DINA N. RAMONA MASTER CCE, AN I, GRUPA 661

RENEWABLE ENERGY

INTRODUCTION What is energy? The energy is the life blood of our society; If we are giving an overview of society, the well-

being of people, economy and industry depends of safe, secure, sustainable and affordable energy

I am trying to make you understand how important is the renewable energy for ours leavings ,drawing a parallel between the fossil fuels energy and renewable energy.

Present the important types of renewable energy The European Council Objectives

FOSSIL FUELS

Are formed by natural processes such as decomposition of buried dead organisms (it takes millions of year to form);

Fossil fuels contain high percentages of carbon and include coal, petroleum and natural gas;

They take millions of years to form and reserves are depleted much faster than new ones are being made;

Nonrenewable energy; Raise environmental concerns.

RENEWABLE ENERGY

They are an alternative to fossil fuels resources;

In its various forms, it derives directly from the sun, or from heat generated deep within the earth;

Electricity and heat is generated from solar, wind, ocean, hydropower, biomass, geothermal resources, and bio fuels and hydrogen derived from renewable resources.

Green energy; They are constantly replenished and will never

run out

COMPARISON BETWEEN THE TWO TYPES OF RESOURCES

FOSSIL FUELS RENEWABLE ENERGY Nonrenewable energy

– they draw on finite resources that are eventually depleted;

Raise environmental concerns: release CO2 in the atmosphere (CO2 is one of the greenhouse gases and thus contributes to global warming)

Are constantly replenished; will never run out;

Green energy It doesn’t pollute

RENEWABLE ENERGY RESOURCES

The most important renewable resources are:

- Wind Power- Hydropower- Solar Energy- Biomass(plant material)- Bio fuel- Geothermal energy

WIND ENERGY

The energy of the wind is a sustainable resource; wind will not run out;

Wind energy leaves no harmful emissions or residue in the environment.

Wind energy is one of the most promising energy technologies for the 21st century

HYDROPOWER The production of electrical

power through the use of the gravitational force of falling or flowing water;

The most common method of using energy from water is a hydroelectric dam, where water coming down through an area causes turbines to rotate and the energy is captured to run a generator.

It is a clean energy source, it does not emit toxins;

SOLAR ENERGY It is applies energy from the sun

in two forms: a) electricity; b) heat. It is one the most rapidly

growing renewable sources of electricity and thermal energy;

Effects:-reduced dependence on fossil fuels;-have a limited impact of the environment-have small required investments in production and transportation infrastructure.

BIOMASS What is it?

-biological material made from living, or recently living organisms;

-essentially carbon, hydrogen and oxygen based; -a sustainable fuel that can deliver a significant

reduction in carbon emissions when compared with fossil fuels, vital difference is one of time scale;

-includes five distinct energy sources: garbage, wood, waste, landfill gases, and alcohol fuels

BIOMASS CYCLE

BIOFUEL It is made by

a biomass conversion, biomass (refers to recently living organisms, most often referring to plants or plant-derived materials);

This biomass conversion can result in fuel in solid, liquid, or gas form

GEOTHERMAL ENERGY It is the heat of the Earth,

Geo means Earth and Thermal means Heat;

It provides clean and safe energy using little land;

It is renewable and sustainable

It conserves fossil fuels and contributes to diversity in energy sources

EUROPEAN UNION TARGETS EU favors the development of the market for

renewable energy sources for at least three reasons:

- reduce the greenhouse emissions and reduce pollution;- reduce the dependency on energy imports;- positive impact on regional and local development like encouraging employment and technological innovation

EUROPEAN UNION TARGETS According to the Directive 2009/28/EC on the

promotion of the use of energy from renewable sources there are two targets for all member states to be accomplished:

one fifth (20%) of the energy consumed in the European Union in 2020 should come from renewable sources;

10% share of renewable energy specifically in the transport sector should come from renewable energy

CONCLUSIONS Renewable energy is a clean, green

energy that is an alternative to the use of traditional energy (fossil fuels, nuclear energy).

Its effects are beneficial for protecting the environment, in reducing the dependency on nonrenewable sources of energy that are finite and are becoming more expensive, and also support development and technological innovation.