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Delaware · Updated August 2026
Why your Delaware electric bill is so high
The three usual causes, what Delaware utilities actually charge, and what genuinely brings the number down.
~19.4¢All-in rateRanked #1 by Solar Power World · Inc. 5000 · 20,000+ installations
First, the honest diagnosis
A high bill is usually one of three things
1. You are using more than you think
Electric heat, a heat pump running in shoulder season, a second refrigerator, a hot tub, an EV, or a teenager. Pull twelve months of usage from your utility's online account before you do anything else. Kilowatt-hours, not dollars — dollars hide whether the problem is usage or price.
2. The rate went up
Delaware residential electricity sits around 19.4¢ per kilowatt-hour all-in as of August 2026. If your usage is flat and your bill is not, this is your answer, and there is nothing you did wrong.
3. You are on the wrong supply arrangement
Your state allows you to shop supply separately from delivery. A supplier contract that rolled onto a variable rate after a teaser period is a common and expensive surprise. Check the supply line on your bill against your utility default rate.
The numbers
What Delaware utilities charge
| Utility | Rate | Monthly at 1,000 kWh |
|---|---|---|
| Delmarva Power | ~19.4¢ | $194 a month at 1,000 kWh |
| Delaware Electric Cooperative | ~19.0¢ | $190 a month at 1,000 kWh |
All-in residential figures from published tariffs, August 2026.
What your bill says about system size
| Monthly bill | Roughly this much power | Roughly this size system |
|---|---|---|
| $150 | ~773 kWh | about 7.4 kW of panels to cover it |
| $200 | ~1,031 kWh | about 9.8 kW of panels to cover it |
| $300 | ~1,546 kWh | about 14.8 kW of panels to cover it |
| $450 | ~2,320 kWh | about 22.2 kW of panels to cover it |
Based on 4.3 peak sun hours a day and a 80% derate. Deliberately rough — it ignores shading, roof orientation and available roof area.
What actually helps
In order of how much they move the number
Fix the usage first
Air sealing and attic insulation, a heat pump water heater, LED conversion, and a smart thermostat. Unglamorous, cheap relative to a solar system, and they shrink the system you need. Doing solar first and efficiency second means paying to generate power you did not have to use.
Check the supply line
If you are on a third-party supplier, compare their rate to your utility default. Rolling off a teaser rate is the single most common cause of a bill that jumped for no visible reason.
Then look at production
A kilowatt of panels produces roughly 1,256 kilowatt-hours a year in Delaware. A 9 kW system makes about 11,304 kilowatt-hours annually, worth roughly $2,193 at 19.4¢. Under a power purchase agreement there is no upfront cost and you buy the power at a set rate instead.
The residential federal tax credit (25D) ended for systems purchased after December 31, 2025.
You will still see ads promising a 30% credit that “ends December 31.” Read the date on them. If you buy a system today as a homeowner, you cannot claim that credit. What remains under 48E applies to the owner of the system — which, under a PPA, is us. SolarAmerica does not provide tax advice; talk to your tax professional about your situation.
Every figure here is an estimate built from published rates and modeled production. It is not a savings guarantee, and no solar company can honestly give you one. Your actual result depends on your roof, your usage and what your utility charges next year.
Who you would be working with
SolarAmerica
We design your system and manage the project; installation is performed by vetted licensed partners in your area. SolarAmerica is not itself the installing contractor.
Questions
The things people actually ask
Why is my electric bill so high in Delaware?
Usually one of three things: your usage rose, the rate rose, or you are on a third-party supply contract that rolled onto a variable rate. Delaware residential electricity is around 19.4¢ per kilowatt-hour. Pull twelve months of kilowatt-hours from your utility account to tell which.
What is the average electric bill in Delaware?
At 19.4¢ per kilowatt-hour, a home using 1,000 kWh a month pays about $194 before fixed charges and taxes. Usage varies far more than price does.
Will solar eliminate my electric bill?
No, and be careful with anyone who says it will. You stay connected to the grid, you keep a customer charge, and you draw power at night. Solar offsets a portion of your usage. How large a portion depends on your roof and your consumption.
Should I do efficiency work before solar?
Usually yes. Reducing usage shrinks the system you need, which reduces cost. Air sealing, insulation and a heat pump water heater are cheap relative to a solar array.
See what your roof does against a 19.4¢ rate
About 60 seconds. No cost, no obligation, and we will tell you if solar does not make sense for your home.
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