California Solar Installation Scams: NEM 3.0 Confusion and Contractor Fraud

Disclaimer: This article is for educational purposes and does not constitute legal advice. Consult a California-licensed attorney for advice about your specific situation.

California has the largest residential solar market in the United States, with over 1.3 million solar rooftops. But the transition to NEM 3.0 (Net Billing Tariff), combined with the state's massive contractor landscape, has created a perfect environment for installation scams, unlicensed operators, and predatory sales tactics. This guide exposes the most common California solar installation scams and explains how to verify your contractor and protect your investment.

California's Massive Solar Market + NEM 3.0 Transition

Why the Transition Created Chaos

The California Public Utilities Commission (CPUC) approved the Net Billing Tariff (NEM 3.0) in December 2022, with an effective date of April 15, 2023. This decision fundamentally changed how solar homeowners are compensated for exporting electricity to the grid:

Feature	NEM 2.0	NEM 3.0 (Net Billing)
Export compensation	Full retail rate (~$0.30/kWh)	Avoided cost (~$0.04-$0.08/kWh)
Annual true-up	Yes — reconcile once per year	Yes, but with reduced credits
Battery incentive	Optional	Essentially required for value
Time-of-use rates	Applied	Critical — export during peak hours matters more
Grandfathering	20 years from interconnection	20 years for NEM 2.0 systems

How Scammers Exploit NEM 3.0 Confusion

Scam Tactic	The Lie	The Reality
False grandfathering	"You can still get NEM 2.0 rates if you sign today"	NEM 2.0 deadline passed April 2023
Inflated savings	Using NEM 2.0 export rates in savings projections	Those rates no longer apply to new systems
Battery pressure	"Solar is worthless without batteries under NEM 3.0"	Solar still provides value; batteries enhance it
Deadline scams	"NEM 3.0 credits are ending"	NEM 3.0 is the current system — not ending
Utility buyback lies	"PG&E will buy your excess at retail rates"	Export compensation is now at avoided cost rates

NEM 3.0 Exploitation in Detail

Misrepresented Savings Projections

The most damaging NEM 3.0 scam involves salespeople presenting savings calculations based on outdated NEM 2.0 export rates:

Calculation Component	NEM 2.0 Assumption (Fraudulent)	NEM 3.0 Reality
Export value	$0.30/kWh	$0.04-$0.08/kWh
Annual credit value	$2,400 (8,000 kWh exported)	$320-$640 (8,000 kWh exported)
Payback period	5-7 years	8-12+ years without battery
Monthly savings	$200+	$80-$120 without battery management

Red flag: If a salesperson shows you savings of $200+/month without discussing battery storage and time-of-use rate optimization under NEM 3.0, their projections are likely based on outdated NEM 2.0 assumptions.

Urgency Pressure Tactics

What They Say	What They Mean
"NEM 3.0 is changing again — sign before rates get worse"	No pending changes to NEM 3.0
"PG&E is eliminating solar credits entirely"	Net billing continues under NEM 3.0
"You missed NEM 2.0, but there's a transitional program"	No transitional program exists
"CPUC is about to vote on ending net metering"	Mischaracterization of routine regulatory proceedings

False Savings Guarantees

Some California solar companies offer "production guarantees" that sound comprehensive but contain significant exclusions:

Guarantee covers production only, not financial savings
Savings depend on export rates which are now much lower under NEM 3.0
Battery performance is not guaranteed despite being key to savings
Rate changes by utilities void most financial guarantees
Guarantee remedies are typically system adjustments, not cash payments

Unlicensed Contractor Scams

The CSLB License Requirement

In California, solar installations require a contractor licensed by the Contractors State License Board (CSLB). The relevant license classifications are:

License Type	Classification	What It Covers
C-46	Solar Contractor	Solar photovoltaic systems specifically
C-10	Electrical Contractor	General electrical including solar
B	General Building Contractor	Can oversee solar as part of larger project

How Unlicensed Operators Work

Method	How It Works	Why It's Dangerous
Fake license numbers	Provide a valid-looking but fabricated number	CSLB lookup reveals the fraud
Borrowed licenses	Use another contractor's number without authorization	The named contractor may be unaware
Expired licenses	Operate on a license that has lapsed	No current insurance or bonding
Wrong classification	Hold a license but not C-46 or C-10	Not qualified for solar work
Out-of-state licenses	Hold a valid license in another state	Not valid for California work
Subcontractor fraud	Licensed GC uses unlicensed subs	Workers may lack training and insurance

Consequences of Using an Unlicensed Installer

No building permits obtained (or fraudulent permits filed)
Code violations that can require system removal
No warranty backing — manufacturer warranties may require licensed installation
Insurance denial — your homeowners insurance may not cover damage from unlicensed work
Title and resale issues — unpermitted work must be disclosed when selling
Safety hazards — improper wiring creates fire and electrocution risks

Shoddy Installation and Code Violations

California Building Code Requirements

California has some of the strictest building codes in the nation for solar installations:

Requirement	Standard	Common Violations
Title 24 compliance	California Building Standards Code	Non-compliant equipment, improper labeling
Fire setbacks	CSFM (California State Fire Marshal) guidelines	Panels too close to roof edges or ridgelines
Structural loading	ASCE 7 and local amendments	Roof cannot support system weight
Electrical codes	California Electrical Code (CEC)	Improper wiring, missing disconnects
Grounding	CEC requirements	Inadequate equipment grounding
Rooftop access	Firefighter access pathways	Blocked ventilation or access paths

Common Installation Problems

Problem	What Happens	Long-Term Consequence
Roof penetrations not sealed	Improper flashing around mounts	Water damage, mold, structural rot
Oversized systems	System exceeds panel or inverter capacity	Safety hazards, code violations, reduced production
Improper wiring	Wrong gauge, no conduit, exposed wires	Fire risk, code violations, electrocution hazard
Missing disconnects	No rapid shutdown or AC disconnect	Firefighter safety violations, failed inspection
Wrong equipment	Non-UL listed or non-CEC approved	Failed inspection, warranty voided
No permits pulled	Installation without building/electrical permit	Illegal work, resale problems, insurance issues

For more on installation problems, see our solar installation problems guide.

PACE Lien Fraud in California

What Is PACE?

Property Assessed Clean Energy (PACE) programs allow homeowners to finance solar and energy efficiency improvements through a special property tax assessment. In California, companies like Ygrene and Renew Financial (formerly CaliforniaFIRST) administer these programs.

How PACE Becomes Predatory

PACE Feature	Consumer Risk
Lien on property	Assessment is a senior lien — ahead of your mortgage
No income verification	Homeowners can be approved regardless of ability to pay
Foreclosure risk	Default on PACE payments can lead to tax foreclosure
No standard underwriting	Unlike mortgages, PACE doesn't require ability-to-repay analysis
Transfer with sale	Lien stays with the property, complicating resale
Inflated project costs	PACE contractors may charge above-market prices

The Ygrene and Renew Financial Problem

California homeowners have reported the following issues with PACE program administrators:

Door-to-door PACE sales: Contractors canvas neighborhoods pushing PACE-funded solar
Inflated assessments: System costs 30-50% above market rates
Confusion about repayment: Homeowners don't understand it's a tax assessment, not a loan
Predatory targeting: Low-income and elderly communities disproportionately affected
Contractor kickbacks: Some PACE programs pay contractor incentives that drive up costs

PACE Foreclosure Risk

While PACE foreclosure is relatively rare, the risk is real:

PACE assessments are collected with property taxes
If you fail to pay your property taxes, the PACE assessment is included
Unpaid taxes can result in a tax sale of your property
Senior lien status means PACE gets paid before your mortgage

For more, see our guides on PACE foreclosure risk and PACE lien mortgage problems.

California Laws That Protect You

Business & Professions Code

Division 3, Chapter 9 (Contractors) regulates contractor licensing:

Requires valid CSLB license for solar work
Prohibits unlicensed activity (criminal misdemeanor)
Requires proper insurance and bonding
Mandates written contracts for projects over $500
Requires change orders to be in writing

Consumer Legal Remedies Act (CLRA)

California Civil Code Section 1750 et seq. provides powerful consumer protections:

Protection	What It Provides
Prohibits deceptive acts	False advertising, fraudulent business practices
Minimum damages	$1,000 even without proving actual damages
Attorney fees	Recoverable for prevailing plaintiffs
Punitive damages	Available in some cases
Injunctive relief	Court can order the company to stop the practice
Pre-suit notice	30-day notice required before filing suit

California Civil Code — Home Solicitation Sales

Protection	Details
3-day right to cancel	Cannot be waived
Written notice	Must be mailed by midnight of 3rd day
Full refund	Within 10 days of cancellation
Spanish disclosures	Required if sale conducted in Spanish

Solar-Specific Statutes

SB 1000 requires solar companies to provide the California Solar Consumer Protection Guide before contract signing, available in English, Spanish, Chinese, Tagalog, Vietnamese, and Korean. Failure to provide this guide is a violation of California law.

How to Verify a California Solar Contractor

Step-by-Step Verification

Step 1: CSLB License Lookup

Visit cslb.ca.gov
Click "Check License Number" or "Check a License"
Enter the contractor's name or license number
Verify:
- License status is Active (not expired, suspended, or revoked)
- Classification includes C-46 (Solar) or C-10 (Electrical)
- Bond is current ($15,000 contractor bond minimum)
- Workers' compensation insurance is current (if they have employees)
- No disciplinary actions or complaints

Step 2: Insurance Verification

Request a Certificate of Insurance directly from the contractor's insurance company (not a copy from the contractor). Verify:

Insurance Type	Minimum Recommended
General liability	$1,000,000 per occurrence
Workers' compensation	Required for employees
Commercial auto	For company vehicles
Umbrella/excess	$2,000,000+ for larger projects

Step 3: Reference Check

Ask for 3+ local references with completed installations
Visit a completed project if possible
Check online reviews on Google, Yelp, and BBB
Search for complaints at cslb.ca.gov
Verify the company has a physical California address (not just a PO Box)

Step 4: Permit Verification

After installation begins:

Confirm permits were pulled with your local building department
Verify the permit lists the licensed contractor (not a different company)
Attend the final inspection if possible
Keep copies of all permits and inspection reports

For more on verifying installers, see our solar installer legitimacy check guide.

FAQ

How do I check if a California solar contractor is licensed?

Visit the Contractors State License Board website at cslb.ca.gov and click "Check a License." Enter the contractor's name or license number. Confirm the license is active, the classification includes C-46 (Solar Contractor) or C-10 (Electrical Contractor), and there are no disciplinary actions. Also verify that the license holder's name matches the company you're dealing with — some unlicensed operators use licensed contractors' numbers without authorization.

What is NEM 3.0 and how does it affect my solar savings?

NEM 3.0 (also called the Net Billing Tariff) took effect on April 15, 2023, and dramatically reduced the compensation rate for electricity you export to the grid. Under NEM 2.0, you received near-retail rates (~~$0.30/kWh). Under NEM 3.0, export compensation dropped to "avoided cost" rates (~~$0.04-$0.08/kWh). This means solar savings are now heavily dependent on self-consumption and battery storage to shift usage to peak hours. Any salesperson using NEM 2.0 rates in savings projections is presenting fraudulent information.

What should I do if my California solar installation has code violations?

First, document all violations with photos and written descriptions. File a complaint with the CSLB at cslb.ca.gov. Contact your local building department to report unpermitted or non-compliant work. If the violations involve safety hazards (exposed wiring, improper grounding, fire setbacks), contact your local fire marshal. For financial damages, consult a California attorney about filing a claim under the Consumer Legal Remedies Act (CLRA) or Business & Professions Code. Keep all records of communications with the contractor and government agencies.

Are PACE liens dangerous for California homeowners?

PACE liens can pose significant risks. The assessment becomes a senior lien on your property — ahead of your mortgage — and is collected with your property taxes. If you fail to pay, you face potential tax foreclosure. PACE programs historically required no income verification or ability-to-repay analysis, meaning homeowners could be approved for assessments they couldn't afford. Before agreeing to PACE financing, understand that it's not a traditional loan — it's a property tax obligation that stays with the home even if you sell. Read our guides on PACE foreclosure risk and PACE lien mortgage problems for more details.

Related Resources:

Need Help With California Solar Fraud?

Got scammed? Get help from our team today. We track California solar installation complaints and can connect you with CSLB-savvy attorneys.

This guide is for educational purposes and does not constitute legal advice. Consult a California-licensed attorney for advice about your specific situation.

Last updated: 2026-05-02