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Sunday, Oct. 14, 2012
'SMART GRID/COMMUNITY' SPECIAL
NEDO collaborates on global projects
Japan-U.S. effort may lead to standardization of smart grid technologies for worldwide use
Construction at a demonstration site in Los Alamos, New Mexico, for the Japan-U.S. Collaborative Smart Grid Project, which is being carried out jointly by the New Energy and Industrial Technology Development Organization (NEDO), the New Mexico state government and other participants, has been completed and full-scale operation has started. The project in New Mexico is NEDO's first overseas smart community project, and its demonstration site in Albuquerque is already in operation.
(1) Japan-U.S. Collaborative Smart Grid Project in New Mexico
This joint project is being carried out in collaboration with the State of New Mexico government and Los Alamos National Laboratory and Sandia National Laboratories, which operate under the authority of the U.S. Department of Energy. NEDO, which is responsible for two sites in Los Alamos and Albuquerque out of the project's five sites, has budgeted approximately ¥4.8 billion (about ¥3 billion for Los Alamos and ¥1.8 billion for Albuquerque) for the five-year period of fiscal year 2009 to FY2013.
With the aim of expanding the introduction of new energy and promoting energy conservation efforts, leading-edge technologies based on Japanese knowhow, including large-scale stationary batteries for power grids and energy management systems, will be demonstrated. The project also aims to contribute to international standardization activities for smart grid systems, which are steadily progressing on a global scale, and to further promote the dissemination of Japanese smart grid technologies throughout the world.
In order to address potential issues that may occur when renewable energy that produces a fluctuating output is connected to power grids on a large scale, the following activities will be carried out:
1) Demonstration of a smart grid with a high rate of photovoltaic power, introduction using storage batteries and demand response
2) Demonstration of a smart house that will be a key element of a community using demand response (the world's most advanced system that will operate in conjunction with photovoltaic power generation forecasting and demand response signals from power grids)
3) Demonstration of a smart building that will be a key component of a smart grid using demand response (a highly functional building equipped with a low-carbon, high-quality power supply system that can stabilize the fluctuating output of photovoltaic power generation systems and is capable of stand-alone operation in emergency situations, such as power outages)
In addition to quantitatively assessing the effectiveness of demand response, the capacity of storage batteries necessary to absorb fluctuations in photovoltaic power generation will be identified through the above activities in order to establish the most suitable smart grid for the environment. Furthermore, it is hoped that the data collected through the project will be utilized in the design of optimum systems for other areas, thereby promoting the rapid deployment of smart grids.
(2) Demonstration in Los Alamos
Following the launch of the demonstration site in Albuquerque on May 17, 11 companies* commissioned by NEDO will carry out smart grid and smart house demonstrations at the Los Alamos site.
Using a newly constructed 1 megawatt photovoltaic (PV) system, the smart grid demonstration will establish an environment that makes it possible to change the introduction rate of PV power by switching three distribution lines. By making the best use of the environment, a combined system of a local energy management system (micro EMS) and demand response for residential houses with 1.8 MW of battery storage will be established for smart house use. The system will demonstrate technologies to absorb PV output fluctuations as well as to harmonize and optimally control the power flow of the distribution lines with the existing power system.
In the smart house demonstration, a home energy management system (HEMS) will be established and demonstrated using a smart house equipped with a 3.4 kilowatt PV power generation system, a 24 kilowatt-hour lithium ion battery, power storage devices such as a heat pump water heater, and smart home appliances, including air conditioners and LED lighting. The HEMS will be used to optimally control power in conjunction with PV power generation and in-home demand forecasting as well as demand response signals from a micro EMS.
Since its establishment, NEDO has carried out activities to develop and introduce renewable energy. Developing a smart community system that can be utilized around the world will require cooperative relationships with organizations overseas, and NEDO is well positioned to play a leading role in the smart community field by promoting international demonstration projects. While cooperating in four national projects in Japan, NEDO is working toward realization of international standardization for smart grid systems through the activities of the Japan Smart Community Alliance.
*Companies participating in the demonstrations at the Los Alamos site:
• Toshiba Corp. and Toshiba International Corp. (smart grid demonstration site coordination, micro EMS, comprehensive system)
Kyocera Corp. (smart house demonstration site coordination, HEMS, large-scale PV)
Itochu Techno-Solutions Corp. (PV forecasting),
Sharp Corp. (HEMS, smart electrical appliances)
NGK Insulators, Ltd. (NAS battery system)
NEC Corp. (high-speed PLC, equipment to stabilize supply and demand)
Hitachi, Ltd. (lead-acid battery system, large-scale PCS for PV)
Collective research conducted by Accenture, Itochu, NTT Facilities, Inc., Kyocera, Cyber Defense Institute, Inc., Toshiba, NEC, Hitachi.
This is an edited version of an article from the official website of NEDO. For more information, visit www.nedo.go.jp .