Solar Panel Installation in Gaithersburg, MD
Local sun, utility rules, permits and installers
Gaithersburg has about 1,160 kWh a year per kW of rooftop solar (our estimate). Your utility decides what exported power earns, so see the rules for Pepco below, then get quotes.
Gaithersburg solar at a glance
Utility rules and programs for Gaithersburg
Pepco serves homes in Gaithersburg.
| Utility | Type | Solar export rule |
|---|---|---|
| Potomac Electric Power Co | investor-owned | Pepco follows state net metering through its Net Energy Metering rider; surplus credit is applied to your current or future bills, and you may elect to bank credit indefinitely. The contractor creates an account and files on Pepco’s Connect the Grid portal; its page shows no fee for inverter systems of 20 kW or less, so confirm the current schedule. |
Program details are from each utility’s own pages (read October 2026). See the Maryland incentives table for statewide credits and a status for every program.
Permits and approvals in Gaithersburg
- City of Gaithersburg Permitting and Inspections: permit information · 301-258-6330
- The city has a solar permits page and offers the optional SolarAPP+ automated permit for standard rooftop solar and storage. A residential electrical permit is required for all electrical work, and electricians must be licensed with the city.
- The utility must approve the connection before you switch on: Pepco interconnection application · your own utility’s interconnection page.
- Check any contractor on the Maryland Home Improvement Commission license lookup before you sign.
- Maryland law (Real Property section 2-119) bars HOA and covenant rules that unreasonably limit rooftop solar you own or exclusively use, meaning a rule that adds at least 5 percent to cost or cuts output by at least 10 percent (Maryland Real Property 2-119).
Fees and steps change; confirm with the office before you start. We have not verified timelines for Gaithersburg.
Costs and savings
We do not have verified installed prices for Gaithersburg alone. The Maryland figures above show what to expect; real quotes depend on your home, equipment and installer. Try the solar savings calculator, and get at least two written quotes.
Choosing an installer
- License: check the contractor on the Maryland Home Improvement Commission license lookup and that the license covers this work.
- Quote: ask for an itemized written quote that names the equipment, warranties and who pulls the permit and handles the utility approval.
- Compare: get two or three quotes and compare them line by line, not only the total.
Get solar quotes in Gaithersburg
Tell us about your project in Gaithersburg. We reply ourselves and match you with a licensed installer who serves your area. It is free, with no obligation, and nothing is shared with an installer unless you choose one.
More for Gaithersburg
Home Battery Installation in Gaithersburg · Backup Generator Installation in Gaithersburg · Home EV Charger Installation in Gaithersburg · Gaithersburg energy guide · Maryland energy guide.
Solar Panel Installation in Gaithersburg FAQs
Is solar worth it in Gaithersburg?
The sun is strong (about 1,160 kWh a year per kW, our estimate), but export credits are low, so solar pays most when sized to what you use at home or paired with a battery. See the Maryland incentives for the state credit.
Is there a federal solar tax credit in 2026?
No. The federal 25D credit ended for expenditures after December 31, 2025. Maryland has no state solar income tax credit that we found; the state’s help is a sales and property tax exemption, the income-based Solar Access rebate (up to $7,500) and certified solar credits.
Do I need a permit for solar panels in Gaithersburg?
Usually yes, and the utility may need to approve solar and batteries. City of Gaithersburg Permitting and Inspections handles permits in Gaithersburg; see the permit information above.
How do I find a licensed installer in Gaithersburg?
Use the quote button on this page. We reply ourselves and match you with a licensed installer who serves your area; you can check any contractor on the Maryland Home Improvement Commission license lookup.
Sources: sunshine and climate NASA POWER; hazards FEMA National Risk Index; utility numbers EIA-861 (2024); prices EnergySage (October 2026) and Generac (U.S.); credits IRS and the Maryland Comptroller; permit information from the city or town’s own page; utility programs from each utility’s own pages (October 2026). General information, not financial, tax, legal or electrical advice. See our editorial policy.