How much do solar panels cost in St. Mary's County, MD in 2025?
Solar panel installations in St. Mary's County, MD in the month of February, 2025 have an average cost of $0 per watt.
Based on this cost per watt, solar panels will cost you approximately $0 per 1000 watts (1 kW) of production capacounty. After receiving the 30% federal tax credit, you will spend approximately $0, in St. Mary's County, for a 5 kW solar panel install. Note that a more extensive system could be required to ensure your energy requirements are met.
To the left, you can select a county to view the average roof size and the average maximum generation capacity for residential solar on homes in your area. Outlined below are the costs, payback period, and 20-year average savings for a 5 kW system installed in your county.