Mercury Energy Referral Code NZ 2026: Sign-Up Bonus & Rewards Explained

Join Mercury Energy for 100% renewable power and access to Mercury Rewards. Earn points on every bill.

Quick answer: Switch to Mercury for 100% renewable electricity (hydro, geothermal, wind) and Mercury Rewards points on bills. Compare vs Contact before you switch.

What is Mercury Energy?

Mercury is a major NZ electricity retailer generating 100% renewable power. Customers use the Mercury app, earn Mercury Rewards, and can refer friends per Mercury's programme rules.

Mercury referral at a glance

Detail	Value
Energy	100% renewable (Mercury generation mix)
Rewards	Mercury Rewards points on power bills
Signup	Join via referral
Compare	Contact Energy bundles broadband/mobile · NZ power deals

Whether you searched "Mercury Energy promo code", "Mercury coupon", "Mercury discount code", or "Mercury Energy voucher NZ", you are looking for the same thing: the sign-up or referral benefit. Mercury attaches it via a referral link — there is no code to type at checkout. For a broader explanation of how these terms differ, see promo code vs referral code.

Kiwis search "Mercury bonus code", "Mercury sign-up bonus", and "Mercury referral code" — here's the honest answer: Mercury doesn't publish a typed bonus code you enter at checkout. Joining happens through a quote at mercury.co.nz/join, and any joining credit Mercury is currently running appears on that quote screen. Mercury's ongoing value is Mercury Rewards — points on your bills, redeemed per the programme rules — rather than a large upfront cash credit.

If a big first-year credit is what you're after, the Contact Energy broadband bundle (up to $600 over 12 months) is the larger headline offer we track — or weigh both against plain low rates on our power comparison.

Mercury has also promoted perks like free power days through its app and Rewards programme at times — confirm what's currently running on mercury.co.nz.

What Mercury Energy offers

Mercury generates and sells renewable electricity.

100% renewable generation mix (hydro, geothermal, wind)
Mercury Rewards — points on power bills and referrals
App — usage and billing
Solar & EV products on site for some customers

Mercury vs Contact (quick)

Feature	Mercury	Contact
Highlight	Renewable generation, Rewards	Bundle offers (power + broadband/mobile)
This site	Join + Rewards	See Contact page for bundle codes

How to claim this offer

Use Mercury join link.
Enter your address and usage details for a quote.
Complete switch from your current retailer (Mercury handles transfer).
Set up Mercury app and Rewards account.
Refer friends later for bonus points per live programme rules.

Terms

Prices and plans vary by region and usage
Referral / Rewards rules on mercury.co.nz

Last updated: May 2026

Frequently asked questions

Mercury Energy coupon vs promo code vs discount code — what's the difference?
Those search terms mean the same thing on deal sites: a way to save via this page's offer. Confirm whether Mercury Energy uses a referral link, in-app code, or checkout promo on their official site.

Is the Mercury Energy offer for new customers only?
Most referral and promo offers are for new accounts who have not used the service before. Check the provider's terms if you have an old account.

How do I claim this Mercury Energy offer?
Follow the numbered steps under How to claim this offer on this page, or use the button above. Confirm current rules on the official site before signing up.

What do I get with the Mercury referral?
New customers joining via referral link can access Mercury Rewards based on current Mercury program rules.

How does Mercury compare to other NZ power companies?
Mercury offers 100% renewable energy and a rewards program. Compare with Contact Energy (broadband and bundle offers on contact.co.nz/offer) to find the best deal for your household.

Is Mercury energy renewable?
Yes, Mercury generates 100% renewable electricity from hydro, geothermal, and wind sources in New Zealand.

What is Mercury Rewards?
Mercury Rewards is a points program where you earn points on your power bills and can earn bonus points by referring friends.

Does Mercury have a sign-up bonus?
Mercury focuses on rewards points rather than large upfront cash credits. For bundle savings, see Contact Energy (broadband code BROADBAND25 and/or mobile on contact.co.nz/offer).

Is Mercury a good power company?
Mercury is one of NZ's largest power companies, offering 100% renewable energy, a rewards program, and an easy-to-use app for managing your account.

What is a Mercury free power day?
Mercury has promoted free power day perks through its app and Mercury Rewards programme at times. Availability and rules change — check the Mercury app or mercury.co.nz for what's currently offered.

Is there a Mercury bonus code to type in?
No. Mercury doesn't use typed checkout codes — you join via a quote at mercury.co.nz/join, and any current joining credit shows on the quote screen. Referral benefits are attached by link.