10. Loss due to Power Transmission and Distribution
Facilities
• As per Ethiopia standard power loss is considered as 10%
• Power transmission and distribution loss
80kW × 10% = 8kW
12. Reserve Capacity for System Stability and Failure
• As per Ethiopia standard Reserved system capacity is
considered as 10%
• Reserve Capacity for System Stability and Failure
80kW × 10% = 8kW
13. Total Demand for generation
• Maximum Load at Demand End = 80KW
• Power transmission and distribution loss = 8KW
• Reserve Capacity for System Stability and Failure = 8kW
• Total = 96KW
• So our Micro Hydro-Electric power plant will generate
100KW which satisfies the total demand.
14. Technical Details of Power Plant
• Total Energy Consumption Demand as per World data
• Technical Design Parameters
• Components Description
18. Components Of The Plant And Their
Role In Its Working
Functioning of a hydroelectric power plant
Hydroelectricity is produced in a hydroelectric power
plant. In this plant, the water is released from a high
location. The potential energy present in the water is
converted into kinetic energy, which is then used to
rotate the blades of a turbine. The turbine is hooked to
the generator which produces electricity.
19. Components Of The Plant And Their Role
In Its Working
Here are the basic components of a conventional
hydropower plant:
20. The main components of hydroelectric
power plant
• A) The reservoir: Water from a natural water body like a
river is stored in the reservoir. This reservoir is built at a
level higher than the turbine.
• B) Forebay
• Purpose: Acts as a buffer and additional sedimentation
area; regulates water flow into the penstock.
• Design: A small tank or reservoir equipped with a spillway
to manage overflow and a trash rack to stop debris.
21. The main components of hydroelectric
power plant
• c) The penstock: Purpose: Transports water from the
intake or forebay down to the turbine under pressure.
• Design: A long pipeline made from materials capable of
withstanding high pressure, such as steel or reinforced
plastic. The diameter and strength are determined based
on the flow rate and the head
• .d) The turbine: The kinetic energy of the running water
turns the blades of the turbine. The turbine can be either
a Pelton Wheel Model or a Centrifugal type. The turbine
has a shaft connected to the generator.
22. The main components of hydroelectric
power plant
• The most common type of turbine for hydropower plants
is the Francis Turbine, which looks like a big disc with
curved blades. A turbine can weigh as much as 172 tons
and turn at a rate of 90 revolutions per minute (rpm),
according to the Foundation for Water & Energy
Education (FWEE).
• e) The generator: A shaft runs from the turbine to the
generator. When the blades of the turbine rotate, the
shaft turns a motor which produces electric current in the
generator.
24. The main components of hydroelectric
power plant
Giant magnets rotate past copper coils, producing
alternating current (AC) by moving electrons. (You'll
learn more about how the generator works later.)
f) Power lines: The power produced in the generator
is sent to various power distribution stations through
the power lines.
25. The main components of hydroelectric
power plant
The Generator
The heart of the hydroelectric power plant is the generator.
Most hydropower plants have several of these generators.