Aurora has now changed its tune - so costs reflect the maintenance and administrative costs of supplying each region.
That will see a modest reduction for those in Queenstown and Central Otago.
The first price change will take effect in April.
General manager customer and engagement Sian Sutton said: "During consultation, we heard very clearly concerns from customers and stakeholders in Central Otago and Queenstown who felt regional pricing was unfair, and who questioned the basis for allocating different costs to different regions.
"We agree with our customers' views that prices must be set fairly and based on efficient costs to deliver the services they use. We listened to that feedback and are making changes in two stages as a result."
An independent review of Aurora's network previously identified more than 300 overhead line, pole and crossarm failures between 2015 and 2018. Sixty-one were classed as serious-hazard events.
The Dunedin City Council-owned company was fined $5 million last year for breaching quality standards in 2016-19.