When our cost of purchased power changes:
We determine the effect of the change;
We adjust the purchased power component of your bill accordingly;
We add the purchased power adjustment to the existing electric power rate and put it into effect immediately;
The purchased power adjustment remains in effect until we determine future adjustments are necessary;
We must publish in the local newspaper and post at our office a notice of the purchase power adjustment and the basis for the adjustment; and
Our decision to make a purchased power adjustment must be final.