New Zealand has around 20 electricity retailers competing for residential customers — all of them buying from the same national grid. The physical electricity delivered to your home is identical regardless of which company you choose. What differs is the price you pay per kilowatt-hour (kWh), the daily line charge, contract terms, and customer service.
The average NZ household uses around 7,000–8,000 kWh of electricity per year. At current rates, that translates to roughly $2,000–$2,800 per year depending on your retailer, region, and plan. Switching to a cheaper plan can save $200–$500 a year with zero change to the electricity you receive.
Use Powerswitch (powerswitch.org.nz) — Consumer NZ's free, independent electricity comparison tool. Enter your ICP number (on your current bill) to get personalised quotes from every retailer available at your address. This is the only tool that gives you accurate pricing for your specific location and usage.
Power Cluster Guides
- Best Power Companies NZ 2026
- Power Company Comparison NZ
- Electricity Prices NZ 2026
- How to Switch Power Companies in NZ
- Fixed vs Open Power Plans NZ
- How to Lower Your Power Bill NZ
- Power & Broadband Bundles NZ
Power Company Reviews
- Meridian Energy Review NZ — NZ’s largest gentailer, 100% renewable
- Contact Energy Review NZ — Second largest, hydro and geothermal
- Genesis Energy Review NZ — NZ-owned, large customer base
- Mercury Energy Review NZ — Strong on EV plans and hydro
- Electric Kiwi Review NZ — “Hour of Power” free daily electricity
- Flick Electric Review NZ — Spot price transparency
- Nova Energy Review NZ — Competitive independent retailer
- Ecotricity Review NZ — 100% certified renewable
- Frank Energy Review NZ — Budget value retailer
- Globug Review NZ — Prepay electricity with no bills
Understanding Your Power Bill
Unit Rate (kWh)
The per-kilowatt-hour rate is what you pay for the actual electricity you use. In 2026, residential rates in NZ range from roughly 28–40 cents per kWh depending on the retailer, region, and plan type. Retailers in urban areas (Auckland, Wellington) sometimes offer lower unit rates but higher daily charges.
Daily/Line Charge
Regardless of how much power you use, you pay a fixed daily charge for being connected to the grid. This typically ranges from 45–85 cents per day ($165–$310/year). Some retailers offer low daily charges with higher unit rates — which suits high-usage households — while others do the reverse.
What a Good Deal Looks Like (2026)
For a typical Auckland 3-bedroom home using ~7,500 kWh/year:
- A competitive plan should cost around $1,900–$2,200/year (including GST)
- If you’re paying significantly more than this, use Powerswitch to check alternatives
- Off-peak (ripple control) hot water discounts can save an additional $200–$350/year
The Five Gentailers
New Zealand’s electricity market is dominated by five large “gentailers” — companies that both generate and retail electricity:
| Gentailer | Generation type | Market share |
|---|---|---|
| Meridian Energy | Hydro, wind (100% renewable) | ~30% |
| Contact Energy | Hydro, geothermal, gas peakers | ~25% |
| Genesis Energy | Gas, coal, hydro | ~18% |
| Mercury Energy | Hydro, geothermal | ~15% |
| Trustpower/Manawa | Hydro | ~5% |
The gentailers sell both to the wholesale market and directly to residential customers. Independent retailers (Electric Kiwi, Flick, Nova, Ecotricity, Frank Energy) buy from the wholesale market and compete on price and service.
Should You Choose a Gentailer or Independent Retailer?
Gentailers (Meridian, Contact, Genesis, Mercury) tend to offer:
- Larger brand recognition and established customer service
- More plan variety (fixed, variable, EV, time-of-use)
- Bundled offers with broadband or gas
Independent retailers (Electric Kiwi, Flick, Nova, Frank Energy) tend to offer:
- Sharper pricing, especially for price-conscious customers
- Innovative plan structures (spot pricing, Hour of Power)
- Easier switching and simpler products
The best retailer for you depends on your usage pattern, your region, and how much flexibility you want. The only way to know is to run your details through Powerswitch.