RENEWABLE ENERGIES

Olga Sánchez & Wafa Akkouh

Index:

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

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.

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.

Types of Renewables energiesEolic 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.

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.

Webgraphy...● http://www.investinspain.org/invest/en/sectors/renewable-energy/ove

rview/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