Windenergy Why wind can meet all our energy needs Jonna Bloeme Marjolein Groeneveld Roos van der...
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Transcript of Windenergy Why wind can meet all our energy needs Jonna Bloeme Marjolein Groeneveld Roos van der...
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