Pumped-storage station
device · 1907 · Electric age
Stores energy by pumping water uphill.
What it is made of
- Water turbine — has part. Reversible hydro units.
- Electric generator — has part. At night pumps lift water uphill; by day it runs back down through turbines and generators.
Principles and materials it uses
- Universal gravitation — uses. Energy is stored as the height of water.
- Concrete — is made of. The reservoirs and dam are concrete.