Hawaii Solar Panel Laws: Your Rights & How to Exit a Solar Contract

Hawaii homeowners who sign solar contracts generally have at least 3 business days to cancel, under both the FTC Cooling-Off Rule and Hawaii Revised Statutes §481C-2 (Door-to-Door Sale). Hawaii adds an important wrinkle: under HRS §481C-2.5, if the seller did not hold the contractor license required by HRS Chapter 444, the cancellation period is generally extended to 30 calendar days. Beyond that window, Hawaii Revised Statutes Chapter 480 (Unfair and Deceptive Acts or Practices) may provide strong grounds for cancellation if misrepresentations were made. Hawaii's transition from traditional net metering to newer programs like Customer Grid Supply (CGS) and Smart Export has created significant issues for homeowners whose savings projections were based on now-unavailable rates. We always recommend consulting a qualified Hawaii attorney before taking action.

Right to Cancel / Cooling-Off Period in Hawaii

If you recently signed a solar contract in Hawaii, your most immediate protection is the cooling-off period.

Federal FTC Cooling-Off Rule (3 Business Days)

The FTC's Cooling-Off Rule (16 CFR Part 429) generally provides Hawaii homeowners with 3 business days to cancel a sale that occurred at your home or away from the seller's permanent place of business. Door-to-door solar sales are extremely common throughout Hawaii, on Oahu, Maui, the Big Island, and Kauai, making this rule frequently applicable given Hawaii's massive solar market.

Under this rule, the solar company is generally required to:

• Provide you with two copies of a cancellation form at the time of sale
• Inform you of your right to cancel within 3 business days
• Process your cancellation and refund any payments within 10 business days

Hawaii Door-to-Door Sales Protections (HRS Chapter 481C)

Hawaii Revised Statutes Chapter 481C is titled Door-to-Door Sale, and the operative right-to-cancel provision is HRS §481C-2. Under that section, a buyer in a door-to-door sale generally may cancel at any time prior to midnight of the third business day after the date of the transaction. HRS §481C-1 defines a business day as any calendar day except Saturday, Sunday, or a state or federal holiday, so weekends and holidays generally do not count against you.

Under HRS §481C-2, the seller generally must:

• Give you a completed receipt or contract carrying, in bold face type of at least 10 points, the statement that you may cancel prior to midnight of the third business day after the date of the transaction
• Attach two completed copies of a form captioned "NOTICE OF CANCELLATION", filled in with the seller's name and business address, the transaction date, and the date by which you may cancel
• Tell you orally, at the time you sign, that you have the right to cancel
• Refrain from including any waiver of your right to cancel in the contract or receipt

To cancel, you generally may mail or deliver a signed and dated copy of the cancellation notice, or any other written notice, to the seller's business address by the deadline. The statutory form contemplates that mailing is what matters, so send it in a way that proves the mailing date. On a valid cancellation, the seller generally has 10 business days to refund your payments, return any trade-in, and cancel any negotiable instrument or security interest. The chapter reaches both cash and credit transactions, so a cash purchase is generally covered, and the dollar thresholds in HRS §481C-1 are low enough that a residential solar sale is well above them.

Hawaii's 30-Day Extension for Unlicensed Sellers (HRS §481C-2.5)

This is the Hawaii-specific provision most homeowners are never told about. Under HRS §481C-2.5, if the door-to-door contract covers activities subject to HRS Chapter 444 (contractor licensing) and the seller does not hold the license that chapter requires, the cancellation period in HRS §481C-2 is generally extended to 30 calendar days. Solar installation is contracting work, so verifying the seller's license is one of the first things a Hawaii homeowner should do. See the licensing section below for how to check.

Hawaii Statute of Limitations

For breach of contract claims, the Hawaii statute of limitations is generally 6 years under HRS Section 657-1. For fraud, the limitation is typically 6 years from discovery. For HRS Chapter 480 claims, the limitation is generally 4 years after the cause of action accrues under HRS §480-24. Act promptly to preserve your legal options.

Hawaii Consumer Protection Laws Relevant to Solar

Hawaii Unfair and Deceptive Acts or Practices (HRS Chapter 480)

Hawaii Revised Statutes Chapter 480 prohibits unfair methods of competition and unfair or deceptive acts or practices in the conduct of trade or commerce. This is Hawaii's primary consumer protection statute and may apply to solar contract disputes. Under HRS 480, homeowners may have grounds for legal action if the solar company engaged in:

• Unfair or deceptive acts or practices: such as overstating energy production, misrepresenting savings under Hawaii's current solar compensation programs, or concealing material contract terms
• False advertising: including misleading representations about energy savings potential or the terms of solar programs available in Hawaii
• Misrepresentation of net metering or grid compensation: particularly important in Hawaii given the transition from NEM to newer programs

Under HRS §480-13, a prevailing consumer is generally awarded $1,000 or threefold the damages sustained, whichever is greater, plus reasonable attorney's fees and costs. If the plaintiff is an elder, the court may instead award $5,000 or threefold damages, whichever is greater, weighing the factors in HRS §480-13.5, which defines an elder as a consumer 62 years of age or older. This makes HRS Chapter 480 a powerful tool for Hawaii solar consumers.

Hawaii Contractor Licensing

Hawaii requires contractors to be licensed under HRS Chapter 444, through the Department of Commerce and Consumer Affairs (DCCA) Contractors License Board. Solar installations generally involve a C-60 (Solar Power Systems Contractor) license, which typically covers assembling and installing panels, batteries, controls, and related low-voltage DC wiring, and a C-13 electrical contractor license for electrical work beyond low-voltage DC. If the installer was not properly licensed, this may provide grounds for contract rescission and additional claims, and under HRS §481C-2.5 it generally extends the door-to-door cancellation window to 30 calendar days.

Federal Truth in Lending Act (TILA)

If your solar agreement involves financing, TILA provides additional protections including potential rescission rights.

Solar-Specific Regulations in Hawaii

Net Metering and Grid Compensation in Hawaii

Hawaii's solar compensation landscape has undergone dramatic changes. Understanding this history is critical for evaluating whether the savings projections you were given were accurate:

• Traditional Net Energy Metering (NEM): Hawaii was one of the first states to implement net metering. However, Hawaiian Electric closed its traditional NEM program to new customers in 2015 due to high solar penetration
• Customer Grid Supply (CGS): replaced NEM for new customers, offering a lower export credit rate than the retail rate
• Customer Self-Supply (CSS): requires customers to use all solar generation on-site with no grid export compensation
• Smart Export: a newer program with time-of-use export rates that may provide compensation for exported energy at rates that vary by time of day

This evolving compensation landscape means that savings projections made at the time of sale may no longer be accurate if they assumed a compensation rate that is no longer available. This is one of the most common sources of solar contract disputes in Hawaii.

Hawaii Public Utilities Commission (PUC)

The Hawaii PUC regulates Hawaiian Electric (HECO, MECO, and HELCO) and has significant authority over distributed solar policies:

• Solar compensation programs: the PUC determines the programs available for new solar customers and the associated compensation rates
• Interconnection queue: Hawaii has experienced significant interconnection backlogs, which can delay when your system begins generating credits
• Grid capacity constraints: some circuits in Hawaii have reached solar hosting capacity limits, which can affect interconnection

Hawaii Solar Access Laws

Hawaii has strong solar access protections. HRS Section 196-7 generally prohibits covenants and HOA restrictions from unreasonably restricting solar installations. Given Hawaii's commitment to 100% renewable energy by 2045, solar access is well-protected in the state.

Hawaii Tax Credits

Hawaii has historically offered a state solar tax credit (HRS Section 235-12.5) in addition to the federal ITC. The availability and amount of the state tax credit may have changed. If the solar company misrepresented available tax credits, this could support a consumer protection claim.

Common Solar Contract Issues in Hawaii

How to Exit a Solar Contract in Hawaii. Step by Step

Step 1: Gather Your Documents

• Your original solar contract (lease, PPA, or loan agreement)
• Marketing materials and written estimates, particularly the savings projections
• Documentation of which compensation program (NEM, CGS, CSS, Smart Export) your system is enrolled in
• Electricity bills from before and after installation
• Correspondence with the solar company and Hawaiian Electric
• Actual energy production data

Step 2: Determine Your Cancellation Window

• Within 3 business days (door-to-door sale): Cancel before midnight of the third business day after the transaction date. Mail or deliver a signed, dated written cancellation to the seller's business address, and use certified mail with return receipt so you can prove the mailing date. Reference the FTC Cooling-Off Rule and HRS §481C-2
• Within 30 calendar days if the seller was unlicensed: If the seller lacked the HRS Chapter 444 contractor license, HRS §481C-2.5 generally extends the cancellation period to 30 calendar days. Verify licensing with the DCCA Contractors License Board first
• Before installation: Check for pre-installation cancellation clause. Pre-installation cancellation guide →
• After installation: Proceed to Steps 3-5

Step 3: Review Your Contract and Compensation Program

• Verify your compensation program: confirm which HECO program (NEM, CGS, CSS, Smart Export) you're enrolled in vs. what was promised
• Termination clause: check for early termination with buyout
• Performance guarantees: grounds for relief if underperforming
• Transfer provisions: options if selling your home

Step 4: Evaluate HRS 480 Claims

Consult a Hawaii attorney about potential claims. Common bases in Hawaii include:

• Savings projections based on unavailable NEM rates
• Failure to disclose which compensation program you'd be enrolled in
• Failure to disclose potential interconnection delays
• Overstated energy production estimates
• Misrepresented tax credits or incentives
• Unlicensed installation

Step 5: Send a Formal Demand

Your attorney will send a demand letter. The $1,000 statutory minimum, treble damages, and attorney's fees under HRS §480-13, and the higher $5,000 elder minimum where it applies, generally create strong incentive for companies to negotiate.

Step 6: Consider Professional Exit Services

Compare solar cancellation companies →

Hawaii Consumer Protection Agencies & Resources

Frequently Asked Questions About Hawaii Solar Panel Laws