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Hitachi

Corporate InformationEnvironmental Activities

[Image] A factory for other factories to aspire to.

Making the most of their own eco products! The Narashino Division is a model for the world as an energy-saving factory.

The Narashino Division is a Eco-Factory for Hitachi Industrial Equipment Systems, a company which follows the basic principle of reconciling productivity with care for the environment. 
This solid technology and its energy-saving effects are highly regarded by the company's customers, and the factory itself doubles as a showroom for energy-saving products. The factory is also attracting attention from around the world as an energy-saving model factory, through initiatives such as taking in trainees from outside Japan.

Energy Conservation

The company saves energy by using its own products Detailed measures eliminate power wastage.

[画像] motor

The motors that move the factory plant are the largest consumers of electricity at the Narashino Division. Controlling these motors with inverters developed by the company and replacing motors with more efficient ones achieve major energy-saving effects.

Similarly, inverter-controlled air compressors, which make the compressed air to power the factory equipment, have also been introduced to save energy. Hitachi Industrial Equipment Systems makes full use of its energy-saving products, such as by replacing the transformer station transformers with high-efficiency amorphous versions, to save energy in the factory.

Such detailed improvements, including the introduction of monitoring systems that “visualize” the amounts of power use, enable further waste reduction.

Waste Reduction

Reduce wastage. Use repeatedly. Recycle Use resouces with care, because they are limited. 

Waste corrugated cardboard from inside the factory is processed and reused as shock-absorbent packaging for motor components. The acetone solvent used for cleaning products is recovered, cleaned of contaminants and reused. The consistent efforts of every employee such as displaying garbage sorting charts and collecting PET bottle caps have enabled the Division to raise its waste recycling rate to 99.96 %.

Modal Shift

Shift from truck transportation to rail transportation! We consider the environment also when we transport our products.

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The motors that move the factory plant are the largest consumers of electricity at the Narashino Division. Controlling these motors with inverters developed by the company and replacing motors with more efficient ones achieve major energy-saving effects.
Switching from shipments by trucks to cleaner railway transport to reduce CO2 emissions when transporting products. In 2008, this effort won considerable praise, and Hitachi Motors *1 were chosen as the first motor product to receive “Eco Rail Mark” product approval *2 from the Ministry of Land, Infrastructure, Transport and Tourism.

*1
Hitachi Motors is a trademark of Hitachi Industrial Equipment Systems.
*2
Products are approved if rail is used for at least 30% of land freight transportation of 500km or more.

Energy Recovery System

Discovering elusive energy in water!We built a small hydroelectric power station onto the pipes.

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When we looked around the expansive factory, we found energy in the water flowing in the factory utility water distribution pipes. Building generators onto the pipes created small hydroelectric power stations. Power generation is up to 1.5kW, and that is put to good use as part of the factory's power supply.

Solar Power Generation System

Limitless, clean sunlight is the environmentally conscious energy source.

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The concept of creating power, not just using it, is vitally important. The Narashino Division has solar power systems with a rated power output of 130kW in total with arrays of 168 and 480 solar panels for generating 30kW and 100kW, respectively. We use it within the factory, together with electricity bought from the power utility.

Eco-Factories & Offices Select Certification Item

[Image] Renewable energy use

Renewable energy use
Installed a 130kW photovoltaic power generation system (FY 2015)

[Image] Recycling of waste and other resources

Recycling of waste and other resources
Achieved a final disposal rate of less than 0.1%, and 100% registration rate in electronic manifests in Japan (FY 2015)

Product Information

[Image] The Motor NEO100 Premium

The Motor NEO100 Premium
The Motor NEO100 Premium meets the efficiency requirements (equivalent to IE3) under the Top Runner program that will be launched in FY 2015, contributing to energy savings.

[Image] Energy-Saving HE Pump

Energy-Saving HE Pump
This pump is used to supply water to buildings and condominiums. It is equipped with a high-efficiency magnet motor (equivalent to IE4) and contributes to energy savings. The pump also has a built-in inverter function and requires no control panel, contributing to space savings.

[Image] NE-S1 Series Inverter

NE-S1 Series Inverter
This product provides variable speed motor control, contributing to energy savings. It also has an automatic energy-saving control function to constantly minimize power consumption. The standard product meets international standards, such as CE.