This document discusses different forms of energy including renewable and non-renewable sources. It explains that energy exists in many forms such as electricity, heat, light and sound. Non-renewable sources like coal, natural gas and nuclear energy cannot be easily replenished. Renewable sources include solar, wind, hydroelectric, geothermal and tidal energy which are replenished naturally. Solar energy is one of the most abundant renewable resources and can be harnessed using photovoltaic and solar thermal technologies to generate electricity or heat. The document also discusses the importance of energy conservation and reducing energy crisis through judicious utilization of resources.

1. ENERGY

2. We rely on the energy
stored in food to keep us
alive and on the energy
locked within fuels to drive
our machines and
industries. Energy exist in
many different forms,
including electricity, sound,
heat and light

3. Originated from
Greek word Energeia
Unit - Joule

4. SOURCES
OF ENERGY
Non-
renewable
renewable

5. Non- renewable are
resources that are not
easily replenished by the
environment. They are
also known as fossil fuels.
Non- renewable sources

6. COAL
The main component of the
coal is CARBON
Liquefied natural gas
Compressed natural gas
Liquefied petroleum gas
NATURAL GAS

7. Nuclear energy is the
energy held in the
nucleus of an atom; it
can be obtained
through two types of
reactions - fission and
fusion
NUCLEAR ENERGY

8. Renewable source
Renewable resources
are resources that are
replenished by the
environment over
relatively short periods
of time.

9. GREEN ENERGYGreen energy is the
energy formed from a
sustainable, renewable
energy sources that are
environmentally friendly
with no limited supply.
This has triggered
concern for less polluting
environmental friendly
energy sources like wind,
solar, geothermal,
biofuels and
hydropower.

10. Solar energy is the most abundant, renewable
energy source in the world. Solar energy
systems refer to technologies that convert the
sun's heat or light to another form of energy
for use
SOLAR ENERGY

11. Photovoltaic Thermal
Photovoltaic technology directly
converts sunlight into electricity
through solar panels made of
semiconductor cells
Solar thermal technology
harnesses its heat.
This heat is used directly
or converted into mechanical
energy and in turn electricity
TECHNOLOGIES THAT HARNESS SOLAR ENERGY

12. Tidal power converts the energy
from the natural rise and fall of the
tides into electricity. Tidal energy is
one of the oldest forms of energy
generation. Tides are caused by the
combined effects of gravitational
forces exerted by the Moon, the
Sun, and the rotation of the Earth.
TIDAL ENERGY

13. Hydropower or
hydroelectricity
refers to the
conversion of energy
from flowing water
into electricity. It is
considered a
renewable energy
source because the
water cycle is
constantly renewed
by the sun
HYDRO POWER

14. Geothermal energy refers to the
production of energy using the
internal heat of the Earth’s crust.
This heat comes from the
radioactive decay of minerals and
continual heat loss from the earth’s
original formation.
GEOTHERMAL ENERGY

15. WIND MILLS
Wind Energy
captures the
natural wind in our
environment
through turbines
and converts the
air’s motion into
mechanical energy
for electricity

16. ENERGY CRISIS
Energy crisis is the
consequences of increasing
demand but decreasing
availability

17. WHAT CAN WE DO FOR REDUCING ENERGY CRISIS ?
• Judicious utilization of energy
• Maximum utilization of solar
energy
• Minimizing the wastage of water
• Making use of public
transportation as far as possible.
• Construction and beautifying of
houses and roads in a scientific
manner.
• Controlling the street lamp with
LDR
• Timely repairing of machines
• Ensuring maximum efficiency of
machine used.
• Limiting size of newly
constructed buildings

18. FOR BETTER FUTURE,
THINK ABOUT ENERGY CONSERVATION

19. RUKHIYA.P
Keyi sahib training college