Care credeti ca vor fi sursele de energie regenerabila cele mai eficiente?

3 votes
Fotovoltaic
 
100% / 3 votes
Eolian
 
0% / 0 votes
Geotermal
 
0% / 0 votes
Hidraulica (energia apei si a mereelor)
 
0% / 0 votes
Biomasa (biodiesel, bioetanol, biogaz)
 
0% / 0 votes


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