News India Live, Digital Desk: The biggest problem with renewable energy like solar and wind energy is that when there is no sunshine or no wind, the power supply stops. Finnish company solved this problem ‘Nitricity’ Has discovered. They have created the world’s first commercial ‘sand battery’, which can store electricity for weeks using sand.
How does this ‘Golden Age’ technology work? (The Working Process)
A sand battery is not a traditional chemical battery, but it is a thermal energy storage The system is there.
energy harvesting: Excess electricity from solar panels or windmills is used to heat the sand.
Heat Transfer: Sand filled in a large insulated steel silo (tank) 600°C Is heated to a temperature higher than.
Storage: Sand is very efficient in retaining heat for a long time. It can store this heat for months.
Use: When electricity is needed, this heat can be recovered to heat homes or to generate electricity by running a turbine.
Why is this a ‘boon’ for India? (Importance for India)
For a developing country like India, which is short of lithium and has huge reserves of solar energy, this technology could prove to be revolutionary:
Affordable Cost: Cost of sand batteries compared to lithium-ion batteries 10 times less Is. Sand is easily available everywhere.
long life span: Lithium batteries deteriorate in 5-10 years, while sand batteries have a lifespan of 30 to 50 years can happen till
Environment friendly: It does not contain any toxic chemicals and the old sand can be reused or recycled.
agricultural sector: This could prove to be a boon for cold storage and irrigation systems in Indian villages.
Sand Battery vs Lithium-Ion Battery
| Speciality | sand battery | lithium-ion battery |
|---|---|---|
| main content | ordinary sand and steel | Lithium, Cobalt, Nickel |
| form of storage | Heat | chemical energy |
| Cost | Very low (Low Cost) | Expensive |
| Security | no risk of explosion | risk of fire |
| Use | for large scale grids | For mobile and electric cars |
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