This document discusses various energy storage systems including pump storage, compressed-air storage using sliding and compensated pressure systems, flywheel storage energy, thermal storage defined as storing heat or cold, solar pond storage using density gradients, using phase change materials for energy storage, and water tank storage.

1. Energy Systems & Its Analysis:
Module-2

3. Pump Storage:

4. Compressed-Air Storage:
a) Sliding Pressure System b) Compensated Pressure System

5. Flywheel Storage Energy:

6. Definition of Thermal Storage:

7. Principle of Solar Pond:

8. Principle Use of PCM (Phase Change
Materials):

9. Water Tank Storage: