Probably good enough for where they are at now, but if they were to use a ball mill on site it would require anywhere from a 1000- 6000 HP motor depending on its size, eg: a 16' dia. X 30" long ball mill uses a 2700 kw motor and can process approx. 100tph. That would require quite a large generator (stationary diesel perhaps). A smaller mill (10' X14') would only require 1000 hp motor with a capacity of about 35 tph. Would be nice to know what they have at Ester Dome or Eagle Creek. Seem to remember reading they could only process 250tpd, so it must be like the smaller unit I mentioned. Most turbines run on nat. gas/steam, and there are many manufacturers. When you discuss power supply I only know enough to make me dangerous! ha ha ha ha