Is Solar Worth It? An Honest Breakdown
· updated
Solar is a good financial decision for many US homeowners and a poor one for others, and the honest answer to “is it worth it?” is “it depends on four things.” One of those four changed in 2026: the 30% federal tax credit no longer applies to a system you buy and own (see what happened to the credit). Everything below reflects that.
1. Your electricity rate — the biggest factor
Solar replaces grid electricity, so the value of each kilowatt-hour it produces is whatever you currently pay for one. The spread across the US is enormous:
| Region (typical residential rate) | Effect on payback |
|---|---|
| Hawaii, parts of California, the Northeast ($0.28–0.45/kWh) | Solar pays back fast even without the federal credit |
| National average (~$0.17/kWh) | Middle ground — depends on the other three factors |
| Pacific Northwest, parts of the South ($0.10–0.13/kWh) | The same system takes far longer; often marginal |
Rates also tend to rise over time, which improves lifetime savings — a system sized to a $0.15/kWh rate looks better if that rate is $0.22 in ten years.
2. Your sun and your roof
Peak sun hours range from about 3.5/day in the cloudy Northwest to 6.5/day in the desert Southwest. On top of that, orientation and shading scale production:
- South-facing, no shade → the modelled amount.
- East or west → roughly 10–20% less.
- North → substantially less; often not worth it.
- A tree, chimney, or neighbouring roof casting a shadow across the middle of the day can cut output badly, and partial shading hurts more than its area suggests on a string inverter.
Roof condition matters too: if the roof is within ~5–7 years of replacement, factor in $3,000–5,000 to remove and reinstall the array when it is redone.
3. Installed price
US residential solar runs roughly $2.50–$3.50 per watt installed before incentives, varying by state, installer, and equipment tier. Get three quotes — the gap between the cheapest and most expensive bid for an equivalent system is routinely 30% or more, driven almost entirely by sales and marketing overhead, not hardware. See how solar panels are priced.
4. Incentives and net metering
With no federal §25D credit for a system you pay for in 2026 or later, the incentive picture is now:
- State tax credits and rebates — vary widely; some states offer nothing, others offer thousands. Check your state energy office. These now do most of the work the federal credit used to do.
- Net-metering rules — arguably the most important policy factor. Full retail net metering (you are credited the retail rate for exported power) makes solar much more attractive than a low “avoided-cost” export rate or a time-of-use scheme that credits midday exports cheaply and charges evening imports dearly. See net metering explained.
- A lease or PPA is the one route where federal credit value can still reach a homeowner indirectly (the installer claims the commercial §48E credit) — at the cost of not owning the system and keeping a smaller share of the savings.
Run a rough payback in your head
Before any sales call, you can get a ballpark:
- Annual electricity spend = your average monthly bill × 12. Say $180 × 12 = $2,160.
- System cost ≈ that annual spend × 8 to 10 for a system sized to your usage (a rough rule that bakes in typical $/W and production). Say ~$19,000.
- Subtract state/utility incentives — look them up. Say a $2,000 rebate → $17,000 net.
- Annual savings ≈ 70–90% of your electricity spend if net metering is decent (solar rarely offsets 100% — you still pay connection charges and buy some grid power). Say ~$1,700/year.
- Payback = $17,000 ÷ $1,700 ≈ 10 years.
If that number is under ~10, solar is very likely worth it for you; 10–14, it depends on how long you will stay and how confident you are in the inputs; over 15, be skeptical of any quote that claims otherwise. Then confirm with the solar savings calculator and three real quotes.
When it clearly works
High electricity rate, decent sun, a south-facing unshaded roof in good condition, planning to stay in the home 10+ years, paying cash or using a low-rate loan (home equity, not a high-fee solar loan), full retail net metering, and meaningful state incentives to offset the missing federal credit.
When it clearly does not
Low electricity rate, heavy shade or poor orientation, a roof due for replacement soon, planning to move within a few years, or financing through a high-fee lease or dealer loan that consumes most of the savings.
The mistakes that ruin the math
- Dealer-financed loans with hidden fees. A “$0 down, same as cash” loan often bakes 20–30% into the system price. Always compare the cash price.
- Oversizing. Building a system bigger than your annual usage in a place that pays little for exports is wasted money.
- Ignoring the roof’s age.
- Trusting one salesperson’s payback number instead of modelling it with your own rate and usage.
- Forgetting the opportunity cost. The cash spent on solar could have been invested; compare the payback period to what that money would likely have earned.
Own, loan, lease, or PPA
How you pay changes the return more than most people expect:
| Option | Upfront | Who owns it | Lifetime savings | Notes |
|---|---|---|---|---|
| Cash | Full price | You | Highest | Best return; ties up capital |
| Home equity loan / HELOC | Little | You | High | Low rate, interest may be deductible; the sensible way to finance |
| Solar-specific “dealer” loan | $0 down | You | Reduced | 20–30% dealer fee baked into the price — always compare the cash price |
| Lease | $0 down | Installer | Low–moderate | Fixed monthly payment, often with a 1–3%/year escalator; can complicate a home sale |
| PPA (power-purchase agreement) | $0 down | Installer | Low–moderate | You buy the power the panels make at a set per-kWh rate; the installer keeps the tax benefits |
A cash or HELOC purchase captures the full savings and any home-value bump. A dealer loan quietly gives a big slice back to the lender. A lease or PPA removes risk and upfront cost but keeps your savings small and adds a contract that a future buyer has to assume.
The bottom line
Home solar in 2026 is worth it when your electricity rate is high, your roof faces the sun and has years of life left, your state offers real incentives, and you will stay put long enough to clear a payback that is now typically 10–15 years without the federal credit. It is a poor deal on a cheap-power grid, a shaded roof, or a high-fee finance package. Use the solar savings calculator for a first estimate, then get three real quotes.