Wind Presentation

Renewable energy

WIND POWER

R E N E W A B L E

P O W E R

L O C A T I O N

P R O D U C T I O N

C O S T S

We need to find alternative sources of energy, that don’t aggravate the pollution of our planet;

We can rely on the renewable energy, that uses the wind, the sun or the water in creating unpolluted sources of energy. And it works!!

1. Motivation

2. The wind energy

Wind power produces

no greenhouse gases

during operation, such as

carbon dioxide and

methane;

Wind power means

conversion of wind

energy into a useful form

of energy, such as using

wind turbines to make

electricity;

World wind generation

capacity

At the moment, there are many thousands of wind turbines operating, with a total capacity of 157,899 MW of which wind power in Europe accounts for 48% (2009).

World wind generation capacity more than quadrupled between 2000 and 2006, doubling about every three years.

81% of wind power installations are in the US and Europe.

The share of the top five countries in terms of new installations fell from 71% in 2004 to 62% in 2006, but climbed to 73% by 2008 as those countries—the United States, Germany, Spain, China, and India—have seen substantial capacity growth in the past two years (see chart).

By 2010, the World Wind Energy Association expects 160 GW of capacity to be installed worldwide, up from 73.9 GW at the end of 2006, implying an anticipated net growth rate of more than 21% per year.

Usage of wind energy

Wind turbines

produce electricity;

Wind mills

produce

mechanical power;

Wind pumps used

for pumping water

or drainage;

Wind turbines

A wind turbine is a rotating machine that converts the kinetic energy of wind into mechanical energy;

A group of wind turbines in the same location used for production of electric power create a wind farm.

Wind mills

• Wind mills are

machines that

use mechanical

energy to pump

water, cut

lumber or grind

stones;

Wind pumps

• Wind pumps are used for

pumping water, either as a

source of fresh water from

wells, or for draining low-lying

areas of land;

• Wind pumps were common

fixture on farms in semi-arid

areas;

• These days, they are still

used where electric power is

not available or too

expensive.

3. Turbine placement

A good selection of a wind turbine site is critical to

economic development of wind power and has to take in

consideration a number of factors:

availability of wind itself

availability of transmission lines

value of energy to be produced

cost of land acquisition

land use considerations

environmental impact of construction and operations

Off-shore locations may offset their higher construction

cost with higher annual load factors, thereby reducing

cost of energy produced.

4. Wind energy capacity in our

countries (2008)

4.1. Greece

4.2. Lithuania

4.3. Poland

4.4. Portugal

4.5. Romania

4.6. Spain

985 MW

54 MW

472 MW

2862 MW

10 MW

16740 MW

5. Costs

Direct costs

Generator’s price;

Land acquisition;

New transmission lines and substations;

Maintenance

Environment;

Technology development;

Scale enlargement;

Thank you for

Your attention!

Remember that

renewable energy

helps create a

better, cleaner

world!!!