environmental

1. ENV-108
GROUP PRESENTATION

2. RENEWABLE
ENERGY

3. WHAT IS RENEWABLE ENERGY?
Renewable energy is generally defined as
energy that comes from resources which
are naturally replenished on a human
timescale.

4. EXAMPLES
 Sunlight,
 Wind
 Rain
 Tides and
 Geothermal heat etc—which are
renewable (naturally replenished).

5. FROM WHERE IT IS DERIVED?
 Renewable energy is derived from natural
processes that are replenished
constantly. In its various forms.
 It derives directly from the sun, or from
heat generated deep within the earth.
 Included in the definition is electricity
and heat generated from solar, wind,
ocean, biomass, geothermal resources,
and biofuels and hydrogen derived from
renewable resources.

6. CONTRIBUTION OF RENEWABLE ENERGY
 Based on REN21's 2014 report,
renewables contributed
-19 percent to our energy consumption
-22 percent to our electricity
generation in 2012 and 2013,
respectively.

7. CONTRIBUTION OF RENEWABLE ENERGY
Both, modern renewables, such as
hydro, wind, solar and biofuels, as well
as traditional biomass, contributed in
about equal parts to the global energy
supply.

8. OBJECTIVE
 Our main objective is to make a better use
of natural sources by replenished these
naturally.
 Natural resources are decreasing day by
day for the increasing number of
population. So we have to make a better
use of the natural resources.
 Renewable energy is important as the
alternative of Natural resources.

9. SOME OVERVIEW OF RENEWABLE RESOURCES
1. Nuclear Power
2. Compressed Natural Gas
3. Biomass
4. Geothermal Power
5. Radiant Energy
6. Hydroelectricity
7. Wind Power
8. Solar Power
9. Wave Power
10. Tidal Power

10. NUCLEAR POWER
Nuclear power is
any nuclear
technology
designed to extract
usable energy from
atomic nuclei via
controlled nuclear
reactions(nuclear
fission).

11. ABOUT NUCLEAR POWER
 In 2007, 14% of the world’s electricity
came from nuclear power, with the U.S.,
France, and Japan together accounting
for 56.5% of nuclear generated electricity.
 There are 439 nuclear power reactors in
operation in the world, operating in 31
countries.

12. USAGE OF NUCLEAR POWER
 For producing steam which can be used
for mechanical purposes. Like for running
engines.
 Can generate electricity which can be
used in any sector.

13. SOLAR POWER
-Solar power is harnessing the suns energy
to produce ELECTRICITY

14. SOLAR POWER ADVANTAGES
 - It One of the fastest growing energy
sources
 - Solar cells are becoming more efficient
 - Transportable and flexible
 - Allowing for easy installation

15. SOLAR POWER ADVANTAGES
We can run any electronic devices using
solar power
 Solar systems that use large-scale
mirrors to heat water, or produce high
temperatures
 Generate steam, which is used to turn a
generator.

16. WIND POWER
A wind turbine
converts the
kinetic energy
(motion) of wind
into mechanical
energy that is used
to generate
electricity.

17. GEOTHERMAL POWER
The process involves trapping heat underground,
then building energy that rises near the surface in
the form of heat. When this heat naturally creates
hot water or steam, it is harnessed and then used to
turn a steam turbine to generate electricity.

18. BIOMASS
 Biomass, as a renewable energy source, refers to living
and recently dead biological material that can be used as
fuel or for industrial production.
 Biomass refers to plant matter grown to generate
electricity or produce for example trash such as dead
trees and branches

19. BIOMASS

20. HYDROELECTRICITY

21. HYDROELECTRICITY
 The production of power through use of the
gravitational force of falling or flowing water
 It is the most widely used form of renewable
energy.
 Once a hydroelectric complex is constructed,
the project produces no direct waste.
 Popular alternative energy source, especially in
remote areas where other power sources are
not viable.