Terra Energy vs. Sunrun: How Two Solar Subscription Models Compare

Terra Energy and Sunrun both let homeowners go solar with $0 upfront, but the similarities mostly end there. Sunrun's subscription is a 25-year lease with contract terms that lock in for decades, while Terra Energy's is a 3-year initial term with no loans or liens on the home. If you're comparing the two, the real question isn't whether you'll pay upfront since neither company charges to start. What you should explore is how long you're committing, and what you're committing to.

What's the Difference Between Terra Energy and Sunrun?

Both companies solve the problem of the high upfront cost of traditional solar. But they solve it with different structures. Sunrun's best-known product, sometimes called the Sunrun Subscription or BrightSave Monthly, works like this: Sunrun owns the system, installs it on your roof, and you pay a fixed monthly rate for the power it produces over a 25-year agreement.

Terra Energy takes a different approach. We turned solar into a subscription with an initial term of just 3 years, rather than a quarter-century lease. Customers get solar and battery backup, $0 upfront costs, and no loans or liens on their property. You can exit after the initial 3-year term without penalty.

The distinction matters because it changes what you're actually signing. A 25-year lease is a long-term obligation tied to your home. A 3-year subscription is closer to a service you can walk away from if it's not working for you.

Does Either Company Include Battery Backup?

Terra Energy includes battery backup as part of the subscription. Sunrun offers battery storage too, but as an optional add-on that increases the system's cost rather than something bundled in from the start.

That distinction plays out differently in each of Terra Energy's markets. In Florida, battery backup is built into the subscription for hurricane preparedness and protection from rising FPL rates. In Texas, it's bundled with electricity service itself through TerraOne — combining power, solar, and battery into one predictable monthly product instead of three separate bills to manage.

Who Owns and Maintains the System?

Terra Energy and Sunrun solar subscription ownership works the same way: maintenance, monitoring, and repairs are included for the life of the subscription. The difference isn't who maintains the system; it's how long you're tied to the arrangement and what your options look like once the initial term is up.

How Do Equipment Warranties Compare?

When it comes to warranties, the distinction is more important to consider. Terra Energy covers the solar system for the life of the agreement, while Sunrun's warranty is term-limited.

Sunrun's warranty coverage is term-limited: a 15-year solar equipment and maintenance warranty, a 10-year battery warranty, and a 10-year watertight roof guarantee. Once those windows close, coverage on that component ends even if the lease continues.

Terra Energy takes a different approach because we retain ownership of the system for the life of the subscription. That means full coverage, including damage, theft, and malfunctions, for as long as you're subscribed, not a fixed number of years. If anything happens to the system, our team handles repairs or replacements at no additional cost. Routine check-ups and unexpected issues are both covered, so homeowners don't have to track separate warranty expiration dates for panels, batteries, and roofing. It's one ongoing commitment for the life of the subscription, rather than a stack of warranties that wind down on different schedules.

Which Model Fits Your Situation?

If you know you'll be in your home for decades, and you're comfortable with a long-term agreement, a traditional 25-year solar lease like Sunrun's may feel familiar. It's the model most of the residential solar industry has used for years. If you'd rather not sign a 25-year contract to get $0-upfront solar, Terra Energy's 3-year initial subscription term is built specifically for that: predictable monthly costs, no loans or liens, and the flexibility to exit after year three if your needs change.

Homeowners considering either option should ask the same core questions:

• What's the actual contract length?

• Is there a lien on the property?

• Do payments increase over time, and by how much?

Those answers matter more than the sticker price of "$0 down," since both companies lead with that offer.

If you want to see how a 3-year subscription compares to your current utility bill and what a traditional 25-year lease would cost over that same window, that's exactly the kind of side-by-side we walk homeowners through before they sign anything.
See if your home qualifies → terraenergy.io/application