Solar Panels Delaware: Costs, Savings & Payback
The Real Cost of Waiting for Solar Panels in Delaware
Delmarva Power, Delaware Electric Coop raised rates by up to 7% in the past year (a 3–5% per year trend over the past decade). At Delaware's current $0.1839/kWh and 4.48 peak sun hours daily, solar panels in Delaware typically generate $1,534 – $3,067 in annual savings, and that number grows as rates climb.
To give you a reliable picture, these estimates are built on strictly conservative assumptions: no expired incentives, includes ~4%/yr electricity rate increases (EIA historical avg), Full Retail NEM (1:1) — every exported kWh credited at full rate. While other sites inflate their numbers to close a sale, we show reality — so the savings you see here are savings you can actually count on.
Savings Calculator — Delaware
Estimated savings for a $200/month bill
ZIP-accurate estimate: Enter your ZIP for exact rates & sun hours.
Get My Exact Savings →Delaware Solar Data at a Glance
Delaware solar panels make financial sense in 2026 despite a below-average electricity rate of $0.1839/kWh. The key driver: 4.48 daily sun hours and a 3–5%/year rate increase trend that makes every year of delay more expensive. Solar panels in Delaware typically pay back in ~15 years.
📊 Data Sources
Rates: EIA/ElectricChoice May 2026 · Sun hours: NREL NSRDB · Incentives: DSIRE · Calculations: Delaware avg for $200/mo bill at 4.48 peak sun hrs/day, $0.1839/kWh, $3.75/W install cost.
Why Solar Makes Financial Sense in Delaware
- Above-average electricity rate of $0.1839/kWh — higher than the national average of $0.1805/kWh, accelerating payback for solar panels Delaware
- 4.48 peak sun hours daily — enough to consistently offset the majority of household electricity consumption with solar panels in Delaware
- Rooftop solar panels Delaware boost Delaware home values by an estimated $28,000 – $56,000 (Zillow/NREL data), improving overall ROI even without a formal property tax exemption
- Full retail net metering means every exported kilowatt-hour from your solar panels in Delaware earns a full credit at $0.1839/kWh, maximizing year-round financial return
Research from Zillow and NREL shows solar panels Delaware boost home values by roughly $3.50/installed watt — $28,000 – $56,000 for a typical Delaware system.NLRandSEIAdata consistently show solar panels in Delaware delivering positive lifetime returns, particularly as utility rates climb. Use theSolar Savings Calculatorto model the exact return for your home.
Top Solar Cities in Delaware
10-year savings for a $200/month bill. Enter your ZIP for a ZIP-accurate estimate.
| City | Peak Sun | Rate ($/kWh) | 10-yr Savings | Payback |
|---|---|---|---|---|
| Lewes | 4.55 hrs | $0.1839/kWh | $24,540 | 15 years |
| Dover | 4.5 hrs | $0.1839/kWh | $24,504 | 15 years |
| Wilmington | 4.48 hrs | $0.1839/kWh | $24,396 | 15 years |
| Newark | 4.45 hrs | $0.1839/kWh | $24,468 | 15 years |
Delaware vs. US Average
How does Delaware stack up against the national average for a $200/month bill?
| Metric | Delaware | US Average | Advantage |
|---|---|---|---|
| Electricity Rate | $0.1839/kWh | $0.1805/kWh | Higher rate = faster ROI |
| Peak Sun Hours | 4.48 hrs/day | 4.5 hrs/day | Less sun |
| 10-Year Savings | $24,396 | $24,504 | $108 less than US avg |
| 25-Year ROI | ~113% | ~110% | +3% |
| Payback Period | ~15 years | ~15 years | Same as US avg |
How Much Can a Delaware Family Save with Solar?
Most Delaware families save$1,534 – $3,067per year with solar panels. Homes with EV charging or high AC loads benefit most from Delaware solar — Delmarva Power's rates and retail NEM deliver solid returns for homeowners who maximize daytime self-consumption.
Ready to see your exact Delaware savings? Our free calculator uses your ZIP code, roof orientation, and bill size for a personalized estimate.
Calculate My Savings →Solar Incentives in Delaware (2026)
Delaware does not currently offer a statewide property tax exemption for solar installations. Check with your county assessor. · Sales tax exempt on solar equipment. · No state income tax credit currently.
Net Metering: Full Retail Net Metering. Excess power sent to grid earns retail-rate credits.
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Data last updated: 2026 · Sources: EIA, NREL, DSIRE, SEIA