The Bosch associate Ralf Gaudig in front of two large tanks that are part of the Braderup vanadium redox flow battery
The Bosch associate Ralf Gaudig in front of two large tanks that are part of the Braderup vanadium redox flow battery
The Bosch associate Ralf Gaudig in front of two large tanks that are part of the Braderup vanadium redox flow battery
The Bosch associate Ralf Gaudig in front of two large tanks that are part of the Braderup vanadium redox flow battery
The Bosch associate Ralf Gaudig in front of two large tanks that are part of the Braderup vanadium redox flow battery

Bosch Provides Storage Systems for Commercial and Utility Projects

July 14, 2014
From mid-July, a custom-made hybrid system comprising two high-performance battery types will store excess electricity generated at a community wind farm in Braderup, Germany.

Bosch is bringing its German-engineered energy storage solution to the North American market to help customers better integrate renewables, lower utility bills, and supply higher quality power.

From mid-July, a custom-made hybrid system comprising two high-performance battery types will store excess electricity generated at a community wind farm in Braderup, Germany. Bosch will supply the project with a compound battery made up of lithium-ion and vanadium redox flow components, along with the complete system controls. This compound battery will store electrical energy when power grids on the windy coast are overloaded and cannot transport any more electricity.

"With this concept, we are expanding the range of possible applications for our storage systems," says Cordelia Thielitz, head of Bosch's stationary storage business area.

The purpose of the storage system is to enable windpower to feed into the grid at all times—regardless of the wind's intensity. If too much wind power is being generated, the hybrid storage system absorbs the excess and feeds it into the grid when too little is being generated.

Bosch's Cordelia Thielitz explains the venture's approach as follows: "Lithium-ion batteries are sometimes called "high-power batteries" because of their ability to absorb and release large amounts of electrical energy over a short period of time, while vanadium redox flow, or "high-energy" batteries store large amounts of energy very efficiently over long periods of time...The resulting storage facility is an important milestone on the road to the renewable energy supply of the future. We want to demonstrate that wind-turbine power generation does not have to be shut down when the grid is overloaded. This advance brings the goal of a renewable, efficient, and more distributed energy system several steps closer."

The storage facility, which is to be situated on former farmland, has a total output of 2,325 kW and a total capacity of 3,000 kWh. "That is enough to cover the electricity needs of 40 average single-family homes for seven days and nights," says Bosch's Johannes Kostka, the project's commercial manager.

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