Best Solar Companies in California (2026): An Honest Ranking After the Shakeout

Two years ago the standard advice for a California homeowner was to get three quotes: one national, one regional, one local. That advice is now actively dangerous, because a meaningful share of the "national" tier no longer exists in the form it did when those lists were written.

We install solar and battery systems across California, so we read a lot of competitor quotes. What we keep seeing in 2026 is homeowners bringing us proposals from companies that are in Chapter 11, or citing a federal tax credit that expired seven months ago, or both. This page is the ranking we wish existed when those homeowners started looking.

First: the shakeout nobody put on the "best of" lists

Company	What happened	What it means if you're shopping now
SunPower Corp.	Filed Chapter 11 on August 5, 2024. Complete Solaria bought the assets in September 2024 and rebranded itself as SunPower in April 2025.	The name on the truck is not the company that warrantied older systems. Systems energized on or before September 30, 2024 are handled separately — cash and loan customers through their lender, lease and PPA customers through SunStrong Management. Systems energized after that date sit with the new SunPower Inc.
Sunnova	Filed Chapter 11 in June 2025, alongside solar lender Mosaic, after laying off 55% of its workforce. Roughly 500,000 customers and about $8.9 billion in debt went into the process.	We would not sign a new 25-year service agreement with a company in restructuring. Existing customers should read the guidance on their specific contract rather than assume anything.
Freedom Forever	Filed Chapter 11 in Delaware on April 15, 2026. Nearly 2 GW installed across 35 states, over 3,600 employees, assets of $100–500M against liabilities of $500M–$1B. Mosaic was the largest creditor at roughly $120 million.	Equipment manufacturer warranties (panels, inverters, batteries) generally survive independently. Workmanship and labor warranties are the exposure — those were Freedom Forever's obligation, and labor is the expensive half of a repair.

The pattern is worth naming, because it will repeat: the companies that failed were overwhelmingly finance-led — heavy on lease and PPA origination, dealer networks, and third-party capital, light on the actual installation crews. When interest rates rose and California moved to NEM 3.0, the origination economics broke and the capital stack went with them.

That's the lens we'd use on any company you're considering, including us: does it make money installing, or does it make money originating financing?

How we ranked these — and where we lose

Six criteria, weighted toward what still matters to you in year eight:

1. Who actually does the install — W-2 crews, or a dealer network subcontracting your roof to whoever is available that week?
2. NEM 3.0 design competence — does the proposal size for self-consumption, or is it still maximizing exports like it's 2022?
3. Pricing transparency — line-item quotes with real equipment model numbers, or a monthly payment and a smile?
4. Honest incentive language — anyone still saying "30% federal residential tax credit" on a 2026 purchase is disqualified from the top half of this list.
5. Verifiable track record — active CSLB license, real review volume, verifiable install count.
6. Financial durability — is the entity signing your workmanship warranty likely to exist to honor it?

We rank first on criteria 1 through 5. Our crews are our own on nearly every project, every design is reviewed by the owner before it reaches you, our quotes are line-itemed, and we updated our incentive language the week the residential credit expired rather than seven months later.

Where we lose, plainly:

• Balance sheet. Sunrun has over a million subscribers and a Fortune 1000 listing. We are a Santa Monica company with 1,000+ installs. If your single overriding concern is "will this entity exist in 2046," Sunrun is the stronger answer and we won't pretend otherwise.
• Lease and PPA products. We offer cash, loan, and prepaid lease. If you specifically want a traditional PPA, Sunrun and Palmetto are built for that and we are not.
• Volume in Northern California. We install statewide, but Southern California is our home market — most of our crews, permit relationships, and installed base are south of the Tehachapis. A Bay Area or Sacramento homeowner should weigh that honestly against a long-tenured local NorCal installer.

That's the trade. Read it and decide which column matters more to you.

Best solar companies in California (2026): at a glance

#	Company	Base	Coverage	Model	Best for
1	Helios Energy Global	Santa Monica	Statewide (SoCal core)	Cash, loan, prepaid lease	Owner-reviewed custom design and honest NEM 3.0 math
2	Sunrun	San Francisco	Statewide	Lease, PPA, loan, cash	The largest balance sheet in residential solar
3	Tesla Energy	Statewide	Statewide	Cash, loan	Vertically integrated solar + Powerwall in one purchase
4	Baker Electric Home Energy	Escondido	San Diego / SoCal	Cash, loan	Long-established regional installer with deep utility experience
5	Semper Solaris	San Diego	SoCal + Bay Area	Cash, loan, financing	Homeowners who need roofing and solar from one contractor
6	NRG Clean Power	Los Angeles area	SoCal	Cash, loan, financing	Long operating history and an unusually deep education library
7	Solar Optimum	Glendale	SoCal	Cash, loan, financing	High review volume and premium equipment lines
8	Sunlux	Orange County	SoCal	Cash, loan, financing	Consistently strong service ratings in OC and the Inland Empire
9	Palmetto	National	Statewide	Cash, loan, subscription	Ongoing monitoring and post-install service plans
10	SunPower Inc.	Statewide dealer network	Statewide	Cash, loan, lease	High-efficiency panels — with the bankruptcy history understood first

This ranking is Helios Energy Global's editorial opinion, not paid placement, and we placed ourselves at the top. Verify every company's active CSLB license and current service area before signing anything — including ours.

The rankings

1. Helios Energy Global — best for owner-reviewed custom design

We're a Santa Monica–based solar and battery installer (CSLB #982201, C-10 Electrical), Tesla Certified as of July 2026, with 1,000+ installations and 8+ MW deployed, at 4.9 stars across roughly 170 Google reviews. Work is performed by our own crews on nearly every project.

What we actually do differently is unglamorous: every design is reviewed by the owner before it goes to the homeowner. Not an algorithm, not a commissioned rep who has never been on your roof — a person who has to answer for the number. In practice that means arrays sized against your real load profile for NEM 3.0 self-consumption rather than maximum panels on the roof, honest battery payback math including the cases where a battery doesn't pencil, and line-item pricing you can compare against anyone else's.

It also means we tell people not to buy sometimes. If your roof has four years left, you should replace it first. If you're on LADWP with low usage, solar-only may beat the solar-plus-battery package everyone wants to sell you. Those conversations cost us revenue and they're the reason the review average is what it is.

Coverage: Statewide. Southern California — Los Angeles, Orange, Ventura, Riverside, San Bernardino, San Diego, and the Coachella Valley — is our core market and where the majority of our installed base sits. We do serve Northern California; ask us about timelines for your specific area rather than assuming.

Best for: Homeowners who want a custom-engineered system, honest NEM 3.0 guidance, and no high-pressure sales process. Ask us: For a shading analysis, a self-consumption estimate against your actual utility rate, and cash / loan / prepaid-lease economics side by side. Book a free consultation or see current pricing.

2. Sunrun — best for balance-sheet durability and statewide lease coverage

Sunrun is the largest residential solar company in the United States and, after two years of industry attrition, one of the few national names whose numbers are moving the right direction. As of March 31, 2026 it reported 1,014,945 subscribers, up 11% year over year, on Q1 revenue of $722.2 million — a 43% year-over-year increase that put it on the 2026 Fortune 1000. Its storage attachment rate hit a record 73%, which tells you it has genuinely adapted to NEM 3.0 economics rather than fighting them.

The caveat is the model. 93% of Sunrun's Q1 2026 customer additions were subscriptions — leases and PPAs, not purchases. That's a legitimate product, but it is a fundamentally different financial instrument from owning a system, and the escalator schedule is where homeowners get surprised twelve years in.

Best for: Homeowners anywhere in California who want the largest possible company behind a 20–25 year agreement, and who genuinely prefer a lease or PPA to ownership. Ask them: For the full escalator schedule in writing, what happens at end of term, and exactly how export credits under NEM 3.0 flow to you versus to Sunrun under the agreement.

3. Tesla Energy — best for integrated solar plus storage

Tesla sells panels and Powerwall through a single online-first process with installation by Tesla-certified crews. Under NEM 3.0, where the battery is doing most of the economic work, buying both halves from one vendor removes a whole category of finger-pointing when something doesn't communicate correctly.

The trade-off is process, not product. Tesla's model is standardized by design, which is excellent on a simple composition-shingle roof and less excellent on a complex tile roof with three planes and a mature tree canopy. Post-install service escalation is the most common complaint we hear from homeowners who went that route.

Best for: Homeowners who want Powerwall 3 at the center of the design and are comfortable with a low-touch, standardized purchase. Ask them: Who physically performs the installation, what the timeline to permission-to-operate looks like in your jurisdiction, and what the service escalation path is after PTO.

4. Baker Electric Home Energy — best established San Diego regional installer

Baker has been operating in Southern California for decades, with a residential energy division built on top of a long-standing electrical contracting business. That matters in SDG&E territory, where interconnection and permitting are their own discipline and where the highest retail rates in the continental US make design quality worth paying for.

Best for: San Diego County and inland SoCal homeowners who want a regionally rooted company with a long operating history. Ask them: For recent local references, current install backlog, and the specific equipment proposed for your roof type.

5. Semper Solaris — best for solar plus a roof replacement

Veteran-founded and San Diego–based, with locations in SoCal and the Bay Area, Semper is one of the few California companies doing both roofing and solar as core business lines rather than as a bolt-on. If your roof has fewer than ten years left, doing both at once avoids paying twice for panel removal and reinstallation later. (We handle solar plus roof as well — this is a real category, and worth getting two quotes on.)

Best for: Homeowners whose roof needs replacing in the same window as the solar install. Ask them: For separately line-itemed roofing and solar pricing so you can evaluate each on its own merits, and for the workmanship warranty terms on both.

6. NRG Clean Power — best education resources, and a real competitor

We're including a company that outranks us in search on nearly every term we care about, because pretending otherwise would be silly. NRG Clean Power is a long-operating Southern California installer with a genuinely deep learning center. If you want to read your way to competence before you talk to anyone, their library is one of the better ones in the state.

Our one substantive criticism, offered plainly: as of this writing their statewide "best solar companies" ranking still lists SunPower and Freedom Forever in its top five. Freedom Forever filed for bankruptcy in April 2026. That's the exact failure mode this page exists to correct — and a good reminder to check the "last updated" date on any ranking, including this one.

Best for: Homeowners who want to self-educate deeply before shortlisting. Ask them: The same things you'd ask anyone — crew employment status, NEM 3.0 design approach, and line-item pricing.

7. Solar Optimum — best for review volume and premium equipment

Glendale-based, with one of the larger verified review footprints of any SoCal installer and a focus on premium panel and inverter lines. Consistently visible on third-party marketplaces like EnergySage.

Best for: Los Angeles–area homeowners who want a high-volume installer with a long public review history. Ask them: Which specific panel and inverter models are in your quote, and whether the crew is in-house.

8. Sunlux — best service ratings in Orange County

Orange County–based, with unusually consistent service ratings across third-party review platforms for a company of its size. Strong presence in OC and the Inland Empire.

Best for: Orange County and Inland Empire homeowners weighting post-install service experience heavily. Ask them: For the workmanship warranty term in writing and their average time from contract to PTO in your city.

9. Palmetto — best for ongoing monitoring

Palmetto is a technology-platform company that pairs installation with continuous monitoring and a paid service plan. Under NEM 3.0, where your bill outcome depends on the split between self-consumed and exported kilowatt-hours, real-time visibility has more value than it used to.

Best for: Homeowners who want a monitoring dashboard and a defined post-install service relationship. Ask them: Which local partner performs the physical install, that partner's CSLB number, and precisely what the service plan covers versus excludes.

10. SunPower Inc. — good panels, complicated history

The current SunPower is Complete Solaria, which bought the bankrupt SunPower Corporation's assets in September 2024 and adopted the name in April 2025. It reported its first profitable quarter in four years in Q1 2025 and acquired Sunder Energy that September. The panels are still good.

We rank it tenth not on product but on warranty legibility. If you buy today, your warranty is with the new entity. If you already own a SunPower system, which entity covers you depends on whether it was energized before or after September 30, 2024 and on how you financed it — and that is a genuinely confusing thing to have to explain to a future buyer of your home.

Best for: Shaded or space-constrained roofs where panel efficiency per square foot genuinely changes the outcome. Ask them: Which legal entity issues your warranty, which dealer performs the install, and that dealer's independent CSLB record.

If you're in Northern California

We install statewide and we'd be glad to quote your project — but we'll be straight about what's different up there, because a good decision needs it:

• PG&E territory runs about 41.5¢/kWh as of January 2026 — high, but roughly 4.5¢ below SDG&E. The NEM 3.0 math is the same shape; payback is slightly slower than San Diego and faster than almost anywhere else in the country.
• SMUD, Roseville, and other municipal utilities are not CPUC-regulated and do not fall under NEM 3.0. If you're in a muni territory, net-metering rules are set locally and are often far more favorable. This single fact changes the system design more than the choice of installer does — make sure whoever quotes you leads with it.
• Our installed base is concentrated in Southern California. That's not a reason to rule us out, but it is a reason to ask us directly about scheduling and crew availability for your city before you shortlist. We'd rather tell you a realistic timeline than win a job we can't service well.
• Sunrun, Tesla, Palmetto, and SunPower's dealer network all operate statewide, and everything written above applies unchanged.
• Long-tenured local NorCal installers — the ones installing before the 2020 boom and still installing after the 2025 bust — are a legitimate shortlist alongside us. Run every name through the verification process below.

What solar actually costs in California in 2026

System size	Typical gross installed cost	Suits
5 kW	$12,000–$16,250	Small home, low usage, mild climate
7 kW	$16,800–$22,750	Typical coastal 3-bedroom
10 kW	$24,000–$32,500	Larger home with AC or an EV
12 kW	$28,800–$39,000	Inland home, pool, multiple EVs
+ Battery (13.5 kWh)	$13,500–$17,500	Nearly every IOU-territory install under NEM 3.0

At roughly $2.40–$3.25 per watt, California pricing sits above the national average — higher labor costs, higher permitting burden, stricter code. A quote meaningfully below that range deserves scrutiny about equipment tier and crew employment, not celebration. Full detail on the California solar panel cost page, and what you're currently paying the utility on the average California electric bill.

The financing question everyone gets wrong in 2026

The 30% federal residential clean-energy credit ended on December 31, 2025. It does not apply to any 2026 installation. If a quote, a website, or a salesperson tells you otherwise, that is the loudest disqualifying signal available to you — it means either they haven't updated their materials in seven months, or they're counting on you not knowing.

What survives is the federal commercial clean-energy credit, claimed by whoever owns the system. Through a prepaid lease — our Propel program through Concert Finance, or Participate Energy's prepaid lease — the financing partner captures that commercial credit and passes roughly 30% through as money off your cost up front. You take title to the system, in your name, at the start of year 6, essentially for free.

In some ways it's better than the credit it replaced, because it's a reduction at signing rather than a refund you wait for at tax time. It is a financing structure, not a tax filing, and we are not tax advisors — we put the structure in writing and recommend you confirm it with yours. Ask every company on your shortlist whether they offer one; a surprising number still don't.

How to verify any California solar company in ten minutes

1. Check the CSLB license. Search the company at the CSLB license lookup. Confirm it's active, confirm the classification (C-10 Electrical or C-46 Solar), confirm the bond, and read the complaint history. A company that won't give you its license number in writing has answered your question. Ours is #982201.
2. Confirm the license matches the entity on the contract. Dealer-network models are where this breaks. The brand on the proposal and the licensed contractor doing the work are frequently not the same company.
3. Read the CPUC's Solar Consumer Protection Guide. California requires it be provided to you before you sign. If nobody gave it to you, that's a compliance failure on their side.
4. Ask who employs the crew. W-2 employees or subcontractors — either can be fine, but the answer tells you where accountability sits when something leaks in year four.
5. Get the workmanship warranty term in writing, separately from the manufacturer warranties. Panels are warrantied by the manufacturer for 25 years regardless of who installs them. Labor is the exposure.
6. Check the incentive language. Any mention of a 30% residential federal tax credit on a 2026 purchase is a hard stop.
7. Demand a line-item quote — panel model and count, inverter model, battery model, racking, labor, permitting, and interconnection, each priced. A single monthly payment is not a quote.

Red flags that should end the conversation

• Door-to-door or same-day-only pricing. California gives you a three-day right to cancel; a legitimate company can wait three days.
• "Free solar" or "the government pays for it." No.
• A 30% residential federal tax credit quoted on a 2026 installation.
• Refusal to put the workmanship warranty term in writing.
• A proposal sized to maximize export under NEM 3.0 — it shows they haven't updated their design methodology since 2022.
• No CSLB number on the written proposal. California contractors are legally required to display it in advertising.

Where Helios works

Our core service area is Southern California: Los Angeles County, Orange County, Ventura County, Riverside County, San Bernardino County, San Diego County, and the Coachella Valley. We also take projects elsewhere in California — reach out and we'll tell you honestly what we can do and when. City-level rankings and local rate detail live on the guides index.

Frequently asked questions

What is the best solar company in California in 2026?

We rank ourselves first, and we've disclosed that plainly — our case rests on owner-reviewed design, our own crews, line-item pricing, and correct 2026 incentive language. Sunrun is the honest answer if balance-sheet scale is your single overriding concern, and Tesla is the cleanest path to an integrated solar-plus-Powerwall system. The better question than "who is best" is which company is best for your utility, your roof, and your financing preference — and whether it will still exist when your workmanship warranty matters.

Which California solar companies have gone bankrupt?

SunPower Corporation filed Chapter 11 in August 2024, with Complete Solaria buying the assets and later adopting the name. Sunnova filed in June 2025 alongside solar lender Mosaic. Freedom Forever filed in Delaware on April 15, 2026 after installing nearly 2 GW across 35 states. Many "best solar companies" articles still recommend all three — always check the publish date.

What happens to my warranty if my solar installer goes out of business?

Manufacturer warranties on panels, inverters, and batteries generally survive independently and are honored by the manufacturer. What you lose is the installer's workmanship and labor warranty — and labor is the expensive half of most repairs. That's why financial durability belongs in your evaluation criteria, not just price.

Is there still a solar tax credit in California in 2026?

Not a residential federal one — the 30% credit expired December 31, 2025. The federal commercial clean-energy credit still exists and is claimed by whoever owns the system, which is why prepaid-lease structures can pass roughly 30% through as an upfront reduction with title transferring to you in year 6. California also has no statewide residential solar rebate, though SGIP battery incentives remain for income-qualified and fire-zone resiliency tiers.

How much do solar panels cost in California in 2026?

Roughly $2.40–$3.25 per watt installed, so about $24,000–$32,500 gross for a 10 kW system before financing structures. Adding a 13.5 kWh battery typically runs $13,500–$17,500. Under NEM 3.0, most investor-owned utility customers should price the battery in from the start rather than treating it as optional.

Should I use a national company or a local installer?

Nationals give you scale, statewide coverage, and lease and PPA options. Local installers generally give you better design specificity, faster service response, and someone who has permitted in your city before. The failures of the last two years were concentrated among finance-led national dealer networks rather than installation-led companies — which is a reason to ask any company how it actually makes money.

Next steps

If you want a design that starts from your actual utility rate and load profile rather than a template, book a free consultation — the owner reviews every design before it goes out, and there's no obligation. If you'd rather run numbers first, the savings designer models solar-only against solar-plus-battery for your utility.