Residential members may enroll in Rolling Average Billing at any time. This plan is based on a rolling 12-month average, which helps smooth out the dramatic changes in your monthly bills.
Here's how it works: Your electric bill is calculated by adding the current actual electric bill to the previous 11 months total and dividing by 12, plus 1/12th of the budget plan accumulated balance (the difference between what would have been paid on actual usage and what was actually paid through the Rolling Average Billing Plan). Once enrolled, members will remain in the Rolling Average Billing program until they close the account or notify GVEA that they no longer want to continue in the Rolling Average Billing program.
Since the rolling average billing amount is recalculated each month, there is no need to “settle up” at the end of the year.
Here's an example: