Utility costs are a significant and often underestimated household expense. NZ power prices have risen sharply since 2021, and internet prices remain relatively high by international standards. This page gives benchmark figures for electricity, gas, internet, and phone for 2026.
The average NZ household pays around $180–$240/month on electricity, $65–$110/month on internet, and $25–$80/month on mobile. Total utility costs typically run $280–$430/month depending on house size, heating method, and region. Southland and Otago households typically pay more due to colder climates requiring more heating.
Average Electricity Bills by Household Size (2026)
| Household | kWh/year (average) | Monthly bill (estimate) |
|---|---|---|
| 1 person, apartment | 2,500 – 3,500 | $90 – $130 |
| 2 people, apartment / small flat | 4,000 – 5,500 | $150 – $205 |
| 2–3 people, house | 6,000 – 8,000 | $225 – $300 |
| Family of 4, house | 8,000 – 11,000 | $300 – $410 |
| Family of 5+, large house | 11,000 – 15,000 | $410 – $560 |
These estimates assume a standard residential power plan. Electricity costs vary by:
- Retailer pricing (Genesis, Contact, Mercury, Meridian, Nova, Electric Kiwi, Flick)
- Region (spot prices, line company rates, and climate)
- Heating method (electric vs gas vs heat pump)
Power Bills by Region — Annual Average
NZ power prices vary significantly by region due to different line company costs and spot pricing:
| Region | Average annual power bill (4-person household) |
|---|---|
| Northland | $2,800 – $3,200 |
| Auckland | $2,600 – $3,000 |
| Waikato / Bay of Plenty | $2,700 – $3,100 |
| Wellington / Wairarapa | $3,000 – $3,500 |
| Nelson / Marlborough | $2,800 – $3,200 |
| Canterbury | $2,700 – $3,100 |
| Otago / Southland | $3,200 – $4,000 |
Otago and Southland households pay the most — colder winters mean higher heating demand, and network infrastructure costs are spread across smaller populations.
Gas Bills — Piped and LPG
About 30% of NZ homes use natural gas (piped), primarily in the North Island. Most South Island homes that use gas rely on LPG bottles.
| Gas type | Household size | Average monthly cost |
|---|---|---|
| Piped natural gas — 2-person home | $60 – $90 | |
| Piped natural gas — family of 4 | $95 – $150 | |
| LPG 45kg bottle | $115 – $135 per bottle (lasts 6–12 weeks for typical use) |
Internet (Broadband) Bills
NZ broadband prices are mid-range by OECD standards:
| Plan type | Monthly cost | Best for |
|---|---|---|
| Fibre 300/100 Mbps | $65 – $85 | Most households |
| Fibre 900/500 Mbps (gigabit) | $85 – $110 | Heavy users, remote workers |
| Fibre 2000 Mbps | $100 – $130 | Very heavy users |
| VDSL (non-fibre) | $55 – $80 | Areas without fibre rollout |
| Fixed wireless (rural) | $70 – $100 | Rural areas |
| Starlink (rural/remote) | $175 – $200 | Remote areas |
About 85% of NZ urban homes now have access to fibre. Main providers: Spark, Vodafone (One NZ), 2degrees, Slingshot, Skinny, MyRepublic.
Mobile Phone Plans
| Plan type | Monthly cost | Data included |
|---|---|---|
| Budget prepay/SIM (Skinny, 2degrees) | $10 – $20 | 2 – 6 GB |
| Mid-range monthly (Spark, Vodafone) | $25 – $55 | 8 – 30 GB |
| High-data / unlimited (Spark, Vodafone) | $55 – $85 | 30 GB – unlimited |
| Business plan | $40 – $90 | Varies |
Total Utility Costs — Combined Monthly Estimates
| Household type | Power | Gas | Internet | Mobile (1) | Total |
|---|---|---|---|---|---|
| Single, apartment, no gas | $110 | — | $75 | $35 | $220 |
| Couple, house, no gas | $230 | — | $80 | $70 | $380 |
| Couple, house, piped gas | $160 | $110 | $80 | $70 | $420 |
| Family of 4, house, no gas | $340 | — | $85 | $100 | $525 |
| Family of 4, house, piped gas | $220 | $130 | $85 | $100 | $535 |
How to Reduce Your Utility Bills
Power
Switch retailers: Powerswitch (powerswitch.org.nz), the Consumer NZ comparison tool, can find cheaper plans. Savings of $200–$600/year are possible just by switching.
Install a heat pump: Heat pumps are 3–5× more efficient than electric resistance heaters. Upfront cost ($2,000–$4,000) is typically recovered in 2–4 years through power savings.
Solar panels: Upfront cost of $8,000–$15,000 for a standard residential system. Government rebates exist through EECA. Payback period typically 6–10 years depending on usage and export rates.
Low-user plan: If you use under 8,000 kWh/year, check whether your retailer’s low-user plan (lower daily charge, higher per-unit rate) is cheaper than the standard plan.
Internet
Compare providers via the Spark or Vodafone websites — switching often triggers promotional pricing. Many providers offer $0 connection costs and gift cards for new customers.
Mobile
Skinny and 2degrees offer the cheapest prepay and monthly plans. If you’re on a legacy Spark or Vodafone plan, you may be significantly overpaying.