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 EnergyMercury EnergyPowershop
Main offer typeBroadband/mobile bundle credits (e.g. BROADBAND25)Join / referral rewards (Mercury Rewards)Switching credits and app-based power deals
Typical audienceContact power customers adding broadband/mobileHouseholds wanting renewable generation + RewardsUsers who like managing power in-app
Check before switchingBundle eligibility and plan exclusionsRewards terms and region-specific ratesAnnual estimate, daily charge, and Powerpack rules
Offer pageContact 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 Energy referral NZ →

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 official site →

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

  1. Get each retailer's quote for your actual address and meter type.
  2. Compare the daily charge and unit rate before sign-up credits.
  3. Subtract the first-year value of credits, such as Contact's $25/month broadband credit.
  4. Check exclusions: PrePay, broadband availability, mobile activation windows, and contract terms.
  5. 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.


Last updated: May 2026. Not financial advice. Confirm rates and offer terms with each provider.