Actually, I think energy prices should go up from where they were. We're getting our energy still from predominantly coal-burning electricity plants and it's not realistic to expect that it will continue to stay the same price at the expense of the environment and our natural resources.
I kind of agree, but the way to get people to use greener energy sources is *not* to charge a premium for the green energy...the fossil fuel industries have been propped up by govvie money for decades whilst still making astronomical profits, I find it offensive that the consumer is now expected to foot the bill for the 'new' greener infrastructures...because that's what's essentially happening here.

Also, apart from peak and offpeak (which only your hot water will be connected to) unless you have a smart meter, isn't the system is unable to determine when you are actually drawing from the grid?