FadeToBlack&Gold
Kettle Medallion
The usage charge on a TOU rate isn't going to be the killer - generally the per kWh charge during peak times is similar to current standard rates or only moderately higher - the off-peak usage charge is just heavily discounted because overnight load drops so low that marginal pricing can turn negative at times (but the generation keeps going because of production tax credits).
This is my experience with DTE's changes. The off-peak rates are actually quite a bit lower than standard, and the peak rate is only slightly higher than our previous combined rate. They have yet to announce demand-based charges, but I think it's inevitable. IT/Big Data and computing power are at the point where so-called "dynamic pricing" based on real-time demand is taking over volatile industries and markets. If there's an opportunity to nail particularly heavy power consumers during that 4-8p window, they have the means to determine who those households are, and they're going to do it.