Is Solar a Good Investment?

For U.S. homeowners in states with electricity rates above 15¢/kWh and reasonable sun exposure, solar panels can still be a solid financial investment in 2026 — though the math is less favorable than it was in 2025, now that the federal tax credit has expired. A typical system delivers an effective annual return in the mid-single-digits to low double-digits on net cost, still competitive with many fixed-income investments, with the added advantage of being a predictable return tied to your electricity bill rather than market volatility.

The key variable is payback period. In high-sun, high-rate states (California, Hawaii, Massachusetts, New York), payback of 7–10 years is now common without the federal credit. In lower-rate, lower-sun regions (Pacific Northwest, rural Midwest), 13–16 years is more typical. Given that quality solar panels come with 25-year performance warranties and often last 30+ years, even a longer payback still leaves a meaningful period of pure profit.

The Federal Tax Credit Has Expired

The Residential Clean Energy Credit used to reduce your federal tax bill by 30% of your total installed system cost — panels, inverter, mounting hardware, and labor. It was a tax credit, not a deduction, meaning it directly reduced what you owed the IRS dollar for dollar. On a $20,000 system, that used to be a $6,000 credit, bringing net cost to $14,000. The One Big Beautiful Bill Act terminated this credit for any system placed in service after December 31, 2025 — for 2026 installations, there is no federal credit at all. Only systems installed and operational by the end of 2025 could still claim it.

Net Metering: The Fine Print That Changes the Math

Net metering is the policy that determines how your utility credits you for excess solar energy you send to the grid. Under full retail net metering, every kWh you export earns a credit at the same rate you pay for grid electricity — typically 13–25¢/kWh depending on your state. This is the most favorable arrangement and still exists in many states including New York, New Jersey, Texas, and Massachusetts.

Some states have shifted to net billing or avoided cost net metering, where exported solar is credited at the wholesale rate — typically 3–8¢/kWh — rather than retail. California's NEM 3.0 program, implemented in 2023, is the most prominent example. Under these programs, the economics of oversizing a system to export significant power are weak. If your utility uses below-retail export rates, size your system to closely match your consumption and avoid consistent excess export.

Always confirm your utility's exact net metering rate structure before finalizing a system design. Our net metering calculator shows what your exports are worth under each policy type, and the net metering vs net billing guide explains how to verify which one applies to you.

Factors That Affect Solar ROI

  • Electricity rate and rate trajectory: Higher current rates and faster rate growth both improve ROI. Rates have grown 3–5% annually in many U.S. markets.
  • Cash vs. loan: Cash purchase delivers the best ROI. Solar loans add interest cost but still typically deliver positive returns. Leases and PPAs generally deliver the least financial value to the homeowner.
  • System quality: Better panels degrade more slowly. Tier 1 panels (Jinko, LONGi, REC, Panasonic) typically degrade 0.3–0.5%/yr; cheaper panels 0.7–1.0%/yr. Over 25 years, this compounds to a meaningful difference in total production.
  • State and utility incentives: With the federal credit gone, state rebates and incentives now matter more than ever — some utilities offer additional cash-back programs, especially in states with renewable portfolio standards. Check dsireusa.org for what's available in your state.

Cash vs. Loan vs. Lease: Which Is Best?

Cash purchase still delivers the best long-term ROI — you capture 100% of the savings with no interest expense — but without the expired federal credit, your net cost on a $20,000 system is the full $20,000 (not $14,000). If annual savings are $1,400, payback is now roughly 14 years instead of 10. A solar loan typically runs 5–7% interest over 10–20 years, which reduces but doesn't eliminate profitability over the long run. Solar leases and PPAs (Power Purchase Agreements) let you avoid the upfront cost and, since the buyer's federal credit is gone, the relative gap versus buying has narrowed somewhat — some lease/PPA providers can still access a separate commercial tax credit as system owners. Compare actual quotes for your situation rather than assuming one option automatically wins.

When Solar Doesn't Make Financial Sense

Solar isn't always the right financial decision. It's less attractive when: your electricity rate is below 10¢/kWh (rural electric cooperatives, some Southeastern utilities), your roof needs replacement in the next 5 years, you plan to move within 3–5 years and aren't confident the system value will transfer fully, your roof has significant shading from trees or nearby buildings, or your roof orientation is primarily north-facing. In these situations, energy efficiency upgrades (insulation, heat pump water heater, smart thermostat) typically offer better ROI per dollar spent. Use our Green Home Upgrade ROI Calculator to compare options side by side.

Getting Accurate Quotes

Solar quotes vary significantly by installer. Getting 3+ quotes is standard advice, but more important is understanding what you're comparing. Key variables: panel brand and efficiency rating, inverter type (string vs. microinverters — microinverters are better for shading), warranty terms (both product and workmanship), financing terms if applicable, and whether the quote includes a production guarantee. Larger national installers like Sunrun and SunPower typically charge more than regional contractors but offer stronger financial backing. Get quotes from at least one local installer with strong reviews — they often undercut national installers by 10–20% for comparable equipment.

Home Resale Value

Multiple studies — including research by Lawrence Berkeley National Laboratory and Zillow — have found that owned solar systems increase home resale value. The premium averages roughly $4 per watt of installed capacity, meaning a 6kW owned system may add approximately $24,000 to a home's appraised value. This premium is strongest in states with high electricity rates and established solar markets. Note that this value premium applies only to owned systems, not leased systems or PPAs, which can actually complicate a home sale.