Sussex County, DE solar installation & market data
Updated December 13, 2024Older data · growth withheld By The SolarDNA Data Team
Sussex County has 2,644 solar installations across 22 zip codes at a median installed cost of $4.29/W, recent growth not yet measurable, and an installs-weighted Market Score of 47.
Active installations
2,644
Zip markets
22
Median cost
$4.29/W
12-mo growth
—
Installers active
23
County Market Score
Great · installs-weighted across 22 zips
Best zip in Sussex County scores higher than 98% of U.S. zip markets.
Versus Delaware
How Sussex County compares with the state
Installed cost
$0.16/W below
state median $4.45/W
Market score
47 vs 31
Delaware scores 31
Share of state installs
31.43%
of 8.4K tracked statewide
Battery attach
0.0%
state 0.0%
Statewide momentum
▼ 77.1%
residential solar added in Delaware, 12 months through Jul 2026
Statewide market
15.4K systems
5.1% of homes · utility-reported through Jul 2026
Growth & pricing
Sussex County by year
164 installs in the trailing twelve months vs 198 before
Installations by year
Median installed cost, $/W DC by year
Installer comp set
Who installs in Sussex County
Summed across every zip in the county
| # | Installer | Installs | 12-mo | Zips | $/W |
|---|---|---|---|---|---|
| 1 | CLEAN ENERGY USA | 100 | 0 | 9 | $4.57 |
| 2 | TESLA | 28 | 0 | 7 | $5.05 |
| 3 | FLEXERA | 26 | 0 | 6 | $4.41 |
| 4 | ALUTECH UNITED | 24 | 0 | 10 | $2.91 |
| 5 | CNC SOLAR | 23 | 0 | 4 | $3.52 |
| 6 | SUNGEVITY | 22 | 0 | 11 | $4.60 |
| 7 | CMI SOLAR ELECTRIC | 14 | 0 | 8 | $4.93 |
| 8 | SOLAIR | 11 | 0 | 4 | $3.48 |
| 9 | LIBERTY SERVICES | 7 | 0 | 6 | $3.55 |
| 10 | FLEXARA | 3 | 0 | 2 | $3.38 |
| 11 | EDF RENEWABLE ENERGY | 2 | 0 | 1 | $6.38 |
| 12 | DELAWARE COMMERCIAL SOLAR | 2 | 0 | 1 | $5.13 |
| 13 | CHESAPEAKE SOLAR | 1 | 0 | 1 | $10.48 |
| 14 | 1ST STATE HVAC | 1 | 0 | 1 | $2.99 |
| 15 | ULTRA SOLAR WIND SOLUTIONS | 1 | 0 | 1 | $4.67 |
| 16 | LIBERTY ELECTRIC | 1 | 0 | 1 | $6.74 |
| 17 | SUNTRICITY | 1 | 0 | 1 | $6.22 |
| 18 | STANDARD SOLAR | 1 | 0 | 1 | — |
| 19 | KW SOLAR SOLUTIONS | 1 | 0 | 1 | $2.80 |
| 20 | CLEAN ENERGY PROGRAM | 1 | 0 | 1 | $3.83 |
| 21 | SOLIAR | 1 | 0 | 1 | $2.02 |
| 22 | WANEX ELECTRIC SERVICES | 1 | 0 | 1 | $8.33 |
| 23 | GREEN STREET POWER PARTNERS | 1 | 0 | 1 | $3.55 |
Zip markets
Zips in Sussex County
Ranked by installations · click for the zip market
| Zip | Installs | $/W | Score |
|---|---|---|---|
| 19971 | 612 | $3.57 | 52 A |
| 19958 | 449 | $5.00 | 45 C |
| 19970 | 273 | $4.04 | 49 B |
| 19966 | 250 | $5.00 | 44 C |
| 19968 | 171 | $4.68 | 45 C |
| 19930 | 167 | $3.25 | 52 A |
| 19975 | 118 | $4.50 | 46 B |
| 19973 | 89 | $4.52 | 45 C |
| 19947 | 76 | $4.61 | 45 C |
| 19956 | 71 | $4.38 | 46 B |
| 19963 | 53 | $5.00 | 43 C |
| 19933 | 50 | $4.50 | 45 C |
| 19939 | 44 | $4.30 | 46 B |
| 19945 | 40 | $3.96 | 48 B |
| 19940 | 39 | $4.13 | 47 B |
| 19960 | 33 | $4.75 | 44 C |
| 19944 | 30 | $4.57 | 45 C |
| 19951 | 24 | $4.37 | 46 B |
| 19950 | 24 | $4.70 | 44 C |
| 19941 | 14 | $4.13 | 47 B |
| 19967 | 12 | $2.36 | 55 A |
| 19931 | 5 | $3.18 | 51 A |