Maryland Solar Panel Permits & Incentives Guide

Quick Answer: Maryland Solar Permits & Incentives at a Glance

Maryland solar installations require local permits, not state-level authorization. Maryland does not have a statewide solar permitting authority. Your county or municipality issues the building and electrical permits, sets the fees, and schedules inspections.

On the incentive side, Maryland's Renewable Energy Portfolio Standard (RPS) creates ongoing demand for Solar Renewable Energy Credits (SRECs), which can generate revenue for system owners. Local governments may offer property tax credits under Title 9 of Maryland's property tax code (Md. Code, Property Tax §9-203 and §9-242). The federal Residential Clean Energy Credit (IRS §25D) covers 30% of your system cost through 2032 and stacks with state and local programs.

Maryland offers strong solar incentives, but your first call is to your county permitting office, not Annapolis.

Navigating Solar Panel Permit Requirements in Maryland

Permitting authority in Maryland rests entirely at the local level. Counties and incorporated cities run their own permitting departments, set their own fee schedules, and conduct their own inspections. No Maryland state agency issues solar installation permits or sets a uniform statewide permitting process, though the Montgomery County Department of Permitting Services serves as the permitting authority for unincorporated areas of Montgomery County and handles some regional coordination.

Types of Permits Typically Required

Most Maryland jurisdictions require at least two permits for a rooftop solar installation:

• Building permit: Covers structural work, roof penetrations, and mounting hardware, ensuring the roof can support the added load.
• Electrical permit: Covers wiring, inverters, disconnect switches, and the connection to your main panel. In most counties, this must be pulled by or in coordination with a licensed Maryland electrician.

Some jurisdictions require a mechanical permit for solar thermal components; this is generally not needed for standard PV.

Documentation You'll Typically Submit

Prepare the following before you apply:

• Site plan detailing panel placement, roof setbacks, and firefighter access pathways (often following International Fire Code guidelines)
• Electrical single-line diagram of the complete system, from panels to utility interconnection
• Structural analysis or engineer's letter confirming roof load capacity, especially for older homes or complex roof configurations
• Equipment spec sheets for panels, inverters, and racking systems
• Contractor license number and proof of insurance

Inspections After Installation

After installation, your contractor schedules a rough-in electrical inspection before wiring concealment, followed by a final inspection upon completion. The inspector signs off, and that paperwork goes to your utility as part of the interconnection process. Do not energize the system before final inspection sign-off.

Local Permitting Variation

Montgomery County runs permits through the Montgomery County Department of Permitting Services (permittingservices.montgomerycountymd.gov). Baltimore City has its own Department of Housing and Community Development. Anne Arundel County uses its Inspections and Permits division. Prince George's County operates through its Department of Permitting, Inspections and Enforcement. Requirements, fees, and turnaround times differ meaningfully between these offices. Always verify current requirements directly with your specific jurisdiction before submitting.

Maryland State & Local Solar Incentives: Rebates, Credits & Programs

RPS and Solar Value

Maryland's Renewable Energy Portfolio Standard, administered by the Maryland Public Service Commission (psc.state.md.us), requires electricity suppliers to source a growing percentage of retail sales from eligible renewables, reaching 50% by 2030 under the Clean Energy Jobs Act of 2019. The RPS is divided into tiers, with solar carve-outs in Tier 1. This creates demand for Solar Renewable Energy Credits (SRECs), which residential and commercial system owners can generate and sell. SREC prices fluctuate with market conditions, so treat this as supplemental income rather than a guaranteed fixed return. Check current SREC market prices through brokers or aggregators before sizing your financial projections.

Property Tax Credits: The Local Option

Title 9 of Maryland's property tax code gives local governments the authority, but not the obligation, to offer property tax credits for buildings equipped with solar, geothermal, or qualifying energy conservation devices (Md. Code, Property Tax §9-203). A separate provision (Md. Code, Property Tax §9-242) allows credits for high-performance buildings. Whether your county has exercised this option, and at what credit level, varies. Check with your specific county's finance or tax office.

Howard County Example

Howard County has exercised the state option under both Md. Code, Property Tax §9-242 and §9-203. The county offers property tax credits for new and existing multi-family residential and commercial buildings meeting certain high-performance building standards, and for energy conservation devices installed in LEED-certified buildings. Details, current credit percentages, and application forms are available through the Howard County Government finance office (howardcountymd.gov/finance/tax-credits). Residential single-family homeowners should confirm current eligibility directly with Howard County, as program specifics can change.

State Grant Programs (Non-Residential)

Two Maryland Energy Administration programs exist, though they are not for typical residential homeowners:

Decarbonizing Public Schools Program: Administered by the Maryland Energy Administration in partnership with the Interagency Commission on School Construction, this program funds solar installations and energy efficiency upgrades at K-12 public schools. Incentive amounts vary by area of interest. This is not a residential program (energy.maryland.gov/Pages/SchoolDecarbonization.aspx).

Higher Education Clean Energy Grant Program: Also administered by the Maryland Energy Administration, this competitive grant funds solar installations, clean energy planning, and workforce training at Maryland colleges and universities. Eligibility criteria and application requirements are published in annual Funding Opportunity Announcements (energy.maryland.gov/Pages/HigherEducationCleanEnergy.aspx). This is also not a residential program.

Finding Current Program Information

The most reliable aggregator for Maryland incentive programs is