Yet another newbie question about solo mining

[felco]

How much hash rate per second would be needed to solo mining at this point?

[vh]

11.5PHs will give you a daily 1 in 3 chance of finding a block.    That's probably a good place to start, but will need to increase it about 5-10% every two weeks to keep up with difficulty increases.

[italianMiner72]

11.5PHs will give you a daily 1 in 3 chance of finding a block.    That's probably a good place to start, but will need to increase it about 5-10% every two weeks to keep up with difficulty increases.

well...
on eS9 is doing 13THs
to get 13,5PHs you need 1000 S9
and you will consume 1,3MWatts

I think it's a bit too much

[1.btcwonder]

At current trouble and network hash rate, Assumed your 20 KH/s, IN long-term, you must be getting a block every 4.5 days. it totally hangs on your luck! It might take you 2 days or 8 days.