Rocky Ridge, MD 21778 solar market data
Updated January 19, 2021Older data · growth withheldProvisional score · under 500 installs By The SolarDNA Data Team
Rocky Ridge 21778 has 1 solar installations at a median installed cost of $2.95/W, recent growth not yet measurable, and a Market Score of 54 — higher than 97% of U.S. zip markets.
Zip Market Score
Excellent · higher than 97% of zips
Versus Maryland
How 21778 compares with the state
Installed cost
$0.76/W below
state median $3.71/W
Market score
54 vs 68
Maryland scores 68
Share of state installs
0.00%
of 31.5K tracked statewide
Battery attach
0.0%
state 0.0%
Statewide momentum
▲ 35.7%
residential solar added in Maryland, 12 months through Jul 2026
Statewide market
127.7K systems
7.8% of homes · utility-reported through Jul 2026
Growth & pricing
21778 by year
1 installs in the trailing twelve months vs 0 before
Installations by year
Median installed cost, $/W DC by year
Installer comp set
Who installs in 21778
Ranked by systems recorded in this zip
| # | Installer | Installs | 12-mo | Avg kW | $/W |
|---|---|---|---|---|---|
| No installer has recorded systems here yet. | |||||
Neighboring zips
The nearest zip markets
By distance between zip centroids
| Zip | Distance | Installs | $/W | Score |
|---|
Frequently asked
Quick answers about 21778
How many solar installations are there in 21778?
SolarDNA counts 1 active solar installations in Rocky Ridge 21778, 1 of them residential, with data through January 19, 2021.
How much does solar cost in 21778?
The median residential system in 21778 cost $2.95 per watt over the trailing twelve months, $0.76/W below the Maryland median.
Is solar growing in 21778?
Recent growth cannot be measured yet for 21778: insufficient recent data (data runs through January 19, 2021).
Who installs solar in 21778?
No installer has enough recorded systems in 21778 to rank yet.
Is 21778 a good market for solar sales?
21778 scores 54 out of 100 (Excellent, higher than 97% of U.S. zip markets). With under 500 installations the score is provisional.