Power bills are set to go up from tomorrow, from as high as 5 to 10 percent.

Electricity lines charges are set to go up, following an earlier Commerce Commission decision to allow for the charges to go up.

Consumer NZ's Paul Fuge explained that these increases will vary across households, with some seeing higher increases and some seeing lower ones. 

"Because it is so convoluted and so complex and the maths is so hard, we have to run the service we've been running for 25 years now to try and help people make heads or tails of this."

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