Electrolyte + electrolysis efficiency

[nuby]

Hello,

Does adding electrolyte increase the efficiency of h2o electrolysis? If so, is there a formula to figure out ideal electrolytes, etc? Does the electrolyte weaken the H2O covalent bonds, or just allow current to flow easier between electrodes? Thanks,

 

[Borek]

Electrolytes added only increase water conductivity.