A bill adjustment in an electricity bill refers to a revenue adjustment amount resulting from departmental intervention in a billing dispute between a company and a residential customer. However, there are other types of adjustments that can appear on an electricity bill. For example, a power cost adjustment (PCA) can appear as an additional charge or credit on a monthly electric bill, and it is based on changes in the cost to generate power. Other adjustments that may appear on an electricity bill include state tax adjustment surcharges, distribution charges, energy efficiency charges, and non-utility generation charges.