Upper South Island · South Island

North Canterbury

NZ energy/Regions/North Canterbury (MainPower NZ)
36.5 MW Solar capacity (2026)
$335 Modelled bill (May 2026)
0.19 Retail HHI (Aug 2026)

North Canterbury is in the Upper South Island on the South Island. Network operator: MainPower NZ.

Retail market concentration (HHI)

Herfindahl–Hirschman index of retailer ICP share by network region.

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Modelled residential electricity bills

Monthly total bill for a standard-use customer, $/month.

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Distributed solar capacity ranked by region

Installed solar capacity, kW.

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