This is a presentation about renewable energies.In which we have talked about all the advantages that hydraulic energy, solar photovoltaic energy and eolic energy have.

1. RENEWABLE
ENERGIES
Olga Sánchez & Wafa Akkouh

2. Index:
1. Introduction.
2. Advantages.
3. Types of Renewables Energies.
4. Opinion

3. Introduction...
Renewable energy is energy generated from natural
resources—such as sunlight, wind, rain, tides and geothermal
heat—which are renewable.
Renewable energy is continuously replenished. This energy
cannot be exhausted and is constantly renewed.
Although there are disadvantages, we mean the effort to make
this to work the result is very good, and also is very comfortable
for all of us as it doesn’t contaminate.

4. Advantages...
Renewable energy has a host of social, environmental, and economic benefits:
● have minimal or no negative environmental impact.
● not deplete natural resources.
● meet the needs of people today and in the future in an accessible,
equitable and efficient manner.
● protect air, land and water.
● have little or no net carbon or other greenhouse gas emissions.
● be safe and not burden future generations with unnecessary risk.

5. Types of Renewables energies
Eolic energy: Wind energy has been the second source of electrical
generation in Spain. Wind energy is the most mature and developed renewable
energy. It generates electricity by way of the strength of the wind using the
kinetic energy produced by air currents.
Hydraulic energy: is what is produced by the water which is stored in
reservoirs and lakes at a high altitude. If at a given moment it falls to a lower
level, this energy is transformed into kinetic energy and afterwards into
electrical energy in the hydroelectric plant.
Solar photovoltaic: Solar energy is energy supplied by nature, through
photoelectric phenomenon. Produce electricity in a direct electricity generation
way. Solar Panels cost is currently on a fast reducing track and is expected to
continue reducing. Solar PV panels has indeed a highly promising future both
for economical viability and environmental sustainability.

6. Opinion...
We think that renewables energies, which
means that they cannot be exhausted, are
the best resources to produce energy. They
don’t contaminate the environment and also
most of them are the cleanest resources.
They don’t produce waste products and
most of them are easy to store.

7. Webgraphy...
● http://www.investinspain.org/invest/en/sectors/renewable-
energy/overview/index.html
● http://newton.cnice.mec.es/newton2/Newton_pre/english/escenas/tra
bajo_energia/e_hidraulica.php
● http://www.renewableenergyworld.com/rea/blog/post/2012/12/advanta
ges-and-disadvantages-of-solar-photovoltaic-quick-pros-and-cons-of-
solar-pv
● http://windeis.anl.gov/guide/basics/
● http://www.altenergy.org/renewables/renewables.html
● http://www.renewableenergyworld.com/rea/tech/home