most s-9 did  .11 at the wall

so a 14th used 1540 watts at the wall

very few of the 30+ s-9's i have had did  0.098 at the wall.

here is a link to L3+ software issued by jestanop

https://bitcointalk.org/index.php?topic=3546316.0

@ mods this is very important to not delete it shows that voltage can be adjusted and power savings of 5 to 20% can be done.

So most likely the s9i is using software like this.

It also means  if you have s9's you may be able to  reduce the power they use.

I also suspect bitmain will not release the s-11 until Nov or Dec.

as this gear buries prices on both canaan and Halong.