The advantages and disadvantage s of wind energy Advantages and disadvantages of wind energy
Dec 22, 2015
Advantages●A renewable energy source●Doesn't produce greenhouse gases●Practically no costs when in use●Doesn't produce waste
Disadvantages●Requires a lot of space●Loud noise●Can spoil the landscape●Needs specific conditions (speed of wind)●Can't be utilized all the time●Storage of electricity can be difficult (only in batteries or as thermal energy in water)●Might kill birds or bats●Low efficiency
Usage in Finland● Wind energy is only 0,7% of all produced
energy
● The aim is to increase the share of wind power
to 6-7% of all of the energy we use (2020)
Wind power plants● In Finland there are● about 120 wind power● plants
● The biggest are in● Kemi, Hailuoto, Korsnäs,● Kuivaniemi and Reposaari
● The power plant in Kemi● has 10 turbines. The size of each● turbine is 3 MW and together they● produce 80 000 MWh energy per year
http://www.innopower.fi/tuulivoimalat/kemin_tuulivoimapuisto
Locations● The windiest areas
are located on the west coast
● → power plants are there
● Most of them are near Oulu and Åland Islands
OuluKemi
ÅlandIslands
ÅlandIslands
Reasons for low usage● Planning is complicated and it takes a lot of
time● The amount of wind varies during the year● Snow and coldness during winter can damage
turbines● We have two nuclear power plants (four
reactors in total), which produce approx. 23% of total electricity produced in Finland
Private owned wind turbines● Some of us have
small private turbines● They are used in:
– Farming– Households– Summer cottages– Sailing boats
● The price of a small wind turbine is about 12000 €
● The size of them varies from 100 W to 2 kW
Production and the amount of installations grows every year
Installed capacity (MW)Production (GWh)
Production index (%)
Sources
● http://www.tuulivoimayhdistys.fi● http://www.tuulivoimatieto.fi● http://www.tuuliatlas.fi● http://www.tuulivoimaopas.fi● http://www.innopower.fi/tuulivoimalat/