The technology that stores energy by compressing air in underground caverns is called ________ Storage.
- Two-Tier / Hybrid
- Compressed Air Energy / CAES
- Quantum
- do-while
Answer: Compressed Air Energy / CAES
CAES stores energy by compressing air during low demand, releasing through turbines during peak. Adiabatic CAES recovers compression heat for higher efficiency. Suitable for large-scale, long-duration storage. India explores CAES for renewable integration. Critical for grid-scale storage questions.