Quick answer: Compare Contact Energy and Mercury sign-up deals for NZ households. For promo codes and referral links, see Contact Energy coupon and Mercury Energy referral.

Electricity promotions change often — always confirm eligibility on the provider's website before you switch.

Quick comparison

Contact EnergyMercury Energy
Main offer typeBroadband bundle credits (e.g. BROADBAND25)Join / referral rewards (Mercury Rewards)
Typical audienceExisting + new Contact electricity customers adding broadbandHouseholds joining Mercury on eligible plans
Our coupon pageContact promo →Mercury referral →

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.


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