in addition to the TOU per kwh rates, you are also dinged a per kwh charge for things such as a portion of the delivery, debt repayment, etc. the sum of these charges is approximately 6 cents / kwh. so, if your rate is 11 c/kwh, the true cost is 17 c/kwh
on top of that are the FIXED fees which you pay just for the privledge of being a hydro customer even if they dont send you a single KW of power.
so, the true cost per kwh is higher that the posted TOU rates.
i made a post about this topic on here a while back, breaking down your Hydro bill..