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Mitsubishi companies launch smart grid demonstration system using EVs and used battery packs
12 April 2012
|System framework for M-tech Labo. Click to enlarge.|
Mitsubishi Corporation (MC), Mitsubishi Motors Corporation (MMC) and Mitsubishi Electric Corporation (Mitsubishi Electric) have completed the development and begun the operation of M-tech Labo, a smart grid demonstration system consisting of a 20 kW photovoltaic system, 5 electrically-dischargeable electric vehicles (EVs) and 80 kWh of used rechargeable batteries collected from EVs.
The purpose of this project is to demonstrate load shifting by charging at night when demand is low, storing power produced from renewable sources in rechargeable batteries, and supplying such power back to the grid when factory facilities and offices face peak demand.
|Building and components. Click to enlarge.|
MC, MMC and Mitsubishi Electric also expect that utilizing EV batteries and used rechargeable batteries, instead of expensive, dedicated batteries, will lower costs while promoting the environmental-benefits of renewable energy and EVs.
Tokyo Institute of Technology is playing an advisory role for the project. This demonstration project is part of the KEIHANNA Eco-City Next-Generation Energy and Social Systems Demonstration Project, one of the four smart grid initiatives authorized by the Ministry of Economy, Trade and Industry.
Project targets for this fiscal year include:
Reduction of electricity fluctuation at the Administration Building of MMC’s Nagoya Plant by utilizing electricity from M-tech Labo at a maximum power of 50 kW (Target: 33% reduction of the 180 kW fluctuation range).
Validation of EIS (Electric vehicle Integration System) which aggregates data and information of available dischargeable capacity and hours of each EV while still allowing the EV to be used as a mean of transportation.
The three companies will collaborate in project implementation and application of knowledge obtained. The primary roles of each company are:
MC: Study of electricity-related business utilizing of rechargeable EV batteries and used rechargeable batteries.
MMC: Research on the effect of discharging and charging on EVs, and on the necessary information and data from EVs.
Mitsubishi Electric: Validation of a system that can effectively utilize rechargeable EV batteries and used rechargeable batteries.
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