Toyota, Hitachi, Panasonic Electric Works and Japan Wind Development just starting the Demonstration Project Intelligent Supply Network in the town of Rokkasho (Japan). According to the promoters, the power grid, which is isolated, only uses renewable energy sources will confirm the viability of the technologies that help make more efficient use of energy.

The project, which aims to “verify technologies that enable efficient use of energy”, will use only renewable energy sources, “as the first wind farms in the world with specific high-capacity batteries and PV power generation systems.” According to Toyota, “to create intelligent supply networks must adapt to the conditions of power supply (power supplies and transmission lines) and the communications infrastructure of each country or region, as well as introducing elements such as facilities generating renewable energy , and plug-in hybrid electric vehicles, storage batteries, EcoCut (electric heating system and water supply) and thermal storage units. ”

Well, to demonstrate the feasibility of all these solutions, Hitachi, JWD, Panasonic Electric Works and Toyota have created a grid-isolated electrical network independent of the mains-in the town of Rokkasho (Aomori Prefecture, Japan) , which has the largest capacity of wind power generation across the country. The demonstration project has just started and concluded in July 2012.

Moreover, “with an eye to rapid commercialization of the system in Japan and the rest of the world”, the project will verify the most efficient use of energy creating “specific scenarios that can only be demonstrated with an isolated network.” These scenarios are based on assumptions regarding the electrical conditions (energy sources, demand and balance supply and demand) and local conditions (remote island, climate and other specific conditions) of different countries and regions (Japan, Europe, emerging countries, resource-rich countries, etc.).

Wind, PV, electric vehicles and intelligence
The main facilities of the project is a wind power plant (Rokkashomura-Futamata), a control center that will develop a monitoring and control system to link the supply and demand, power generation and energy storage on a global level, six houses intelligent in the northern district of Town Lake Obuchi, a private distribution line (power line about eight miles and 6.6 kV and fiber optic communications, has installed a specific distribution line between the wind power plant-Rokkashomura Futamata and the district north of Town Lake Obuchi) management systems for energy and smart meters installed in six houses (with meters in other sources of electricity consumption), a photovoltaic power generation system (100 kW), battery storage (NAS batteries 100 kW class) plug-in hybrid Prius (8) and plug-in hybrid chargers.

From the supply side, and according to Toyota, where there is a surplus of electricity generated by renewable energies, is stored in the battery HUB and thermal storage units. By contrast, when there is a shortage, the battery will supply electricity HUB. The project will carry out operational adjustments HUB battery and thermal storage units, controlling the storage of energy through electricity generation projections. To adjust the demand, the project will use a method or a combination of several methods, such as induced demand by providing information and induce demand for price and demand response. Moreover, as part of network operations, there will be exchanges of electricity between smart homes.

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