States › Delaware
State · 2024 annual, monthly to Jul 2026
Delaware electricity prices and utilities
Households in Delaware paid an average of 16.57¢ per kilowatthour for electricity in 2024, about the same as the US average of 16.48¢. That ranks 17th highest of the 50 states and the District of Columbia.
The average residential bill was $150.87 a month on 911 kWh of monthly use (US: $142.26 on 863 kWh), the 14th highest bill. Residential sales came to 4,882 kWh per resident over the year.
In July 2026, the latest month EIA has published, the residential average was 18.48¢, up 11.5% on July 2025; the US figure for the month was 18.31¢. Monthly figures are preliminary until EIA finalises the year.
34 respondents reported residential customers in Delaware on the full Form EIA-861 for 2024, and 5 smaller utilities filed the short form, which has no residential breakdown. Investor-owned utilities account for 62.4% of the residential customers reported.
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. State averages are EIA's own, from Forms EIA-861 and EIA-861M.
Residential price by month
DelawareUnited States
Monthly pages:Jul 2026Jun 2026May 2026Apr 2026Mar 2026Feb 2026Jan 2026Dec 2025Nov 2025Oct 2025Sep 2025Aug 2025Jul 2025Jun 2025May 2025Apr 2025Mar 2025Feb 2025Jan 2025Dec 2024Nov 2024Oct 2024Sep 2024Aug 2024
Year by year
| Year | Residential ¢ | US ¢ | Commercial ¢ | Industrial ¢ | Monthly bill | kWh a month |
|---|---|---|---|---|---|---|
| 2026 to Jul 2026 | 17.86¢ | 18.19¢ | 13.91¢ | 11.73¢ | $171.18 | 959 |
| 2025 preliminary | 17.13¢ | 17.30¢ | 12.64¢ | 9.64¢ | $159.58 | 932 |
| 2024 | 16.57¢ | 16.48¢ | 12.20¢ | 8.49¢ | $150.87 | 911 |
| 2023 | 15.73¢ | 16.00¢ | 11.83¢ | 7.85¢ | $138.04 | 878 |
| 2022 | 13.71¢ | 15.04¢ | 10.98¢ | 8.79¢ | $128.99 | 941 |
| 2021 | 12.52¢ | 13.66¢ | 9.48¢ | 7.60¢ | $118.85 | 950 |
| 2020 | 12.56¢ | 13.15¢ | 9.18¢ | 6.70¢ | $117.09 | 932 |
| 2019 | 12.55¢ | 13.01¢ | 9.53¢ | 7.70¢ | $119.16 | 950 |
| 2018 | 12.53¢ | 12.87¢ | 9.65¢ | 7.95¢ | $122.44 | 977 |
| 2017 | 13.35¢ | 12.89¢ | 9.89¢ | 7.78¢ | $121.73 | 912 |
| 2016 | 13.42¢ | 12.55¢ | 10.07¢ | 8.11¢ | $127.03 | 947 |
| 2015 | 13.42¢ | 12.65¢ | 10.25¢ | 8.28¢ | $131.18 | 977 |
| 2014 | 13.29¢ | 12.52¢ | 10.50¢ | 8.58¢ | $126.26 | 950 |
| 2013 | 12.95¢ | 12.13¢ | 10.20¢ | 8.43¢ | $122.25 | 944 |
Nominal prices. The five-year change in the residential average is +32.0%. A part-year row covers January to the latest month published, so it is not comparable with full years: winter and summer months weigh differently.
Utilities by average residential price, 2024
Every filing with at least 100 bundled residential customers in Delaware, highest average price first. Linked utilities have 1,000 or more residential customers. A multi-state utility appears with its Delaware figures only.
| Utility | Ownership | Residential customers | ¢ per kWh | Monthly bill | SAIDI, all events | SAIDI, no major events |
|---|---|---|---|---|---|---|
| City of Newark | Municipal | 11,888 | 18.99¢ | $131.52 | 84.4 | 84.4 |
| Delmarva Power | Investor-owned | 301,950 | 17.23¢ | $152.26 | 127.0 | 68.0 |
| Town of Middletown | Municipal | 9,071 | 17.12¢ | $158.26 | — | — |
| City of Dover | Municipal | 21,601 | 15.52¢ | $126.36 | — | — |
| City of Milford | Municipal | 7,169 | 15.17¢ | $140.99 | 20.0 | 20.0 |
| Delaware Electric Cooperative | Cooperative | 104,839 | 14.22¢ | $146.66 | 95.7 | 61.3 |
Energy-only and delivery-only filings
These respondents bill part of the service in Delaware, so EIA's revenue figure for them is not a whole price and none is listed here.
| Respondent | Ownership | Residential customers |
|---|---|---|
| Reliant Energy Northeast LLC energy only | Retail power marketers | 4,049 |
| Inspire Energy Holdings, LLC energy only | Retail power marketers | 3,555 |
| Direct Energy Services energy only | Retail power marketers | 3,201 |
| CleanChoice Energy, Inc. energy only | Retail power marketers | 3,044 |
| SmartEnergy Holdings, LLC energy only | Retail power marketers | 2,260 |
| WGL Energy Services, Inc. energy only | Retail power marketers | 1,995 |
| Residents Energy, LLC energy only | Retail power marketers | 1,673 |
| Just Energy Solutions Inc. energy only | Retail power marketers | 1,515 |
| Rushmore Energy, LLC energy only | Retail power marketers | 1,137 |
| Spark Energy, LP energy only | Retail power marketers | 881 |
| Clearview Electric Inc. energy only | Retail power marketers | 770 |
| Constellation NewEnergy, Inc energy only | Retail power marketers | 712 |
| XOOM Energy Delaware, LLC energy only | Retail power marketers | 362 |
| Ambit Energy Holdings, LLC energy only | Retail power marketers | 292 |
| Palmco Power DE, LLC energy only | Retail power marketers | 248 |
| NextEra Energy Services, LLC energy only | Retail power marketers | 211 |
| Discount Power Inc energy only | Retail power marketers | 203 |
| Nordic Energy Services, LLC energy only | Retail power marketers | 197 |
| Stream Energy Delaware, LLC energy only | Retail power marketers | 172 |
| Park Power LLC energy only | Retail power marketers | 139 |
| RPA Energy, Inc. energy only | Retail power marketers | 129 |
| Atlantic Energy LLC energy only | Retail power marketers | 117 |
| Titan Gas LLC energy only | Retail power marketers | 108 |
| MidAmerican Energy Services, LLC energy only | Retail power marketers | 82 |
| ResCom Energy, LLC energy only | Retail power marketers | 49 |
The 25 largest of 28 such filings, by residential customers.
Reliability by utility, 2024
SAIDI: minutes of sustained interruption per customer over the year, including major event days (paler bars: the utility reported only the figure without major event days). Median across 4 Delaware filings: 90.1 minutes with major event days, 64.7 without. EIA's state total: 116.1 and 65.9 minutes, with SAIFI of 0.84 interruptions per customer. Utilities use differing calculation methods, and a single storm can dominate a small utility's year.
| Year | Median SAIDI, all events | Median SAIDI, no major events | Filings | EIA state total, all events | EIA state total, no major events |
|---|---|---|---|---|---|
| 2024 | 90.0 | 64.7 | 4 | 116.1 | 65.9 |
| 2023 | 57.0 | 45.4 | 4 | 108.2 | 60.4 |
| 2022 | 78.0 | 65.0 | 3 | — | — |
| 2021 | 61.0 | 61.0 | 3 | — | — |
| 2020 | 272.0 | 103.4 | 3 | — | — |
| 2019 | 72.0 | 62.2 | 4 | — | — |
| 2018 | 113.2 | 77.5 | 4 | — | — |
| 2017 | 83.4 | 75.9 | 4 | — | — |
| 2016 | 139.5 | 105.1 | 4 | — | — |
| 2015 | 81.6 | 75.5 | 4 | — | — |
| 2014 | 127.0 | 96.5 | 4 | — | — |
| 2013 | 107.5 | 83.0 | 4 | — | — |
Sales by sector, 2024
| Sector | Sales | Share | ¢ per kWh |
|---|---|---|---|
| Residential | 5.2 TWh | 45% | 16.57¢ |
| Commercial | 4.3 TWh | 38% | 12.20¢ |
| Industrial | 1.9 TWh | 17% | 8.49¢ |
| All sectors | 11.4 TWh | 13.56¢ |
Residential sales per resident: 4,882 kWh a year, on a Census population estimate of 1,059,952.
Who serves Delaware
| Ownership | Filings | Residential customers | Share | Median ¢ |
|---|---|---|---|---|
| Investor-owned utilities | 1 | 301,950 | 62.4% | 17.23¢ |
| Electric cooperatives | 1 | 104,839 | 21.7% | 14.22¢ |
| Municipal utilities | 4 | 49,729 | 10.3% | 16.32¢ |
| Retail power marketers | 28 | 27,160 | 5.6% | — |
Customers as reported by each respondent. Where households buy energy from a retail supplier, the delivery utility and the supplier both report them, so shares describe filings, not households.
Counties
Each county page lists the utilities whose Form EIA-861 service territory includes it.
Questions and answers
What is the average electricity price in Delaware?
16.57¢ per kilowatthour for residential customers in 2024, against a US average of 16.48¢. Commercial customers averaged 12.20¢ and industrial customers 8.49¢. The latest monthly residential figure is 18.48¢ for July 2026 (preliminary).
What is the average electric bill in Delaware?
$150.87 a month for residential customers in 2024, on average use of 911 kWh a month. The US average was $142.26 on 863 kWh.
Is electricity getting more expensive in Delaware?
The average residential price was up 5.3% in 2024 on the year before and up 32.0% on 2019. These are nominal prices, not adjusted for inflation.
How reliable is electric service in Delaware?
EIA's state total for 2024 is 116.1 minutes of interruption per customer including major event days and 65.9 minutes excluding them, across utilities reporting under any method. The median utility in the state reported 90.1 minutes including major event days.
How many electric utilities serve Delaware?
34 respondents reported residential customers in Delaware on the full Form EIA-861 for 2024; 6 of them have a bundled residential price. Another 5 small utilities filed the short form. 3 counties appear in service territories.
Provenance
Source: U.S. Energy Information Administration. State averages, sales and customers by year and month: Form EIA-861M sales and revenue workbook, through July 2026. Utility rows, reliability and service territories: Form EIA-861, 2024 final release. Population: U.S. Census Bureau Vintage 2025 estimates. Public domain. See methodology.