Solar Panels Cost 7.0k-16k in Newberg, OR | October, 2024

Solar Panels Cost $7.0k-$16k in Newberg, OR | October, 2024

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How much do solar panels cost in Newberg, OR in 2024?

Going solar in October, 2024 in Newberg, OR costs about $3.38/W.

According to the price, solar panel installations will cost you approximately $3,380 per 1000 watts (1 kW) of production capacity. When you subtract the 30% federal tax credit, you will spend around $11,830, in Newberg, for a 5 kW solar system. Please consider, a 5kW system might not be sufficient to satisfy your energy demands.

On the left, choose your county to see the typical roof size and the maximum generation capacity for solar panels on homes in your area. Below, you'll find a full outline of the price, payback period, and 20-year average savings for a 5 kW system in your county.

Average out-of-pocket cost for a 5 kW system The upfront amount spent to buy and install solar.
Newberg: $11,830US Average: $12,562
Average Payback Period The number of years until you break even on the solar investment.
Newberg: 8 yearsUS Average: 7 years
Average Net 20-year savings The total amount of money saved over 20 years minus the out-of-pocket cost.
Newberg: $14,554US Average: $15,784

Solar Potential in Newberg

Estimated system size and solar electricity production per median viable roof in
Newberg.

Roof size 912sq. ft.
Capacity 12.75kW DC
Electricity 14kkWh AC per yr.

Electricity Costs in Newberg, OR & What that Means for Your Solar Panel Pricing

For Newberg energy consumers, the typical electric bill is $131.06 per month, with a usage of 785 kWh. Small residences, including lofts or apartments, are also encompassed in the statistics noted in the prior sentence.

The rate of electricity in Newberg, OR, averaging, is 16.69¢ per kWh in October 2024.

If you’re a typical energy user in Newberg you must have a 7 kW or more sized system to meet all of your power needs. At this time, a 7 kW solar system will cost you approximately $23,660, but the federal tax credit reduces the price by 30%, making it $16,562.

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Average solar panel costs by system size in Newberg

To the left and below, you can find a detailed cost breakdown for different solar panel system sizes installed in Newberg. As expected, with a more extensive solar system, you'll see a greater initial expense, but the benefits are higher electricity savings and more substantial income tax credits.

The solar panel calculator, located to the right and below, gives a detailed cost and benefit analysis based on a typical $131.06 electric bill for Newberg. Change the $131.06 to your average bill payment for custom results.

System Size 3kW
Roof Size Min. space required
215 ft²
Electricity Value Annual Production $799 a year
Est. Price
$7,098
Savings from a 3kWthis system
  • Est. yearly production 4,701 kWh
  • Est. monthly savings $67
  • Full payback in 5 years
Environmental Impacts
  • Reduces CO2 emissions by 1.09 tons a year
  • Equivalent to planting 50 trees a year
  • Equivalent to driving 2,700 mi less a year
System Size 4kW
Roof Size Min. space required
286 ft²
Electricity Value Annual Production $1,066 a year
Est. Price
$9,464
Savings from a 4kWthis system
  • Est. yearly production 6,268 kWh
  • Est. monthly savings $89
  • Full payback in 6 years
Environmental Impacts
  • Reduces CO2 emissions by 1.45 tons a year
  • Equivalent to planting 67 trees a year
  • Equivalent to driving 3,601 mi less a year
System Size 5kW
Roof Size Min. space required
358 ft²
Electricity Value Annual Production $1,332 a year
Est. Price
$11,830
Savings from a 5kWthis system
  • Est. yearly production 7,836 kWh
  • Est. monthly savings $111
  • Full payback in 8 years
Environmental Impacts
  • Reduces CO2 emissions by 1.82 tons a year
  • Equivalent to planting 84 trees a year
  • Equivalent to driving 4,501 mi less a year
System Size 6kW
Roof Size Min. space required
429 ft²
Electricity Value Annual Production $1,598 a year
Est. Price
$14,196
Savings from a 6kWthis system
  • Est. yearly production 9,403 kWh
  • Est. monthly savings $131
  • Full payback in 9 years
Environmental Impacts
  • Reduces CO2 emissions by 2.15 tons a year
  • Equivalent to planting 99 trees a year
  • Equivalent to driving 5,312 mi less a year
System Size 7kW
Roof Size Min. space required
501 ft²
Electricity Value Annual Production $1,865 a year
Est. Price
$16,562
Savings from a 7kWthis system
  • Est. yearly production 10,970 kWh
  • Est. monthly savings $131
  • Full payback in 11 years
Environmental Impacts
  • Reduces CO2 emissions by 2.15 tons a year
  • Equivalent to planting 99 trees a year
  • Equivalent to driving 5,312 mi less a year

Newberg Solar Panel Installation Incentives & Rebates | 2024

Eligible rural small businesses and agricultural operations might have their solar energy or wind turbine installation costs covered by the REAP Grant, ranging from 80% to 100%. Believe you might be eligible? Use our REAP Grant eligibility tool to check your eligibility.

With the accessibility of a 30% federal income tax credit, solar energy becomes a viable solution for most homeowners, notably in numerous parts of the country. There are also a range of state and local efforts aimed at boosting solar energy use.

Oregon has 30 solar rebate and incentive initiatives available from multiple utilities and government agencies.

Solar incentives in OR

Columbia River PUD - Solar PV Net Metering Rebate

Value:Up to $1,000

The Blue Sky program is Pacific Power's adaptation of Oregon's mandatory green energy option. Customers may choose to join the Blue Sky rate schedule to receive energy from the renewable power grid. In exchange, they will be assessed surcharges to support new renewable energy investment, and Pacific Power will receive any renewable energy credits they generate. Annual reports and program information are available through the Pacific Power website.

Solar Electric Incentive Program

Value:Up to $2,400

The Energy Trust of Oregon operates a direct incentive program for new residential, commercial, and agricultural solar PV systems. Pacific Power and Portland General Electric customers are eligible for rebates. A rebate's amount will vary depending on the size and performance of solar collectors, the property's zone type, and the involved utility. Preapproval is required from both the Energy Trust and the applicant's utility. Customers are required to use a participating solar contractor for the design and installation of their system. The estimated rebate will be included as part of the system's quote and will not be paid to the customer. Additional information is available from the Energy Trust's website.

Energy Conservation Tax Credits - Small Premium Projects (Personal)

Value:Up to $7,000

On occasion, the Oregon Department of Energy will announce opportunities for residents to claim tax credits on small energy efficiency projects. Previous announcements have covered efficiency in agriculture and manufacturing, solar thermal systems, and CHP systems. Tax credits from an Opportunity Announcement max out at 35% of a project's equipment/installation costs. Credits may be claimed over multiple years depending on individual circumstances. The application process involves audits and proposals outlining estimated energy consumption decline. Additional information is available from the department website.

EWEB - Solar Electric Program (Rebate)

Value:Up to $2,000

Residential, public-sector, and nonprofit solar customers of the Eugene Electric and Water Board may qualify to enter power purchasing agreements (PPAs). There is no maximum capacity limit on eligible PV systems; however, systems should already meet requirements for net metering, including all IEEE/UL specifications, permits, and renewable ratio. Available compensation is performance-based and will vary from year to year. As of 2021, rates started at 40 cents per watt up to $2,000. Customers can choose to receive compensation in the form of a rebate rather than a bill credit, in which case they keep the RECs they generate. Additional information is available from the EWEB website.

Lane Electric Cooperative - Residential and Commercial Weatherization & Energy Efficiency Program

Value:Up to $1,000

Home and business customer-members of the Lane Electric Cooperative may be eligible for grants on energy-efficient insulation and weatherization projects. Only projects approved by a Lane auditor will be approved for funding. Additional grants may be available for applicants in low-income brackets. Participating contractors may assist customer-members through the auditing and application process. Grants will be awarded to the contractor and will appear as a discount on the final project invoice. Additional information is available through the LEC website.

Lane Electric Cooperative - Residential Energy Efficiency Loan Programs

Value:Up to $9,000

Residential customer-members of the Lane Electric Cooperative may be eligible for interest-free financing on new thermal energy efficiency projects. Loans may fund new efficient heat pumps, related ductwork, insulation/weatherization, and new windows/doors. Only projects recommended by a Lane representative and undertaken by a participating contractor will be eligible. The maximum available principal per loan is $9,000 and will be serviced by either of two participating credit unions. LEC will cover all interest payments on behalf of the borrower. Additional information is available from the LEC website.

Energy Conservation Tax Credits - Small Premium Projects (Corporate)

Value:Up to $7,000

On occasion, the Oregon Department of Energy will announce opportunities for businesses to claim tax credits on small energy efficiency projects. Previous announcements have covered efficiency in agriculture and manufacturing, solar thermal systems, and CHP systems. Tax credits from an Opportunity Announcement max out at 35% of a project's equipment/installation costs. Credits may be claimed over multiple years depending on individual circumstances. The application process involves audits and proposals outlining estimated energy consumption decline. Additional information is available from the department website.

Large Electric Consumer Public Purpose Program (LECPPP)

Value:Varies

Generally, Oregon's electric utilities are required to collect a 3% surcharge on customer bills to support the Energy Trust of Oregon. Larger consumers of energy may, in lieu of paying a surcharge, undertake energy efficiency improvements and renewable energy investments of their own. Should improvements be implemented successfully, surcharge waivers of 54% may be applicable. Qualifying customers should have consumed 1 megawatt of electricity per year, as measured by a single or contiguous meter, prior to application. They will also be subject to annual site audits. Additional information is available from the Oregon Department of Energy website.

New Homes Incentive Program

Value:Varies

Homebuilders in Oregon may be eligible for incentives from the state's Energy Trust if they meet energy-efficient building standards in excess of state codes. Awards will be made for efficient lighting, insulation, windows/doors, appliances, and solar PV/thermal energy. Each project or component factors into the property's Energy Performance Score displayed to homebuyers. Additional information is available from the Energy Trust website.

Renewable Energy Contractor Licensing

Value:Varies

In Oregon, anyone who installs or repairs solar energy devices should be licensed by the state's Bureau of Labor. Specialized licenses are available for solar photovoltaic work and solar thermal work. Limited licenses are also available allowing the holder to work with systems rated under 25 kW. Each license is subject to experience/training hour requirements, though there are pathways to obtain journeyman and contractor certifications from an apprenticeship. Solar contractors may be required to subcontract certain tasks to licensed plumbers and electricians.

Building Energy Code

Value:Varies

Oregon energy efficiency codes are regularly updated. Previous quantitative goals set in 2006 required average home or business energy consumption for new buildings to drop by 15%. Regulations for single-family homes and duplexes are listed in the Residential Specialty Code. Regulations for all other buildings are found in the Structural Specialty Code. Local governments can adopt their own regulations exceeding those in the RSC or SSC, but they cannot nullify state codes. Additional information is available from the federal Energy Codes website.

Green Energy Technology in Public Buildings

Value:Varies

In Oregon, state facilities may adopt solar energy devices for self-consumption. New public buildings should earmark 1.5% of project costs toward energy conservation. To qualify, a system must reduce estimated energy consumption from a conventional baseline and fulfill at least three-quarters of the building's energy needs. Additional information is available from the Oregon Department of Energy.

Central Lincoln People's Utility District - Residential Energy Efficiency Rebate Programs

Value:Varies

Residential customers of the Central Lincoln People's Municipal Utility District (CLPUD) may be eligible for specialized rebates on an assortment of energy efficiency projects and equipment. Available rebate offers will vary from time to time. Currently, rebates may be awarded for new windows, insulation/weatherization, water heaters, heat pumps, lighting, and ENERGY STAR certified appliances. Additional information and application forms are available from the CLPUD website.

Energy Conservation Tax Credits - Competitively-Selected Projects (Personal)

Value:Varies

On occasion, the Oregon Department of Energy will announce opportunities for residents to claim tax credits on midsize/large bid-winning energy efficiency projects. Previous announcements have covered efficiency in agriculture and manufacturing, solar thermal systems, and CHP systems. Tax credits from an Opportunity Announcement max out at 35% of a project's equipment/installation costs. Credits may be claimed over multiple years depending on individual circumstances. The application process involves audits and proposals outlining estimated energy consumption decline. Additional information is available from the department website.

Renewable Portfolio Standard

Value:Varies

Oregon first established a renewable portfolio standard in 2007. The standard governs and tracks renewable energy investment throughout the state, with the long-term goal of generating 50% of all retail electricity with renewable technology by 2040. All electric utilities are required to participate regardless of governance. Uniquely, standard goals vary depending on the size and type of utility. Large utilities, such as Portland General Electric, Pacific Power, along with large cooperatives, must source 27% of their electricity renewably by 2025. Smaller utilities and cooperatives are subject to smaller goals of 5 - 10% renewable energy by 2025. Carve-out provisions require a certain share of the annual RPS quota to be invested in microgrids, community generation facilities, and solar facilities. Compliance with the standard is enforced through a renewable energy credit (REC) system pegging a fixed amount of electricity to a fluctuating dollar value. All operational renewable energy systems generate RECs, but utilities may also purchase credits from private customers. Credits expire after five years and must be replaced with new investments.

EWEB - Net Metering

Value:Varies

Residential and commercial renewable energy customers of the Eugene Water and Electric Board may take advantage of net metering if their system is rated for below 25 kW. Qualifying technologies include wind, solar, hydroelectric, fuel cells, solid waste/landfill gas, and agricultural biomass. EWEB will install a bidirectional meter on each renewable energy system to track net excess generation (NEG) sent back to the grid each month. Customers will receive a bill credit of 3.6 cents/kWh of NEG. Additional information is available from the EWEB website.

Local Option - Rural Renewable Energy Development Zones

Value:Varies

In Oregon, Rural Renewable Energy Development Zones (RREDZs) are formed by local and contiguous county governments. Residential and commercial solar, wind, biomass, geothermal, or other renewable energy systems in an RREDZ may earn local property tax exemptions for a three to five-year term. Currently, ten counties and one city have formed RREDZs among themselves. Localities may set their own terms, conditions, and maximum exemptions. Interested property owners should consult with their local tax assessor.

PGE Renewable Development Fund

Value:Varies

The Blue Sky program is Pacific Power's adaptation of Oregon's mandatory green energy option. Customers may choose to join the Blue Sky rate schedule to receive energy from the renewable power grid. In exchange, they will be assessed surcharges to support new renewable energy investment, and Pacific Power will receive any renewable energy credits they generate. Annual reports and program information are available through the Pacific Power website.

Solar + Storage Rebate Program

Value:Varies

The Blue Sky program is Pacific Power's adaptation of Oregon's mandatory green energy option. Customers may choose to join the Blue Sky rate schedule to receive energy from the renewable power grid. In exchange, they will be assessed surcharges to support new renewable energy investment, and Pacific Power will receive any renewable energy credits they generate. Annual reports and program information are available through the Pacific Power website.

Pacific Power - Blue Sky Community Project Funds

Value:Varies

The Blue Sky program is Pacific Power's adaptation of Oregon's mandatory green energy option. Customers may choose to join the Blue Sky rate schedule to receive energy from the renewable power grid. In exchange, they will be assessed surcharges to support new renewable energy investment, and Pacific Power will receive any renewable energy credits they generate. Annual reports and program information are available through the Pacific Power website.

State Energy Loan Program

Value:Varies

SELP is an Oregon-based solar energy financing program created by a ballot referendum. Loans take the form of small bonds at zero interest. Any Oregon resident, business owner, school district, local government, or state agency may receive bonds of $20,000 - $20 million. Up to 2% in fees may apply during the repayment process. The maximum repayment term should not outlast the useful life of the solar device being funded. Additional information is available from the Oregon Department of Energy website.

Lane Electric Cooperative - Residential Efficiency Rebate Program

Value:Varies

Residential customer-members of the Lane Electric Cooperative may be eligible for rebate incentives on a variety of energy-efficient thermal solutions. Available rebate offers will vary from time to time. Currently, the cooperative is incentivizing new air and geothermal heat pumps and related ductwork. Rebates may also be available on brand new homes which receive ENERGY STAR certification. Customer-members should submit rebate paperwork 30 days after installation at the latest. Inspections by a utility representative may apply. Additional information is available from the Lane Electric Cooperative website.

Central Lincoln People's Utility District - Renewable Energy Incentive Program

Value:Varies

Residential and commercial customers of the Central Lincoln People's Utility District may be eligible for rebates on new renewable energy systems. Any wind, hydroelectric, solar PV, or solar water heater will qualify so long as it generates at least 75% of the customer's electrical demand. The rebate's amount will vary depending on the capacity and expected performance of the system. Additional bill credits from net metering programs will apply. Further information is available from the CLPUD website.

Solar Within Reach

Value:Varies

The Blue Sky program is Pacific Power's adaptation of Oregon's mandatory green energy option. Customers may choose to join the Blue Sky rate schedule to receive energy from the renewable power grid. In exchange, they will be assessed surcharges to support new renewable energy investment, and Pacific Power will receive any renewable energy credits they generate. Annual reports and program information are available through the Pacific Power website.

Mandatory Utility Green Power Option

Value:Varies

Oregon state law requires all public/private electrical utilities and cooperatives to provide their customers with at least one "green power" rate option. Qualifying renewable generation technologies toward the law include solar PV/thermal, wind, hydroelectric, geothermal, and some biomass. Utilities must be transparent about their power sources.

Energy Trust of Oregon

Value:Varies

A 3% surcharge on customer energy bills in Oregon supports the state's Energy Trust (ETO). ETO is an independent 501 organization partnered with the Oregon government. Funds support a variety of energy efficiency programs in the state, including educational campaigns, school building efficiency, conservation incentives, and energy access/assistance for low-income and disadvantaged communities. Organizations may submit proposals directly to ETO for funding consideration. Annual reports on funding goals, surcharge revenue, and expenditures are available from the fund website.

SB 1149 Schools Program

Value:Varies

Energy efficiency/renewable energy programs and improvements in public schools within the Pacific Power and Portland General Electric service areas are funded by the Energy Trust of Oregon. Funding is derived from a standard 3% surcharge on consumer energy bills. 10% of the total Energy Trust is earmarked for school-related initiatives. Qualifying projects include educational initiatives and new windows, HVAC, water heating, lighting, and insulation/weatherization. Only projects suggested by a utility representative may be eligible for funding or incentives. Additional information is available from the Oregon Department of Energy.

Energy Conservation Tax Credits - Competitively-Selected Projects (Corporate)

Value:Varies

On occasion, the Oregon Department of Energy will announce opportunities for businesses to claim tax credits on large bid-winning energy efficiency projects. Previous announcements have covered efficiency in agriculture and manufacturing, solar thermal systems, and CHP systems. Tax credits from an Opportunity Announcement max out at 35% of a project's equipment/installation costs. Credits may be claimed over multiple years depending on individual circumstances. The application process involves audits and proposals outlining estimated energy consumption decline. Additional information is available from the department website.

Renewable Energy Development Grant Program

Value:Varies

The Oregon Department of Energy may award grant funding to renewable energy projects involving solar, wind, hydroelectric, geothermal, and some biomass technologies. The grant program is the successor to a corporate tax credit and remains closely tied to taxation through its funding sources. Qualifying projects for a grant should be rated for below 35 MW. Applicants will be subject to fees of $500 plus 1.25% for processing and permit reviews. Approval is based on a quantitative scoring system. Additional information is available through the ODE website.

Renewable Energy Systems Exemption

Value:Varies

In Oregon, property tax exemptions apply statewide to new renewable energy systems. The exemption applies to any wind, solar, geothermal, and some biomass/fuel cell device used to generate power or provide heating/cooling. Systems must be interconnected to the grid and under a net metering contract to procure renewable energy credits. To claim the exemption, property owners should consult with their local assessor. Assessors may not consider the value of the system for any purpose relative to the overall property value.

Are solar panels worth it in Oregon?

Intending to stay in your house beyond the solar payback period? Solar panels are a wise investment in Newberg. Installing a 5 kW solar system in Newberg, OR will, on average, save you $19,624.4 over 20 years, and you can expect to break even in about 8 years.

The cost of not having solar panels in Newberg, OR

The lack of solar panels or an alternative energy backup means you'll forgo the earlier mentioned savings and be completely reliant on your electric utility for power. Recent media examples have shown that full reliance on your utility company isn't always ideal.

Customers in Newberg have experienced an average of 0.64 utility outages per year in recent times. Each outage lasts an average of 117 minutes. In the case of major events such as heavy rain and flooding, vandalism, or grid management errors, this period can increase substantially.

With or without a backup battery, a solar panel system could relieve the stress of future power disruptions you might encounter.

Power Outages

Currently, 0 customers are being tracked in Yamhill County.

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Customers Out:

0

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What impacts the cost of solar panels in Newberg, OR?

Your Energy Needs - The cost per watt is decreased with larger solar panel systems, even though the initial cost is greater. Setting up a solar panel system that can cover the electric bill is advantageous to consumers because of the money saved.

Make & Model - Similar to many other products, there are different makes and models of solar panels and mounting equipment on the market. Your contractor’s potential system preferences make it more important to select a reputable installer. Higher quality makes and models often provide a more positive long-term experience for buyers.

Solar Panel Type - Monocrystalline panels are generally accepted as the standard in the industry, and deservedly so. Even though they are more expensive, they generate more energy. The majority of installers work with panels constructed from this material.

Your Property - No two homes or properties are the same. Elements such as trees, uneven ground, or additional obstacles might complicate the installation process. These days, the majority of solar installers can assess your home with satellite images and factor in these considerations in the preliminary cost estimate.

Labor Rates - Various wages are offered to employees by various companies, and these expenses are transferred to the consumers. Higher wages frequently lead to companies getting better reviews for their work and customer service.

Permitting & Interconnection - Local permitting and utility interconnection fees, which differ by region, will influence your final installation cost. Experienced local installers will incorporate these numbers into your first quotes to avoid any surprises.

See what solar panels cost in other OR cities

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Who are the best solar installers in Newberg?

Freedom Forever

Temecula, CA(800) 685-1850

Services

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

A&R Solar

Seattle, WA(206) 707-9937

Services

  • Installation of batteries for energy storage.
  • Installation of solar arrays.

Solgen Power

Pasco, WA(855) 220-0778

Services

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

Elemental Energy

Portland, OR(503) 967-5786

Services

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

IonSOLAR

Provo, UT(888) 781-7074

Services

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

Sunlight Solar Energy

Bend, OR(541) 322-1910

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

Dividend Finance

San Francisco, CA(415) 805-7000

Services

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

SunPower Corporation

San Jose, CA(800) 786-7693

Services

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

Energy Design

Eugene, OR(541) 485-8122

Services

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

Entegrity

Little Rock, AR(800) 700-1414

Services

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

Badass Energy

Claremont, CA(909) 320-9860

Services

  • Consulting on all things solar related.
  • Installation of batteries for energy storage.
  • Installation of solar arrays.

Newberg, OR Solar Panel Cost FAQs

  • As of October, 2024, the average per-watt cost for solar panels in Newberg, OR is $3.38/W. Post federal tax credit, a 5 kW solar panel system installation in Newberg, OR will roughly cost $11,830.
  • Homeowners in Oregon can take advantage of 30 different rebates and incentives from a variety of utility companies and government agencies. Additionally, almost everyone is entitled to the 30% federal income tax credit.
  • Although cash payments yield the greatest savings, numerous financing options for solar panels now exist that are also cost-effective. Many installers will detail information about their financing partners in the initial quotes they provide.
  • Yes, in Newberg, OR, 5 kW solar panel systems usually pay off in 8 years, providing an average electricity cost savings of $19,624.4 over a 20-year period.
Alex Zdanov
Last Reviewed By: Alex Zdanov
Published: 2024-10-01