Solar Panel Costs in Delaware (2026)
Avg cost: $2.95/watt | 4.2 sun hours/day | Good
Delaware Solar Overview
$2.95/W
Cost Per Watt
4.2 hrs
Peak Sun Hours
280 MW
Installed Capacity
Good
Solar Rating
A typical 7 kW residential system in Delaware costs $21,683 before the federal tax credit and $15,178 after. With 4.2 peak sun hours per day, the system produces approximately 8,585 kWh annually, saving an estimated $1,374/year. The payback period is approximately 11 years.
Net Metering in Delaware
Available at retail rate for systems under 25 kW
State Incentives & Tax Credits
Federal ITC (30%)
Save $6,505 on a 7 kW system. Available through 2032.
Delaware State Incentive
Green Energy Program grant up to $3,500; sales tax exemption (no sales tax in DE)
Solar Service Costs in Delaware
| Service | Low | High | DE Avg |
|---|---|---|---|
| Residential Solar Installation | $15,750 | $31,500 | $23,625 |
| Commercial Solar Installation | $52,500 | $210,000 | $105,000 |
| Battery Storage Installation | $5,250 | $15,750 | $10,500 |
| Solar Panel Removal | $1,575 | $5,250 | $3,150 |
| Solar Panel Cleaning | $158 | $630 | $315 |
| Inverter Replacement | $1,050 | $3,675 | $2,100 |
| Solar Roof Tiles | $42,000 | $78,750 | $57,750 |
| Solar Water Heater | $3,150 | $7,350 | $5,250 |
Top Solar Installers in Delaware
- Trinity Solar
- Sunrun
- Solar Energy World
Always verify NABCEP certification, state licensing, insurance, and customer reviews. Get at least 3 written quotes.