Tokyo Electric Power Company Holdings, Inc. (TEPCO HD) and Toyota Motor Corporation (Toyota) have developed a stationary storage battery system (1 MW output, 3 MWh capacity) that combines TEPCO''s operating technology and safety standards for stationary storage batteries and Toyota''s system technology for electrified vehicle storage batteries. This system will be installed in the Eurus Tashirotai Wind Farm*1 by Toyota Tsusho Corporation and Eurus Energy Holdings Corporation, and the four companies will begin a collaborative verification project around fall of this year.
The storage battery market is expected to continue growing in light of the spread of renewable energy and electrified vehicles, as well as the global trend toward carbon neutrality. It will be necessary to utilize storage batteries for electrified vehicles in the future to meet the increasing demand and needs for energy storage in environmental and economic improvement, participation in the electric power market, and as BCP measures among others, both in terms of price and quantity.
To this end, TEPCO HD and Toyota have jointly developed a stationary storage battery system that can be used in combination with existing PCS*2 by connecting multiple storage batteries for electric vehicles. The verification project will confirm the system''s operation and performance as well as feasibility, including its potential for business use in the electricity market.
TEPCO HD and Toyota will evaluate the results of the verification project and work to develop storage battery systems with an eye toward consumer-oriented energy services and balancing electricity supply and demand capabilities in order to meet the energy storage needs of customers. In addition, TEPCO HD and Toyota will promote the use of storage batteries throughout society by continuing their efforts to build an energy system through local production for local consumption, and realize a recycling-oriented society for electrified vehicle storage batteries.
Toyota Motor Corporation (Toyota) and Tokyo Electric Power Company Holdings, Inc. (TEPCO HD) have developed a stationary storage battery system (1 MW output, 3 MWh capacity) that combines Toyota’s system technology for electrified vehicle storage batteries and TEPCO’s operating technology and safety standards for stationary storage batteries. This system will be installed in the Eurus Tashirotai Wind Farm by Toyota Tsusho Corporation and Eurus Energy Holdings Corporation, and the four companies will begin a collaborative verification project around fall of this year.
The storage battery market is expected to continue growing in light of the spread of renewable energy and electrified vehicles, as well as the global trend toward carbon neutrality. It will be necessary to utilize storage batteries for electrified vehicles in the future to meet the increasing demand and needs for energy storage in environmental and economic improvement, participation in the electric power market, and as BCP measures among others, both in terms of price and quantity.
To this end, Toyota and TEPCO HD have jointly developed a stationary storage battery system that can be used in combination with existing PCS by connecting multiple storage batteries for electric vehicles. The verification project will confirm the system’s operation and performance as well as feasibility, including its potential for business use in the electricity market.
TEPCO HD will utilize the knowledge and technological capabilities it has cultivated in the electric power business to improve the utilization of renewable energy and meet the BCP needs of its customers, as well as to maintain the balance between supply and demand of electric power in order to build a stable energy supply system.
In addition to aiming for a carbon-neutral mobility society, Toyota will work with Toyota Industries Corporation, Toyota Tsusho Corporation, and Denso Corporation to utilize storage batteries for electrified vehicles that are safe, long-lasting, high quality, low cost, and high performance, as part of its various activities to realize a circular economy (an economic system based on resource recycling).
Toyota and TEPCO HD will evaluate the results of the verification project and work to develop storage battery systems with an eye toward consumer-oriented energy services and balancing electricity supply and demand capabilities in order to meet the energy storage needs of customers.
In addition, Toyota and TEPCO HD will promote the use of storage batteries throughout society by continuing their efforts to build an energy system through local production for local consumption and realize a recycling-oriented society for electrified vehicle storage batteries.
Toyota City, Japan, October 27, 2022―JERA Co., Inc. (JERA) and Toyota Motor Corporation (Toyota) announce the construction and launch of the world''s first (as of writing, according to Toyota''s investigations) large-capacity Sweep Energy Storage System. The system was built using batteries reclaimed from electrified vehicles (HEV, PHEV, BEV, FCEV) and is connected to the consumer electrical power grid. It begins operation today.
Toyota''s new storage system is equipped with a function called sweep, which allows the use of reclaimed vehicle batteries, which have significant differences in performance and capacity, to their full capacity regardless of their level of deterioration. The sweep function, developed by Toyota Central R&D Labs, Inc., is a device that can freely control energy discharge by switching electricity flow on and off (bypassing) through series-connected batteries in microseconds.
Furthermore, the sweep function also enables direct AC output from the batteries, while reusing onboard inverters eliminate the need for a power conditioner (PCS). That contributes to reducing costs and helps avoid power loss when converting from AC to DC by PCS, with the aim of improving effective energy use.
The project plans to operate grid storage batteries for recharge and discharge operations, connected to the Chubu Electric Power Grid Co., Inc. power distribution system from a facility (see below*1) at JERA''s Yokkaichi Thermal Power Station. JERA and Toyota aim to introduce approximately 100,000 kWh of supplied electricity in the mid-2020s, thereby not only reducing the overall cost of the energy storage system, but also contributing to reduction of CO2 emissions.
In addition, JERA is developing a low environmental impact process for recycling lithium-ion batteries for electrified vehicles*2, which Toyota plans to support by leveraging the expertise and knowledge it has accumulated through its battery recycling initiatives to date. By collecting used batteries and reusing resources, both companies hope to accelerate their efforts toward achieving a resource-recycling society.
JERA will continue to work proactively not only within the energy industry but also with leading companies in Japan and overseas to develop technologies such as battery storage systems and services that contribute to optimal energy utilization toward achieving a decarbonized and resource-recycling society.
Toyota actively promotes electrified vehicle adoption and pursues effective battery use, including electrified vehicle battery reuse, for the development of social infrastructure that will support the widespread adoption of electrified vehicles, expand the use of renewable energy, and promote resource recycling toward achieving carbon neutrality.
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