Originally posted by Pmys
Its actually laughable now. These guys put out announcements and the SP goes backwards. Probably because the announcements are just fluff pieces with no substance.
Dropping the grind size is an announcement with some substance , guessing this will drop the bond milling index from around 14 to 8 , or put another way they will only need to have around 2/3 of the power output per tonne of ore processed they previously required .
SO at a guess a saving of 6 kwh per tonne of ore(6 * $1.00 a liter diesel ) / 3 kwh per liter of fuel = $2.00 a tonne saving in diesel and another say $1.00 in depreciation/servicing
my very rough novice guess or about 3 cents a pound of copper saving
Guess the advantage is somewhat lost given the Botswana power provider looks like it is going to soon have a power supply within 12 kms of the proposed process plant so there may not be a need for higher cost diesel power .
Anyway more fool me at open I bought back in some I sold a few weeks ago but the sp goes down after I buy.
Power was quoted at 14c/lb in the PFS so if ur suggesting the change in grind size will result in only 2/3rds of the power output it may be a more significant saving than 3 cents per pound. Though I understand there are more uses of power than just crushing and grinding in th process (those being the major energy consumers).
