- Dynamic Pricing for Households Results in Approximately 20% Savings in Electricity
The Kitakyushu Smart Community Project has been involved in a verification experiment into Dynamic Pricing since 2012, which entails encouraging normal households and businesses to save electricity by changing the cost of electricity on a daily basis in accordance with supply and demand tendencies. Dynamic Pricing was initiated 45 times for 120 households in the summer of 2013 (June to September), and the effects of around 20% in peak demand reductions were confirmed. The Dynamic Pricing project implemented for 45 businesses between July and September also recorded a 2.1% reduction effect throughout.
- Introduction of New Methods to Equalize Regional Electric Power Loads
One of the main objectives of the Kitakyushu Smart Community Project is equalizing of electric power loads throughout the entire region. In addition to existing measures such as dynamic pricing and regional storage batteries, new initiatives are being introduced. Honda R&D Co., Ltd. began a verification experiment to reduce electric power peaks using vehicle-to-home (V2H) supply of electricity from fuel cell vehicles (FCVs), while Kyuhen Co., Inc., transformer manufacturer, has begun a verification experiment on voltage regulating equipment that stabilizes the distribution network even when large amounts of solar and other renewable energy are input to the network.
- Attempting to Turn a Municipal Museum into a Smart Museum
Municipal governments are building public facilities, such as museums and art galleries, etc., that can compete against each other in order to vitalize the areas in question. The larger the facility, the larger the amount of energy required, so turning these facilities into smart facilities is extremely effective for saving energy and reducing CO2 emissions. The company currently involved in developing BEMS (Building Energy Management Systems) designed for large-scale public facilities and a verification experiment to create a smart museum model case linked to CEMS (Community Energy Management Systems) is Johnson Controls Inc.
|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