower energy consumption, group offices promote energy-saving activities by using 35 energy-saving methods according to the type of facility and business operation.
Offices which consume the most electricity in the group have installed electricity demand monitoring units that show electricity usage every 30 minutes. By visualizing electricity usage, we will aim to effectively reduce power usage according to each cause. Other energy-saving methods such as electricity peak-cuts (reducing usage at the peak times of electricity demand) and partially turning off fluorescent lights in offices are being taken along with the installation of demand units. Additionally, a private power generator has been installed from a BCP (business continuity plan) point-of-view.

Improving the Working Environment by Installing Heat-shielding Sheets

[Pic] The Chiba distribution center

Heat-shielding sheets (for exclusive use in folded-plate roofs) have been installed over the entirety of the distribution center roofs as a part of work environment improvement and a summertime energy-saving measure. As a result, the roof temperature lowered approximately 20℃, and indoors temperatures also decreased by 3 to 5℃. This allowed reduction of air-conditioning temperatures in the top floors, resulting in almost a 20% decrease of electricity at peak times and preventing heat attacks.

Promoting Change to Energy-efficient Lighting

[Pic] The Ibaraki PD center

Senko is actively progressing with exchanging lighting to energy-saving lighting fixtures, such as replacing conventional lights with LED fluorescent lights in offices and distribution centers. Energy-saving practices are in full progress, and activities such as adjusting the light level to the proper brightness by using an illuminometer and using reflective plates are also being taken on.