Solar Panels Cost 12k-22k in O'Fallon, MO | August, 2024

Solar Panels Cost $12k-$22k in O'Fallon, MO | August, 2024

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How much do solar panels cost in O'Fallon, MO in 2024?

For the month of August, 2024, the cost per watt for solar systems in O'Fallon, MO is $3.5/W.

Expect to pay $3,500, on average, for every 1000 watts (or 1 kW) of solar energy your system can generate. We are able to come to this conclusion by using this rate price cost per watt. In O'Fallon, the cost of a 5 kW solar system is typically $12,250, after the 30% federal tax credit. Please keep in mind that a more extensive system could be necessary to meet your energy requirements.

To the left, you can choose your county to view the average roof size and the maximum capacity of solar panels for houses in your area. Displayed below is an outline of the costs, payback period, and 20-year average savings for a 5 kW system installed in your county.

Average out-of-pocket cost for a 5 kW system The upfront amount spent to buy and install solar.
O'Fallon: $12,250US Average: $12,634
Average Payback Period The number of years until you break even on the solar investment.
O'Fallon: 8 yearsUS Average: 8 years
Average Net 20-year savings The total amount of money saved over 20 years minus the out-of-pocket cost.
O'Fallon: $12,073US Average: $15,248

Solar Potential in O'Fallon

Estimated system size and solar electricity production per median viable roof in
O'Fallon.

Roof size 894sq. ft.
Capacity 12.5kW DC
Electricity 15.7kkWh AC per yr.

Electricity Costs in O'Fallon, MO & What that Means for Your Solar Panel Pricing

O'Fallon residents generally consume 994 kWh of electricity each month, with bills around $123.22. These statistics also reflects the energy consumption patterns of smaller residences, such as apartments.

O'Fallon, MO's electricity rate is 12.39¢ per kWh in August 2024.

For the typical energy consumer in O'Fallon, a system size of 9 kW or more is needed to cover their full power consumption demands. Right now, a 9 kW solar panel installation will cost you approximately $31,500, but the federal tax credit reduces the price by 30%, making it $22,050.

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Average solar panel costs by system size in O'Fallon

On your left, you will see a detailed cost analysis for various solar panel system sizes set up in O'Fallon. When you opt for a bigger solar system, the cost is greater, but it also leads to more significant electricity savings and a larger income tax credit.

The calculator below and to the right offers a detailed summary of solar panel costs and benefits, based on an average electric bill of $123.22 in O'Fallon. Custom results can be achieved by changing the $123.22 to your usual bill amount.

System Size 5kW
Roof Size Min. space required
358 ft²
Electricity Value Annual Production $877 a year
Est. Price
$12,250
Savings from a 5kWthis system
  • Est. yearly production 7,304 kWh
  • Est. monthly savings $73
  • Full payback in 8 years
Environmental Impacts
  • Reduces CO2 emissions by 5.02 tons a year
  • Equivalent to planting 230 trees a year
  • Equivalent to driving 12,414 mi less a year
System Size 6kW
Roof Size Min. space required
429 ft²
Electricity Value Annual Production $1,052 a year
Est. Price
$14,700
Savings from a 6kWthis system
  • Est. yearly production 8,765 kWh
  • Est. monthly savings $88
  • Full payback in 10 years
Environmental Impacts
  • Reduces CO2 emissions by 6.02 tons a year
  • Equivalent to planting 276 trees a year
  • Equivalent to driving 14,897 mi less a year
System Size 7kW
Roof Size Min. space required
501 ft²
Electricity Value Annual Production $1,227 a year
Est. Price
$17,150
Savings from a 7kWthis system
  • Est. yearly production 10,226 kWh
  • Est. monthly savings $102
  • Full payback in 12 years
Environmental Impacts
  • Reduces CO2 emissions by 7.02 tons a year
  • Equivalent to planting 322 trees a year
  • Equivalent to driving 17,379 mi less a year
System Size 8kW
Roof Size Min. space required
572 ft²
Electricity Value Annual Production $1,402 a year
Est. Price
$19,600
Savings from a 8kWthis system
  • Est. yearly production 11,687 kWh
  • Est. monthly savings $117
  • Full payback in 13 years
Environmental Impacts
  • Reduces CO2 emissions by 8.02 tons a year
  • Equivalent to planting 369 trees a year
  • Equivalent to driving 19,862 mi less a year
System Size 9kW
Roof Size Min. space required
644 ft²
Electricity Value Annual Production $1,578 a year
Est. Price
$22,050
Savings from a 9kWthis system
  • Est. yearly production 13,148 kWh
  • Est. monthly savings $123
  • Full payback in 15 years
Environmental Impacts
  • Reduces CO2 emissions by 8.45 tons a year
  • Equivalent to planting 388 trees a year
  • Equivalent to driving 20,904 mi less a year

O'Fallon Solar Panel Installation Incentives & Rebates | 2024

If you run a small business or farm in a rural area, you could receive REAP Grant support that covers 80% to 100% of your solar or wind turbine installation costs. Believe you fit this category? Check your qualification with our REAP Grant eligibility tool.

Adding residential solar panels comes with a 30% federal tax credit, available to most homeowners, making it a good option for numerous areas across the country. Alongside federal efforts, state and local programs help to encourage the use of solar power.

Missouri features 8 solar rebate and incentive initiatives available from different utilities and government organizations.

Energy Standards for Public Buildings

Value:Varies

Missouri most recently updated its statewide green building law in 2015. Any new state facility must meet standards set by the latest copy of the International Energy Conservation Code (currently 2015). Existing buildings must reduce energy consumption by 2% per year for a total 20% reduction in 2025. New remodeling projects affecting at least half of the building's area or costing half of its assessed value should be subject to pre-planning impact studies. Designers should consider on-site renewable energy and water reclamation to provide a 25-year cost/benefit analysis. Additional information is available from the Missouri DNR website.

Empire District Electric - Solar PV Rebates

Value:Varies

Show Me PACE is a multi-jurisdiction property-assessed clean energy financing program in Missouri. Any county or city government may become a program signatory. The program serves business and multi-family residential property, farms, nonprofits, and public-sector facilities making energy or water efficiency improvements. A minimum principal of $50,000 is available at low market-rate interest. Repayment periods may vary, but cannot be longer than the useful life of the equipment that the loan funds. The Missouri Energy Initiative oversees the Show Me PACE lending market. Additional information is available from the program website.

Energy Loan Program

Value:Varies

Public/private school districts, local governments, and hospitals may be eligible for special financing on energy efficiency improvements through the Missouri Energy Loan Program (MELP). The revolving loan fund is managed by the state's Department of Economic Development. Available principal ranges from $10,000 to $1 million. Funding can be repaid over 10 years at 2.75% APR and with a 1% administrative fee. Monthly payments are typically based on estimated cost savings. Additional information is available from the DED Energy Division website.

Renewable Energy Standard

Value:Varies

Missouri's mandatory renewable portfolio standard was created in 2008 by the Proposition C ballot referendum. The standard sets minimum quotas for renewable energy investment. Current objectives (as of 2021) require the state's power industry to source 15% of retail energy from renewable sources by the end of the year. Any solar, wind, biomass, hydrogen fuel cell, or select solid waste reclamation system may qualify. However, "carve-out" measures require a specific portion of the annual quota be fulfilled using solar energy. Compliance is measured through both renewable energy credit (REC) and solar carve-out credit (SREC) systems. Each credit pegs a fixed amount of electricity to a variable dollar value. Credits are subject to market forces as utilities buy them through net metering and retire them after three years. Annual reports on standard objectives and progress are available through the Missouri Public Service Commission website.

Net Metering

Value:Varies

Missouri requires any private/municipal utility, electric retailer, or utility cooperative to offer net metering contracts to renewable energy customers. Any solar PV/heating, wind, hydroelectric, or hydrogen fuel cell system qualifies to receive tariff compensation. Once a customer and their utility agree to a contract, the utility will install a bidirectional meter on the customer's system at no cost. This meter measures net excess generation (NEG) sent back to the grid. The customer's electric bill will be credited at a fixed avoided-cost rate for NEG generated during each billing cycle. Should generation exceed consumption for any given month, credits may carry forward to subsequent cycles. Additional information is available from the Missouri Department of Economic Development website.

Missouri Clean Energy District

Value:Varies

The Missouri Clean Energy District is a statewide property-assessed clean energy (PACE) financing program. Counties and cities may join MCED at any time, allowing local businesses, farms, nonprofits, and public-sector building owners to receive specialized loans for energy efficiency improvements. (Due to regulatory concerns from the FHFA, residential buildings are ineligible for PACE loans at this time.) PACE funding effectively comes from the government, but it is administered by the MCED and a number of banking partners. Loans are at low interest and can be repaid over up to 20 years. Repayments take the form of a tax lien senior to the property's mortgage; should the owner sell or transfer their property, the new owner will be responsible for continuing repayments. Additional information is available from the MCED website and member localities.

Interconnection Guidelines

Value:Varies

Any private/public electrical utility or cooperative in Missouri must offer their renewable energy customers interconnection and net metering contract options. Unlike other states, renewable energy systems are not divided into regulatory tiers based on size and capability; however, systems over 100 kW in capacity are ineligible for net metering. All systems must meet standards set by IEEE/UL and have manual disconnect switches/other safety features installed. Additional information is available from individual utilities.

Show Me PACE

Value:Varies

Show Me PACE is a multi-jurisdiction property-assessed clean energy financing program in Missouri. Any county or city government may become a program signatory. The program serves business and multi-family residential property, farms, nonprofits, and public-sector facilities making energy or water efficiency improvements. A minimum principal of $50,000 is available at low market-rate interest. Repayment periods may vary, but cannot be longer than the useful life of the equipment that the loan funds. The Missouri Energy Initiative oversees the Show Me PACE lending market. Additional information is available from the program website.

Are solar panels worth it in Missouri?

If you're intending to stay in your home past the period required to pay back your solar investment, opting for solar panels is a wise decision in O'Fallon. A 5 kW system in O'Fallon, MO will enable you to save the average homeowner, on average, $17,322.8 over a 20 period and the average break even point is 8 years.

The cost of not having solar panels in O'Fallon, MO

In addition to forgoing the savings, the absence of solar panels or another backup energy source results in full dependence on your electric utility for your power needs. Recent news stories have demonstrated that complete dependence on your utility is not always ideal.

Lately, customers in O'Fallon have typically experienced 0.77 utility outages per year. The average duration of each outage is 97.72 minutes. During severe events like vandalism, overloaded power grids or landslides, these times can grow significantly longer.

Whether or not a backup battery is included, a solar panel system could ease the impact of future power outages you might experience.

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What impacts the cost of solar panels in O'Fallon, MO?

Your Energy Needs - The upfront cost for larger solar panel systems is larger, but the cost per watt decreases as the system size increases. Many people find it advantageous to set up a solar energy system that can fully cover their entire electric bill. This ensures optimal savings.

Make & Model - Similar to other items, solar panels come in a variety of makes and models. As your installer may prefer certain systems, it's essential to choose a reputable contractor. Higher quality makes and models often result in a more satisfactory long-term experience for buyers.

Solar Panel Type - For numerous good reasons, monocrystalline panels are now the standard in the industry. They are associated with a higher price, but they provide more energy. Most solar panel installers opt for this kind of material.

Your Property - Elements such as trees, sloping terrain, or other obstructions might complicate the installation process. Using satellite imagery, solar installers can now assess your home and include these considerations into the initial cost estimate.

Labor Rates - Different companies have varying pay scales for their employees, and these costs are ultimately passed on to consumers. Businesses that invest in higher wages often see higher reviews for their work and customer service.

Permitting & Interconnection - Local permitting and utility level interconnection fees change by area and will affect your final install price. Experienced local installers will incorporate these numbers into your first quotes to prevent any surprises.

See what solar panels cost in other MO cities

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Who are the best solar installers in O'Fallon?

Academy Energy Group

Newburgh, IN(812) 518-2150

Services

  • Reparation of solar arrays.
  • Installation of solar arrays.
  • Solar systems for selling electricity back to the grid.
  • Monitoring of independent energy generation.
  • Auditing of energy requirements for independent energy generation.

SunVest Solar

Pewaukee, WI(262) 547-1200

Services

  • Installation of solar arrays.
  • Expertise in consulting on advantageous financing for solar.

StraightUp Solar

St. Louis, MO(844) 494-7544

Services

  • Reparation of solar arrays.
  • Installation of batteries for energy storage.
  • Solar systems for selling electricity back to the grid.
  • Installation of solar arrays.
  • Expertise in consulting on advantageous financing for solar.

SunPro Solar

Mandeville, LA(866) 599-3643

Services

  • Monitoring of independent energy generation.
  • Expertise in consulting on advantageous financing for solar.
  • Consulting on all things solar related.
  • Installation of solar arrays.
  • Installation of batteries for energy storage.
  • Auditing of energy requirements for independent energy generation.
  • Solar systems for selling electricity back to the grid.

Power Home Solar

Mooresville, NC(704) 870-3670

Services

  • Expertise in consulting on advantageous financing for solar.
  • Reparation of solar arrays.
  • Installation of solar arrays.
  • Installation of batteries for energy storage.
  • Consulting on all things solar related.
  • Solar systems for selling electricity back to the grid.

Dividend Finance

San Francisco, CA(415) 805-7000

Services

  • Expertise in consulting on advantageous financing for solar.
  • Installation of batteries for energy storage.
  • Installation of solar arrays.

Palmetto Solar

Charleston, SC(855) 339-1831

Services

  • Solar systems for selling electricity back to the grid.
  • Installation of solar arrays.
  • Reparation of solar arrays.
  • Installation of batteries for energy storage.
  • Expertise in consulting on advantageous financing for solar.

SunPower Corporation

San Jose, CA(800) 786-7693

Services

  • Installation of batteries for energy storage.
  • Reparation of solar arrays.
  • Installation of solar arrays.
  • Consulting on all things solar related.
  • Solar systems for selling electricity back to the grid.
  • Expertise in consulting on advantageous financing for solar.
  • Monitoring of independent energy generation.

AmpXR

Gladstone, MO(913) 387-9474

Services

  • Solar systems for selling electricity back to the grid.
  • Installation of solar arrays.

Harvest Solar

Jackson, MI(888) 907-6527

Services

  • Installation of solar arrays.
  • Expertise in consulting on advantageous financing for solar.
  • Consulting on all things solar related.

Air & Water Solutions

Columbia, MO(573) 875-1354

Services

  • Auditing of energy requirements for independent energy generation.
  • Installation of solar arrays.
  • Installation of batteries for energy storage.

Sunnova Energy

Houston, TX(866) 786-6682

Services

  • Expertise in consulting on advantageous financing for solar.
  • Installation of solar arrays.
  • Installation of batteries for energy storage.

GRNE Solar

Palatine, IL(312) 859-3417

Services

  • Installation of batteries for energy storage.
  • Installation of solar arrays.
  • Consulting on all things solar related.
  • Expertise in consulting on advantageous financing for solar.

Sigora Solar

Charlottesville, VA(434) 465-6192

Services

  • Installation of solar arrays.
  • Expertise in consulting on advantageous financing for solar.
  • Installation of batteries for energy storage.
  • Solar systems for selling electricity back to the grid.

Entegrity

Little Rock, AR(800) 700-1414

Services

  • Expertise in consulting on advantageous financing for solar.
  • Installation of solar arrays.

Ideal Energy

Fairfield, IA(800) 634-4454

Services

  • Installation of batteries for energy storage.
  • Reparation of solar arrays.
  • Installation of solar arrays.
  • Expertise in consulting on advantageous financing for solar.

City Electric Supply

Dallas, TX(866) 634-9853

Services

  • Consulting on all things solar related.
  • Expertise in consulting on advantageous financing for solar.
  • Installation of solar arrays.

Solar Design Studio

Platte City, MO(816) 607-1349

Services

  • Consulting on all things solar related.
  • Installation of solar arrays.
  • Installation of batteries for energy storage.
  • Expertise in consulting on advantageous financing for solar.

LightEdison

Denver, CO(888) 966-6377

Services

  • Installation of solar arrays.
  • Reparation of solar arrays.
  • Installation of batteries for energy storage.
  • Expertise in consulting on advantageous financing for solar.

PowerHome Solar

Mooresville, NC(704) 870-3670

Services

  • Installation of solar arrays.
  • Expertise in consulting on advantageous financing for solar.
  • Solar systems for selling electricity back to the grid.
  • Installation of batteries for energy storage.

Empire Solar Group

Salt Lake City, UT(800) 467-4562

Services

  • Installation of batteries for energy storage.
  • Installation of solar arrays.
  • Solar systems for selling electricity back to the grid.

O'Fallon, MO Solar Panel Cost FAQs

  • As of August, 2024, the average cost for solar panels in O'Fallon, MO is $3.5/W. In O'Fallon, MO, installing a 5 kW solar panel system will set you back approximately $12,250 after federal tax incentives.

  • Utilities and government agencies in Missouri are currently offering 8 different rebates and incentives. Furthermore, almost all individuals are entitled to the 30% federal income tax credit.

  • Opting to pay in cash provides the highest savings, but there are now various financing options for solar panels that are financially beneficial. Many installers will detail information about financing options in their initial quotes.

  • Yes, in O'Fallon, MO, the average payback period for 5 kW solar panels is 8 years, resulting in average electricity savings of $17,322.8 over 20 years.
Matt Hope
Last Reviewed By: Matt Hope
Published: 2024-08-15