States › Ohio › Dayton Power & Light Co
investor-owned utility · EIA utility 4922
Dayton Power & Light Co
Average price is revenue divided by sales for the sector and year; it is not a tariff rate. Reliability figures are as reported by utilities to EIA on Form 861 and may use different calculation methods. Annual figures: Form EIA-861 for 2024, final release. Monthly state figures run to July 2026.
In its Form EIA-861 filing for 2024, Dayton Power & Light Co, an investor-owned utility, reported 478,741 residential customers in Ohio, with a service territory that touches 24 counties.
Its average residential price that year was 15.32¢ per kilowatthour, 4.2% below the Ohio average of 15.99¢ and 7.0% below the US average of 16.48¢. The figure is residential revenue divided by residential sales, so it folds in fixed charges, riders and every rate schedule the utility bills under.
That works out to an average residential bill of $140.24 a month on average use of 915 kWh a month. Across Ohio the average bill was $135.16 on 846 kWh, so a bill gap reflects how much power households use as well as what each kilowatthour costs.
The price covers the 132,522 residential customers on bundled service. A further 346,219 take delivery only and buy their energy from another supplier; EIA collects just part of their bill from this respondent, so they are left out of the average.
For reliability it reported a SAIDI of 502.6 minutes per customer with major event days included and 106.4 minutes with them excluded, calculated under IEEE 1366 standard. The median among Ohio utilities reporting was 226.9 minutes with major event days; this utility's figure is 122% above that median.
The average price is up 42.6% on 2019, against up 29.2% for Ohio as a whole, and down 6.6% on 2023.
Compared with Ohio, the US and other investor-owned utilities
| Measure, 2024 | This utility | Investor-owned utilities, US median | Ohio | United States |
|---|---|---|---|---|
| Average residential price per kWh | 15.32¢ | 16.17¢ | 15.99¢ | 16.48¢ |
| Average monthly residential bill | $140.24 | $131.47 | $135.16 | $142.26 |
| Average monthly use, kWh | 915 | 787 | 846 | 863 |
| Residential price change, 1 year | -6.6% | — | +4.0% | +3.0% |
| Residential price change, 5 years | +42.6% | — | +29.2% | +26.7% |
| SAIDI, all events (minutes) | 502.6 | 278.7 | 226.9 median | 184.5 median |
| SAIDI, without major event days | 106.4 | 106.5 | 93.7 median | 99.8 median |
State and US prices, bills and use are EIA's own averages over every customer. The ownership column and the reliability columns are medians across utilities with at least 1,000 residential customers, computed on this site from the final 2024 file. Among the 6 filings by investor-owned utilities in Ohio, the median price was 16.41¢. In Ohio this utility's price ranks 20 of 36, counting from the highest.
Average price by year
Dayton Power & Light CoOhio averageUS average
Year by year
| Year | ¢ per kWh | Ohio ¢ | Monthly bill | kWh a month | Residential customers | All sales |
|---|---|---|---|---|---|---|
| 2024 | 15.32¢ | 15.99¢ | $140.24 | 915 | 478,741 | 13.8 TWh |
| 2023 | 16.40¢ | 15.38¢ | $141.33 | 862 | 475,959 | 13.3 TWh |
| 2022 | 12.59¢ | 13.85¢ | $119.31 | 948 | 472,880 | 13.9 TWh |
| 2021 | 9.26¢ | 12.77¢ | $86.85 | 938 | 471,596 | 13.8 TWh |
| 2020 | 9.65¢ | 12.29¢ | $89.52 | 927 | 468,285 | 13.5 TWh |
| 2019 | 10.74¢ | 12.38¢ | $100.00 | 931 | 465,050 | 14 TWh |
| 2018 | 10.74¢ | 12.56¢ | $105.18 | 979 | 463,617 | 14.4 TWh |
| 2017 | 11.28¢ | 12.63¢ | $99.63 | 883 | 460,570 | 13.8 TWh |
| 2016 | 12.24¢ | 12.47¢ | $112.25 | 917 | 458,402 | 14.3 TWh |
| 2015 | 12.98¢ | 12.80¢ | $116.05 | 894 | 456,690 | 13.9 TWh |
| 2014 | 13.64¢ | 12.50¢ | $124.51 | 913 | 455,987 | 14 TWh |
| 2013 | 13.39¢ | 12.01¢ | $122.00 | 911 | 455,009 | 13.9 TWh |
Bundled residential service only in the price, bill and use columns. Bill = residential revenue ÷ customers ÷ 12; use = residential sales ÷ customers ÷ 12.
Month by month
Dayton Power & Light CoOhio average
Sales by sector, 2024
| Sector | Customers | Sales | Share of sales | Revenue | ¢ per kWh, bundled |
|---|---|---|---|---|---|
| Residential | 478,741 | 5.3 TWh | 38% | $452,185,000 | 15.32¢ |
| Commercial | 60,414 | 4.9 TWh | 36% | $189,024,000 | 13.87¢ |
| Industrial | 1,680 | 3.6 TWh | 26% | $67,232,000 | 13.36¢ |
| Transportation | 1 | 3.1 GWh | 0% | $70,000 | — |
Customers, sales and revenue count every service type the utility reported (bundled, energy-only and delivery-only). The price column uses bundled service alone, because part-bill revenue would understate it. Sources of energy: 2.5 TWh in total, of which 0% was its own net generation and 2.5 TWh was bought wholesale; summer peak demand 3,280 MW.
Reliability
Minutes of sustained interruption per customer in 2024, as the utility reported them under IEEE 1366 standard. SAIFI: 1.26 interruptions per customer with major event days, 0.87 without; CAIDI 398.9 minutes per interruption. EIA's Ohio total across all reporting utilities was 510.5 minutes with major event days and 133.2 without. Major event days are storms and similar events that a utility's chosen method sets apart; methods differ, so treat comparisons as approximate. What SAIDI and SAIFI mean.
| Year | SAIDI, all events | SAIDI, no major events | SAIFI, all events | SAIFI, no major events | Method |
|---|---|---|---|---|---|
| 2024 | 502.6 | 106.4 | 1.26 | 0.87 | IEEE 1366 |
| 2023 | 170.5 | 96.2 | 0.99 | 0.74 | IEEE 1366 |
| 2022 | 182.0 | 108.9 | 1.05 | 0.86 | IEEE 1366 |
| 2021 | 179.6 | 108.0 | 0.99 | 0.81 | IEEE 1366 |
| 2020 | 174.3 | 122.3 | 1.10 | 0.97 | IEEE 1366 |
| 2019 | 607.3 | 139.7 | 1.39 | 1.07 | IEEE 1366 |
| 2018 | 194.6 | 104.1 | 1.14 | 0.91 | IEEE 1366 |
| 2017 | 197.1 | 103.3 | 1.06 | 0.85 | IEEE 1366 |
| 2016 | 150.7 | 87.9 | 0.92 | 0.77 | IEEE 1366 |
| 2015 | 118.6 | 105.8 | 0.96 | 0.92 | IEEE 1366 |
| 2014 | 127.5 | 108.9 | 0.96 | 0.92 | IEEE 1366 |
| 2013 | 127.0 | 80.0 | 0.86 | 0.74 | IEEE 1366 |
Counties in its service territory
- Auglaize County
- Brown County
- Butler County
- Champaign County
- Clark County
- Clinton County
- Darke County
- Delaware County
- Fayette County
- Greene County
- Hardin County
- Highland County
- Logan County
- Madison County
- Mercer County
- Miami County
- Montgomery County
- Pickaway County
- Preble County
- Ross County
- Shelby County
- Union County
- Van Wert County
- Warren County
Counties the utility listed on Form EIA-861 for 2024. Listing a county does not mean the utility serves all of it.
Other utilities in Ohio
| Utility | Ownership | Residential customers | ¢ per kWh | Monthly bill | SAIDI, all events | SAIDI, no major events |
|---|---|---|---|---|---|---|
| Cleveland Electric Illum Co mostly delivery | Investor-owned | 676,098 | 16.76¢ | $103.26 | 1,918.1 | 150.0 |
| Duke Energy Ohio Inc mostly delivery | Investor-owned | 693,435 | 15.00¢ | $133.28 | 321.1 | 102.5 |
| The Toledo Edison Co mostly delivery | Investor-owned | 278,814 | 16.64¢ | $123.09 | 121.0 | 95.4 |
| Ohio Edison Co mostly delivery | Investor-owned | 957,780 | 16.18¢ | $127.09 | 233.8 | 114.0 |
| Ohio Power Co mostly delivery | Investor-owned | 1,339,232 | 19.33¢ | $173.55 | 272.2 | 158.1 |
| AEP Energy energy only | Retail power marketer | 545,124 | — | — | — | — |
| NextEra Energy Services, LLC energy only | Retail power marketer | 681,301 | — | — | — | — |
| Dynegy Energy Services, LLC energy only | Retail power marketer | 704,952 | — | — | — | — |
All Ohio utilities · Investor-owned utilities nationwide
Questions and answers
How much does electricity cost from Dayton Power & Light Co?
Residential customers paid an average of 15.32¢ per kilowatthour in 2024. EIA derives this by dividing residential revenue by residential sales; it is an average across all rate schedules and charges, not a tariff rate.
How does that compare with Ohio?
The Ohio average residential price in 2024 was 15.99¢ and the US average 16.48¢; Dayton Power & Light Co was 4.2% below the state figure. Among 36 utility filings with a bundled residential price in Ohio, it had the 20th highest.
What is the average Dayton Power & Light Co bill?
$140.24 a month in 2024, on average residential use of 915 kWh a month (annual revenue and sales divided by customers and by twelve). The Ohio average was $135.16 on 846 kWh.
How reliable is Dayton Power & Light Co service?
It reported 502.6 minutes of interruption per customer (SAIDI) including major event days and 106.4 minutes excluding them, with 1.26 interruptions per customer (SAIFI) in 2024. Utilities calculate these under differing methods, so comparisons are approximate.
Is the Dayton Power & Light Co price rising?
The average residential price was down 6.6% in 2024 compared with 2023 and up 42.6% compared with 2019.
Which counties does Dayton Power & Light Co serve?
Its Form EIA-861 service territory lists 24 counties, including Auglaize County, OH, Brown County, OH, Butler County, OH, Champaign County, OH, Clark County, OH and Clinton County, OH. A county can appear in several utilities' territories.
Provenance
Source: U.S. Energy Information Administration. Annual figures are from Form EIA-861 (sales to ultimate customers, reliability, operational data and service territory files), final release for 2024, respondent "Dayton Power & Light Co", utility number 4922. Monthly utility figures are from the Form EIA-861M sample. State and US averages are from the Form EIA-861M sales and revenue workbook, published through July 2026. All are US government works in the public domain. Page built 30 Sep 2026. Errors in processing are corrected at the next build; see corrections. For tariffs and rate schedules, consult the utility or the state utility commission.