On 8-19-13 while operating a shaft sinking operation at the Pumpkin Hollow Mine. At 7:25PM the hoist experienced a loss of power due to an electrical storm. Miners were evacuated using the Grove 890rt crane with manbasket. After the electrical dept. trouble shot & reset the hoist. The hoist resumed normal operations at 9:30 PM. MSHA was notified via the 1-800 Number at at 8:05 PM.