Solar Loan vs Solar PPA
A California homeowner's guide to choosing between owning your solar system and paying for the energy through a Solar-Based Utility.

A solar loan lets you buy and own your solar system, while a solar PPA (what we call a Solar-Based Utility) lets you pay only for the power the panels produce, usually with little or no money down. In California, a loan tends to win on long-term savings and the federal tax credit if you qualify and plan to stay in the home. A PPA tends to win on low upfront cost, simpler maintenance, and predictable payments. The right choice depends on your PG&E bill, your roof, your tax situation, and how long you will stay.
If you have started researching solar, you have probably noticed there are two very different ways California homeowners go solar: buy the system (cash or a solar loan) or buy the energy (a solar PPA, which we call a Solar-Based Utility). This guide explains the difference in plain English, with the local PG&E and NEM 3.0 context that actually affects your decision.
Key takeaways
- A solar loan means you own the equipment and may claim the federal tax credit; a solar PPA / Solar-Based Utility means you buy the energy, not the hardware.
- Loans tend to deliver more long-term savings; PPAs tend to win on low upfront cost and reduced maintenance responsibility.
- Under California's NEM 3.0 (the Net Billing Tariff), a battery often matters more than it used to, whichever way you finance.
- The best option depends on your PG&E bill, roof, usage pattern, tax situation, and how long you plan to stay.
- Either way, compare monthly payment, contract terms, transferability at sale, and protection from rate increases.
What is a solar loan?
A solar loan lets you purchase the system installed on your home. The panels, inverter, and equipment become yours, and the loan is paid off over time.
With a solar loan, homeowners typically:
- Finance the system over roughly 10 to 25 years
- May claim the federal Residential Clean Energy Credit if eligible
- Take on ownership and maintenance responsibility
- Build equity in the equipment
Instead of paying PG&E for most of your electricity, you make a payment toward owning an energy-producing asset.
What is a solar PPA (Solar-Based Utility)?
A solar PPA is a Power Purchase Agreement. A provider installs and maintains the system, and you buy the electricity it produces. At Senga Energy we call this a Solar-Based Utility because it is easier to picture: you are replacing part of your utility service with power generated on your own roof.
With a Solar-Based Utility, homeowners often see:
- Little or no upfront investment
- Reduced maintenance responsibility
- Production guarantees in many agreements
- Payment for energy instead of equipment
Most homeowners do not own the power plant that makes their electricity today. A Solar-Based Utility works similarly, except the power is generated on your property.
Solar loan vs solar PPA: side-by-side comparison
| Factor | Solar loan | Solar PPA / Solar-Based Utility |
|---|---|---|
| Upfront cost | Financed purchase, often $0 down | Typically little or no money down |
| Who owns the system | You | The provider |
| Federal tax credit | You may claim it if eligible | Claimed by the provider, not you |
| Monthly payment | Fixed loan payment until paid off | Pay per kWh, may include an annual escalator |
| Maintenance and repairs | Your responsibility after warranty | Provider typically maintains the system |
| When you sell | Pay off, transfer, or address at closing | Transfer to the buyer, subject to approval |
| Best fit for | Owners staying long-term who want equity and tax benefits | Owners who want low upfront cost and simplicity |
The single biggest difference: with a loan you are buying equipment; with a Solar-Based Utility you are buying energy. That one distinction shapes almost everything else.
Not sure which option fits your home?
Tell us your PG&E bill and we will walk you through both paths. No pressure, just answers.
Call 916-914-8580Pros and cons
Solar loan
- Pro: long-term savings and equity; you may claim the tax credit
- Pro: protection from utility purchases once paid off
- Con: credit qualification, a longer commitment, and maintenance after warranty
Solar PPA / Solar-Based Utility
- Pro: little or no upfront cost and simpler maintenance
- Pro: predictable energy payment, often with a production guarantee
- Con: you do not own the system or claim the tax credit, and the agreement is transferred at sale
What California homeowners should know (NEM 3.0, PG&E, and batteries)
California changed how solar exports are credited. Homes that interconnected on or after April 15, 2023 are on the Net Billing Tariff (NEM 3.0), where credits for power sent to the grid are generally lower than under NEM 2.0.
Because exports are worth less, storing your own power in a solar battery and using it at night can matter more than it used to, whichever way you finance. A battery can also keep essential circuits running during a PG&E outage.
With PG&E rate increases a recurring topic across Northern California, locking in a predictable solar payment is part of why homeowners look at both loans and Solar-Based Utilities in the first place. Actual savings depend on your usage, rate plan, and system design.
What we see in the field
Across PG&E territory in El Dorado Hills, Placerville, Cameron Park, Auburn, and the greater Gold Country, a few patterns come up again and again.
The most common misunderstanding is that solar is one product with one price. It is not. Two neighbors with the same roof can land on very different recommendations based on when they use power and how big their bill is.
Before we recommend a loan or a Solar-Based Utility, our team checks:
- Roof age, condition, orientation, and shading
- Your PG&E bill size and when you use the most power
- Whether a battery is worth it under NEM 3.0 for your usage
- How long you plan to stay in the home
- Your goals: ownership and equity, or low upfront cost and simplicity
Two homeowner examples
These are illustrative, not quotes, but they show how the same question can have different answers.
Higher bill, evening usage. A homeowner with a $300 PG&E bill who uses most of their power after sunset may benefit from ownership plus a battery, so they store daytime production and avoid expensive evening rates.
Lower bill, wants simplicity. A homeowner with a $125 bill who prefers no upfront cost and no maintenance may be a better fit for a Solar-Based Utility, trading some long-term upside for a predictable monthly payment.
When a solar loan makes sense
- You want to own the system and build equity
- You qualify for financing and can use the tax credit
- You expect to stay in the home long-term
- Maximizing long-term savings matters more than upfront simplicity
When a Solar-Based Utility makes sense
- You want little or no upfront investment
- Predictable monthly cost matters more than ownership
- You prefer the provider to handle maintenance
- You want an alternative to rising utility rates without buying equipment
Questions to ask before you decide
Whichever direction you lean, get clear answers in writing. California's Solar Consumer Protection Guide is a useful neutral reference.
- Is there an escalator, and how much does the payment rise each year?
- Who claims the federal tax credit, and am I eligible?
- How does a transfer or buyout work when I sell?
- Who is responsible for maintenance and repairs?
- What happens if I refinance the home?
- Is a battery recommended for my usage under NEM 3.0?
Have a PG&E bill over $200?
That is usually where this decision matters most. We can review your bill, roof, and battery eligibility first.
Call 916-914-8580Glossary
- PPA: Power Purchase Agreement. You buy the power the system produces; the provider owns the equipment.
- Solar loan: Financing to purchase and own the system, repaid over time.
- NEM: Net Energy Metering, the older rules (NEM 2.0) for crediting exported solar power.
- Net Billing Tariff (NEM 3.0): California's current rules, where export credits are generally lower than under NEM 2.0.
- True-up: The annual reconciliation of your solar credits and charges on your PG&E account.
- ITC: The federal Residential Clean Energy Credit available to eligible system owners.
- Escalator: A clause that raises a PPA payment by a set percentage each year.
- Buyout: Paying to purchase the system or end a PPA, often relevant at sale.
- Transferability: Whether a PPA can be passed to a home buyer at closing.
- Battery backup: Storage that powers essential circuits during an outage and stores daytime energy for night use.
Frequently asked questions
Is a solar loan better than a PPA in California?
Not always. A solar loan usually delivers more long-term savings and lets eligible owners claim the federal tax credit, but it requires qualification and a longer commitment. A solar PPA, or Solar-Based Utility, trades some long-term upside for little or no upfront cost and simpler maintenance. The better choice depends on your PG&E bill, tax situation, and how long you plan to stay.
Does a solar PPA put a lien on your home?
Usually not in the way people fear. A solar PPA typically does not create a traditional mortgage lien. Some agreements include a UCC-1 filing that protects the provider's ownership of the equipment, not your home. Homes with PPAs are bought and sold across California regularly. See our guide on whether a solar PPA puts a lien on your home.
Can you sell a home with a solar PPA?
Yes. Homes with solar PPAs are sold throughout California every year. At closing the agreement is usually transferred to the buyer, bought out, or otherwise addressed, depending on the contract. The process is manageable when handled early and disclosed clearly. Ask your provider how transfers work before you sign so there are no surprises at sale.
Do batteries make solar more valuable under NEM 3.0?
Often, yes. Under California's NEM 3.0, credits for exporting power to the grid are generally lower than under NEM 2.0. Storing your own energy in a battery and using it at night can improve the economics and add backup power during PG&E outages. Whether a battery pencils out depends on your usage and rates.
What happens if PG&E rates keep rising?
If PG&E rates keep climbing, locking in a predictable solar payment can protect you from some of those increases, whether you choose a loan or a Solar-Based Utility. Owned systems offset utility purchases directly; PPAs set a contracted rate that may include an annual escalator. Review the escalator and compare it against expected utility increases before deciding.
How do I know if my home qualifies?
Most owner-occupied homes with a reasonably sound, sun-exposed roof can qualify. We look at roof age and condition, shading, orientation, your PG&E usage, and battery eligibility. The fastest way to know is a quick review of your bill and roof. Senga Energy can check your eligibility and recommend whether a loan or Solar-Based Utility fits before you commit.
Your next step
If you want to know whether a solar loan or a Solar-Based Utility fits your home, Senga Energy can review your PG&E bill, roof, usage, and battery eligibility before recommending a path. There is no obligation, and you can check your eligibility online or call us directly.
See which option fits your home
A quick, no-pressure review of your bill, roof, and battery eligibility.
Call 916-914-8580Rate plans, NEM and Net Billing rules, and the federal tax credit can change and depend on your situation. Verify current details with the linked sources, including the CPUC, the IRS, the DSIRE incentive database, and the U.S. Department of Energy, before making a decision.