My electricity is $0.09 per kilowatt and I don't really care about noise and heat.
a bit too close to the level where it would not be advisable to start investing in mining, but you're still in
with one s5 your income would be
0.012 a day at current diff, which are about $2.7, and consume about 14 kw per day, 14 kw at 0.09 each is around $1.2
so 2.7-1.2 = $1.5 net of profit per day, or $45 per month, one antminers s5, cost around 350, therefore roi is around 8 months
if you find 8 months not a very long term, then you can go ahead and start mining, otherwise just leave the whole mining thing to big farms as it is right now