Just to qualify, that's also the Tier 3 rate, which everyone with a reef tank hits. To stay in base rate costs ($.12/KwH) is impossible, at something like 300 total KwH for the whole month. My house is extremely well insulated (it's new), small (1300sq/ft), and when it was just me and my wife, we still shot way past base rate, even when we were almost never home.
Many of our local club members are used to seeing $400-700 month to the power company. One of them once saw $1100 for one month! On my sumpless/chillerless 38g during the summer, I once saw $250. The new 120g hasn't seen summer yet.
And sorry for the hijack, mcrist.