Electric Consumer

Editor: Katerine G., Editor & Data Researcher · Research & publishing: Electric Consumer Editorial Team · Data retrieved · Sources named on this page: EIA-861, EIA retail sales, EIA-860/923, EPA eGRID, Census ACS · How we got these numbers · Report an error

Delaware electric companies, rates and outages

Delaware has 1,005,872 residents and 535,330 electric accounts across 6 utilities listed by EIA.

Delmarva Power Keeney substation, which steps 500 kV down to 230 kV and 138 kV, Delaware
Delmarva Power Keeney Substation. Photo by Tonyglen14, CC BY 2.0, Wikimedia Commons. Illustrative, not a listed utility's plant.

In 2025 Delaware homes paid 17.13 ¢/kWh: rank 18 of 51, 1.0% below the U.S. average of 17.30 ¢ (2024: 16.57 ¢).

Calculators for Delaware

How it compares

Delaware prices
Customer sector2024GapRank
Residential16.57 ¢/kWh+0.5% against the U.S.17 of 511 is highest
Commercial12.20 ¢/kWh-4.3% against the U.S.20 of 511 is highest
Industrial8.49 ¢/kWh+4.4% against the U.S.21 of 511 is highest

Electric companies in Delaware

Delaware home prices, 2024; lowest filled.

Delaware companies
CompanyHome accountsAverage priceReliabilityNet metering
Delaware Electric CooperativeLowest price104,83914.22 ¢/kWh$129 a month at 911 kWh61 minSAIDI, SAIFI 0.9438.2 MW3,254 systems
City of Milford7,16915.17 ¢/kWh$138 a month at 911 kWhNo data2.1 MW230 systems
City of Dover21,60115.52 ¢/kWh$141 a month at 911 kWhNo data6.0 MW570 systems
Delmarva Power301,95016.37 ¢/kWh$149 a month at 911 kWh68 minSAIDI, SAIFI 0.65110.1 MW10,329 systems
Town of Middletown9,07117.12 ¢/kWh$156 a month at 911 kWhNo data5.2 MW352 systems
City of Newark11,88818.99 ¢/kWh$173 a month at 911 kWh84 minSAIDI, SAIFI 0.774.4 MW222 systems

Delaware: 2025 and 2026

Delaware, data to July 2026.

Delaware 2025 average price
17.13 ¢/kWh+3.4% against 2024, U.S. +5.0%
Delaware 2025 rank
18 of 51-1 places against 2024
Delaware January to Jul 2026
17.85 ¢/kWh+6.5% on Jan-Jul 2025
Delaware Last 12 months
17.79 ¢/kWhto July 2026
Delaware July 2026
18.48 ¢/kWh+11.5% against July 2025
Delaware 2025 costliest month
Nov 18.81 ¢cheapest Jan 15.53 ¢, a 21% spread
Delaware Typical 2025 bill
$160 a monthtop Jul $208, low Oct $119

The Delaware residential price averaged 17.13 ¢/kWh in 2025, +3.4% on 2024: Delaware ran 1.6 points slower than the nation. From January to July 2026 the Delaware average is 17.85 ¢, +6.5% on 2025, close to the U.S. change. Seasonality in Delaware: 2025 peaked in November at 18.81 ¢ and bottomed in January at 15.53 ¢. A typical residential account in Delaware paid about $1,915 for energy over 2025, from $119 in October to $208 in July; use per account ran 651 to 1,252 kWh a month.

Delaware price by month, 2024 to Jul 2026

Price by month, Delaware: 12 rows
Month202420252026 to Jul
Jan15.6215.5316.51
Feb15.8315.6516.27
Mar16.7016.7117.64
Apr17.6617.9718.79
May17.3918.1319.38
Jun16.4218.1619.29
Jul15.6116.5818.48
Aug15.7916.82No data
Sep16.8018.12No data
Oct18.0718.31No data
Nov18.2218.81No data
Dec16.7917.12No data

12 rows from EIA retail sales.

CSV

What a typical Delaware account paid each month

Delaware: use per account times price, energy only.

Typical bill by month, Delaware: 12 rows
Month20252026 to Jul
Jan189193
Feb173196
Mar157171
Apr129133
May120136
Jun157171
Jul208198
Aug183No data
Sep153No data
Oct119No data
Nov133No data
Dec195No data

12 rows from EIA retail sales.

CSV

What Delaware power is made of

In plain words. Natural gas is the biggest source in Delaware (86%), and the power made there is about as clean as the U.S. average per kWh. New plants with 29 MW are under construction.

In 2025 Delaware plants of 1 MW or more made 5.5 TWh. The biggest sources: natural gas 86.0%, coal 4.6%, other sources 3.8%. For comparison, natural gas makes 40.9% of U.S. generation. Wind, solar and hydro together: 3.2% (22.6% for the U.S.). Delaware plants only; imports and rooftop solar are not counted.

Delaware, share of net generation, %

  • Coal 4.6
  • Natural gas 86.0
  • Nuclear
  • Hydro (conventional)
  • Wind 0.1
  • Utility-scale solar 3.1
  • Petroleum 1.3
  • Wood, biomass, geothermal, waste 1.1
  • Other 3.8

Fuel groups: prices guide.

Delaware, share of net generation and operating capacity: 7 rows
SourceDelaware share of generation, %U.S. share, %Delaware generation, TWhDelaware capacity, MW
Coal4.616.60.250
Natural gas86.040.94.702,629
Wind0.110.40.002
Utility-scale solar3.16.80.17115
Petroleum1.30.40.07121
Wood, biomass, geothermal, waste1.11.40.0614
Other3.80.40.21140

EIA-923 and EIA-860 for Delaware, 2025 data, pulled 2 Oct 2026.

CSV

Delaware plant pipeline

Delaware, megawatts: 6 rows
Delaware plantsMW
Operating, utility-scale3,020
Battery storage0
Retiring 2026 to 20300
Retiring after 20304
Under construction29
Planned178

EIA-860 generators in Delaware, 2025 data.

CSV

Delaware carbon per kWh

Delaware plants emitted 703 lb of CO₂ per MWh in 2023 (0.319 kg per kWh), against 767 lb for the U.S. An average Delaware home using 929 kWh a month accounts for about 296 kg of CO₂ a month at that rate. The rate is for Delaware plants, not your supplier.

state and national values: 4 rows
MeasureDelawareU.S.
CO₂, lb per MWh703.2767.2
CO₂, kg per kWh0.3190.348
NOx, lb per MWh0.2260.452
SO2, lb per MWh0.0740.359

EPA eGRID2023 for Delaware, pulled 2 Oct 2026.

CSV

Who delivers and who sells in Delaware

5.7% of Delaware home accounts bought energy from a supplier other than the wires company in 2024 (28 suppliers reported), 473,508 accounts in all. Plan prices are not shown here: choosing a supplier.

Delaware, largest wires companies: 1 rows
Delaware wires companyDelivery-only home accounts
Delmarva Power26,932

EIA-861 wires companies in Delaware, 2024 data.

CSV
Delaware, largest suppliers by home accounts: 5 rows
Delaware supplierHome accounts
Reliant Energy Northeast LLC4,049
Inspire Energy Holdings, LLC3,555
Direct Energy Services3,201
CleanChoice Energy, Inc.3,044
SmartEnergy Holdings, LLC2,260

EIA-861 suppliers in Delaware, 2024 data.

CSV

Delaware weather

A normal year in Delaware brings 4,943 heating and 945 cooling degree-days (1991 to 2020). 2025 had 4,559 heating (8% below normal) and 1,166 cooling (23% above normal).

Delaware degree-days by year

Heating and cooling degree-days, Delaware, 2015 to 2025: 11 rows
Delaware yearHeating (HDD)Cooling (CDD)Normal HDDNormal CDD
2015448012924943945
2016423613584943945
2017403411674943945
2018447213934943945
2019434713754943945
2020399912564943945
2021416412544943945
2022448112654943945
2023384310774943945
2024403712324943945
2025455911664943945

NOAA nClimDiv degree-days for Delaware, 2015 to 2025, pulled 2 Oct 2026.

CSV

Delaware meters and time-of-use rates

93.6% of Delaware home meters are advanced (AMI) meters: 449,105 of 479,731. 1 of 8 reporting utilities offer a home time-of-use rate, and 262,644 home accounts are enrolled in dynamic pricing programs.

EIA-861 meters in Delaware, data year 2024, pulled 2 Oct 2026: homes.

Flood claims and flood insurance in Delaware

Delaware: 636 NFIP flood claims with a loss date in 2015 to 2025, $13.5M paid, median paid claim $5,578; 44th of 55 states and territories by dollars paid. The peak year was 2016 with 166 claims. FEMA counts 4.8% of Delaware residential structures as insured, 6th of 51, and the policy file shows 25,227 NFIP policies in force on 8 Sep 2026. Floods damage substations and lines, and in Delaware this is claims history, not an outage count.

Delaware counties with the most NFIP flood claims
Top counties in DelawareClaims 2015-2025PaidClaims per 1,000 homes
Sussex County350$2.8M2.9
New Castle County231$10.0M1.3
Kent County55$680K0.8

Delaware: flood claims by state, flood claims by county. 636 Delaware claims as of 8 Sep 2026, OpenFEMA NFIP; counts under 5 hidden.

Delaware charts

Price by sector, Delaware

Home 16.57, business 12.20, industry 8.49 ¢ in 2024.

Delaware price by sector 2015-2024, 2015 to 2024: 10 rows
YearResidentialCommercialIndustrialGap to U.S. residential
201513.4210.258.28+0.77
201613.4210.078.11+0.87
201713.359.897.78+0.46
201812.539.657.95-0.34
201912.559.537.70-0.46
202012.569.186.70-0.59
202112.529.487.60-1.14
202213.7110.988.79-1.33
202315.7311.837.85-0.27
202416.5712.208.49+0.09

10 rows from EIA retail sales.

CSV

Largest utilities, SAIDI

Median of 3 reporters here: 68.0 minutes.

min

  • Delmarva Power68.0
  • Delaware Electric Cooperative61.3
  • City of Newark84.4
  • U.S. median99.5

Delaware, SAIDI of the largest Delaware utilities: EIA-861 survey.

CSV

Median SAIDI by year, 2020-2024

103 minutes in 2020, 68 in 2024.

Median SAIDI by year, Delaware, 2020 to 2024: 5 rows
YearDelaware medianGap to U.S. median reporter
2020103+6
202161-35
202265-38
202360-39
202468-31

5 rows from EIA-861 survey.

CSV

Who serves each county

Delaware counties shaded by utilities listing them; the table shows the top twelve.

Delaware counties by number of electric utilitiesSussexNew CastleKent

1 utility 2 3 4 or more

Delaware counties: 3 rows
CountyUtilitiesNames
Kent4City of Dover; City of Milford; Delaware Electric Cooperative; Delmarva Power
New Castle3City of Newark; Delmarva Power; Town of Middletown
Sussex3City of Milford; Delaware Electric Cooperative; Delmarva Power

3 rows from EIA-861 Service Territory, Census 2023 county outlines.

CSV

Analyst note

Delaware residential power was 16th highest of 51 in 2015 at 13.42 ¢ and is 17th in 2024 at 16.57 ¢, so the state slid down 1 places. The U.S. figure went 12.65 to 16.48 ¢ while Delaware went +23.5%. The biggest annual move was 2023 at +14.7%; the latest year, 2024, came in at +5.3% against +3.0% for the U.S. Business customers paid 10.25 ¢ in 2015 and 12.20 ¢ in 2024, a gap to homes of -3.17 ¢ then and -4.37 ¢ now; industry went from 8.28 to 8.49 ¢ (+2.5%). Delmarva Power is the largest by accounts with 339,588, 63.4% of the 535,330 accounts in Delaware, and the top three hold 90.3%. Territory overlaps: 3 of 3 counties are listed by two or more utilities, led by Kent with 4. Net-metered capacity totals 166 MW over 14,957 installations, 27.9 per 1,000 electric accounts.

Delaware ranks 17th of 51 on residential price (16.57 ¢), mid-table, and 0.5% over the national average. Since 2015 the residential price moved +23.5% against +30.3% nationally, so Delaware has slipped behind the national trend by 6.8 points.

Businesses pay 4.37 ¢ less than households here (-26.4%); business is under home price in 51 of 51. SAIDI for the typical reporter is 68.0 minutes across 3 utilities, under the national 99.5. Three utilities serve 93.7% of accounts.

By revenue, Delaware electricity splits 55.6% residential, 33.9% commercial and 10.6% industrial; by kWh the split is 45.5%, 37.6% and 16.9%. Residential accounts are the largest revenue source here. Home accounts are 88.5% of 535,330 accounts and use 911 kWh a month, a commercial account 5,883 and an industrial one 136,668.

Facts

Residents (ACS 2023)
1,005,872396,209 households
Electric accounts
535,330532 per 1,000 residents
Residential price
16.57 ¢/kWh+0.09 ¢ against the U.S.
Commercial price
12.20 ¢/kWh-0.55 ¢ against the U.S.
Industrial price
8.49 ¢/kWh+0.36 ¢ against the U.S.
Residential since 2015
+23.5%-6.8 points vs U.S.
Retail sales
11.4 TWh11,308 kWh a resident
Utilities listed
64 municipal, 1 investor owned, 1 cooperative
Median SAIDI
68.0 min3 utilities, 0.68x U.S.
Net-metered capacity
166 MW14,957 installations
Top three utilities
93.7%of utility accounts
Business minus home
-4.37 ¢-26.4% of the home price
Counties with 2+ utilities
3 of 3most: Kent, 4 utilities

Data tables

Delaware: price by year

YearHomeBusinessIndustryHome vs U.S.
201513.4210.258.28+0.77
201613.4210.078.11+0.87
201713.359.897.78+0.46
201812.539.657.95-0.34
201912.559.537.70-0.46
202012.569.186.70-0.59
202112.529.487.60-1.14
202213.7110.988.79-1.33
202315.7311.837.85-0.27
202416.5712.208.49+0.09

Questions on Delaware

How many cents per kWh do Delaware homes pay?

16.57 cents in 2024, which is +0.09 cents against the U.S. figure.

Did Delaware electricity get more expensive after 2015?

It went from 13.42 to 16.57 cents, +23.5% in total, -6.8 points against the U.S.

How many utilities does EIA list for Delaware?

6 utilities have Delaware as their largest state, and 3 of them report SAIDI.

How much solar net metering exists in Delaware?

166 MW over 14,957 installations.

How many electric accounts does Delaware have per 1,000 residents?

532: 535,330 accounts for 1,005,872 residents.

Do Delaware businesses pay more than households?

Businesses pay 12.20 ¢ and homes 16.57 ¢, a difference of -4.37 ¢.

What did Delaware residential electricity cost in 2025?

Delaware averaged 17.13 cents per kWh, +3.4% against 16.57 in 2024, and 18 of 51 among states.

Are Delaware residential electricity prices rising in 2026?

Delaware is -0.6 points against the U.S.: 17.85 cents from January to July 2026, +6.5% on 2025.

When in 2025 did Delaware residential power cost most, November or January?

November at 18.81 cents in Delaware; January was the lowest at 15.53, a 21% spread.

Does Delaware residential power cost less than the national average in 2026?

0.36 cents below the national average; Delaware 17.85 cents over January to July 2026, +6.5% on 2025.

States with a similar home price

Closest to Delaware at 16.57 ¢/kWh, by 2024 average home price.

More on Delaware

How Delaware ranks and compares

Delaware is 34th cheapest of 51 on price (17.13 ¢); 5th of 44 on outage minutes (67 min); 24th cleanest grid (703 lb CO2 per MWh); 22nd highest income burden (2.31%).

All rankings, price, income and outages explorer, compare two states.

Help paying the bill in Delaware

Delaware has $14.0 million in federal energy-assistance money for FY2026, shutoff rules and phone lines. Open the Delaware help page.

Counties in Delaware ranked: highest and lowest energy burden, storm reports and old homes, county by county.

More on Delaware

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In 2025 Delaware homes paid 17.13 ¢/kWh: rank 18 of 51, 1.0% below the U.S. average of 17.30 ¢ (2024: 16.57 ¢).

Cite this page

Underlying data are U.S. government works (EIA, Census Bureau). Our tables and charts: CC BY 4.0, credit Electric Consumer. The access date fills in when you open this page.

APA

Electric Consumer. (2026). Delaware electricity rates 2025: price per kWh, utilities and outages. Data as of 2 October 2026. Retrieved [date accessed], from https://electricconsumer.org/states/delaware.html

MLA

Electric Consumer. “Delaware electricity rates 2025: price per kWh, utilities and outages.” Electric Consumer, data as of 2 October 2026, https://electricconsumer.org/states/delaware.html. Accessed [date accessed].

Chicago

Electric Consumer. “Delaware electricity rates 2025: price per kWh, utilities and outages.” Data as of 2 October 2026. Accessed [date accessed]. https://electricconsumer.org/states/delaware.html.

BibTeX

@misc{usedata_states_delaware,
  author = "Electric Consumer",
  title = {Delaware electricity rates 2025: price per kWh, utilities and outages},
  year = {2026},
  url = {https://electricconsumer.org/states/delaware.html},
  note = {Data as of 2 October 2026. Accessed [date accessed]}
}
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