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  # 969214 18-Jan-2014 01:22
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heapsort: P.S. I think the Powerswitch estimates can be very unreliable for Powershop. I definitely save more than that website suggests. My guess is Powerswitch probably doesn't take into account all the specials - and maybe it also misses other benefits like Powershop's Christchurch weekend rebate? (Great for my household as we use a lot more electricity on weekends - electric mower, catch up the washing, etc.)

Powerswitch is clear on this: they do two estimates of which one will be provided to you and indicated on the notes to the Powerswitch results:


  1. at the estimated base tariff which is what you get if you do nothing
  2. including the monthly Simple Saver specials but not the other specials or power packs.
The problem with the forecast estimates that Powerswitch gets from Powershop is that there is no standard tariff that is unchanged during a period. Therefore the Powerswitch estimates have a greater margin of error for Powershop.

Overall, if people not planning to prepurchase and get all the specials then they will not save as much. I more than doubled the savings estimated by Powerswitch by prepurchasing power packs and buying all specials I saw. There wasn't one special that wasn't worth getting although sometimes the additional saving on a small special was only a matter of cents rather than dollars. From memory, there were specials which were less than 10 units at a small saving per KWh. In such cases the cost of your time spent buying the special could be greater than the saving.

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  # 969220 18-Jan-2014 06:18
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My cheapest bill over the last 2 years is at least $250 (including early payment discount). It looks like my first month with power shop is only $130. Nice!

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