Hoistman called Mine Foreman at 10:00 pm report power out. Foreman arrived at mine at 10:15; called Safety Supervisor; was on the phone with MSHA 800 number. Foreman spoke with all supervisors underground; all crews were reported at #3 stations by 10:50. Crews not sent back to work until 11:45 after confirmation the #3 hoist was running.