Hydroelectric generation uses the kinetic energy of flowing water to generate electricity. Water spins a turbine connected to a generator, which contains a rotor with magnets that spins inside a stator with coils of wire, inducing electricity in the coils. Most hydroelectric stations use dams to raise water levels and increase the force of falling water to spin the turbine. The generator converts this rotational energy into electrical energy that can power homes and businesses. Building a small-scale hydroelectric generator requires a turbine, generator parts like a rotor and stator, and a water source to drive the turbine. Hydroelectric power has advantages of being renewable, producing no pollution, and being very reliable.

1. Qamarul Arifin bin Haji Affandy
Marine Group A ND1

2.  Introduction
 Definition
 How does it work?
 How it is made?
 The advantage?

3. What is Hydroelectric generation?
 An electric rotating machine that transforms
mechanical power from a hydraulic turbine or
water wheel into electric power.
 Hydro power is the process of changing the
kinetic energy of flowing water in a river into
electrical power that we can use

4.  Hydroelectric power, or hydroelectricity, is
generated by the force of falling water.
 Water is needed to run a hydroelectric power-
generating unit.
 Electricity is produced by spinning
electromagnets within a generator’s wire coil
that creates a flow of electrons.
 Most hydroelectric stations use either the
natural drop of the river or build a dam across
the river to raise the water level

6.  The generator will consist of two main parts:
-The stator (this part is not moving and it is
equipped with coils of wire to collect
electricity)
-The rotor (the rotor is the part that moves and
has some powerful magnets that will induce
electricity in the coils)

7.  The two templates that contain the rotor and
stator scheme must be cut and attached to the
front and back of the cardboard
Attaching the Stator
 4 coils that are to be attached on the
cardboard(200 turns)
 Arrange the coils on the cardboard according
to the template scheme (the windings alternate
between clockwise and counter clockwise)

8. Attaching the Rotor
 4 strong magnets to be attached on the Rotor
template. Mark the south pole on two of the
magnet and the north pole of the remaining
two. The magnets should be arranged on the
template so that their polarity alternates (N-S-
N-S)
 The turbine : A cork and 8 plastic spoons are
needed to make the turbine.

9.  Generator body and Final Assembly
 Find a plastic tank to attach the rotor, the stator
and the small turbine. After you find the center
of the tank, make a hole in that place (6mm) .
 All that is need now is a stream of water so
that the turbine to spin continuously as long as
there is water to drive it. ( to produce
electiricity)

11.  IS IT RENEWABLE
 No pollution or waste produced
 Renewable energy source
 Very reliable energy source
 Environmental friendly
 The budget required on making this small scale
hydro electric generator is only around $60-
$150 .