energia fotovoltaica
DESCRIPTION
Energia Fotovoltaica. Energia del Sole. Energia Solare. Irraggiamento. Irraggiamento in Italia. Irraggiamento in Europa. Irraggiamento Europeo in kWh/m 2 /anno. Produzione Fotovoltaica Mondiale. Potenza Eolica installata nel mondo al 2007 : 94 GW. 100 mW. - PowerPoint PPT PresentationTRANSCRIPT
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EnergiaFotovoltaica
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Energia del Sole
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Energia Solare
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Irraggiamento
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Irraggiamento in Italia
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Irraggiamento in Europa
Irraggiamento Europeo in kWh/m2/anno
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Produzione Fotovoltaica Mondiale
Potenza Eolica installata nel mondo al 2007 : 94 GW
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100 mW
21 mW No below-bandgap absorption31 mW Excess photon energy lost as heat
Voltage available 1.1 V
Open-circuit voltage 0.6 V (0.7 V)
Recombination
Series resistance lossesFill factpr 0.75 (0.8)
Cell output 14 mW (23 mW)
Current available 44 mA
Collection efficiencyIncomplete absorpionTop-surface reflectionTop contact shading
Short-circuit current 28 mA V (41 mA)
Perdite in una cella al silicio
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Maximum Power Point Tracking (MPPT)
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OFFON
ON
TT
T
= duty cycle
Convertitori DC - DC
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Maximum Power Point Tracking (MPPT)
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2e-
2 OH-
2H2OH2
H2O
2e-Catodo
-Anodo
+
2e-
2 OH-
½ O2
Accumulo mediante idrogeno
Elettrolisi dell’acqua Cella a combustibile
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€ / kWh
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