Hitachi Review

Energy Management and Application of Symbiotic Autonomous Decentralization Concept to Water Supply and Sewage

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Hitachi Review

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The water supply and sewage sector in Japan is entering a period in which the focus is on operation and maintenance, with the requirement being to maintain safe and reliable services despite aging infrastructure and challenging financial constraints. To achieve this, steps are being taken to consolidate water supply operations by having different utilities work together, and, in the case of sewage, toward coordination with river management based on amendments to the Flood Protection Law, etc. and catchment-wide management based on the Comprehensive Basin-Wide Planning of Sewerage Systems. Accordingly, these moves toward smarter system-wide operation through the interconnection and interoperation of areas that were previously managed independently also has an affinity with the symbiotic autonomous decentralization concept. One example is a trial conducted by Hitachi on the use of water supply operation plans for demand response, with further investigation underway on assisting interoperation between utilities. In the case of sewage, Hitachi is also trialing energy-efficient sewage treatment control as a technology for facilitating regional coordination.

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ABOUT THE AUTHORS

Hideyuki Tadokoro, P.E.Jp

Public Control Systems Engineering Department, Control System Platform Division, Services & Platforms Business Unit, Hitachi, Ltd. He is currently engaged in the development of SCADA systems for water supply and sewage. Mr. Tadokoro is a member of The Institute of Electrical Engineers of Japan (IEEJ) and The Society of Instrument and Control Engineers (SICE).

Kenji Fujii

Infrastructure Systems Research Department, Center for Technology Innovation – Systems Engineering, Research & Development Group, Hitachi, Ltd. He is currently engaged in the research and development of information and control systems for water supply and sewage. Mr. Fujii is a member of the IEEJ.

Takeshi Takemoto, P.E.Jp

Public Control Systems Engineering Department, Control System Platform Division, Services & Platforms Business Unit, Hitachi, Ltd. He is currently engaged in the development of SCADA systems for water supply and sewage. Mr. Takemoto is a member of The Society of Chemical Engineers, Japan and the IEEJ.

Ichirou Yamanoi, Ph.D.

Process Engineering Research Department, Center for Technology Innovation – Materials, Research & Development Group, Hitachi, Ltd. He is currently engaged in the research and development of SCADA and information systems for sewage. Dr. Yamanoi is a member of The Society of Environmental Instrumentation Control and Automation (EICA).

Hitoshi Saito

Strategy & Planning Department, Social Infrastructure Systems Division, Water & Environment Solutions Division, Water Business Unit, Hitachi, Ltd. He is currently engaged in the water supply and sewage system business.

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