- CEMS, EV Charging and Links to BEMS Fully Underway
Link-ups between CEMS (Community Energy Management System), which represents the core of the Keihanna Eco-City Next-Generation Energy and Social System Verification Experiment Project, and consumer EMS (Energy Management Systems) have cut over to actual operations. An EV-charging management system (EV Management Center) and BEMS (Building Energy Management Systems) were added in the winter of 2012 and the verification experiments were carried out on a test basis in accordance with DR (Demand Response) requests issued by CEMS, and the results of this are now available.
- Achieving Targeted Load Curves with the Use of Storage Battery Systems in Residential Houses
Operation of the CEMS (Community Energy Management System), which is the nucleus of the Keihanna Eco-City Next-Generation Energy and Social System Verification Experiment Project, is now firmly underway. Verification experiments linking HEMS (Home Energy Management Systems), BEMS (Building Energy Management Systems) and EV-charging management systems began in the winter of fiscal 2012, and the procedures for confirming community monitoring, DR (Demand Response) and other basic functions have been completed. Verification experiments into peak-hour reductions and power supply demand adjustment began in earnest in fiscal 2013.
- Measuring Electricity Consumption by Each Household Appliance with Power Consumption Measurement Taps
The Keihanna Eco-City Next-Generation Energy and Social Systems Verification Experiment Project is involved in an attempt to reduce by half the amount of CO2 emitted by households into which solar power generation systems, electricity storage systems, fuel cells, heat-pump water heaters and other such equipment have been installed. Power consumption measurement taps, etc., were installed into each household in fiscal 2012 to measure the amount of electricity each home is using. This resulted in it being discovered that despite using the same electrical appliances, the methods of usage were diversified between families. This led to the transition across to the next stage in fiscal 2013, which involves advice being provided on saving energy through the efficient use of home appliances in order to both save energy and reduce CO2 emissions.
|Name of city||Kansai Bunka Gakujutsu Kenkyu Toshi (Kansai Science City)|
|Area||1.541 million Km2(as of April 2012)|
|Population||244,872 (as of April 2012)|
|Locations for operational experiments||The Seika and Nishi Kizu districts (Kyotanabe City / Kizugawa City / Seika Town, Kyoto Prefecture)|
|Area covered by operational experiments||77,370km2(as of April 2012)|
|Population of areas involved in the operational experiments||102,024 (as of April 2012)|
|Number of households involved in the operational experiments||Introduction of HEMS: 14 households; Introduction of systems to render energy use visible: approximately 100 households; Power demand response (DR): Approximately 700 households (all as of April 2012)|
|Number of workplaces involved in the operational experiments||Introduction of BEMS: One facility (Keihanna Plaza; as of April 2012)|
|Number of EV/PHV involved in the operational experiments||60 (as of April 2012)|
Characteristics of the region
Kansai Bunka Gakujutsu Kenkyu Toshi (Kansai Science City) is situated in a hilly region that spans three prefectures (Kyoto, Osaka, and Nara Prefectures) and is the location of eight municipalities. It is a new city constructed by a national project to serve as a center of culture, learning, and research, a new cultural capital intended to open paths into the future. In addition to the Advanced Telecommunications Research Institute International and the Kansai-kan of the National Diet Library, the city is home to a large number of company laboratories and other research institutes, and possesses strong technological and communications capacity.
Overview of the project
In addition to its research institutes, universities, companies and other institutions, Kansai Science City is proceeding with a large-scale housing development, making it the ideal location for testing and verifying the outcomes of research on advanced technologies and new social systems in cooperation with residents. Making full use of this environment, the project seeks to develop a Community Energy Management System (CEMS) that will minimize CO2 emissions without affecting quality of life or convenience for residents, looking towards the construction of a next-generation energy society. Beginning with assisting in recovery from the Great East Japan Earthquake, the project will extend the developed model to the rest of the world.
The optimization of energy supply and demand on a global scale. Realization of this goal will involve the development of systems including a Community Energy Management System (CEMS) for comprehensive management of energy in the community, a Home EMS (HEMS) to manage energy supply and demand in the home, power demand response (DR) for energy management including large-scale DR, a Building EMS (BEMS) to manage energy in buildings, an electric vehicle (EV) charging management system, and V2X (Vehicle to X). The linkage of these systems with the grid power. Specifically, in homes and buildings,
we will conduct Demand Response linking the CEMS to HEMS, BEMS, and EV charging management centers in order to verify the effect in saving energy and reducing CO2 emissions. In the EV charging management system, we will verify the peak shift effect to be obtained from deriving the charging location and time from the location of the EV and the remaining power in the storage batteries. In the area of V2X, we will verify the use of EV storage batteries in relation to the supply and demand of power to factories. Based on the outcomes, we will create a business around the Keihanna Eco City Model, and extend it to the reconstruction of cities in the Tohoku area and promote its application in the rest of the world.
Subjects of the operational experiments
CEMS, HEMS, power DR, BEMS, EV management system, V2X