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Tadokoro H.,Information and Control Systems Company | Onishi M.,Hitachi Ltd. | Kageyama K.,Hitachi Ltd. | Kurisu H.,Industrial and Social Infrastructure Systems Company | Takahashi S.,Yokohama Research Laboratory
Hitachi Review | Year: 2011

OVERVIEW: Water is essential to our way of life and international water-related issues include its short supply and uneven distribution. How to use water in a way that is in harmony with nature and the water cycle and how to reduce the emission of greenhouse gases associated with water treatment are also of concern. To resolve these issues and establish infrastructure for water that is safe and gives users easy access to water and confidence in its quality, Hitachi has proposed the "intelligent water system" concept. This concept aims to perform comprehensive management of the water cycle at a regional or city level based on the ideas of harmony, sustainability, and self-reliance by adopting more intelligent individual technologies including water recycling and other water treatment technologies, information technology, and monitoring and control technology, and by implementing water cycle traceability in a way that treats the water cycle as a "flow of both water and information".

Okuma N.,Hitachi Ltd. | Nakayama Y.,Hitachi Ltd. | Tsuzuki K.,Hitachi Ltd. | Matsui S.,Hitachi Ltd. | And 2 more authors.
Hitachi Review | Year: 2010

The 21st century has been called the "water century" and there are forecasts that predict the global water business will have a market size of 100 trillion yen in 2025. Hitachi is actively pursuing its water infrastructure business which is one of its social innovation businesses. The Global Water Recycling and Reuse System Association, Japan was established in 2009 by Japanese companies in the water business to support their aims to expand globally and Hitachi's role in the Association is virtually as an operational company engaging in practical measures. Meanwhile, other leading-edge initiatives being pursued through research commissioned by New Energy and Industrial Technology Development Organization include projects on "demonstration study of an integrated systems business for reuse of seawater, fresh water, sewage, and other wastewater" in Japan and demonstration study of a small-scale distributed water circulation business in emerging regions such as the Middle East.

Kawano H.,Industrial and Social Infrastructure Systems Company | Sakai T.,Hitachi Ltd. | Saito Y.,United Environment & Energy, Llc | Murai D.,Energy Solutions Center | And 2 more authors.
Hitachi Review | Year: 2010

Calls to reduce emissions of greenhouse gases, particularly CO2, to combat global warming have strengthened in recent years and companies are taking steps to cut their emissions. Hitachi has responded to these market conditions with solutions for improving environmental performance and reducing CO2 emissions that it supplies globally.

Miyazaki T.,Industrial and Social Infrastructure Systems Company | Fukushima Y.,Hitachi Ltd. | Hirata K.,Energy and Environmental Solutions Center | Fujiwara T.,Industrial and Social Infrastructure Systems Company | Dolan B.,Power Systems Group
Hitachi Review | Year: 2010

Investment in development remains strong in the oil and gas industry due to the long-term augmentation of energy consumption evident in the global market, while the industry also faces urgent issues which include the sustainable and effective use of finite energy resources, new efforts to develop unexploited sources of energy, and the acquiring of interests to these resources. In recent years, the requirements for the oil and gas production plants that support these developments have included reducing life cycle costs and achieving a high level of plant efficiency, moreover minimizing CO2 emissions for environmental conservation. Hitachi is responding to market needs through initiatives aimed at increasing the value of specific products by measures such as developing technology and improving the efficiency of key equipment and systems and offering total solutions that integrate energysaving technologies accumulated from past involvement in various different fields, while also contributing to global warming prevention, reducing the burden on the environment, and similar objectives.

Yokosuka Y.,Institute of Electronics | Nagasu M.,Industrial and Social Infrastructure Systems Company | Oda T.,Hitachi Ltd. | Sakamoto H.,Industrial and Social Infrastructure Systems Company | Wajima T.,Industrial and Social Infrastructure Systems Company
Hitachi Review | Year: 2010

As greater attention is paid to environmental problems, high expectations are being placed on the role of railways as a means of transport that by its nature places a light impact on the environment. Hitachi is working on technical developments that will further enhance this characteristic of low environmental burden. For diesel trains, Hitachi has developed a hybrid drive system that tests indicate will provide up to about 20% better energyefficiency than current diesel engines and that is being developed further and introduced into practical use in Japan. Hitachi has also developed and confirmed the effectiveness of systems that make effective use of regenerative electric power on electrified sections by storing unused regenerative electric power in lithium-ion batteries so that it can be supplied back to powering trains. For carbodies, Hitachi is working on initiatives that include the adoption of lightweight energy-efficient designs that use an aluminum body structure and saving on resources by using recycled aluminum. Hitachi is also deploying environmentally conscious trains globally that incorporate these technologies.

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