Community & shared solar

Ownership vs subscription comparison tool

Buying panels and subscribing to community solar both save money, just on different timelines. Enter your real numbers on both sides and see which wins for your situation.

Your numbers

1 Project details Optional
Shown on your exported report. Leave blank to skip.
2 Shared usage and timeline
Use the same figure for both sides of the comparison.
Your retail electric rate today, used as the baseline for both scenarios.
25 years is the standard panel warranty period. Use a shorter number if you plan to move.
US utility rates have risen roughly 2.5% to 4% a year on average over the last decade.
3 Ownership scenario
Typical 7 kW residential systems run $17,000 to $23,000 before incentives.
The federal residential credit plus any state or utility rebate you qualify for.
Most panels degrade 0.3% to 0.6% a year. Manufacturer warranties list the exact figure.
Inverter replacement reserve, cleaning, and monitoring, averaged per year.
4 Subscription scenario
The percentage below the credit value you pay the provider.
Annual increase to your subscription cost, if your contract has one.

How it works

Three steps to a fair comparison

Step 1

Use the same usage figure on both sides

Enter the same annual kWh offset for both scenarios so the comparison is apples to apples. If you're not sure how many panels that usage needs, check the solar panel calculator.

Step 2

Fill in your real ownership numbers

Get an actual quote for system cost rather than a rough guess, since financing terms and installer pricing vary a lot by region. Include the federal tax credit and any state incentive you actually qualify for.

Step 3

Check the crossover point for your timeline

If you're not planning to stay in your home for the full horizon, a shorter comparison window often favors subscription. Run the payback crossover calculator to find the exact year ownership pulls ahead.

Understanding the tradeoff

Why ownership usually wins long term, and subscription wins short term

Ownership means a large upfront cost or loan payment, but no ongoing subscription fee once the system or loan is paid off. Subscription means no upfront cost at all, but a monthly cost for as long as you're enrolled. A cash-purchased $19,000 system can net over $30,000 more than a subscription over 25 years, but a 5-year subscription with zero upfront cost stays ahead of ownership the entire time.

How financing changes the math

A solar loan spreads the upfront cost into monthly payments, which narrows the early-year gap between ownership and subscription since you're not paying the full system cost on day one. Higher interest rates and longer loan terms both push the ownership break-even point further out. Compare your specific loan terms against a cash purchase using the third-party-owned vs owned system comparison if you want more detail on loan structures.

What panel degradation does to ownership savings over time

Owned panels lose a small amount of output every year, typically 0.3% to 0.6%, so your bill savings shrink slightly each year even as the utility rate rises. This effect is small in any single year but adds up over a 25-year horizon. A subscription's output doesn't degrade the same way for you individually, since you're sharing a large array that gets maintained and sometimes repowered by the provider. The Department of Energy's community solar basics guide covers this shared-maintenance advantage in more depth.

What this comparison doesn't capture

This tool compares direct financial outcomes only. It doesn't account for home resale value, which owned solar can modestly increase, or for the flexibility of canceling a subscription without a lien on your property. If moving within the next few years is a real possibility, weigh the portability when moving tool alongside these numbers.

Where to go next

If ownership comes out ahead but the upfront number still feels big, check the rebates and incentives hub for programs that might lower it further. If subscription comes out ahead, compare providers directly with the provider comparison tool. Check the DSIRE database too before deciding, since a strong local incentive can shift which option actually wins for you.

Questions

Frequently asked

Ownership usually wins over 20 to 25 years since there's no monthly subscription cost after the system or loan is paid off, but subscription wins in the short term since there's no upfront cost. A cash-purchased $19,000 system can net over $30,000 more than a subscription over 25 years, while a 5-year subscription with no upfront cost stays ahead the whole time.

For a typical cash-purchased system, the crossover point where ownership savings pass subscription savings usually falls between year 6 and year 10, depending on system cost, incentives, and your subscription discount. A financed system with a 15-year loan often takes closer to 10 to 15 years to pull ahead.

No, the federal residential solar tax credit only applies when you own a system, either through cash purchase or a solar loan. Community solar subscribers don't own equipment, so this incentive doesn't apply to a subscription, though some state programs offer separate community solar incentives.

Community solar is built for exactly this situation, since you subscribe to a shared array instead of installing anything on your own property. Renters, condo owners, and anyone with a shaded or unsuitable roof can subscribe without an ownership comparison being relevant at all.

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