Nathan Healy
Certified by Nathan Healy
Updated: November 2025
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

Rising energy bills are hitting Gaithersburg homeowners hard. With Maryland electricity prices up 37% from 2020 to 2024, solar panels for home use offer a clear path to lower costs and energy independence.

This guide covers what you need to know about solar panel installation in Gaithersburg—from local incentives to system costs and the installation process.

MARYLAND by the Numbers

10th Most residential solar in the United States
100k 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?

Our calculator uses real installation data from Gaithersburg homeowners—including neighborhoods like North Potomac, Kentlands, and Quince Orchard—to show you accurate solar costs. Get personalized estimates based on what your neighbors actually paid, not industry averages.

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
Cost Breakdown
Your estimated investment
System Cost
$26731
Price per Watt
$2.87
Final
Cost
$26731
Savings
Your total financial benefit
Monthly Savings
Average utility bill reduction
$191
Payback Period
Break-even point
10.0 years
25-Year
Savings
$83552
Have you considered leasing?

You can still access the solar tax credit through Palmetto. Talk to us today to find out how.

03

Palmetto Reviews

04

Key Takeaways

  • Gaithersburg electricity rates jumped 37% since 2020 to 17.9¢/kWh, making solar panels a smart hedge against rising utility costs.
  • Maryland homeowners save an average of $84,000 over 25 years with solar, plus benefit from property tax exemptions and solar credits.
  • A typical 10 kW system costs $26,731 in Gaithersburg and pays for itself in about 10 years through electricity savings.
05

Gaithersburg Electricity Prices

Understanding electricity costs helps Gaithersburg residents make informed energy decisions. Maryland’s rates have climbed steadily, outpacing the national average since 2023.

Maryland electricity rates jumped from 13.1 cents per kWh in 2021 to 17.9 cents in 2024—a 37% increase. Gaithersburg residents now pay more than the national average of 16.5 cents per kWh.

Solar panels generate electricity at a fixed cost, protecting homeowners from rate increases. By producing your own power, you reduce dependence on the grid and gain more control over monthly energy expenses.

Over 25 years, solar systems can save Gaithersburg homeowners thousands of dollars. While utility rates continue rising, solar offers predictable costs and long-term protection against future price increases in Maryland’s energy market.

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

Gaithersburg residents receive electricity primarily from PEPCO, which charged 18.2¢ per kWh in 2023. That rate sits above both the national average of 16.0¢ and Maryland’s state average of 16.6¢ per kWh.

PEPCO’s higher rates reflect Maryland’s energy infrastructure investments, grid modernization costs, and the region’s dependence on natural gas and imported power. These factors create upward pressure on electricity prices for local homeowners.

When utility rates exceed national averages, solar becomes more economically attractive. Higher electricity costs mean greater monthly savings potential, helping solar systems pay for themselves faster while protecting against future rate increases.

Gaithersburg Utilities Electricity Rates

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

Maryland Solar Incentives

Gaithersburg residents can access multiple state and local programs to reduce solar installation costs through solar incentives in Maryland.

Maryland offers tax exemptions that eliminate sales tax on equipment and prevent property tax increases from adding solar. Income-qualified homeowners may receive grants up to $7,500, while all solar owners can earn ongoing income through renewable energy credits.

These programs change frequently and some operate on first-come, first-served basis. Review current eligibility requirements and application deadlines to maximize your savings.

Incentive Type Description Source
Property Tax exemption State tax exemption Prevents property tax increases from solar installations. Savings from MD’s 1.05% property tax rates. Learn More
Sales Tax exemption State tax exemption 6% Tax exemption. No state sales tax on solar equipment and installation. Saves $1,200 on a $20k system upfront. Learn More
Solar Access Program State program Up to $7,500 ($750/kW). Income-qualified grant (=150% state median income). Replaces previous $1,000 rebate in 2025. First-come, first-served. Learn More
Solar Renewable Energy Credits (SRECs) State program Extra income from selling credits. 6kW system (~8 MWh/year) earns about $400/year. Prices vary with market. Learn More

Maryland’s Property Tax Exemption for solar energy systems ensures that adding solar panels to your home won’t increase your property taxes. When you install solar equipment, it’s completely exempt from real property tax assessment. This means even though solar panels typically increase your home’s value, that added value won’t be factored into your annual property tax bill.

This exemption applies to equipment installed to use solar energy to generate electricity for use in your home or to supply power to the electric grid, as well as solar thermal systems that provide hot water. The exemption is automatic once your solar system is installed—there’s no application process or annual renewal required. This benefit continues for as long as you own the solar equipment, providing ongoing savings that make your investment in clean energy even more affordable over time.

Maryland’s sales tax exemption removes the state’s 6% sales tax from the purchase of solar energy equipment and systems. This means when you buy solar panels, inverters, batteries, and other qualifying solar equipment in Maryland, you won’t pay the sales tax that would normally apply to these purchases. For a typical residential solar system costing $25,000, this exemption saves you approximately $1,500 at the time of purchase.

This exemption is available to all Maryland homeowners and businesses purchasing qualifying solar energy equipment. There are no income restrictions, system size limitations, or application requirements—the tax exemption is automatically applied at the point of sale by your solar installer or equipment vendor. The exemption applies to both the equipment itself and any materials directly incorporated into your solar energy system. However, it’s important to note that general construction materials, tools, and labor services remain subject to standard sales tax rates. Your solar provider should clearly itemize which components qualify for the exemption on your purchase invoice.

The Maryland Solar Access Program (MSAP) is a state-funded grant program that helps eligible Maryland homeowners install solar panel systems on their homes. Established through the Brighter Tomorrow Act of 2024, this program provides direct financial assistance to residents who meet specific income requirements. The program operates on a first-come, first-served basis, meaning applications are processed in the order they’re received until funding runs out.

The program has a total budget of $12 million for fiscal year 2026. Grant amounts vary based on individual circumstances and system size—you can use the program’s Maximum Offer Calculator to estimate your potential grant. The application process involves two steps: first, you’ll reserve funds with an initial application, then you’ll complete a verification after your solar installation is finished. Applications are accepted from July 21, 2025 through June 5, 2026 at 12:00 PM ET.

To qualify, you must meet the program’s income requirements and work with an approved contractor from the Participating Contractor List. Your solar contract must be executed on or after June 13, 2025. Important note: if your solar system has already received funding from Maryland’s Solar Energy Equity Grant Program, it’s not eligible for this program—no exceptions are made. You can apply directly or have your contractor apply on your behalf through the online portal.

Solar Renewable Energy Credits (SRECs) are tradable certificates that represent the environmental benefits of solar energy production. For every 1,000 kilowatt-hours (1 megawatt-hour) your solar system generates, you earn one SREC. These credits exist because Maryland law requires energy suppliers to obtain a certain percentage of their power from solar sources—14.5% by 2030. When suppliers can’t generate enough solar energy themselves, they purchase SRECs from homeowners like you to meet their legal requirements.

The financial value of SRECs fluctuates based on market demand, and you have several options for monetizing them. You can sell your SRECs directly to energy suppliers, work with an SREC aggregator who sells them on your behalf as part of a larger group, or hold onto them for up to three years in hopes of a better price. For example, a typical 10-kilowatt residential system producing 12,000 kilowatt-hours annually would generate 12 SRECs per year. The actual dollar amount you receive depends on current market rates, which vary throughout the year.

To participate, you must register your solar system with the Maryland Public Service Commission within 30 days of installation, then complete registration through PJM Interconnection’s Generator Attribute Tracking System (GATS). One important consideration: if you sell your SRECs, you’re selling the environmental attributes of your solar energy to the buyer. This means they can claim to be using solar energy, not you. If maintaining the environmental bragging rights matters to you, you can choose to keep your SRECs rather than selling them—the environmental benefit to Maryland remains the same either way.

Net metering in Maryland allows you to earn credits on your electricity bill for the excess solar energy your system produces. When your solar panels generate more electricity than your home uses, that surplus power flows back to the grid, and your utility company credits your account at a 1:1 rate. This means you receive the full retail electricity rate for every kilowatt-hour (kWh) you send to the grid, which you can then use to offset future electricity charges when your panels aren’t producing enough power (like at night or on cloudy days).

All major Maryland utilities participate in net metering, including Baltimore Gas & Electric (BG&E), Pepco, Potomac Edison, Delmarva Power, Southern Maryland Electric Cooperative (SMECO), and Choptank Electric Cooperative. Your monthly excess credits roll over from month to month throughout the year, giving you flexibility to use them when you need them most. However, each utility conducts an annual “true-up” period between April and May, depending on your provider. During this true-up, any remaining excess credits are paid out at a lower wholesale rate (typically between $0.04 and $0.07 per kWh), and your account resets to zero. It’s worth noting that if you’re a BG&E customer, the three time-of-use (TOU) rate schedules are not compatible with net metering, so you’ll need to remain on a standard rate plan to participate.

Ready to start saving with solar?

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

Get a Free Quote
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 experiences four distinct seasons with varying sun angles and daylight hours. Despite occasional cloudy winters, the area receives ample annual sunshine for excellent solar production year-round.

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 every solar installation across the United States to help you explore solar adoption in your area. This interactive map highlights Gaithersburg neighborhoods where your neighbors have already made the switch to clean energy.

09

Leasing Solar Panels

Gaithersburg homeowners have access to Power Purchase Agreements (PPAs) through all major local utilities, including Pepco, Baltimore Gas & Electric, Potomac Edison, Delmarva Power, SMECO, and Choptank Electric Cooperative. With a PPA, you pay only for the electricity your panels produce at a fixed rate per kilowatt-hour—typically lower than your current utility rate.

Unlike purchasing a system outright, PPAs eliminate upfront costs, loan payments, and maintenance responsibilities. Palmetto owns and maintains the equipment while you enjoy immediate savings on your electric bill. This arrangement makes solar accessible without the investment burden of ownership, and you still benefit from clean energy production.

Learn more about how LightReach can help you start saving with solar through flexible financing options designed for Maryland homeowners.

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 strong financial sense in Gaithersburg. Maryland electricity rates jumped 37% since 2020 to 17.9¢/kWh, making solar panels an effective hedge against rising costs.

A typical 10 kW system costs around $26,731 and saves homeowners approximately $84,000 over 25 years. With Maryland’s property tax exemption, sales tax exemption, and solar credit programs, most systems pay for themselves in about 10 years through electricity savings.

Yes, Gaithersburg has net metering through all major local utilities including Pepco, Baltimore Gas & Electric, Potomac Edison, Delmarva Power, SMECO, and Choptank Electric Cooperative. Maryland’s net metering policy credits you at a 1:1 rate for excess solar energy sent to the grid.

Your monthly excess credits roll over throughout the year. Each utility conducts an annual true-up between April and May, paying out remaining credits at a wholesale rate ($0.04-$0.07/kWh) before resetting your account to zero.

Yes, solar panels increase home value in Gaithersburg. Research from Zillow shows solar panels increase home value by 4.1% on average nationwide. For a median-priced Gaithersburg home, this translates to thousands of dollars in added equity.

Maryland’s property tax exemption means you gain this value without higher property taxes. Solar panels also make homes more attractive to buyers seeking lower energy costs and environmental benefits, often leading to faster sales in competitive markets.

Solar panel costs in Gaithersburg depend on your home size and energy needs. A typical medium home (2,000-3,000 sq ft) needs a 9.32 kW system costing approximately $26,731, or $2.87 per watt.

Smaller homes under 2,000 sq ft average $20,604 for a 6.97 kW system, while larger homes over 3,000 sq ft need about $34,418 for a 12.26 kW system. Maryland’s sales tax exemption and property tax exemption help reduce your total investment.

Solar delivers strong financial returns in Gaithersburg. A typical 10 kW system costs $26,731 and saves approximately $84,000 over 25 years, with a payback period of about 10 years.

Maryland’s 37% electricity rate increase since 2020 makes solar an effective hedge against rising costs. Combined with property tax exemptions, sales tax exemptions, and solar credits, your system generates immediate savings while protecting against future rate hikes.

We’re a national solar company with deep local expertise in Maryland. Since 2020, we’ve completed 619 installations across the state, giving us unique insight into Gaithersburg’s solar conditions and permitting requirements.

We offer flexible financing options and work with a trusted network of local installers who understand Maryland’s specific building codes and utility interconnection processes. Our team handles everything from design to installation, making your switch to solar straightforward and stress-free.