Being on a Momentum contract means that Momentum will not increase the retail portion of your rates for the full term of your agreement. That's the part of the bill relating to your electricity usage. The only change to your rates will be CPI and government approved pass through charges. It's also important to note that new customers who switch to SmilePower can also secure our extremely competitive rates for up to three years, and not pay any carbon tax! You can read our Terms and Conditions for more details. You'll also find some interesting information about what costs are included in a standard bill in Momentum's online Electricity Knowledge Centre.