Solar Panel ROI in Maryland
· Source: NREL PVWatts
Is solar worth it in MD? Here's what the data says.
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25-Year ROI Timeline
With a 10.9-year payback, your system spends 14.1 years in profit after breaking even.
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Maryland vs National 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). Annual savings are calculated by multiplying estimated production by the local electricity rate. The ROI score represents total 25-year savings divided by system cost.
These estimates do not include the federal 30% ITC tax credit, state incentives, SRECs, or utility rebates, which can significantly reduce the effective payback period.
Solar ROI by Zip Code in Maryland
Explore solar data for specific zip codes in Maryland. Click any zip code for a full local breakdown.
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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.
Solar Equipment Worth Considering
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