Arizona · EIA utility 19604

USBIA-San Carlos Project

Residential electricity records · Federal

Annual average electricity bill

2024 to 2025

$179.61 → $141.57 per customer · -$38.05 change

Revenue per kWh-$27.85

Usage per customer-$10.20

Reported residential service
Year	Monthly bill	Monthly kWh	Revenue per kWh	Customers
2023 source workbook	$102.40	879.7	11.64¢	11,025
2024 source workbook	$179.61	921.6	19.49¢	11,432
2025 source workbook	$141.57	864.7	16.37¢	12,018

Changes in average monthly bill per reported customer
Periods	Earlier bill	Later bill	Bill change	Contribution from revenue per kWh	Contribution from usage
2023 to 2024	$102.40	$179.61	+$77.22	+$70.69	+$6.52
2024 to 2025	$179.61	$141.57	-$38.05	-$27.85	-$10.20

The utility reported 835 disconnection events in 2024.

One customer account can have multiple events. The rate uses the customer count in the same month of the EIA-112 survey.

2024 EIA residential nonpayment records
Month	Final notices	Disconnections	Reconnections	Customers	Disconnections per 1,000 customers
January 2024	119	117	76	11,429	10.2
February 2024	103	101	91	11,428	8.8
March 2024	86	84	67	11,436	7.3
April 2024	82	80	71	11,413	7
May 2024	117	115	88	11,432	10.1
June 2024	30	0	22	11,461	0
July 2024	31	0	1	11,462	0
August 2024	33	0	1	11,441	0
September 2024	21	0	1	11,480	0
October 2024	232	230	142	11,497	20
November 2024	31	29	30	11,567	2.5
December 2024	81	79	55	11,497	6.9

Average bill divides residential revenue by reported customers. Usage per customer divides residential kWh by the same count. Revenue per kWh divides total revenue by total kWh. Annual monthly averages divide each annual per-customer total by 12. Individual bills depend on usage, tariff and charges.
The contribution from revenue per kWh multiplies its change by the average of the two usage figures. The contribution from usage multiplies its change by the average of the two per-kWh figures. These contributions sum to the bill change before display rounding.
Utility annual rows use observed EIA-861 full-service residential data. A comparison requires matching form part and balancing-authority coverage. Monthly utility rows are reported full-service data from EIA-861M. State and national monthly totals include EIA adjustments. Compare the same calendar month across years to account for seasonality.
EIA-112 utility records match the EIA utility directory by unambiguous utility name and state. The report counts nonpayment events, including repeats on the same account. Reconnection totals cover events during the same month. State totals include EIA adjustments. An unavailable cell indicates missing or unmatched data.
Service counties come from the 2025 EIA-861 directory. A listed utility can serve part of a county. Bill averages on a utility page cover its reported customers across the state.