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Case Studies of Smart Community Demonstration Project

The Operational Experience of Sendai Microgrid in the Aftermath of the Great East Japan Earthquake: A Case Study

The Sendai Microgrid was initially designed in 2004 as a test bed for a demonstration project of NEDO. After the study was completed in 2008, the microgrid system has continued in operation under the management of NTT Facilities, Inc.

On March 11, 2011, the devastating Great East Japan Earthquake hit the Tohoku district, inflicting catastrophic damage on the district's energy supply system for a number of days. Despite the extreme devastation, the Sendai Microgrid resumed supplying power and heat to customers after a short interruption, proving its effectiveness.

This case study is an analysis of the operations of the Sendai Microgrid in the aftermath of the earthquake and will provide useful lessons for all microgrid operators and users around the world.

  • Sight of the Microgrid
    Sendai Microgrid

Japan-U.S. Collaborative Smart Grid Demonstration Project in New Mexico : Case Studies

For the period between FY2009 and FY2014, the Japan – U.S. Collaborative Smart Grid Demonstration Project in New Mexico was implemented at two sites, Los Alamos and Albuquerque in New Mexico State in the United States as NEDO’s first Overseas Smart Community Demonstration Project. The project was accomplished by a collaboration of 19 Japanese companies, the State Government of New Mexico, electric utilities, research organizations, and other stakeholders demonstrate technologies that allow for large scale penetration of renewable energy in the future, and offering some important clues on the promotion of smart grid in both Japan and the U.S. in the course of this demonstrative experiment.

This Document is a case study focusing on the efforts deployed in Los Alamos and Albuquerque and report on the suggestions made by this experience.

  • Sight of the PV system
    PV system(Los Alamos site)
  • Sight of the demonstration building
    Demonstration building (Albuquerque site)

■Integrated Energy Management System (μEMS)

  • Solution to the issue of high RES penetration
  • Demand response found to be highly effective
  • Identifying issues for further development

■Smart House Constructed in Los Alamos

  • Market potential of energy solutions for homes
  • Solution that does not interfere with the comfort and convenience of residents

■Development of transfer trip system using high-speed PLC

  • Applicability of high-speed PLC to electric system

■Contribution to power system as a microgrid

  • Microgrid that contributes to the operation of power system
  • Development of standards for grid connection of a microgrid
  • Implications for the microgrid system design
  • Capability of thermal load for the stabilization of power system

■Coordinated operation with other control system

  • Knowledge obtained from collaborative research
  • Demonstrated performance of gas engine to contribute to the grid operation
  • Possible islanding operation mainly by gas engine

Smart Community Demonstration in Malaga: A Case Study

During the period between2012 and2015, there had been a Spain-Japan joint project for smart community demonstration in Malaga, Spain, focusing on road transportation system in a society with high EV penetration. As one of the NEDO Smart Community Overseas Demonstration Projects,ZEM2ALL was launched based on the technical development collaboration agreement “Japan-Spain Innovation Program (JSIP)”concluded between NEDO and the Center for the Development of Industrial Technology (CDTI), a Spanish public organization. Under the MOU signed between NEDO and Malaga City in 2012, a total of six private companies from Spain and Japan established a consortium (ZEM2ALL) and participated in the demonstration.

The project had important implications for the process of building smart community infrastructure and implementing EV power demand management, etc. which were designed for the further spread of EV. Not only the technical demonstration of smart city, customer relationship building was also conducted actively in collaboration with Malaga City. In this sense, the demonstration project had a huge social role as well. In this Case Study, lessons learnt from the demonstration on smart community related technology and the social significance of the project were summarized.

  • EV and the quick charger image
    EV and the quick charger

■Overview of demonstration infrastructure

  • Construction of EV Smart infrastructure
  • Outreach activities

■Demonstration content and accomplishment

  • EV user behavior analysis
  • Load management by EV demand response

■Key findings

  • Significance of active involvement of the citizens
  • Possibility of DR to increase demand
  • Collection of valuable data on the EV behavior
  • Clarification of issue and Future approach

Japan - U.S. Collaborative Smart Grid Demonstration Projectin Maui Island of Hawaii State: A case study

DDuring the period between 2011 and 2016, there had been a smart community project called JUMPSmartMaui (JSM) held in the island of Maui, Hawaii, U.S. With the objective of effective utilization of renewable energy that had been penetrating on a larger scale and widespread deployment of electric vehicles (EVs), a smart community was constructed by Hawaiian and Japanese stakeholders. Smart community is a social system that integrates advanced environmental and energy technologies and provides citizens belonging to the community with sustainable, safe and secure society. In this context, it is important to have a perspective of what value had been provided to citizens by the smart community. Based on this viewpoint, this report summarizes suggestions for future smart community development derived from the activities and results of JUMPSmartMaui, especially from the engagement of citizens (i.e. volunteers participated in JUMPSmartMaui) on EV-related programs.

  • JUMP Smart Maui image
    JUMP Smart Maui

■Overview of JUMPSmartMaui project

  • Energy situation in Hawaii
  • Smart Community System developed in the project
  • Recruiting demonstration volunteers

■Fast EV Charging Station Program

  • Program overview
  • Findings and facts of the Program

■EV Charging Management Program

  • Program overview
  • Findings and facts of the Program

■V2G (EV discharge) Program

  • Program overview
  • Findings and facts of the Program

■Suggestions to future development of smart communities

  • Value of EV as distributed energy resource
  • Beyond the scope of technical demonstration
  • Toward further development of smart communities

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Last Updated : June 6, 2017