Is solar worth it in Maryland?

With an average payback period of 10.9 years and 25-year savings of $32,925, solar panels in Maryland are a solid investment.

How much do solar panels cost in Maryland?

The average cost of a 6kW residential solar system in Maryland is $14,400 before incentives and tax credits.

How much can I save with solar panels in Maryland?

Homeowners in Maryland save an average of $1,317 per year with solar panels, totaling approximately $32,925 over 25 years.

Solar Panel ROI in Maryland

Is solar worth it in MD?

2.3x ROI Score

10.9 yrs Payback Period

$1,317 Annual Savings

Key Solar Metrics for Maryland

Solar Irradiance	4.91 kWh/m²/day
Estimated Annual Production (6kW system)	8,333 kWh
Average Electricity Rate	$0.158/kWh
Average System Cost	$14,400
Estimated Annual Savings	$1,317/year
Payback Period	10.9 years
25-Year Savings	$32,925

Maryland vs National Average

Solar Irradiance 4.91 kWh/m²/day -1% vs national avg

National Avg Irradiance 5.12 kWh/m²/day baseline

Payback Period 10.9 years Near average

How We Calculated This

Our solar ROI calculations use data from the National Renewable Energy Laboratory (NREL) PVWatts API, which models solar energy production based on location-specific solar irradiance, weather patterns, and panel tilt angles. We assume a standard 6kW residential system with south-facing panels at optimal tilt.

Electricity rates are sourced from the U.S. Energy Information Administration (EIA) and represent state-level residential averages. Annual savings are calculated by multiplying estimated production by the local electricity rate. The payback period divides system cost by annual savings. The ROI score represents total 25-year savings divided by system cost.

These estimates do not include federal tax credits (currently 30% ITC), state incentives, SRECs, or utility rebates, which can significantly reduce the effective payback period. Actual results vary based on roof orientation, shading, local weather, and utility rate changes.

Compare with Nearby States

Delaware 11.9 yr payback $1,162/yr savings Pennsylvania 12 yr payback $1,214/yr savings West Virginia 14.9 yr payback $914/yr savings Virginia 13.5 yr payback $1,054/yr savings

Solar Outlook for Maryland

Maryland's solar irradiance of 4.91 kWh/m²/day is 1% below the national average. With electricity at $0.158/kWh, the 10.9-year payback is moderate — though incentives and tax credits can significantly shorten it.

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