Electricity retailer Flick is telling customers to move on to fixed-price plans after some were hit with power bills of up to $1500 for a single week.
A Wellington boarding house owner who used Flick was this week blindsided with a hefty bill as spot power prices surged.
Posting to a Facebook group, Matthew Wright called the price spikes "ridiculous" and asked for recommendations for an alternative electricity provider.
Wright said the bill was normally about $500 per week but in the past month it had gone up to $600.
"And now this $1500pw bill, I note on one single day last week the consumption was over $400! As we don't live there we have no control over consumption times etc," Wright said.