Definition of Hydroelectric Energy
Hydroelectric power plants convert the power of running water into electricity. Thanks to, the amount of energy in flowing water determine flow or speed of flowing water. Also, water flowing in a large river carries a large amount of energy. Besides, when we drop the water from a very high point, energy can be obtained. In both ways, water that taken into the pipes flows into the turbines.
Therefore, the turbine with a propeller that it is necessary for generating electricity provide rotation of the turbine. Also, turbines connect to generators, and the turbines convert the mechanical energy to electrical energy.
How Hydroelectric Energy Power Plants Work?
What is hydroelectric power plants? We call hydroelectric power plans as power plants that produce electricity from the motion energy of water. When we the water is accumulated in dams, potential energy is given to water.
When the water that has potential energy is released from the high, the potential energy of the water converts the kinetic energy. Therefore, the water turns the turbines. When the turbines spin, the generator connected to the turbines turn and produce electrical energy.
In hydroelectric power plants, the potential energy of the water is converted to the kinetic energy. Then, the kinetic energy is converted to electrical energy.
Hydroelectric Power Facts
- To obtain energy from renewable water,
- No greenhouse gas emissions,
- Construction can be done with local facilities,
- Long service life and lack of fuel costs,
- Low operational maintenance costs,
- Creating employment opportunities,
- It is the most important renewable energy source in terms of revitalizing economic and social structure in rural areas.
How to Hydroelectric Power Plants Classified?
We can classify the hydroelectric power plants in 6 ways;
According to Storage Structures;
- Storage (reservoir) HEPPs
- River type (regulator) HEPPs
According to the falls
- Low overhead HEPPs (H <10m)
- Medium overheads (H = 10-50 m)
- High-rated HEPPs (H> less than 50 m)
According to forces
- Minimal (micro) capacity (<100 kW)
- Small (Mini) capacity (100-1000 kW)
- Medium capacity (1000-10000 kW)
- Large capacity (> 10000 kW)
According to the Status of the National Electrical System
- Base Load HEPP
- Puant (HEPP) Load HEPP
- Both Base and Puant (Pik) Load HEPP
According to Dam Body Type
- Weighted Concrete HEPP
- Concrete Belt HEPP
- Soil filled body hoses etc.
- Above Ground HEPP
- Underground HEPP
- Semi-Embedded or Batik HEPP