Assertion: fuel cell's efficiency | /r/HasProperty | 50%
Facets:
Source sentences:
text: If the fuel cell produces 0.615 volts when connected to a light bulb, the efficiency of the fuel cell with that load is 50% ( 0.615 1.229 × 100 ) .
text: The problem has been that reverse operation of a fuel cell optimised for power production used to have a low efficiency (around 50%), making it less efficient than conventional alkaline electrolysis (also technically a one-way type of fuel cell).