WindenergyWhy wind can meet all our energy needs

Jonna BloemeMarjolein GroeneveldRoos van der Linde

Eveline Wiegers

Windenergy is produced by wind turbines Wind turbines use wind to produce energy Wind flows over the blades The blades are connected to drive shaft Drive shaft is connected to a electric

generator Electricity is generated and then sent

through wires to households

Windenergy: how it works

Blades

Electric generator

Drive shaft

Windenergy: how it works

Windturbines used to be very expensive but now the price is decreasing

The government also helps with this, they are giving subsidies to support the use of windturbines

What does it cost?

What does it cost?

Wind Energy in the Netherlands nowadays

2000 Wind turbines 4% of the total Dutch electricity need That means : enough energy to

provide 1.2 million households annually in the Netherlands with energy.

Overview

Year Total amount of windmills

Total amount of power in MW

2005 1710 1224

2006 1794 1453

2007 1855 1641

2008 1942 1921

2009 1873 1993

2010 1867 2002

Overview

Future goals in the Netherlands

Energy capacity must increase from 2000 MW in 2012 to 6000 MW in 2020.

New target to use 14% of wind energy in 2020

Planned new wind platforms in The Netherlands

2 new windplatform are planned in The Netherlands

These windplatforms will provide 100 MW each.

These projects are set up in Flevoland and the Noordoostpolder.

The EU imposed this target: By 2020, 20% of the energy generated must

be sustainable 12% to 14% must be wind energy

Future goals for Europe

Wind Energy worldwide nowadays:

Worldwide capacity of wind powered generator was 238 GW

= 2.5% of worldwide electricity usage.

Future goals worldwide

Annual growth in new installations: 27.6%

Expected growth in usage: 2013: 3.35% 2018: 8%

Some people find wind mills a ‘pollution’ to the landscape> they take lots of space and are often considered as ugly

Wind mills make a noise Every year, 20 000 birds die, because they

fly into to the rotor of a wind mill The costs of placing wind mills are very high

Disadvantages of windenergy

There will be a shortage of fossil fuels in the future. This is not the case with wind energy; there is always wind

With the combustion of fossil fuels, CO2 is released. As we all know CO2 has a negative effect to the greenhouse effect.

Turning wind energy into electricity is relatively cheap and easy

Benefits of wind energy

Wind mills can be placed everywhere Wind energy is the cheapest way of

generating energy When having our own energy supply, we are

not dependent on instable political countries

Benefits of wind energy

www.windenergie.nl http://

en.wikipedia.org/wiki/Wind_power_in_the_European_Union

Sources