Assertion: fuel cell's efficiency | /r/HasProperty | almost 65%
Facets:
Source sentences:
text: Thus the overall efficiency will be almost 65%, which is a high efficiency when compared to battery and gasoline.
text: If the electricity for the car is generated by a hydroelectric plant for instance, then it is basically free (we didn't burn any fuel to generate it), and the efficiency of the electric car is about 65 percent.