15.11.2012 Views

broschuere ee zahlen en bf

broschuere ee zahlen en bf

broschuere ee zahlen en bf

SHOW MORE
SHOW LESS

You also want an ePaper? Increase the reach of your titles

YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.

WORLD: ELECTRICITY gENERATION<br />

90 R<strong>en</strong>ewable Energy Sources in Figures<br />

Global electricity g<strong>en</strong>eration from r<strong>en</strong>ewable <strong>en</strong>ergies<br />

R<strong>en</strong>ewable <strong>en</strong>ergies: shares of worldwide electricity g<strong>en</strong>eration in 2008<br />

Oil<br />

5.5 %<br />

gas<br />

21.3 %<br />

Coal 1)<br />

41.2 %<br />

Nuclear<br />

<strong>en</strong>ergy<br />

13.5 %<br />

RE share<br />

18.5 %<br />

Other 2)<br />

1.5 %<br />

Hydropower<br />

15.9 %<br />

Biomass/waste<br />

1.1 %<br />

Worldwide electricity g<strong>en</strong>eration from hydropower, at 15.9 %, accounts for more than nuclear power (13.5 %). But if one looks at<br />

the shares of primary <strong>en</strong>ergy consumption, the situation is reversed: nuclear power, with 5.8 %, accounts for a much larger share<br />

of primary <strong>en</strong>ergy consumption than hydropower with 2.2 %. The reason for this distortion is that under international agr<strong>ee</strong>m<strong>en</strong>ts,<br />

electricity from nuclear <strong>en</strong>ergy is assessed for primary <strong>en</strong>ergy purposes on the basis of an average conversion effici<strong>en</strong>cy of 33 %,<br />

whereas electricity g<strong>en</strong>eration from hydropower by the physical <strong>en</strong>ergy cont<strong>en</strong>t method is assumed to have an effici<strong>en</strong>cy of 100 %.<br />

1) Includes non-r<strong>en</strong>ewable share of waste (0.3 %)<br />

2) geothermal <strong>en</strong>ergy, solar, wind, marine <strong>en</strong>ergy<br />

Source: IEA [103]<br />

In 2008 roughly one fifth of worldwide electricity production was g<strong>en</strong>erated using r<strong>en</strong>ewable<br />

<strong>en</strong>ergy technologies. The most important r<strong>en</strong>ewable resource in the conversion sector is<br />

hydro power, which alone supplies 15.9 % of worldwide electricity volume. In the electricity<br />

sector, biog<strong>en</strong>ic <strong>en</strong>ergy sources play only a minor role with a share of 1.1 %.<br />

Although the other r<strong>en</strong>ewable <strong>en</strong>ergy technologies – geothermal, solar and wind <strong>en</strong>ergy –<br />

can boast rapid growth, in 2008 their contribution only came to 1.5 % of global electricity<br />

g<strong>en</strong>eration.

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!