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Federal Credit Update: The 30% solar ITC and home improvement credits expired Dec 31, 2025. State & local programs may still offer savings.See what changed →

Solar Panel Installation Cost in Longmont, CO

How much do solar panels cost in Longmont, CO? Compare solar panel installation costs, state rebates, heat pump incentives & local utility programs. Find solar panels for your home with our free calculator.

Last updated: March 3, 2026

Avg System Cost

$14,307

Net After Incentives

$0

Solar Panel Cost & Savings in Longmont

Average System Cost

$14,307

$2.86/W (median: $2.83/W)

Longmont Savings Breakdown

ItemAmount
Average System Cost$14,307
State Incentives (CO)-$41,080
Total Incentives-$42,730
Estimated Net Cost$0
Price range:$12,161
$16,453

Data sourced from EnergySage & Rewiring America APIs. Incentive values are estimates based on a representative homeowner profile. Run the calculator for a personalised breakdown.

Available Incentives

15 programs available for CO residents

stateActive

30% discount off the purchase price of qualifying electric lawn equipment from participating retailers.

via State of Colorado

electric outdoor equipment

$300

30% credit

stateActive

Income-qualified Coloradans can receive a $9,000 rebate to replace old or high-emitting vehicles with a new BEV or PHEV.

via Colorado Energy Office

new electric vehicle

$9,000

flat amount

stateActive

Income-qualified Coloradans can receive a $6,000 rebate to replace old or high-emitting vehicles with a used BEV or PHEV.

via Colorado Energy Office

used electric vehicle

$6,000

flat amount

countyActive

Returning in 2026 - Persons with disabilities may be eligible for a point-of-sale rebate up to $900 on an adaptive e-bike.

via City and County of Denver

ebike

$1,200

flat amount

countyActive

Returning in 2026 - $450 to $900 point-of-sale rebate on the purchase of an e-bike.

via City and County of Denver

ebike

$450

flat amount

stateActive

Rebate of 100% of ENERGY STAR heat pump water heater costs for households below 80% AMI, up to $1,750.

via Colorado Energy Office

heat pump water heater

$1,750

100% credit

stateActive

Rebate of 100% of ENERGY STAR cold climate heat pump costs for households below 80% AMI, up to $8,000.

via Colorado Energy Office

ducted heat pumpductless heat pump

$8,000

100% credit

stateActive

Rebate of 100% of ENERGY STAR heat pump clothes dryer costs for households under 80% AMI, up to $840.

via Colorado Energy Office

heat pump clothes dryer

$840

100% credit

stateActive

Rebate of 100% of ENERGY STAR electric stove, cooktop, range, or oven costs for households under 80% AMI, up to $840.

via Colorado Energy Office

electric stove

$840

100% credit

stateActive

Rebate of 100% of electrical wiring costs for households below 80% AMI, up to $2,500.

via Colorado Energy Office

electric wiring

$2,500

100% credit

stateActive

Rebate of 100% of electrical load service center (electrical panel) costs for households under 80% AMI, up to $4,000.

via Colorado Energy Office

electric panel

$4,000

100% credit

stateActive

Rebate of 100% of insulation, air sealing, and ventilation costs for households under 80% AMI, up to $1,600.

via Colorado Energy Office

other insulationother weatherizationwall insulationfloor insulation

$1,600

100% credit

stateActive

Rebate of 100% of ENERGY STAR heat pump costs. For space heating and cooling in households below 80% AMI, up to $3,000.

via Colorado Energy Office

ducted heat pumpductless heat pump

$3,000

100% credit

stateActive

Bonus state tax credit of $2,500 for Coloradans purchasing or leasing an EV with a MSRP up to $35,000. Some dealers offer this as an upfront discount.

via Colorado Energy Office

new electric vehicle

$2,500

flat amount

stateActive

State tax credit of $750 for the purchase or lease of a new BEV or PHEV (maximum MSRP: $80,000). Some dealers offer this as an upfront discount.

via Colorado Energy Office

new electric vehicle

$750

flat amount

Solar Panel Installers in Longmont

EnergySage Verified

No verified installers found in Longmont yet.

Use the calculator to get matched with local installers.

Solar Energy in Longmont, CO: Complete Guide

Longmont, Colorado, is poised to become a solar energy leader in 2026, thanks to its favorable climate and commitment to sustainable energy solutions. With an average of over 300 sunny days a year, the city boasts an excellent solar potential, making it an attractive option for homeowners looking to invest in solar panels. Local utilities, including Longmont Power & Communications, are supportive of renewable energy initiatives, offering various incentives to encourage solar adoption. The federal 30% Investment Tax Credit (ITC) remains a significant motivator, allowing homeowners to reduce their tax burden while investing in solar installation in Longmont. With the combination of state and local rebates, now is an opportune time for residents to consider harnessing the sun's energy, reducing utility bills, and contributing to a more sustainable future.

Solar Potential in Longmont

Longmont's solar potential is robust, with approximately 300 sunny days each year, translating to around 5.5 to 6.0 peak sun hours daily. The city's semi-arid climate ensures ample sunlight for solar energy production, though seasonal variations may affect output during winter months. The ideal roof orientations for solar panels in Longmont are south-facing, providing maximum exposure to sunlight. Homeowners with unshaded roofs will experience the most significant benefits, while those with trees or other obstructions should consider potential adjustments or alternative solar solutions. Overall, Longmont's climate is conducive to effective solar energy generation.

Local Solar Incentives & Rebates in Longmont

Longmont residents can access a variety of local incentives and rebates to make solar energy more affordable. The city offers programs that complement state and federal incentives, such as the 30% ITC. Longmont Power & Communications has been known to provide specific rebates for solar installation, which can significantly lower the upfront costs. Homeowners should check the Longmont city website or contact local utility providers to discover the latest offerings. Typical local incentives may include performance-based incentives, sales tax exemptions on solar equipment, and property tax exemptions. Understanding these options can help homeowners make informed decisions about their solar investments.

Solar Installation Tips for Longmont Homeowners

For homeowners in Longmont looking to install solar panels, it's crucial to start by researching and choosing qualified installers. Obtain multiple quotes to compare costs and services, ensuring you select a company with a solid reputation and experience in the local market. Understanding the permitting process is essential, as Longmont may have specific regulations regarding solar installations. Additionally, check for any Homeowners Association (HOA) guidelines that may impact your solar setup. Planning your installation timeline is important; typically, the process can take anywhere from a few weeks to a few months, depending on permitting and installation schedules.

Frequently Asked Questions About Solar in Longmont

How much do solar panels cost in Longmont, Colorado?

In Longmont, the cost of solar panels typically ranges from $15,000 to $25,000 for a residential installation, depending on the system size and individual energy needs. This cost may vary based on factors such as the type of solar technology, installation complexity, and available incentives. Homeowners can benefit from federal and state incentives, which can significantly reduce the overall investment.

What solar rebates are available in Longmont?

Longmont homeowners can take advantage of several solar rebates, including the federal 30% Investment Tax Credit (ITC) and local utility rebates offered by Longmont Power & Communications. These incentives can help offset the initial costs of solar installation. Additionally, state-level incentives may also be available, so homeowners are encouraged to research and inquire about the most current offerings to maximize their savings.

How many solar installers serve Longmont, Colorado?

Longmont has a growing market for solar installers, with around 15+ companies offering solar installation services in the area. These local installers vary in size and expertise, providing residents with multiple options to choose from. Homeowners are encouraged to compare quotes and check reviews to find a reputable installer that meets their specific needs.

What is the payback period for solar in Longmont?

The typical payback period for solar installations in Longmont ranges from 5 to 7 years. This period can vary based on factors such as system size, energy savings, local electricity rates, and available incentives. As energy prices continue to rise, many homeowners find that the investment in solar pays off quickly, leading to substantial long-term savings.

Does Longmont have any local solar incentives?

Yes, Longmont offers several local solar incentives to encourage renewable energy adoption. Notably, Longmont Power & Communications provides rebates for solar installations, which can significantly reduce costs. Additionally, homeowners should explore potential programs offered by the city and the state to take full advantage of available financial incentives for solar energy.

Is solar worth it in Longmont, Colorado?

Yes, solar is worth it in Longmont, Colorado, due to the city’s favorable climate, ample sunlight, and available incentives. With a solid return on investment, homeowners can significantly lower their energy bills and increase their property value. The combination of local and federal incentives makes solar installations more affordable, making it a smart choice for those looking to invest in renewable energy.

Reviewed by the Net-Zero USA editorial team
Last reviewed: March 3, 2026

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Longmont Quick Facts

  • 🏠 Federal ITC expired Dec 2025
  • 💡 Cost per watt: $2.86/W
  • 📈 Above-avg: $16,453
  • 📉 Below-avg: $12,161
  • 💰 Total incentives: $42,730

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