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Systems Analysis of Zaragoza Urban Water - SWITCH - Managing ...

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<strong>Systems</strong> <strong>Analysis</strong> <strong>of</strong> <strong>Zaragoza</strong> UWS<br />

Guillermo Penagos<br />

Annex 8<br />

Calculations <strong>of</strong> CO 2 emissions from electricity consumption<br />

Relative proportion <strong>of</strong><br />

each source in Spain<br />

Factors<br />

for CO 2<br />

emissions<br />

(g/kWh)<br />

Resulting emissions<br />

(g/Kwh)<br />

Energy<br />

source Current<br />

Projections<br />

form National<br />

Energy Plan<br />

(2020)<br />

Current<br />

Projections<br />

form National<br />

Energy Plan<br />

(2020)<br />

Coal 0.40 0.20 980 395.4 196.0<br />

Hydropower 0.19 0.22 9 1.7 1.9<br />

362<br />

Combined<br />

cycles 0.09 0.33<br />

33.3 119.5<br />

Wind 0.04 0.06 7 0.3 0.4<br />

Nuclear 0.27 0.19 20 5.4 3.7<br />

Gas<br />

Thermal 0.00 0.00<br />

653<br />

0.0 0.0<br />

Resulting factors for Spain 436.1 321.5<br />

Source for Spain: Ministerio de Industria, Turismo y Comercio de España (2007)<br />

Source for Emission Factors: European Commission (1995)<br />

From previous annexes electricity consumptions per year can be obtained:<br />

Year<br />

DWTP<br />

Total energy consumption per year (Gwh)<br />

Distribution<br />

network Cartuja Almozara<br />

Groundwater<br />

extraction<br />

Paper<br />

mills<br />

2001 5.07 1.01 28.25 1.02 0.38 0.74<br />

2002 5.08 0.91 28.69 0.67 0.38 0.74<br />

2003 5.43 0.82 28.68 0.82 0.38 0.74<br />

2004 6.51 0.65 29.03 0.82 0.38 0.74<br />

2005 7.02 0.62 29.33 0.66 0.38 0.74<br />

2006 6.74 0.60 28.99 0.63 0.38 0.74<br />

When current emission factor for Spain (436.1 g/Kwh) is applied to the values <strong>of</strong> total energy<br />

consumption per year the CO 2 emissions are obtained:<br />

DWTP<br />

CO 2 emissions (ton)<br />

Distribution<br />

network Cartuja Almozara<br />

Groundwater<br />

extraction<br />

Paper<br />

mills<br />

2001 2,210 442 12,315 443 164 325<br />

2002 2,215 399 12,508 292 166 325<br />

2003 2,369 355 12,506 358 165 325<br />

2004 2,840 284 12,655 356 166 325<br />

2005 3,059 271 12,789 287 164 325<br />

2006 2,939 262 12,641 275 165 325<br />

91

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