FCF2020
energyclubnz is offering free club fees ($5/week) for new signups until 2020 with code FCF2020. This is probably the best deal from them and beats the $100 credit offer.
$130 is calculated for a normal user. $62.40 for a low user.
Compare with other providers like ElectricKiwi and Powershop to see if the deals works best for you.
via today's newspaper
OK, this sounds more reasonable. With the $5 weekly payment it's not worth it.