Trustpower rated as the worst performer in Consumer NZ's latest survey of satisfaction with power companies.
Consumer NZ chief executive Jon Duffy said its annual survey found just 43 percent of Trustpower customers were happy with the service they were getting.
"Trustpower's rating was significantly lower than the industry average of 52 percent. It's the worst score any of the big five power companies have earned in our past three surveys," Mr Duffy said.
Contact Energy also scored below average with a satisfaction rating of only 45 percent.
The top three places went to smaller brands. Flick Electric got the highest rating with a satisfaction score of 76 percent. Nova Energy (74 percent) and Electric Kiwi (71 percent) were next. Flick Electric and Electric Kiwi are recipients of Consumer NZ's People's Choice award.*
Consumer NZ's survey found the cost of electricity remained a major cause of complaint for consumers.
"For one in three, household power costs were a big worry. Over the past year, 17 percent said they had trouble paying their power bills," Mr Duffy said.
Source: Consumer NZ