Kiwi Coupons
Compare NZ Power Deals 2026: Contact vs Mercury vs Powershop
Compare NZ power deals: Contact Energy BROADBAND25 bundle credits, Mercury Rewards, and switching offers. Rates, credits, and eligibility before you switch.
Quick answer: Compare Contact Energy, Mercury, and Powershop before you switch. Contact is strongest for broadband/mobile bundle credits such as BROADBAND25; Mercury focuses on renewable electricity + Rewards; Powershop is worth checking if you like app-based power purchasing and switching credits.
Electricity promotions change often. Always compare the annual cost after credits and confirm eligibility on the provider's website before you switch.
Quick comparison
| Contact Energy | Mercury Energy | Powershop | |
|---|---|---|---|
| Main offer type | Broadband/mobile bundle credits (e.g. BROADBAND25) | Join / referral rewards (Mercury Rewards) | Switching credits and app-based power deals |
| Typical audience | Contact power customers adding broadband/mobile | Households wanting renewable generation + Rewards | Users who like managing power in-app |
| Check before switching | Bundle eligibility and plan exclusions | Rewards terms and region-specific rates | Annual estimate, daily charge, and Powerpack rules |
| Offer page | Contact promo → | Mercury referral → | Powershop official → |
Contact Energy
Contact Energy coupon & BROADBAND25 →
Contact often promotes bundle savings when you add broadband (and sometimes mobile) to an electricity account. Our page tracks BROADBAND25 and explains the $25/month style credits described on contact.co.nz/offer.
Good fit if you: want broadband + power from one brand and can meet bundle eligibility.
Mercury Energy
Mercury promotes 100% renewable electricity positioning and Mercury Rewards on its site. Referral/join perks vary by campaign: confirm in-app when you sign up.
Good fit if you: prefer Mercury's plan structure and rewards over Contact's bundle model.
Powershop
Powershop is an electricity retailer known for app-based account management and Powerpacks. It has appeared in Search Console for Kiwi Coupons because older switching/referral content existed on the site; for now, check Powershop's official site and compare the annual estimate before relying on any historical referral amount.
Good fit if you: want app-based usage tracking and are comfortable comparing unit rates, daily charges, and Powerpack specials.
How to compare power deals properly
- Get each retailer's quote for your actual address and meter type.
- Compare the daily charge and unit rate before sign-up credits.
- Subtract the first-year value of credits, such as Contact's $25/month broadband credit.
- Check exclusions: PrePay, broadband availability, mobile activation windows, and contract terms.
- Use an independent comparison tool such as Powerswitch as a second opinion.
Headline promo codes help, but the cheapest first year is the plan with the best total annual cost after credits.
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Last updated: May 2026. Not financial advice. Confirm rates and offer terms with each provider.
Frequently asked questions
Which NZ power company has the best sign-up offer?
Offers change monthly. Contact Energy often promotes broadband and mobile bundle credits (BROADBAND25). Mercury promotes Rewards and referral-style joining. Powershop has historically used switching/referral credits. Compare live terms and total annual cost before you switch.
Is Contact Energy, Mercury, or Powershop cheaper?
Unit rates and daily charges vary by region, meter type, and usage. Sign-up credits are one-off; long-term value depends on your kWh price, daily charge, prompt-payment rules, and bundle benefits. Use Powerswitch and provider quotes for rate comparison.
What is Contact Energy BROADBAND25?
A Contact Energy broadband bundle promotion code listed on our Contact Energy coupon page. It can reduce power bills when you add eligible Contact broadband: confirm current rules on contact.co.nz/offer.
Does Mercury Energy have a referral programme?
Mercury advertises referral-style join offers and Mercury Rewards. See our Mercury Energy coupon page and mercury.co.nz for current eligibility.
Should I choose a power promo code or the cheapest rates?
Do both. A $300 credit can be beaten by a lower daily charge or lower unit rate over a year. Compare the total annual estimate after credits, not just the headline sign-up amount.