richms: No they are not, if you do the figures on 2000+ kWH a month, they are one of the most expensive. Cheapest I have found is genesis on the day/night tarrif now that I have the meter that can do it.
Agreed, sort of.
I've just swapped one of my businesses from Powershop back to Genesis - the 10% prompt payment discount, plus the lower rates means a big saving. The fact they also do gas (Mercury will do residential but not commercial gas, go figure) with the 10% discount also gives us a saving when compared to our current provider Nova Gas.
Do your research, Power shop didn't work for me, however that's just one scenario.

