Solar Panels on a Montgomery County, MD Home: What Changes on Your Insurance

Rooftop solar has become a familiar sight across Montgomery County: south-facing rambler roofs going up in Rockville, new installs along the I-270 corridor, entire blocks in Kentlands or Olney where two or three neighbors go solar within a year of each other. Community buying groups, county sustainability programs and rising electricity rates have all pushed adoption higher, and most homeowners walk into the process focused entirely on the system itself: panel brand, inverter warranty, payback period. Almost nobody calls their insurance agent first.

That's worth fixing, because a rooftop array changes three things about a homeowners policy at once: what's covered, how much coverage you need, and in some cases whether your HOA can say anything about it at all.

Owned or Leased Changes Everything

Before anything else, figure out which kind of system you have, because it determines who insures it.

• Purchased or loan-financed: the panels are yours, and under a standard Maryland HO-3 policy they're typically treated as an attached structure, covered under Coverage A (dwelling) the same as a built-in generator or a permanently installed HVAC unit, subject to the same named perils, deductible and exclusions as the rest of the roof.
• Leased or a power purchase agreement (PPA): the solar company usually still owns the equipment. Read the contract. Most leases and PPAs require you to carry homeowners insurance naming the leasing company as loss payee or additional insured, and some make you responsible for damage to equipment you don't even own. A number of homeowners who signed community solar co-op leases years ago have never confirmed that endorsement is actually on their policy.

Your Dwelling Limit Probably Didn't Move

A residential array in the Rockville and Bethesda market commonly runs somewhere in the $15,000 to $30,000-plus range installed, depending on system size. That's real value added to the home, but Coverage A does not update itself. If the dwelling limit isn't adjusted after installation, a covered loss (a fallen limb that takes out half the array, a lightning strike that fries the inverter and scorches roof decking, a bad hailstorm) gets paid out of a limit that was never sized to include the panels.

Have your agent re-rate the dwelling coverage once the system is installed and get the array's replacement cost added to the total insured value. It's a five-minute update that closes a gap most homeowners don't discover until they're filing a claim.

The Physical Risks Worth Asking About

Panels themselves are tested to withstand hail and wind better than most roofing material, but the installation introduces a few questions worth putting to both your agent and your installer directly:

• Roof penetrations. Racking systems are bolted through the roof deck. Ask how the mounts were flashed and sealed, and keep that documentation. If a leak shows up two years later, it determines whether it's a workmanship issue (the installer's problem) or a maintenance issue (yours).
• Wind uplift rating. Confirm the racking is rated for the wind exposure your specific property sees, not a generic minimum.
• Added roof weight. On an older Rockville or Kensington rambler with original decking, ask whether a structural review was done before installation, not just a solar-suitability assessment based on your electric bill.
• Fire and electrical. Rooftop DC wiring is a known complication for fire crews responding to a roof fire, which is part of why Montgomery County requires rapid-shutdown-compliant systems. Confirm the design meets current code, and keep the permit and inspection sign-off with your policy documents, the same way you would for any major electrical work.

Your Installer's Insurance Is Also Your Problem

The same rule applies here as with any contractor on your roof: ask for a certificate of insurance showing general liability and Maryland workers compensation, sent directly from the installer's insurance agency rather than forwarded as a PDF. Solar work involves a crew at height on an occupied home, and if someone is hurt and the installer is under-insured, that claim has a way of reaching your homeowners liability. It's the same advice that applies to any renovation project, and it applies just as much to a one-day solar install as to a six-month addition.

What Your HOA Can and Can't Do

A meaningful share of Montgomery County's housing stock (Kentlands, Lakelands, large parts of Germantown and North Potomac) sits inside a homeowners or condo association with an architectural review process, and solar is one of the more common points of friction.

Maryland law limits how far that review can go. Under Md. Real Property Code § 2-119, an association cannot restrict a rooftop or exterior-wall solar collector system in a way that increases the installation cost by 5% or more over the original proposal, or cuts the system's projected energy output by 10% or more. To invoke the statute, the homeowner generally needs documentation from a certified solar designer backing up those figures, not just an assertion that the HOA's preferred placement would perform worse.

What the association keeps: the right to restrict panels on common areas, and to set reasonable rules on placement, size and manner of installation, as long as those rules don't cross the cost or output thresholds above. The statute also doesn't reach historic districts. Parts of Rockville and Kensington carry historic-district overlays with their own separate review, and Section 2-119 doesn't override that.

Practical takeaway: submit the architectural review application anyway, even though the law is generally on your side. A documented, approved installation is cleaner for insurance and resale than one installed over an HOA's objection, however unenforceable that objection turns out to be.

Net Metering, Briefly

Maryland's net metering program credits solar homeowners for excess power the system sends back to the grid, which is a big part of what makes the economics work for most Montgomery County installs. That's a utility and tax question, not an insurance one (your agent can't advise you on your Pepco interconnection agreement), but it's worth asking your installer how an extended repair affects those credits. That conversation belongs with them, not with your insurance company.

A Short Checklist Before You Sign the Contract

1. Confirm the ownership structure. Purchased, financed or leased, get it in writing.
2. Call your agent before installation, not after, and ask specifically how the array will be treated under Coverage A.
3. Get the installer's certificate of insurance directly from their agency, confirming general liability and Maryland workers comp.
4. Re-rate your dwelling coverage once the system is installed and inspected.
5. If you're in an HOA, submit for architectural review and keep Section 2-119 documentation on hand in case you need it.
6. Keep the permit, inspection sign-off and racking documentation with your policy file.

The Bottom Line

Solar is one of the few home improvements in Montgomery County popular enough to have its own state law protecting your right to install it, and specific enough, in terms of ownership structure and roof-level risk, that it deserves a real conversation with your agent rather than a policy that quietly stays the same.

If you're weighing a system or already have one installed, we're happy to look at how it fits your current homeowners policy (dwelling limit, liability and the ownership question) across the carriers we represent, as part of a normal coverage review.

This article is general information from a licensed insurance agency, not legal or tax advice. Policy terms and your carrier's decisions control; consult an attorney about your specific situation.