Grid applications
Peak shaving, back-up power, V2G
Land based (and sometime mobile) batteries are used to assist the power grid at times of high demand, and to supplement energy in off-grid systems when alternative energy sources are not available.
While these applications have typically used lead acid batteries, today they more and more use Li-Ion batteries.
Elithion BMSs have the long term reliability required by such systems, and the ability to handle long operating times without drift in the estimated SOC.
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Large UPS (Uninterruptible Power Supply) installations provide back-up power in critical applications such as communications facilities.
Because of Li-Ion cells' longer lifetime, they are now replacing lead acid batteries.
The Elithion Lithiumotive BMS is designed to handle as many as 65000 cells, and as much as 65000 Ah and 32 kVdc, making it ideal for such applications.
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At times of high demand on the electrical grid, the utilities are forced to put into service older, more expensive, and dirtier power plants to handle the peak load.
Today, utilities are starting to rely on Distributed Resources (DR) to meet that demand, cleanly and at a lower operating cost.
Such resources include very large battery packs, including Li-Ion packs.
The Elithion Lithiumotive BMS is designed to handle as many as 65000 cells, and as much as 65 MW, making it ideal for such applications.
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Large battery pack for grid regulation
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V2G (Vehicle To grid) systems are unique in that the "charger" may not only transfer energy from the grid to a vehicle's traction pack (to charge it) but also from the pack to the grid (to enhance the supply at times of need).
Therefore, at any given time, the current may flow in either direction.
The Elithion Lithiumate and Lithiumotive BMSs are unique in that they can use bidirectional "source" current sensors, in order to accommodate both charging current from a charger and discharging current to an inverter.
Elithion staff was developing V2G products in 2007, in the early days of that technology.
Elithion products draw from that experience, by including V2G compatibility into its BMS products.
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Block diagram V2G in a Ford Escape
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