Solar installations in Maryland
110,805 recorded installations — prices, growth by year, county breakdown and the installers doing the work.
Dataset updated . Sources: LBNL Tracking the Sun + city permit records + state programs + USGS/EIA utility-scale.
Most active
Top installers in Maryland
| # | Installer | Installs in MD |
|---|---|---|
| 1 | redacted | 58,804 |
Growth
Installations by year
New installs per year and the running cumulative total, plus % of homes with solar (ACS housing units).
By county
Solar by county in Maryland
| County | Installs | % homes | Capacity | Median $/W |
|---|---|---|---|---|
| Prince George's County | 53,934 | 14.9% | 240.8 MW | $4.14/W |
| Montgomery County | 4,093 | 1.0% | 119.3 MW | $3.11/W |
| Baltimore city | 2,481 | 0.84% | 81.2 MW | $2.20/W |
| Anne Arundel County | 1,842 | 0.78% | 57.1 MW | $3.87/W |
| Baltimore County | 1,668 | 0.48% | 82.5 MW | $4.14/W |
| Howard County | 1,316 | 1.1% | 88.6 MW | $3.10/W |
| Frederick County | 931 | 0.87% | 122.2 MW | $3.39/W |
| Harford County | 867 | 0.83% | 100.8 MW | $4.07/W |
| Charles County | 462 | 0.73% | 52.2 MW | $3.90/W |
| Carroll County | 405 | 0.61% | 30.4 MW | $3.70/W |
| Cecil County | 376 | 0.85% | 29.5 MW | $3.86/W |
| St. Mary's County | 315 | 0.68% | 4.1 MW | $3.30/W |
| Washington County | 250 | 0.39% | 90.8 MW | $3.83/W |
| Wicomico County | 201 | 0.46% | 33.0 MW | $3.85/W |
| Calvert County | 166 | 0.46% | 2.3 MW | $3.57/W |
| Queen Anne's County | 117 | 0.54% | 33.6 MW | $3.68/W |
| Worcester County | 92 | 0.16% | 23.6 MW | $3.85/W |
| Kent County | 74 | 0.72% | 15.0 MW | $3.61/W |
| Caroline County | 49 | 0.36% | 3.2 MW | $4.07/W |
| Talbot County | 43 | 0.22% | 5.3 MW | $3.34/W |
| Dorchester County | 36 | 0.22% | 41.2 MW | $3.60/W |
| Allegany County | 26 | 0.08% | 21.1 MW | $4.16/W |
| Somerset County | 23 | 0.21% | 200.7 MW | $3.92/W |
| Garrett County | 16 | 0.09% | 21.3 MW | $3.63/W |
Counties derived from installation ZIP codes (Census ZCTA crosswalk) — approximate at boundaries. Counties marked limited have under 10 recorded installs, so their medians and penetration are indicative only. % homes = recorded installs ÷ housing units (U.S. Census ACS 5-Year, B25001).
Search every recorded Maryland installation — by installer, size, date, storage and equipment.
Search MD sites →Hardware
Top solar equipment in Maryland
| # | Panel manufacturer | Systems |
|---|---|---|
| 1 | Qcells | 35 |
| 2 | REC | 11 |
| 3 | JA Solar | 9 |
| 4 | Silfab Solar | 6 |
| 5 | JinkoSolar | 5 |
| 6 | Axitec | 5 |
| 7 | SunPower | 3 |
| 8 | Hyundai Energy | 3 |
| # | Inverter manufacturer | Systems |
|---|---|---|
| 1 | SolarEdge | 29 |
| 2 | Enphase | 9 |
| 3 | Tesla | 7 |
| 4 | Delta Electronics | 4 |
From recorded equipment on Maryland systems (Tracking the Sun + state/permit data); counts are systems where the manufacturer is known.
Developers
Top solar developers in Maryland
| # | Developer | Systems |
|---|---|---|
| 1 | Obsidian I Sunstone Fort Meade Holding, Onyx Renewables, Corvais | 5 |
| 2 | Brandywine Sand and Gravel Solar | 4 |
| 3 | Synergen Solar, Neighborhood Sun | 4 |
| 4 | NCS Meadows LLC | 3 |
| 5 | Hampstead Solar, LLC, Arcadia | 3 |
| 6 | SRE MD Solar, LLC, Arcadia | 3 |
| 7 | Urban Grid | 3 |
| 8 | ICFTS MD Solar, LLC, Arcadia | 3 |
Developer/EPC named on the permit or program record — often the same firm as the installer.
Frequently asked questions
How many solar installations are there in Maryland?
PanelCensus records 110,805 solar installations in Maryland, totalling 2.3 GW of capacity — about 4.4% of the state's 2,545,532 housing units (U.S. Census ACS) — compiled from LBNL's Tracking the Sun, city permit records, state programs and USGS/EIA utility-scale data. (Coverage depends on what the state publishes, so actual totals are higher.)
How much does solar cost per watt in Maryland?
The median installed price across priced systems in Maryland is $3.60/W pre-incentive. Year-by-year medians are shown on this page.
Who are the biggest solar installers in Maryland?
redacted has the most recorded installations in Maryland (58,804), followed by — (—).