If you’re comparing solar financing options in Orange County, you’ve probably run into two terms that sound similar but work very differently: the solar lease and the Energy Service Agreement (ESA). Both let you get panels on your roof with little or no money down, and both typically include maintenance and monitoring. But how you end up owning (or not owning) your system is where they really diverge, and that difference is worth understanding before you sign anything.
The Short Version
With a solar lease, a third party owns your system for the life of the contract, typically 20 to 25 years, and you pay a fixed monthly rate to use the power it produces. You never automatically take ownership. With an ESA, a third party also owns the system at first, but ownership is built to transfer to you at a set point, often around year five, after which the system is fully yours with no further payments tied to it.
Who Owns the System, and When
This is the biggest practical difference. A lease is structured as a long-term rental: the leasing company keeps the title to the equipment for the full term, and if you want to own it outright before the contract ends, that usually means negotiating a buyout, often at a price that isn’t locked in when you sign. An ESA is built around a handoff. The financing company owns the system just long enough to capture certain upfront tax benefits, then ownership transfers to the homeowner automatically, no separate purchase required.
How the Payments Work
Lease payments are usually fixed at signing but often include a small annual escalator, commonly in the 0% to 3% range, so your payment can creep up year over year even though your usage hasn’t changed. ESA payments are more often structured as a single flat monthly fee for the life of the agreement, with no escalation built in. Because the financing company in an ESA structure claims a commercial tax credit and passes some of that savings back to you, the underlying cost can also come in lower than a comparable lease.
Why This Matters More Since the Residential Tax Credit Changed
Now that the 30% federal tax credit for customer-owned systems is no longer available for systems placed in service in 2026 and beyond, third-party ownership structures like leases and ESAs have become a bigger part of the conversation, since they can still tap into a separate commercial credit that homeowner-owned systems can’t. That makes the lease-versus-ESA decision less of a footnote and more of a central question: are you optimizing for the lowest possible monthly payment with no path to ownership, or for eventually owning the system outright without dealing with tax paperwork yourself?
Questions Worth Asking Before You Sign Either One
Whichever structure a proposal uses, it’s worth asking directly: Do I ever own this system, and if so, when and under what terms? Does my payment increase over time, and by how much? What happens to the agreement if I sell my home? What maintenance, monitoring, and performance guarantees are actually included, and for how long? The answers can vary a lot between providers even when the paperwork uses the same label.
The Bottom Line
A solar lease and an Energy Service Agreement can look similar on the surface, low or no money down, a predictable monthly payment, maintenance included, but they lead to very different places. A lease keeps you as a long-term customer of the system’s owner; an ESA is built to eventually make you that owner. Not sure which structure fits your situation in Aliso Viejo or elsewhere in Orange County? Reach out to Energy-SBC and we’ll walk you through the financing options available for your home and what each one actually means for your roof over time.
Related reading: Learn more about home solar installation, solar battery backup, what to know before you get solar quotes, and home solar panel cost. Have questions about your own project? Contact Energy-SBC for a free consultation.