Solar · New Castle County, DE

Solar installers in New Castle County

We don't have installer records for New Castle County yet. Covers Wilmington, Newark, Middletown, Elsmere, New Castle, Townsend and nearby towns.

Median installed price in New Castle County$3.96/WAbout $35,600 for a 9 kW system, before incentives (Delaware: $3.73/W)

Delaware's public records rarely say who installed each system, so we can't list installers for New Castle County yet. See all Delaware installers.

Towns in New Castle County: Wilmington, Newark, Middletown, Elsmere, New Castle, Townsend, Delaware City, Bellefonte, Newport, Arden, Odessa, Ardentown.

What a system costs in New Castle County

Size	Typical cost	Middle half
5 kW	$19,800	$13.1k–$24.4k
7 kW	$27,700	$18.4k–$34.1k
10 kW	$39,600	$26.3k–$48.7k
12 kW	$47,500	$31.6k–$58.4k

At the median installed price of $3.96/W (2,052 systems bought outright), before incentives. The middle half of buyers paid within the range shown. Systems with a battery cost more and aren’t included.

Installed price by year

Median $/W for systems bought outright, by the year they were installed.

Show as table

Median installed solar price by year, New Castle County, DE
Date	Median
2021	$4.17/W
2022	$4.10/W
2023	$4.32/W
2024	$3.93/W
2025	$2.84/W

Other Delaware counties

Kent County Sussex County

How much does solar cost in New Castle County, DE?

Homes in New Castle County that bought solar in 2023–2025 paid a median $3.96/W installed, about $35,600 for a 9 kW system before incentives.

Which solar companies install in New Castle County, DE?

Public records for Delaware don't name installers by county yet.

Installed prices and installers from public installation records: Lawrence Berkeley National Laboratory’s Tracking the Sun (systems installed through 2025) and state program files from California, New York, New Jersey, Connecticut, Illinois and Oregon, which run into 2026. Prices are in dollars per watt of panel capacity (DC), before rebates and tax credits, for homes that bought their system; leased systems and systems with batteries are left out.