Solar in Rockville, MD
With Pepco's electricity at about 23.5¢ per kWh and 1,382 kWh of sun per kW, solar is worth it for a typical Rockville home today: about a 8.2-year payback.
- Payback, typical home
- 8.2 yrsMaryland: 8.9 yrs
- 25-year net
- $59,453after paying $21,140
- Sun
- 1,382kWh per kW per year
- Electricity
- 23.5¢31% above U.S. average
A typical Rockville home, by the numbers
| Utility | Pepco |
|---|---|
| Electricity use | 833 kWh a month |
| Best-value system | 7.2 kW, about 17 panels, 9,950 kWh a year (100% of use) |
| Cost | $21,140 |
| First-year savings | $2,249 |
| Payback | 8.2 years |
| Exported power | Full retail net metering (Pepco) |
Cash purchase, no federal credit, 3.5% yearly rate increases. Run it with your own numbers.
Homes in Rockville
- Owner-occupied homes
- 53%
- Single-family detached
- 41%
- Median home value
- $682k
- Median year built
- 1979
- Population
- 67,671
- Roofs suitable for solar†
- 72%
Census ACS 2020–2024. †Share of 10,491 buildings Google Project Sunroof rated technically suitable (2019 snapshot).
Installers working in Rockville
Public installation records for Maryland don't name installers, so we can't rank local companies here. Browse installers in Maryland.
Always verify the license and get at least three quotes. Compare quotes side by side.
Questions about solar in Rockville
Is solar worth it in Rockville, MD?
For a typical home in Rockville, solar is worth it at 2026 prices: a 7.2 kW system costs about $21,140 after state incentives, saves about $2,249 in year one and pays back in about 8.2 years. Enter your address for an estimate based on your roof and bill.
How much solar power does a system produce in Rockville?
About 1,382 kWh per year for each kW of panels on a south-facing roof, based on PVWatts and local weather. That's 0% more than the Maryland average. East- or west-facing roofs produce roughly 10–20% less.
Who is the electric utility in Rockville?
Most homes in Rockville are served by Pepco, at about 23.5¢ per kWh on average.
How much do solar panels cost in Rockville?
A fair cash price is around $2.95 per watt before incentives, so about $21,140 for a 7.2 kW system. There's no federal tax credit for homeowners who buy in 2026.
Nearby
- North Bethesda 8.1 yrs
- Aspen Hill 8.1 yrs
- Gaithersburg 8.2 yrs
- Potomac 8.2 yrs
- Wheaton 8.1 yrs
- Olney 8.1 yrs
- Bethesda 8.2 yrs
- Montgomery Village 11.6 yrs
- All of Maryland
Data: PVWatts (National Laboratory of the Rockies), EIA-861 2025 adjusted to 2026, U.S. Census ACS, LBNL Tracking the Sun, state policy research as of October 2026.