Get great rates, up to 12% prompt payment discount, and more*.
If you need gas, no problem. Plus you'll get a dual fuel discount when you combine it with our renewable electricity.
Stay on top of your energy usage with our weekly GEM emails. Just give us your email address and we'll take care of the rest.
If you're heading for a bill that's 30% higher than the same bill last year, we'll send you an email to let you know. No more bill surprises.
Click on the GEM tab inside My Account for loads of helpful savings tips and detailed information on how you're using power.
To make sure you don't miss out on great offers like free power days make sure you're signed up for our emails!
We’ve joined forces with Air New Zealand, and you’ll now be that bit closer to taking off every time you switch on with Mercury.
Join the e.bike movement. A fun, affordable way to keep moving. Check out our exclusive deals and join us at one of our e.bike ride events.
Fuel your EV with renewable energy at the equivalent of 30c per litre. Plug in at home and save 20% overnight.
If you want to harness the power of the sun and generate your own renewable energy, our friends at What Power Crisis will help find the right solution for you.
To make sure you're on the most cost effective price plan, we check your energy usage every 12 months.