Editor: Katerine G., Editor & Data Researcher · Research & publishing: Electric Consumer Editorial Team · Data retrieved · Sources named on this page: EIA-861, EIA retail sales · How we got these numbers · Report an error
In Arizona, Tucson Electric Power Co bills 455,209 accounts, 90.7% residential, as an investor owned utility. Among the 3 Fortis utilities listed here it is cheapest for homes, -0.39 ¢ from their median.
At 800 kWh a month a Tucson Electric Power Co home pays about $125 in energy: 15.63 ¢/kWh, 4.8% above the Arizona average of 14.91 ¢.
Among the 3 Fortis utilities listed here it is cheapest for homes, -0.39 ¢ from their median.
Take the 3 Fortis utilities listed here, sorted by home price: Tucson Electric Power Co is the cheapest at 15.63 ¢, while the group median is 16.02 ¢. The most expensive is Central Hudson Gas & Elec Corp (NY) at 23.85 ¢, 8.22 ¢ above; the spread from top to bottom is 8.22 ¢.
On outage minutes it ranks 2 of 3 (1 = fewest), 68 against a group median of 68. It is the largest of them, 455,209 accounts, 1.4 times Central Hudson Gas & Elec Corp.
| Tucson Electric Power Co, 2024 | Home | Business | Bill | SAIDI |
|---|---|---|---|---|
| Tucson Electric Power Co | 15.63 ¢/kWh | 15.58 ¢/kWh | $125at 800 kWh | 68 minSAIDI |
| Arizona average against this company, which is 7 of 10 on priceLowest in this table | -0.72 ¢/kWhcompany 4.8% above | -3.35 ¢/kWhcompany 27.4% above | -$6a month at 800 kWh | +13 mincompany 13 below |
| UNS Electric, Inc | 16.02 ¢/kWhcompany 2.4% below | 15.23 ¢/kWhcompany 2.3% above | $1283 more than company | 60 mincompany 8 above |
No 2025 early-release row for Tucson Electric Power Co; 2024 stays the latest year.
No 2025 line exists yet for Tucson Electric Power Co, so 15.63 ¢/kWh and a SAIDI of 68 minutes (2024, 412,747 homes) are the latest figures.
Tucson Electric Power Co serves 412,747 homes in Arizona. At 800 kWh a month that is about 249 kg of CO₂, or 2,992 kg a year, at the Arizona plant rate, state generation and not this utility: Arizona generation mix.
11.51 ¢ in 2015, 15.63 ¢ in 2024 (+35.8%); Arizona 12.13 to 14.91 ¢.
| Year | Tucson Electric Power Co | Gap to Arizona residential | Gap to U.S. residential |
|---|---|---|---|
| 2015 | 11.51 | -0.62 | -1.14 |
| 2016 | 11.13 | -1.02 | -1.42 |
| 2017 | 12.05 | -0.39 | -0.84 |
| 2018 | 12.58 | -0.19 | -0.29 |
| 2019 | 12.19 | -0.24 | -0.82 |
| 2020 | 12.37 | +0.10 | -0.78 |
| 2021 | 13.40 | +0.86 | -0.26 |
| 2022 | 13.73 | +0.71 | -1.31 |
| 2023 | 14.97 | +0.95 | -1.03 |
| 2024 | 15.63 | +0.72 | -0.85 |
10 rows from EIA retail sales.
CSV59 min in 2015, 68 in 2024.
| Year | Tucson Electric Power , no major events | Tucson Electric Power , all events |
|---|---|---|
| 2015 | 59 | 59 |
| 2016 | 65 | 89 |
| 2017 | 7 | 72 |
| 2018 | No data | 51 |
| 2019 | No data | 54 |
| 2020 | No data | 60 |
| 2021 | No data | 102 |
| 2022 | No data | 69 |
| 2023 | 62 | 169 |
| 2024 | 68 | 113 |
10 rows from EIA-861 survey.
CSV68.4 min, 0.69x the median reporter, rank 231 of 673.
Tucson Electric Power Co, Reliability: EIA-861 survey.
CSVTucson Electric Power Co billed homes 11.51 ¢/kWh in 2015 and 15.63 ¢ in 2024, +35.8% in all, and outpaced the Arizona average (+22.9%) by 12.9 points. Tucson Electric Power Co's sharpest move came in 2023, +9.0%. The latest year is the high at 15.63 ¢; the low was 11.13 ¢ (2016). 2024: +4.4% here, +6.3% for the Arizona average. SAIDI at Tucson Electric Power Co (major events excluded) rose from 59 minutes in 2015 to 68 in 2024, +15%; worst year 2024 at 68. Against the national median, Tucson Electric Power Co came in lower on SAIDI in 5 of 5 years, and 2024 ended at 68 minutes, -31 from the median. 2023: 169 minutes with major events, 62 without, the widest gap of any year. Tucson Electric Power Co has 6 cheaper and 3 higher-priced Arizona peers among 10 with 20,000+ homes. Next cheaper, Trico Electric Cooperative Inc, bills 14.17 ¢ (-1.46). Next higher-priced, UNS Electric, Inc, bills 16.02 ¢ (+0.39).
Customers pay 4.8% over the Arizona average and get some return: 68 outage minutes, 31% under the national median.
Home accounts at Tucson Electric Power Co went from 376,439 in 2015 to 412,747 in 2024, +9.6%. Business customers paid 1.00 times the home price in 2024 (15.58 against 15.63 ¢); the ratio was 1.09 in 2015. SAIFI went from 0.74 in 2015 to 0.85 in 2024, between 0.05 and 0.91.
The average Tucson Electric Power Co customer saw 63 outage minutes in 2013 and 68 in 2024 (+8%). The low came in 2018 at 0, the high in 2024 at 68; 8 years were filed. The Arizona median in 2024 was 68 minutes, so Tucson Electric Power Co ran level with it.
Home rates at Tucson Electric Power Co climbed from 10.37 ¢ in 2013 to 15.63 ¢ in 2024 (+50.7%), or 14.33 ¢ to 16.04 ¢ in 2025 dollars (+11.9%). Over 12,000 kWh a year the real price meant $1,720 in 2013 and $1,925 in 2024. Of 22 Arizona utilities with 1,000+ home accounts in 2024, Tucson Electric Power Co stood 15th cheapest (8th of 21 in 2013).
Tucson Electric Power Co at 68 min in 2024 and the Arizona median at 68.
Tucson Electric Power Co: 16.04 ¢ in 2025 dollars (solid) and 15.63 ¢ as billed (dashed) in 2024.
| Year, Tucson Electric Po | ¢ billed | ¢ in 2025 $ | Price place, Tucson Electri | SAIDI min | SAIFI | SAIDI place, Tucson Electri | Arizona median SAIDI |
|---|---|---|---|---|---|---|---|
| 2013 | 10.37 | 14.33 | 8 of 21 | 63 | 0.68 | 2 of 5 | 64 |
| 2014 | 11.00 | 14.96 | 10 of 22 | 57 | 0.71 | 2 of 5 | 58 |
| 2015 | 11.51 | 15.63 | 12 of 24 | 59 | 0.74 | 2 of 6 | 68 |
| 2016 | 11.13 | 14.93 | 12 of 26 | 65 | 0.91 | 4 of 7 | 65 |
| 2017 | 12.05 | 15.83 | 15 of 26 | 7 | 0.05 | 1 of 7 | 65 |
| 2018 | 12.58 | 16.12 | 17 of 27 | 0 | 0.00 | 1 of 10 | 44 |
| 2019 | 12.19 | 15.34 | 20 of 34 | – | – | – | – |
| 2020 | 12.37 | 15.39 | 12 of 22 | – | – | – | – |
| 2021 | 13.40 | 15.92 | 15 of 21 | – | – | – | – |
| 2022 | 13.73 | 15.11 | 13 of 22 | – | – | – | – |
| 2023 | 14.97 | 15.82 | 17 of 22 | 62 | 0.72 | 5 of 10 | 67 |
| 2024 | 15.63 | 16.04 | 15 of 22 | 68 | 0.85 | 6 of 11 | 68 |
Tucson Electric Power Co, EIA utility 24211: EIA-861, CPI-U.
CSV| Tucson Electric Power Co sector | Accounts | Rate ¢/kWh | Gap to Arizona ¢/kWh |
|---|---|---|---|
| Residential | 412,747 | 15.63 | +0.72 |
| Commercial | 41,903 | 15.58 | +3.35 |
| Year | Home accounts, Tucson Electric Power | Home ¢ | Business ¢ | Ratio | SAIDI | SAIFI |
|---|---|---|---|---|---|---|
| 2015 | 376,439 | 11.51 | 12.57 | 1.09 | 59 | 0.74 |
| 2016 | 378,992 | 11.13 | 12.19 | 1.09 | 65 | 0.91 |
| 2017 | 381,556 | 12.05 | 12.77 | 1.06 | 7 | 0.05 |
| 2018 | 385,414 | 12.58 | 13.22 | 1.05 | No data | No data |
| 2019 | 387,409 | 12.19 | 12.76 | 1.05 | No data | No data |
| 2020 | 394,673 | 12.37 | 13.03 | 1.05 | No data | No data |
| 2021 | 398,938 | 13.40 | 13.22 | 0.99 | No data | No data |
| 2022 | 403,028 | 13.73 | 13.71 | 1.00 | No data | No data |
| 2023 | 407,394 | 14.97 | 14.94 | 1.00 | 62 | 0.72 |
| 2024 | 412,747 | 15.63 | 15.58 | 1.00 | 68 | 0.85 |
| Utility near Tucson Electric Power Co on price | SAIDI min, gap to Tucson Electric Power Co | Home ¢, gap to Tucson Electric Power Co | Gap % to Tucson Electric Power Co | Accounts, Tucson Electric Power Co = 1 |
|---|---|---|---|---|
| 4. Sulphur Springs Valley E C Inc | +56 | -2.14 | -13.7% | 0.12 |
| 5. Electrical Dist No3 Pinal County | +18 | -1.70 | -10.9% | 0.08 |
| 6. Trico Electric Cooperative Inc | +15 | -1.46 | -9.4% | 0.12 |
| 7. Tucson Electric Power Co (this utility) | 68 | 15.63 | - | 1.00 |
| 8. UNS Electric, Inc | -8 | +0.39 | +2.5% | 0.24 |
| 9. Arizona Public Service Co | +13 | +0.82 | +5.2% | 3.08 |
| 10. Navajo Tribal Utility Authority | No data | +1.00 | +6.4% | 0.07 |
| Class at Tucson Electric Power Co | Accounts | Of Tucson Electric Power Co accounts | Of Tucson Electric Power Co MWh sold | kWh a year per Tucson Electric Power Co account |
|---|---|---|---|---|
| Residential | 412,747 | 90.7% | 44.2% | 9,604 |
| Commercial | 41,903 | 9.2% | 22.0% | 47,016 |
| Industrial and other | 558 | 0.12% | 33.8% | 5,430,183 |
| Tucson Electric Power Co and its neighbours on price | SAIDI min, gap to Tucson Electric Power Co | Home ¢, gap to Tucson Electric Power Co | Accounts, Tucson Electric Power Co = 1 |
|---|---|---|---|
| 1. Tucson Electric Power Co (AZ, this utility) | 68 | 15.63 | 1.00 |
| 2. UNS Electric, Inc (AZ) | -8 | +0.39 | 0.24 |
| 3. Central Hudson Gas & Elec Corp (NY) | +99 | +8.22 | 0.71 |
| Measure | Tucson Electric Power Co | Arizona context | Tucson Electric Power Co detail |
|---|---|---|---|
| Tucson Electric Power Co home meters on AMI | 97.0% | Arizona 93.4% | 444,849 of 458,715 meters |
| Home meters, AMR (drive-by read) | 13,846 | Arizona figure not published | 3.0% of meters |
| Time-of-use rate for Tucson Electric Power Co homes | Offered | 10 of 11 Arizona utilities offer one | 62,252 homes on dynamic pricing, 15.08% of 412,747 |
| Net-metered installations | 52,425 | 98% residential | 124.3 homes per 1,000 accounts, 9.6 kW average |
| kWh | Share of a 800 kWh month | Cost a month at 15.63 ¢ | vs U.S. | Cost a year |
|---|---|---|---|---|
| 250 | 31% | $39.08 | -$2.12 | $469 |
| 500 | 62% | $78.15 | -$4.25 | $938 |
| 750 | 94% | $117.23 | -$6.37 | $1,407 |
| 1,000 | 125% | $156.30 | -$8.50 | $1,876 |
| 1,500 | 187% | $234.46 | -$12.74 | $2,813 |
| 2,000 | 250% | $312.61 | -$16.99 | $3,751 |
| Measure, Tucson Electric Powe | No events | All events | Converted |
|---|---|---|---|
| SAIDI minutes | 68.4 | 113.2 | 1.14 h |
| SAIFI interruptions | 0.847 | 0.992 | 1.18 yr apart |
| CAIDI minutes | 80.7 | 114.2 | 1.35 h |
2 Arizona counties, region WECC:
Arizona other states: 2 of 2 counties of Tucson Electric Power Co drawn
Tucson Electric Power Co: 2 counties listed by EIA-861, Census 2023 outlines.
CSV455,209 accounts in 2024: residential 412,747, commercial 41,903, industrial 558.
In 2024 homes paid 15.63 cents; against the Arizona average that is +4.8%.
SAIDI 68.4 min and SAIFI 0.85 a year, major events excluded; ratio to the national median 0.69, CAIDI 81 min.
52,425 installations with 505.5 MW, of which residential installations number 51,300.
800 kWh at 15.63 cents comes to about $125, energy only.
Rank 7 of 10 in Arizona on price, +4.8% against the state average; 6 charge less than 15.63 ¢.
Homes take 44.2% of 8,964,184 MWh, commercial accounts 22.0%, industrial and other 33.8%; the 41,903 commercial accounts use 47,016 kWh each, 4.9 times a home.
444,849 of 458,715 home meters are AMI, 97.0%. Tucson Electric Power Co offers a home time-of-use rate; 62,252 customers use dynamic pricing, 15.08% of its homes.
3rd cheapest of 10 in 2015, 7th of 10 in 2024; its price rose 35.8% while Arizona rose 22.9%.
Place 1 of 3 on home price at 15.63 ¢ (Fortis group); median 16.02 ¢, cheapest member 15.63 ¢.
Not yet: 15.63 cents and 68 SAIDI minutes (2024) remain the newest Tucson Electric Power Co record.
Home prices nearest to Tucson Electric Power Co at 15.63 ¢/kWh in 2024, among companies with a page here, any state.
14 home plan records, energy charges: 7.0 to 21.2 ¢/kWh.
Who offers time-of-use and tiered rates (17 Apr 2026 snapshot).