MD · Solar + Battery

Solar quotes in Rockville, MD.

Battery-coupled solar closes most often in Maryland. One real quote from a vetted local installer, with the federal Clean Tech ITC (30%) on storage stacked with state net metering.

One vetted local installer · no lead list
What you get
  • One vetted local Rockville installer
  • Rebates checked for your exact address
  • No call-center spam, no lead list
7 kW
Average system size
$2.95/W
Average cost (USD)
8 yrs
Average payback
220+
Local installers

Why solar in Rockville

Maryland pays a flat $1,000 rebate for a qualifying residential solar system, and there is one condition inside it that can cost you the whole amount if you get it wrong at the start. The installation must be completed by an installer certified by the North American Board of Certified Energy Practitioners. Choose an installer who is not certified and no amount of paperwork afterwards recovers the rebate.

The installer requirement comes before everything else

The Maryland Energy Administration Residential Clean Energy Rebate Program pays $1,000 for a qualifying residential solar photovoltaic system. The installation must be completed by an installer certified by the North American Board of Certified Energy Practitioners.

That is a condition on who does the work, so it has to be settled while you are still choosing between quotes rather than after. Ask every installer directly whether the installation will be completed by a NABCEP certified installer, and ask for the certification details rather than a general assurance.

It is also a reasonable quality signal in its own right. A certification requirement attached to a state rebate is one of the few filters a homeowner has that does not depend on reviews or on a sales conversation.

If an installer is cheaper but not certified, weigh the difference against the $1,000 you would forfeit, and against what the certification requirement suggests about the state's view of the work.

The other three conditions, and the deadline

The system must be installed at your primary residential property. A second home or an investment property does not qualify, which is worth knowing before you plan around the rebate.

The system must have a capacity of at least 1 kilowatt. That will not constrain a normal rooftop installation, but it does rule out very small demonstration systems.

The application must be submitted to the MEA within 12 months of installation. Twelve months sounds generous and it is exactly the kind of deadline people miss, because by then the project is finished and nobody is thinking about paperwork. Diarise it the day the system is switched on.

The rebate is offered on a first come, first served basis, so it depends on available funding rather than being an entitlement. Confirm the current funding status with the MEA before you build the $1,000 into your arithmetic.

The rebate is the smallest part of the stack

Maryland credits exported solar at the retail electricity rate under a framework administered by the Public Service Commission, with credits accumulating through the year and an annual reconciliation. Ask your utility what happens to a remaining surplus at that point.

Separately, one megawatt-hour of production generates one SREC, so a system producing 12,000 kilowatt-hours over a typical year generates about 12 a year. Over the life of a system that ongoing income is worth considerably more than the one-off rebate.

To earn them your system must be registered with the Maryland Public Service Commission, and within 30 days of registering the owner needs to go to PJM Interconnection's Generator Attribute Tracking System for next steps. Ask your installer in writing whether they handle that.

So there are three things to keep track of: the rebate application within 12 months, the PSC registration and GATS enrolment, and the net metering arrangement. Put all three on a list at the start of the project.

The exemptions that need no application, and the credit that ended

Under Maryland Tax-Property Article Section 7-242, residential solar energy property is not subject to real property tax, so the improvement does not raise your property tax bill the way a renovation of similar cost would. Solar energy equipment is also exempt from the state sales and use tax.

Neither arrives as a payment, which is exactly why both get left out of people's own arithmetic. Check that your quote reflects the sales and use tax exemption rather than assuming, and add the property tax treatment to your own figures even though no installer will hand it to you.

The federal position has changed and much published material has not caught up. The 30 percent Residential Clean Energy Credit under Section 25D expired for property placed in service after December 31, 2025, so a cash or loan purchase now receives no federal credit. A quote that still applies it is overstating your return substantially.

Section 48E survives at 30 percent for third-party owners under leases and power purchase agreements, so such a provider may claim it and reflect part of the value in the rate offered. Ask what they claim and what actually reaches you, and confirm with a tax advisor rather than with the sales material.

Incentives & rebates

Net metering: Full retail net metering (PSC-administered)

Maryland credits exported solar at the retail electricity rate, and the framework is set by statute and administered by the Public Service Commission, so it is broadly the same whether you are served by BGE, Pepco, Delmarva Power or Potomac Edison. Credits accumulate through the year and there is an annual reconciliation, so ask your utility what happens to a remaining surplus at that point and what options you have for carrying credits forward instead. Net metering is separate from and stacks with SREC income.

Battery + Storage

Why solar + battery in Rockville

Maryland is one of the better residential solar markets on the east coast, and it is unusual in paying homeowners through two separate channels rather than one. Net metering credits exported electricity on your bill, and separately your system earns Solar Renewable Energy Certificates, one for every megawatt-hour generated, which you can sell into a real market. Maryland's Renewable Portfolio Standard law requires 14.5 percent solar, 2.5 percent off-shore wind and 50 percent total renewables by the end of calendar year 2030, and that requirement is what creates buyers for those certificates. The Maryland Energy Administration also pays a flat $1,000 rebate for a qualifying residential system. The 30 percent federal Residential Clean Energy Credit under Section 25D expired for property placed in service after December 31, 2025, so a cash or loan purchase in 2026 receives no federal credit, though a lease or power purchase agreement provider may still claim the surviving commercial Section 48E credit.

✓ Federal Clean Tech ITC 30% on storage ✓ Outage resilience

How payback works in Maryland

System cost
$20,650
Estimated net cost
$20,650
Estimated payback
~12.7 years
25-year net savings
~$19,850

These figures are illustrative; your actual quote reflects your roof, sun exposure, and local utility rates.

Frequently asked questions

How do I qualify for the $1,000 Maryland rebate?
The system must be at your primary residential property, be at least 1 kilowatt, be installed by an installer certified by the North American Board of Certified Energy Practitioners, and the application must reach the MEA within 12 months of installation.
Does my installer have to be certified?
Yes. The installation must be completed by a NABCEP certified installer, so settle that while choosing between quotes rather than afterwards. Ask for the certification details rather than a general assurance, since nothing recovers the rebate later.
Is the rebate guaranteed?
No. It is offered on a first come, first served basis, so it depends on available funding rather than being an entitlement. Confirm the current funding status with the Maryland Energy Administration before building $1,000 into your arithmetic.
What else should I be tracking?
Three things: the rebate application within 12 months of installation, the Public Service Commission registration plus the GATS step within 30 days of registering, and your net metering arrangement. Put all three on a list at the start of the project.

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