Stores for electrical energy © Siemens Stiftung 2018 CC BY-SA 4.0 international

Stores for electrical energy

Image

Overview graphic:
Examples for direct and indirect stores for electrical energy are shown and the stored energy form is designated.

English, Spanish (CREA), German
Image (131.9 kByte)
2019-03-21
Electrical energy should if possible be generated at precisely the time at which it is needed. This is because electrical energy is difficult and expensive to store. A distinction is made between direct and indirect stores for electrical energy. Electrical energy can only be stored directly in capacitors. With indirect storage, the electrical energy can be converted into a different form of energy which can then be stored.

Information and ideas:
Students should think about the economical use of the energy stores shown (for example: How much energy can be stored? Can the energy store be used without any problems? Where do losses occur?).
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Illustration
Chemistry; Physics; Technology
Grade 5 to 6; Grade 7 to 9; Grade 10 to 13
Middle/high school; Vocational training
Chart; Ecology; Energy supply; Environment (general); Environmental protection; Renewable energy
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© Siemens Stiftung 2018
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