- Contributing to Stable Supply and Demand within the Community through Links between CEMS and BEMS
The Kitakyushu Smart Community Project is involved in the full-scale operation of verification experiments into BEMS (Building Energy Management System) in order to contribute to saving energy in buildings and stabilize the supply and demand of electricity throughout the community, and the results of these are gradually becoming apparent. The BEMS installed into the Nippon Steel & Sumikin TEXENG Co., Ltd. (formerly Nittetsu Elex Co., Ltd.) Kitakyushu Business Center Building, the Higashida-Clinic and the Nippon Steel & Sumikin Engineering Co., Ltd. Kitakyushu dormitory are being used for the full-scale verification of a supply and demand adjustment function for responding to Dynamic Pricing issued by the CEMS (Community Energy Management System), which is enhancing energy-saving capabilities through exhaustive efforts to establish the optimal control of air-conditioning and heat sources, and "visibility" for all processes.
- Achieving Peak Demand Reductions Through to Production Plans
One of the important themes for the Kitakyushu Smart Community Project is to optimize the supply and demand of energy within the community by establishing links to factories that consume vast amounts of energy. The CEMS (Community Energy Management System) being connected to FEMS (Factory Energy Management Systems), and results for verification experiments aimed at reducing peak demand right the way through to production plans, which represent the heart of manufacturing, are beginning to appear. Verification experiments into community storage batteries directly connected to the regional power grid that is operated in accordance with the Specified Supply System are also moving ahead, and indications are becoming apparent that this will provide high-efficiency at low cost by combining them with other energy-related equipment.
- Smart Community Center Controlling Electricity Supply and Demand within the Community
The Smart Community Center has been equipped with a CEMS (Community Energy Management System), which represents the core of the Kitakyushu Smart Community Project being implemented in the Higashida district of Yahatahigashi ward in Kitakyushu City. This Center is a facility for managing the supply and demand of electricity within the community. Ever since it started operations in April 2012, it has provided the foundation for a wide range of verification experiments, such as Dynamic Pricing, etc., for the Kitakyushu Smart Community Project.
|Name of city||City of Kitakyushu|
|Area||488.78km2(as of October 2011)|
|Population||971,924 (estimated as of August 2012)|
|Locations for operational experiments||The Higashida area in Yahata-Higashi ward|
|Area covered by the operational experiments||Approximately 1.2km2|
|Number of households involved in the operational experiments||225 households (as of August 2012)|
|Number of workplaces involved in the operational experiments||50 (as of August 2012)|
|Number of smart meters installed||225 (as of August 2012)|
|Level of introduction of photovoltaic generation, etc.||Storage batteries: Approximately 800 kW; Photovoltaic (PV): Approximately 400 kW; Fuel cells: Approximately 110 kW|
About the city
The City of Kitakyushu is a government-designated city located at the Northeast tip of the Kyushu area, with a population of more than 970,000 people. Following the construction of the Yawata Steel Works in 1901, the City of Kitakyushu developed as a center of heavy and chemical industry, but in the 1960s the city faced problems of air pollution and contamination of the waters of Dokai Bay. Having overcome its various problems by means of measures to respond to and prevent pollution, the city is now making efforts to tackle environmental problems. In the Higashida area of Yahata-Higashi ward, the site of the operational experiments and of the Yawata Steel Works, the city is proceeding with the development of a new city district on unused land. In addition to other attractions, this area encompasses Space World, with its theme of outer space, and a large-scale shopping center. A center for international logistics, in the new district the City of Kitakyushu is pushing ahead with the establishment of a variety of new energy distribution infrastructure, for example for the supply of energy produced by natural gas cogeneration by means of the steelworks' transmission network, and the supply of hydrogen produced by the steelworks by pipeline to areas within the district.
Overview of the project
Sketching a vision of the optimum form for community energy management, the project will seek to create the appropriate social structures for a low-carbon society by innovating lifestyles, business styles, and urban planning styles. By means of the establishment and operation of a customer energy management system called Smart Community Center or the Community "Setsuden-sho," we aim to establish mechanisms for citizens and companies to think about and participate in the process of energy distribution. We believe that making energy use visible can encourage change in lifestyles and business styles. In addition, other initiatives will include preparation for the large-scale introduction of next-generation vehicles and their linkage with public transport. The outcomes of the operational experiments in the Higashida area will be extended to other areas of the City of Kitakyushu, for example the Jono district in Kokurakita ward (approximately 20 km2 in area), which is being newly developed, and from there to the rest of Japan and the world.
Due to factors including the establishment of environmental facilities and the introduction of a range of new energy sources, the Higashida area in Yahata-Higashi ward of the City of Kitakyushu already emits 30% less CO2 than other areas in the city. This proving trial aims, by means of initiatives including further introduction of new energies, the use of community energy management, and the establishment of new transport systems, to achieve a further 20% reduction, reducing CO2 emissions to more than 50% less than other areas in the city. The following five measures are being put into effect as the concrete means of achieving this goal.
(1) Increase the rate of introduction of new energy sources, including photovoltaic generation, fuel cells, and small-scale wind power generation, to 10% or more
(2) Development of HEMS and BEMS, which can be coordinated with community energy management, increasing the efficiency of energy saving in normal homes and various types of buildings
(3) Establishment of a Community Setsuden-sho, which provides advanced energy control and optimizes total energy distribution, encompassing electric vehicles (EV), storage batteries, etc.
(4) In parallel with the establishment of charging infrastructure to facilitate large-scale introduction of EV, etc., the construction of next-generation traffic systems linking bicycles and public transport.
(5) The extension of the new technological systems and business models emerging from the operational experiments to Asia via an Asia Low-carbon Center, and then to the world
Subjects of operational experiments
Photovoltaic generation, wind power generation, heat energy, hydrogen, CEMS, BEMS, HEMS, EV, "demand bus lifestyle," Data Center, networks