The pressure-driven flow of electrolyte solutions in a finite length microchannel with charged surfaces creates a streaming potential. A common solid-fluid boundary condition usually considered for this system is no slip flow. We investigated the effect of slip on the transport of mobile ions and net charge density distributions, in both transient and steady-state, to contribute to understanding electrokinetic of slip flow. We found that in our geometry by increasing the slip length from 0 to 144 nm, streaming current, streaming potential, flow rate and electrokinetic energy conversion increase by 2.55, 2.44, 1.8, and 3.4 folds, accordingly. The electrokinetic energy conversion of each microchannel is in the order of picowatt, and to produce more energy an array of microchannels should be used.
