Power prices in Cromwell

As at May 2026, electricity in Cromwell averaged 48.81c per kWh including GST. For a household using 8,000 kWh a year on a low-user plan, paying on time and taking any prompt-payment discount, with controlled hot water, that works out to roughly $3,905 a year. That is 16.1% above the national average of 42.04c, making Cromwell the 3rd most expensive of the 42 towns MBIE surveys.

Lines charges are the part of a power bill that changes most from town to town, because every area is served by a different network. In Cromwell the lines component is 24.73c per kWh — 51% of the total, against 40% nationally. The remaining 24.08c covers energy, metering and retailer costs, which vary far less by location.

Aurora Energy. Cromwell sits in the Central Otago (Aurora Energy) network reporting region, and Aurora Energy owns and maintains the poles and wires — so they are who you call in a power cut, not your power company. Their faults line is 0800 22 00 05. Your retailer is who you choose and who bills you; the lines company is fixed by where you live.

Yes. In February 2004 the Cromwell average was 17.21c per kWh; by May 2026 it was 48.81c — a rise of 184% over 22 years. Over the last twelve months alone it rose 6.9%.

Possibly. The MBIE figure is an average of publicly advertised tariffs across Cromwell, not a quote — what you pay depends on your usage, your meter and which company you are with. Switching retailer does not change the 24.73c lines component, but it does change the 24.08c that sits on top of it. Comparing the companies we work with is free and takes a couple of minutes.