Solar Panel Cost & Installation Data in Delaware
Observed Records
7,866
Reported Capacity
84 MW
Observed Avg Cost
$4.97/W
Median: $4.56/W
Dataset Rank
#22
92% residential
16.57¢
Residential Rate (EIA 2024)
4h
Peak Sun Hours/Day
23.9 yrs
Est. Payback Period
$2,226
Est. Annual Savings
Environmental & Community Impact
- CO₂ Offset/Year
- 94,355 tons
- CO₂ Offset/System/Year
- 8.9 tons
- Installations per 10K Residents
- 79.2
- State Population
- 993,635
- Est. Annual Production/System
- 13,435 kWh
Estimates use average system size, a 4h/day state solar-resource proxy and a 14% system-loss assumption. Payback excludes financing and incentives. Context sources: NREL, EIA and EPA eGRID (0.709 metric tons CO₂/MWh).
System Overview
- Avg System Size
- 10.7 kW
- Third-Party Owned
- 25.3%
Cost Trend ($/W)
Avg Cost per Watt
Installation Growth (Last 5 Years)
1571572019
2282282020
5325322021
8228222022
1.3K1,2802023
Installer Names in the Source Records
| Installer | Observed Records |
|---|---|
| -1 | 7,130 |
| Sungevity Development | 126 |
| Clean Energy Usa | 103 |
| Liberty Services Company | 86 |
| Tesla Energy | 67 |
| Cmi Solar Electric | 57 |
| Advanced Solar | 44 |
| Flexera | 41 |
| Kw Solar Solutions | 38 |
| Cnc Solar | 30 |
Panel Brands in the Source Records
| Brand | Observed Records |
|---|---|
| Alps Technology | 7,866 |
County Records - Delaware
| County | Observed Records | Reported Capacity |
|---|---|---|
| New Castle | 4,540 | 47.1 MW |
| Sussex | 2,572 | 26.6 MW |
| Kent | 713 | 8.7 MW |
Delaware Solar Incentives
State-program snapshot
Is Solar Worth It in Delaware?
Modeled homeowner analysis
Primary dataset: LBNL Tracking the Sun 2024 release. Counts represent records in the source release, not a complete statewide census.