- Reducing and Shifting Peak Demand with DR
In the "Keihanna Eco City Next-Generation Energy and Social System Verification Experiment Project," researchers partnered with consumers to run proving tests to optimize energy supply and demand throughout the region. The experiment used Demand Response (DR) to encourage users of electric vehicles (EV) to cut and shift their peak demand.
- Storage Battery Control with "Enenavi" Achieves Electric Power Supply and Demand Reflecting Participants' Intentions
As part of the Keihanna Eco City Next-Generation Energy and Social System Proving Project, a proving experiment in energy management was conducted on 14 households with photovoltaic power generation facilities, storage batteries, etc., as well as Home Energy Management Systems (HEMS). The objectives of the experiment were to reduce energy consumption and CO2 emissions and to respond to peak demand reduction and electric power supply and demand adjustment Demand Response ordered by a CEMS (Community Energy Management System). In FY2014, we implemented a system capable of reflecting participants' intentions into electric power supply and demand plans through a HEMS, and did a proving experiment to determine what kind of actions participants would choose to take.
- Proving Experiment of "1-Hour-Ahead DR" in Combination with "1-Hour-Ahead Market" for Electric Power
The circumstances and systems affecting the energy market are changing greatly. The Great East Japan Earthquake has already changed the market, and now the electric power system is being reformed and a large volume of renewable energy is being brought into the grid. The role and functions of a CEMS (Community Energy Management System), a central theme of the Next-Generation Energy and Social System Proving Project, likewise must respond to these social changes. It was decided to run a proving experiment at Keihanna Science City to examine the CEMS operating model taking account of future deregulation of the electric power industry. A proving experiment in the summer of 2014 dealt with the "1-hour-ahead market" for electric power, which the Japan Electric Power Exchange (JEPX) will introduce in 2016.
|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