Sand Battery
2023 MAR 23
Preliminary >
Environment and Ecology > Miscellaneous > Renewable energy
Why in news?
- Finland has installed the world’s first sand battery that can store heat from renewable energy sources for months.
About Sand Battery:
- A “sand battery” is a high temperature thermal energy storage that uses sand or sand-like materials as its storage medium.
- It stores energy in sand as heat.
- Its main purpose is to work as a high-power and high-capacity reservoir for excess wind and solar energy.
- The energy is stored as heat, which can be used to heat homes, or to provide hot steam and high temperature process heat to industries that are often fossil-fuel dependent.
Why sand?
- Sand is a very effective medium for retaining heat over a long period, storing power for months at a time.
How the Sand Battery works?
PRACTICE QUESTION:
World's first commercial-scale sand battery was recently launched in which of the following country?
(a) Japan
(b) Finland
(c) Australia
(d) Israel
Answer
