Solar installations in New Castle County, DE
4,542 recorded installations in New Castle County, Delaware — capacity, prices and the installers doing the work.
Dataset updated . Refreshed from LBNL's Tracking the Sun public releases.
Most active
Top installers in New Castle County
| # | Installer | Installs here |
|---|---|---|
| 1 | Sungevity Development | 84 |
| 2 | Liberty Services Company | 70 |
| 3 | Advanced Solar | 39 |
| 4 | Cmi Solar Electric | 37 |
| 5 | Tesla Energy | 34 |
| 6 | Kw Solar Solutions | 33 |
| 7 | Suntricity | 22 |
| 8 | Liberty Electric | 9 |
| 9 | Flexera | 8 |
| 10 | Terrasol Energies | 3 |
Growth
Installations by year
Frequently asked questions
How many homes have solar in New Castle County?
The Tracking the Sun dataset records 4,542 solar installations in New Castle County, Delaware (47.1 MW of capacity). Dataset coverage depends on Delaware's reporting programs, so the true total is higher.
How much does solar cost in New Castle County?
The median installed price for recorded systems in New Castle County is $4.50/W pre-incentive; the median system runs 7.4 kW.
Who installs solar in New Castle County?
The most active recorded installers in New Castle County are Sungevity Development, Liberty Services Company, Advanced Solar.
County assignment is derived from installation ZIP codes via the Census 2020 ZCTA↔county crosswalk (primary county by land-area overlap) — approximate at county boundaries. See methodology.