Nathan Healy
Certified by Nathan Healy
Updated: February 2026
Quality Solar Panels Since 2011
Palmetto has served 20,000+ customers across 31 states with an approval rating over 85%.
01

Solar Power in Gaithersburg

If you’re a Gaithersburg homeowner thinking about solar, you’re not alone. Maryland electricity rates have climbed 37% from 2020 to 2024 — now sitting at 17.88 cents per kWh, above the national average — and many residents across Montgomery County are looking for ways to take control of their energy costs.

This guide covers everything you need to know about solar panels for your home in Gaithersburg, MD — from how the installation process works to what local incentives are available. Here’s what you need to know.

MARYLAND by the Numbers

10th Most residential solar in the United States
100 Households have installed solar panels
4.8 Avg peak sun hours per day
~$84k Gaithersburg average savings over 25 years
02

How Much Do Solar Panels Cost in Gaithersburg, MD?

Using real installation data from Gaithersburg and nearby communities like Rockville, North Potomac, and Germantown, this calculator gives you an accurate estimate of what solar panels would cost for your home — no guesswork, just local numbers.

Small Home Up to 2,000 sq ft
Medium Home 2,000-3,000 sq ft
Large Home Over 3,000 sq ft
System Size
This system size is designed to offset approximately 100% of the average electricity usage for a home of this size in Maryland.
Recommended
System
9.32 kW
Your Monthly Payment
Estimated monthly cost with LightReach
$113/mo
As low as
$113/mo
Why Lease Solar?
Following the 2025 Big Beautiful Bill, the federal 30% solar tax credit is no longer available for cash purchases. With a LightReach lease, Palmetto owns the system and still qualifies for the commercial ITC — passing those savings through to you via lower monthly payments.
  • No upfront investment
  • Palmetto handles all maintenance
  • 90% Production Guarantee
  • Comprehensive protection program included
03

Palmetto Reviews

04

Key Takeaways

  • Maryland electricity rates have risen 37% since 2020, now above the national average — making solar one of the smartest ways for Gaithersburg homeowners to control their energy costs.
  • Gaithersburg homeowners can save up to $84,000 over 25 years with solar, thanks to strong Maryland incentives like net metering, SRECs, and a 100% property tax exemption.
  • You don’t need to buy solar panels to start saving — Palmetto’s LightReach lease program lets Gaithersburg homeowners go solar for as little as $113/month with no upfront cost.
05

Gaithersburg Electricity Prices

Electricity costs in Gaithersburg have been climbing. Here’s what the numbers show — and what some homeowners are doing about it.

Maryland electricity rates rose from 13.1 cents per kWh in 2021 to 17.9 cents per kWh in 2024 — a 37% increase in just three years. That’s now above the national average of 16.5 cents per kWh.

As utility rates rise, more Gaithersburg homeowners are turning to solar. Generating your own electricity means you rely less on the grid — and less on rates you can’t control.

Solar panels typically have a lifespan of 25 to 30 years. Over that time, locking in a more predictable energy cost can offer meaningful protection against continued utility rate increases.

Price of Energy: Maryland vs National Average

10¢
20¢
30¢
13.7¢
13.1¢
15.0¢
14.5¢
16.0¢
16.6¢
16.5¢
17.9¢
2021
2022
2023
2024
US Average
Maryland

Gaithersburg Area Utility Providers

In Gaithersburg, MD, the primary electricity provider is Pepco, which serves most of Montgomery County. According to 2023 data — the most recent available — Pepco’s average rate was 18.2¢ per kWh.

That 2023 Pepco rate sits above both Maryland’s state average of 16.60¢/kWh and the national average of 16.0¢/kWh. Higher regional demand, grid infrastructure costs, and transmission expenses in the Mid-Atlantic corridor all contribute to Pepco’s elevated rates.

When local electricity rates exceed the national average, as Pepco’s do, homeowners who generate their own solar energy can offset more of a higher-cost bill — which can shorten the time it takes for a solar system to pay for itself.

Gaithersburg Utilities Electricity Rates

Pepco
18.20¢
+14%
MD Average
16.60¢
+4%
US Average
16.0¢
06

Maryland Solar Incentives

Gaithersburg homeowners have access to a range of solar incentives in Maryland — from statewide programs to rebates — that can meaningfully reduce the cost of going solar.

Maryland offers several incentives that apply directly to Gaithersburg residents: a full sales tax exemption on solar equipment, a 100% property tax exemption, net metering at the full retail rate, Solar Renewable Energy Credits (SRECs), and low-cost financing through the Maryland Clean Energy Bank.

Note that the federal 30% residential tax credit has been eliminated by the Big Beautiful Bill. For homeowners who lease solar through Palmetto’s LightReach program, Palmetto handles the commercial ITC and passes savings through via lower monthly payments.

Incentive Type Description Source
Maryland Solar Access Program (MSAP) Rebate Grants of $750 per kW (up to $7,500) for low- and moderate-income Maryland homeowners who install solar PV systems. Learn More
Maryland Residential and Commercial Energy Storage (RCES) Grant Program Rebate Grants of up to $5,000 for residential and up to $150,000 for commercial battery energy storage system installations in Maryland. Learn More
Maryland Solar Renewable Energy Credits (SRECs) SREC Maryland solar system owners earn one tradeable SREC for every megawatt-hour of electricity their system generates, which can be sold to utilities for additional income. Learn More
Maryland Net Metering Net Metering Maryland requires utilities to credit solar owners at the full retail rate for excess electricity exported to the grid, with credits that roll over indefinitely. Learn More
Maryland Solar Sales Tax Exemption Sales Tax Exemption Maryland exempts all solar energy equipment from the state’s 6% sales tax, automatically reducing the upfront cost of a solar installation. Learn More
Maryland Solar Property Tax Exemption Property Tax Exemption Maryland offers a 100% real property tax exemption for solar energy systems, ensuring that adding solar panels does not increase your property tax bill. Learn More
Montgomery County Solar Property Tax Credit Tax Credit Montgomery County, where Gaithersburg is located, offers a local property tax credit for residential solar energy systems, stackable with Maryland’s statewide property tax exemption.
Commercial and Canopy Solar Program (CCSP) – FY 2026 Rebate Maryland’s MEA offers grants of up to $500,000 for commercial, nonprofit, and agricultural solar installations, including rooftop, ground-mounted, and canopy systems. Learn More
Maryland Community Solar Program Net Metering Maryland’s permanent Community Solar Program allows residents and businesses to subscribe to off-site solar arrays and receive bill credits, with at least 10% guaranteed savings for low- to moderate-income subscribers.
Maryland Clean Energy Bank (MCGB) Solar Financing Rebate The Maryland Clean Energy Bank offers low-cost solar financing loans with no dealer fees or prepayment penalties, including options to bundle solar with battery storage or electrical upgrades. Learn More

The Maryland Solar Access Program (MSAP), established by the Brighter Tomorrow Act of 2024, provides grants of $750 per kW of installed solar capacity, up to a maximum of $7,500, to help eligible low- and moderate-income Maryland homeowners go solar. A total of $2,000,000 is available for FY 2026, funded through the Strategic Energy Investment Fund (SEIF), and awards are made on a first-come, first-served basis.

To qualify, your home must be owner-occupied and used as your primary residence, and your household income must be at or below 150% of the statewide median income. Installations must be completed by MEA-approved contractors. The FY 2026 program window runs from July 21, 2025 through June 5, 2026 (or until funds are exhausted).

The application process is two-step: first, submit an initial application to reserve funds; then, verify that your solar system is fully installed and operational within 180 days of your fund reservation. As of late 2025, approximately 23% of the program budget had been reserved, meaning funds are still available for eligible applicants in Gaithersburg.

The Maryland Residential and Commercial Energy Storage (RCES) Grant Program, launched in FY 2026 by the Maryland Energy Administration (MEA), replaces the now-expired Maryland Energy Storage Income Tax Credit Program (which ended December 31, 2024). It is designed to support the deployment of battery energy storage systems (BESS) for both residential and commercial property owners across Maryland. A total of $2,000,000 is available from the Strategic Energy Investment Fund (SEIF).

For residential applicants, grants are calculated as the lesser of 30% of installed costs or $5,000. Commercial applicants may receive up to $150,000. Funds are awarded on a first-come, first-served basis, and partial awards are possible if funds are running low. Applications are open until June 5, 2026 at 3:00 PM ET, or until all funds are exhausted.

Both residential and commercial property owners in Gaithersburg seeking to install qualifying grid-connected battery energy storage systems are eligible to apply. For questions or assistance, contact MEA’s Energy Storage Team at [email protected].

Maryland’s Solar Renewable Energy Credit (SREC) program allows solar system owners to earn one SREC for every 1,000 kWh (1 MWh) of electricity their system produces. These certificates are registered and tracked through a revenue-grade meter, and can be sold to Maryland utility companies — which are required under the state’s Renewable Portfolio Standard (RPS) to source a percentage of their electricity from solar — through brokers such as SRECTrade and Sol Systems.

The Solar Alternative Compliance Payment (SACP), which effectively sets a ceiling on SREC prices, is $55 for 2025 and will gradually decrease each year through 2030, settling at $22.50. Recent market prices have been approximately $50–$55 per SREC. As an example, a 5 kW solar array generating roughly 6 MWh annually could earn an additional $300–$330 per year through SREC sales.

To participate, you must register your solar energy system with the state of Maryland. SRECs are earned for the first 15 years of your system’s operation, making this a valuable long-term income stream that complements other Maryland solar incentives available to Gaithersburg homeowners.

Maryland has one of the strongest net metering policies in the country. When your solar panels produce more electricity than your home uses, the excess is exported to the grid and your utility credits your account at the full retail rate of electricity — a true 1-to-1 credit structure. This means the value of electricity you send to the grid equals the value of electricity you pull from it, allowing solar owners in Gaithersburg to significantly offset or eliminate their electricity bills.

Net metering credits in Maryland roll over indefinitely, so you can bank surplus production from sunny months and draw on those credits during cloudier periods or winter months. Maryland’s annual “true-up” reconciliation date is in April: any remaining excess credits at that point can be cashed out as a credit to your utility account, though the cash-out rate is lower than the retail rate. Net metering is available across all major Maryland utilities, including Pepco, which serves Gaithersburg.

It’s worth noting that Maryland has a statewide 3,000 MW capacity limit for net-metered solar systems. While significant capacity remains available, net metering at these favorable terms won’t last forever — locking in the policy now ensures you benefit from the current 1-to-1 structure. Additionally, starting in 2026, a consolidated billing mechanism is being implemented for community solar subscribers, offering a similar net crediting approach with a small 1% administrative fee.

Maryland provides a full sales tax exemption on the purchase of solar energy equipment, including solar panels, inverters, and other eligible components used to generate electricity or hot water. With Maryland’s standard sales tax rate at 6%, this exemption can save homeowners in Gaithersburg approximately $2,000 or more on an average-sized solar installation — with no application or paperwork required.

The exemption is automatically applied at the point of sale for all qualifying solar equipment purchases in Maryland, so you don’t need to take any extra steps to claim it. It applies to both solar photovoltaic (PV) systems and solar water heating systems, covering residential, commercial, and industrial installations.

This incentive works seamlessly alongside other Maryland solar programs such as the MSAP grant, SRECs, and the property tax exemption, helping to reduce the total out-of-pocket cost of going solar from day one.

Installing solar panels typically increases the assessed value of your home — but in Maryland, that added value is completely exempt from state and local real property taxes. The Maryland Department of Assessments and Taxation provides a 100% property tax exemption for solar energy systems used to heat or cool a structure, provide hot water, or generate electricity.

This exemption applies to residential, commercial, and industrial properties across Maryland, meaning both homeowners and businesses in Gaithersburg can benefit. The exemption covers solar photovoltaic (PV) systems as well as solar thermal systems, and it applies to both state and local property taxes — so you won’t see your tax bill go up just because your home’s value increased due to solar.

Given that solar installations can add tens of thousands of dollars in home value, this exemption can represent significant ongoing savings over the life of your system. Combined with Maryland’s county-level property tax credits (available in Anne Arundel, Baltimore, Harford, Howard, Montgomery, and Prince George’s counties), Maryland homeowners enjoy some of the most comprehensive property tax protections for solar in the region.

Gaithersburg is located in Montgomery County, which offers a local property tax credit for residential solar energy systems. This credit is applied directly to your Montgomery County property tax bill and is separate from — and stackable with — Maryland’s statewide property tax exemption. It provides an additional layer of local financial relief on top of state and federal incentives, further reducing the net cost of going solar for residents of Gaithersburg.

Contact the Montgomery County Department of Finance or the Maryland Department of Assessments and Taxation for specific application requirements, credit amounts, and deadlines. Be sure to apply promptly after installation to ensure you capture the full credit.

The Maryland Energy Administration’s FY 2026 Commercial and Canopy Solar Program (CCSP) combines the former Commercial Solar Grant Program and the Solar Canopy and Dual Use Technology Program into a single funding opportunity. A total of up to $13,000,000 is available from the Strategic Energy Investment Fund (SEIF) for rooftop, ground-mounted, and solar canopy systems over parking areas or bodies of water.

Grant amounts vary by applicant type: for-profit businesses and agricultural producers may receive the lesser of $1,700/kW or 75% of total project costs (up to $2,125/kW for canopy systems); nonprofits, small businesses, and veteran-owned businesses may receive the lesser of $2,000–$2,500/kW or 90% of total project costs. The maximum award per entity is $500,000, and awards are made on a first-come, first-served basis.

The program has two areas of interest: Area 1 targets equitable solar access for nonprofits, small businesses, and veteran-owned organizations; Area 2 supports commercial solar for sustainability among Maryland businesses and organizations. The application deadline was February 9–11, 2026. For future funding opportunities, contact [email protected] or visit the MEA website.

Maryland’s permanent Community Solar Program, established by House Bill 908 in 2023 and effective January 1, 2025, allows residents and businesses to subscribe to a share of an off-site solar array and receive credits on their utility bills for the electricity generated by their share — without needing to install panels on their own property. This is an excellent option for renters, condo owners, or homeowners in Gaithersburg with shaded or unsuitable roofs.

Starting January 1, 2026, the program implements consolidated billing, offering a streamlined net crediting mechanism similar to programs in New York and New Jersey. Utilities charge a small administrative fee of 1% of the total bill credit value per month for this service. All community solar projects are required to ensure that a minimum of 40% of subscribers are low- to moderate-income (LMI) households.

LMI subscribers receive guaranteed savings: subscription rates cannot exceed 90% of the monetary value of the bill credit, ensuring at least a 10% discount on their solar energy costs. This makes community solar one of the most accessible pathways to solar savings for Gaithersburg residents who cannot install rooftop solar.

The Maryland Clean Energy Bank (MCGB) provides accessible, low-cost financing for residential and commercial solar installations across Maryland. Borrowers can bundle solar panels, battery storage systems, roof replacements, and electrical upgrades into a single loan — simplifying the financing process and making comprehensive clean energy upgrades more affordable.

MCGB loans come with no dealer fees and no prepayment penalties, giving borrowers the flexibility to pay off their loans early or apply tax credits and rebates directly to their loan balance without incurring additional costs. This is particularly valuable for homeowners in Gaithersburg looking to maximize the benefit of Maryland’s MSAP grants or RCES battery storage grants.

For more information or to apply, contact the Maryland Clean Energy Bank at [email protected] or call 240-453-9000. Montgomery County residents in Gaithersburg may also have access to a specialized 30-year solar loan program through the Montgomery County Green Bank, offering 0% interest for the first 10 years for homes in Equity Emphasis Areas.

Ready to start saving with solar?

Speak with a Palmetto solar expert to find out exactly how much you can save with Maryland incentives.

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07

Gaithersburg Solar Irradiance

Solar panel production varies throughout the year based on daylight hours, weather patterns, and sun intensity. Understanding how seasons affect your solar system helps set realistic expectations for your investment.

Gaithersburg gets four distinct seasons, with snowy winters and humid summers. Despite cloudy stretches, the area receives enough annual sunlight to make solar a smart, productive investment for most homes.

Solar Production in Gaithersburg by Month

Daylight Hours
Energy Production (kWh/day)

What Can Your Solar System Power?

Summer Production (July)

[SummerProduction] kWh/day

In July, your 10 kW system could power:

  • 3.6 average homes (15 kWh/day per home)
  • or Run central AC for 18 hours AND power all other appliances
  • or Fully charge 5.4 Tesla Model 3 electric vehicles

Winter Production (December)

[WinterProduction] kWh/day

In December, your 10 kW system could power:

  • 2 average homes (15 kWh/day per home)
  • or Keep your home heating system running for 15 hours
  • or Fully charge 3 Tesla Model 3 electric vehicles

Annual Production

[AnnualProduction] kWh/year

Over a year, your 10 kW system could:

  • Offset 10 tons of carbon dioxide emissions
  • or Equal the environmental benefit of planting 175 trees
  • or Save approximately $4,234 in electricity costs

Want to know exactly how much solar can power your home?

Get a personalized solar analysis based on your actual home, energy usage, and roof characteristics.

Get My Custom Estimate
08

Solar Panel Systems in Gaithersburg

We’ve mapped thousands of solar installations across the U.S. — and Gaithersburg is full of them! Explore this interactive heatmap to see which neighborhoods and communities near you have already made the switch to solar. Click any hexagon to see how many of your neighbors have gone solar!

09

Leasing Solar Panels

If you’d prefer not to pay the full cost of a solar system upfront, Palmetto offers an alternative through its LightReach program. In Maryland — including Gaithersburg — a Power Purchase Agreement (PPA) is available through major local utilities like Pepco, Baltimore Gas & Electric, Potomac Edison, Delmarva Power, SMECO, and Choptank Electric Cooperative.

With a PPA, you don’t own the system — Palmetto does. Instead of paying a fixed monthly lease amount, you agree to purchase the electricity your panels produce at a set rate per kilowatt-hour (kWh). Because solar panels produce more in summer than winter, your PPA payments will naturally be higher in sunny months and lower in winter — but your annual savings typically work out the same as a lease. Learn more about how PPAs compare to leasing and cash purchase options.

Compared to buying a system outright, a PPA has some meaningful advantages: there’s no large upfront cost, and Palmetto handles all maintenance and monitoring. If something needs fixing, that’s on us — not you. For many Gaithersburg homeowners, this makes going solar simpler and more accessible, with day-one savings and none of the ownership headaches.

Go solar without the investment

With LightReach, there are no investment costs to recoup, loan payments to manage, or maintenance needs to take on. As soon as your panels are active, your solar savings are too!

Learn More
10

Frequently Asked Questions

Yes, solar makes good financial sense for most Gaithersburg homeowners. Maryland electricity rates have risen 37% since 2020, and Pepco’s local rate of 18.2¢/kWh sits above both state and national averages. Combined with Maryland’s strong incentives — net metering, SRECs, and a 100% property tax exemption — homeowners can save an estimated $84,000 over 25 years.

If upfront cost is a concern, Palmetto’s LightReach lease program removes that barrier entirely. Gaithersburg homeowners can go solar with no money down and start saving from day one, with payments starting as low as $113/month.

Yes, Gaithersburg has net metering. Gaithersburg is served by Pepco, which offers 1:1 net metering — meaning for every kilowatt-hour your solar panels send to the grid, you receive a full retail-rate credit on your bill. Excess credits roll over month to month on a per-kWh basis.

At the annual true-up in May, any remaining credits are reconciled at a variable rate of approximately $0.05–$0.07/kWh, and your account resets to zero. This makes net metering one of the most valuable incentives available to Gaithersburg solar homeowners.

Yes, solar panels can increase your home’s value in Gaithersburg. According to a Zillow study, homes with solar panels sell for approximately 4.1% more than comparable homes without them. For a $500,000 home — close to the Gaithersburg median — that’s roughly $20,500 in added value.

Maryland also offers a 100% property tax exemption on the added value solar brings to your home, so Gaithersburg homeowners benefit from the increased resale value without paying higher property taxes.

The most accessible way for Gaithersburg homeowners to go solar is through Palmetto’s LightReach lease — with no upfront cost and a fixed monthly payment starting as low as $113/month for a medium-sized home. Palmetto owns and maintains the system, so there’s nothing out of pocket to get started.

For homeowners who prefer to purchase outright, a cash purchase is also available. Note that the federal 30% residential solar tax credit has been eliminated following the Big Beautiful Bill. Use the calculator above to see specific pricing for your home size.

For many Gaithersburg homeowners, solar is worth it financially — especially through a lease. With Palmetto’s LightReach program, there’s no upfront cost, and your monthly payment is typically less than what you’re currently paying Pepco. That means savings start on day one.

With Pepco’s rate at 18.2¢/kWh — above both state and national averages — the financial case is strong. Homeowners who purchase outright can save an estimated $84,000 over 25 years, while lease customers benefit immediately without any investment to recoup.

Palmetto is a top choice for solar installation in Gaithersburg, MD. As a national company with a strong local presence, we’ve completed 619 installations across Maryland since 2020. We offer some of the most competitive financing options in the industry, including our LightReach lease with no upfront cost and payments starting at just $113/month.

Our trusted installer network ensures quality workmanship for Gaithersburg homeowners, and our team handles everything — from permits to activation. With an approval rating above 85% and reviews from real Gaithersburg customers, we’re committed to making solar simple and accessible for Montgomery County residents.

With Palmetto’s LightReach lease, Gaithersburg homeowners pay one simple monthly payment that covers the solar system, installation, monitoring, maintenance, and a 90% Production Guarantee — with no upfront cost. For a typical 9.32 kW system, the estimated monthly payment is approximately $113/month. Because Palmetto owns the system, the commercial Investment Tax Credit (ITC) still applies and is passed through to you via lower payments.

Most Gaithersburg homeowners find their lease payment is less than their current Pepco bill, meaning savings begin from day one — no large investment required.