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New Hampshire Solar Contract Cancellation

Trying to Get Out of a Solar Contract in New Hampshire?

If the promised savings do not match your Eversource, Liberty, Unitil, or New Hampshire Electric Cooperative bills, the salesperson described net metering as if every exported kilowatt-hour erased the full retail rate, your competitive supplier or community-power arrangement changed the math, the system underperforms, financing is more expensive than expected, the installer stopped responding, or solar is complicating a home sale, Solar Exit New Hampshire can help you review the contract, utility records, interconnection documents, financing, and sales claims together.

  • Solar purchases, loans, leases, and power purchase agreements
  • New Hampshire net-metering and export-credit issues
  • Eversource, Liberty, Unitil, and NHEC billing questions
  • Three-business-day home-solicitation cancellation rights
  • REC ownership, community power, and savings assumptions
  • Home-sale, payoff, transfer, UCC, and refinance concerns
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Find the Help You Need

Jump Directly to the Part of Your Solar Problem That Matters Most

New Hampshire solar disputes often turn on which net-metering tariff applies, whether the homeowner uses default service or another electricity supplier, utility interconnection records, home-solicitation cancellation rights, financing, and whether the sales pitch overstated the value of exported electricity. Use the shortcuts below to jump directly to the issue you need to review.

Common New Hampshire Solar Problems

Does Any of This Sound Familiar?

Solar problems do not always begin and end with the installer. The salesperson, dealer, lender, loan servicer, electric utility, equipment manufacturer, and installation contractor may all play different roles.

You Want to Cancel a Recently Signed New Hampshire Solar Contract

New Hampshire home-solicitation sales of $150 or more generally carry a three-business-day cancellation right when the solicitation and sale occur somewhere other than the seller's permanent place of business. The contract or receipt must include the required cancellation notice, and cancellation can be made by written notice or by returning merchandise in person within the period.

  • Find the signed agreement and cancellation notice
  • Confirm where and how the sale was solicited
  • Save every cancellation email, letter, text, and call record

Your Net-Metering Credits Do Not Match the Sales Pitch

New Hampshire does not treat every net-metered customer exactly the same. Older standard-tariff customers and newer alternative-tariff customers can receive different treatment, and certain charges remain non-bypassable. A proposal that simply called net metering a full retail one-for-one credit may have left out important details.

  • Identify the interconnection date and tariff
  • Compare imported and exported kWh on the bill
  • Separate credited charges from non-bypassable charges

Your Electricity Supplier or Community-Power Plan Changed the Solar Math

New Hampshire allows competitive electricity suppliers and municipal or county aggregators to determine certain supply terms, prices, and credits for exported generation. That means a homeowner can have a valid solar interconnection and still see different economics depending on who supplies the electricity.

  • Identify the electric distribution utility
  • Identify the current electricity supplier or community-power program
  • Review the supplier contract for solar or net-metering terms

The Installer Never Completed Interconnection or Permission to Operate

New Hampshire net-metering rules require the customer-generator to have permission to operate and, when applicable, an interconnection agreement. Utilities such as Eversource also require the interconnection process and final completion steps before the generator may operate in parallel with the grid.

  • Get the interconnection application
  • Confirm whether permission to operate was issued
  • Check for final inspection and meter-installation records

The Salesperson Promised Extra Value From RECs, Tax Benefits, or Incentives

New Hampshire law says renewable energy certificates remain the property of the customer-generator until sold or transferred, but actual REC value depends on qualification, metering, registration, and market arrangements. Property-tax relief is also local rather than automatic statewide relief for every homeowner.

  • Identify who owns the RECs under the contract
  • Verify any REC registration or monitoring arrangement
  • Check whether the municipality has adopted the solar property-tax exemption

How It Works

Start With a Clear Review of Your Situation

You do not need to know the correct legal, financial, or utility terminology. Tell us what happened and provide the documents you have.

01

Tell Us What Happened

Start with the problem in plain language. You do not need to know whether it is mainly a net-metering issue, supplier issue, cancellation problem, financing dispute, REC question, or home-sale issue.

02

Match the Deal to the New Hampshire Rules

We compare the proposal, signed agreements, utility records, interconnection status, net-metering tariff, electricity supplier, financing, and timeline against the New Hampshire-specific framework.

03

Identify the Practical Next Steps

The next step may involve the seller, installer, utility, electricity supplier, Department of Energy, Public Utilities Commission, Consumer Protection Bureau, lender, title company, electrician, tax professional, attorney, or another qualified professional depending on the facts.

Why New Hampshire Solar Problems Are Different

New Hampshire Solar Economics Depend on the Net-Metering Tariff, the Utility, and Who Supplies Your Electricity

New Hampshire has a long-running net-energy-metering framework, but the details are more complicated than a simple one-for-one retail credit. Older customer-generators can remain under a standard tariff, while later projects generally operate under an alternative net-metering structure.

For a typical residential system, the utility records matter because netting and credits can treat supply, transmission, distribution, and non-bypassable charges differently. The homeowner's chosen competitive electricity supplier or community-power aggregation can add another layer because supply terms for exported generation may differ from default utility supply.

New Hampshire also preserves customer ownership of renewable energy certificates unless they are sold or transferred. That means a sales pitch that included REC income or claimed ownership of environmental attributes should be checked against the actual contract and registration records.

100 kWCurrent small customer-generator threshold under New Hampshire net-metering rules
3 business daysGeneral cancellation period for qualifying home-solicitation sales
2040Current statutory end date for standard net-metering tariffs before transition to tariffs then in effect
Local optionSolar property-tax exemption depends on municipal adoption

Start With the Electric Utility

New Hampshire Has Multiple Utility Territories, and the Account Records Matter

The statewide net-metering law and rules provide the framework, but interconnection, tariff administration, meter records, and bill presentation still depend on the serving utility. New Hampshire Electric Cooperative also operates under cooperative terms that homeowners should review directly.

Eversource Energy

Eversource provides a New Hampshire interconnection process and net-metering program for eligible distributed generation. Its residential bill treatment distinguishes imported energy, exported energy, net purchases, and certain charges that are not offset by netting.

Liberty and Unitil

Liberty and Unitil customers are also subject to the New Hampshire statutory and regulatory net-metering framework, but should review the current utility tariff, interconnection approval, and bill credit presentation for the actual account.

New Hampshire Electric Cooperative

NHEC members should review the cooperative's own Terms and Conditions and rate schedules. NHEC offers net metering and also has optional net-metering time-of-day rates, which can create a different savings profile from investor-owned utility service.

Why this matters:New Hampshire review question: Which utility serves the home, which net-metering tariff applies, and who is actually supplying the electricity?

How New Hampshire Net Metering Works

The Difference Between Standard and Alternative Net Metering Can Change the Value of a Solar Proposal

New Hampshire's current rules distinguish standard net-metering customers from customers under the alternative tariff. Most homeowner disputes do not require mastering every tariff line, but the distinction is important because the credit structure can change the actual savings.

Standard Net-Metering Customers

The current En 900 rules define the standard tariff as the legacy structure available to customer-generators that received a utility net-metering capacity allocation before September 1, 2017. Current law preserves those standard tariffs until December 31, 2040, after which customers transition to tariffs then in effect.

Alternative Net-Metering Customers

Later customer-generators generally fall under the alternative tariff structure developed through Commission Order 26,029 and subsequent orders. For small customer-generators, non-bypassable charges are based on gross electricity received from the grid, while credits do not necessarily offset every component of the retail bill.

Excess Credits Can Carry Forward or Be Paid Under Certain Conditions

New Hampshire law provides mechanisms for carrying forward surplus credits and for certain payments of accrued monetary credit balances. The exact treatment depends on tariff status, utility, and the customer's electricity supply arrangement.

The Supplier Can Matter Too

Competitive electricity suppliers and municipal or county aggregators can establish terms and prices for generation supply and exported generation. A solar proposal that assumed utility default-service treatment may not match a homeowner who later uses another supplier or community-power program.

For a New Hampshire Net-Metering Dispute, Review These Items

  • Electric distribution utility
  • Interconnection application and permission-to-operate date
  • Standard or alternative net-metering tariff
  • Current electricity supplier or community-power program
  • Gross purchases, net purchases, and exported electricity
  • Non-bypassable charges on the bill
  • Accrued monetary credits or carryforward credits
  • Sales proposal assumptions about retail-rate offset

Competitive Supply and Community Power

Solar Savings Can Change When the Electricity Supplier Changes

New Hampshire homeowners can receive electric distribution service from one utility while purchasing electricity supply from another supplier or participating in a municipal or county aggregation. That structure matters for solar because the state statute allows those suppliers and aggregators to determine certain terms, conditions, prices, and credits for exported generation.

A homeowner may therefore have a properly functioning solar system but still see a different financial result from the sales proposal if the proposal assumed default utility supply and the homeowner later enrolled in a competitive supplier or community-power program.

This is especially important when a salesperson showed a single projected utility bill without clearly identifying which supply rate and which net-metering credit assumptions were used.

For a Supplier or Community-Power Issue, Review These Items

  • Electric distribution utility
  • Current electricity supplier
  • Community-power aggregation enrollment
  • Supplier contract or aggregation terms
  • Net-metering treatment of exported generation
  • Sales proposal assumptions about supply rates
  • Any supplier change after solar installation

Renewable Energy Certificates

New Hampshire RECs Can Have Value, but Ownership and Registration Need to Be Verified

New Hampshire law states that renewable energy certificates associated with a customer-generator remain the property of the customer-generator until the credits are sold or transferred. That can make REC ownership an important contract-review issue.

A rooftop-solar salesperson may have included REC income in the economics, assigned the RECs to another party, or said the homeowner would receive extra value without explaining registration and monitoring requirements. Eversource, for example, explains that qualifying rooftop systems may be able to create and sell RECs through the New England tracking system.

The practical question is not simply whether New Hampshire has RECs. It is whether this particular homeowner owns them, whether the system is qualified and monitored, and whether the proposal used a realistic REC value.

For a New Hampshire REC Issue, Review These Items

  • Contract language assigning environmental attributes or RECs
  • System qualification and monitoring arrangements
  • NEPOOL GIS or aggregator records if applicable
  • Any REC meter or monitoring equipment
  • REC income assumptions in the sales proposal
  • Whether the homeowner transferred the RECs to the installer, utility, or another party

New Hampshire Consumer Protections

Solar Sales Are Still Subject to New Hampshire Consumer-Protection Law

New Hampshire's Consumer Protection Act prohibits unfair or deceptive business practices. A solar dispute may involve representations about savings, utility rates, incentives, production, financing, cancellation rights, or the identity of the company actually responsible for the work.

For qualifying home-solicitation sales, New Hampshire also requires a clear written cancellation notice and provides specific refund and restoration rights when the buyer cancels during the statutory period.

The New Hampshire Department of Justice Consumer Protection and Antitrust Bureau accepts complaints involving businesses that misrepresent services or products, fail to provide promised services, or engage in unfair or deceptive practices.

For a New Hampshire Sales-Practice Problem, Review These Items

  • Written proposal and savings illustration
  • Utility-rate and net-metering claims
  • Statements about tax credits, rebates, or RECs
  • Production guarantees or estimates
  • Cancellation notice and contract copy
  • Financing terms and payment schedule
  • Sales emails, texts, advertisements, and recorded calls
A New Hampshire solar review should compare what was promised with what the signed documents, utility tariff, and actual bills show.

New Hampshire Cancellation Rights

A Qualifying Home-Solicitation Solar Sale Generally Has a Three-Business-Day Cancellation Window

New Hampshire defines a home-solicitation sale as a sale of goods or services priced at $150 or more when the seller or representative solicits and sells somewhere other than the seller's permanent place of business. That can cover many in-home solar sales, although the exact facts matter.

At the time of a qualifying home-solicitation sale, the seller must provide a completed receipt and contract copy containing a conspicuous statement that the buyer may cancel any time before midnight of the third business day after the transaction date.

The statute also requires the seller, after a valid cancellation, to return payments and certain other property within 15 days. If work physically altered the property during the cancellation period, the statute provides additional refund or restoration protections.

What to Look For

  • Date the agreement was signed
  • Where the sale was solicited and completed
  • Whether the contract contains the statutory cancellation notice
  • Any written cancellation notice or in-person return
  • Whether work started during the cancellation period
  • Any deposit, note, or evidence of indebtedness given to the seller
  • Whether the seller returned payments after cancellation
New Hampshire shorthand: for a qualifying home-solicitation sale, the cancellation deadline is generally midnight of the third business day after the transaction.

Electrical Licensing and Permits

New Hampshire Solar Interconnection Still Requires Proper Electrical Work, Inspection, and Utility Approval

New Hampshire licenses electricians under RSA 319-C. For a grid-connected solar system, the electrical scope, inspection, local permit process, and utility interconnection all matter even though the solar sales company and electrical contractor may be different businesses.

Eversource states that after installation a Certificate of Completion must be submitted and signed by the town electrical inspector or, if the town has no electrical inspector, by a New Hampshire licensed electrician. The generator may not operate until the interconnection steps are completed.

New Hampshire lawmakers studied broader residential builder registration in 2026, but the enacted bill created a study committee rather than a new statewide builder registration system. Homeowners should therefore identify the actual licensed trade professional responsible for electrical work instead of assuming the solar salesperson holds a statewide contractor license.

A New Hampshire Residential Solar Project Can Involve

  • Solar salesperson or marketing company
  • Solar retailer or EPC company
  • New Hampshire licensed electrician
  • Local electrical or building inspector
  • Electric distribution utility
  • Competitive electricity supplier or community-power aggregation
  • Finance company or loan servicer
  • Third-party owner for a lease or PPA
  • REC aggregator or independent monitor
  • Title company or mortgage lender during a sale or refinance

These roles may be split among several companies, so the homeowner should identify who sold the deal, who performed the electrical work, who owns or finances the equipment, and who controls the utility and REC records.

Financing and Savings Claims

A New Hampshire Solar Loan Can Look Affordable Only If the Utility Assumptions Were Accurate

Solar financing disputes often begin when the fixed loan payment stays the same but the electric bill does not fall as much as projected. In New Hampshire, that gap can be caused by system underproduction, an oversized loan, an incorrect net-metering assumption, non-bypassable charges, or a change in electricity supplier.

A proposal should therefore be reconstructed from the bottom up: system price, dealer fees, interest rate, payment schedule, expected annual production, expected household usage, applicable net-metering tariff, supply rate, and any assumed REC or tax benefit.

If the salesperson represented a loan as equivalent to replacing the electric bill, compare that claim with the actual utility tariff and the signed financing agreement rather than relying on the proposal headline.

  • Cash system price and financed system price
  • Dealer or origination fees
  • Interest rate and payment schedule
  • Expected annual solar production
  • Household annual electricity usage
  • Net-metering tariff assumptions
  • Competitive supplier or community-power assumptions
  • REC, rebate, or tax assumptions
  • Actual post-solar electric bills
A good New Hampshire financing review separates the solar payment from the utility bill and checks whether the proposal used the correct net-metering and supply assumptions.

Tax and Incentive Issues

New Hampshire Property-Tax Relief Is Local, and Incentive Claims Should Be Verified Before They Are Counted as Savings

New Hampshire does not automatically exempt every residential solar system from property tax statewide. RSA 72:62 allows each city or town to adopt a solar energy systems exemption, so the homeowner must check the municipality that taxes the property.

The exemption can apply to the increase in assessed value attributable to the solar system when the municipality has adopted it, but homeowners should not assume the exemption exists simply because the property is in New Hampshire.

Any sales claim involving a state rebate, federal tax credit, REC income, or other incentive should be verified against the official program rules that applied when the system was purchased and placed in service.

  • Municipality and local solar property-tax exemption status
  • Any state rebate or grant claimed in the proposal
  • Federal tax-credit assumptions
  • REC income assumptions
  • Whether the contract assigns tax or REC benefits to another party
  • Whether the homeowner actually qualified for the claimed benefit
New Hampshire tax point: the solar property-tax exemption is a municipal option, not an automatic statewide exemption for every solar home.

Selling or Refinancing With Solar

New Hampshire Net-Metering Status Can Survive a Home Sale, but the Solar Contract and Financing Still Need to Be Resolved

New Hampshire net-metering rules state that a sale or transfer of the net-metered facility or the property generally does not change the grandfathered net-metering terms, so long as the facility is not moved. That can be valuable, but it does not automatically resolve a solar loan, lease, PPA, or UCC issue.

The homeowner should separately determine who owns the system, whether a third party must approve a transfer, whether a loan must be paid off, and whether a UCC filing needs to be addressed for the title company or mortgage lender.

A UCC filing is a secured-transaction record involving personal-property collateral. It should not automatically be described as a mortgage lien on the entire house, but it can still create practical closing or refinance requirements that need to be resolved.

  • Owned, financed, leased, or PPA structure
  • Grandfathered net-metering tariff status
  • Transfer or assumption requirements
  • Payoff or buyout quote
  • UCC financing statement or termination request
  • What the buyer, title company, or mortgage lender requires
  • Whether the solar facility will remain at the property

If the Solar Company Closed

The Solar Contract, Utility Account, Financing, and Equipment Can Outlast the Company That Sold the System

If the installer or seller closed, stopped answering, or transferred the account, the homeowner should still gather the signed agreement, financing records, interconnection approval, utility bills, monitoring data, equipment warranties, and any assignment or servicing notices.

New Hampshire net-metering rights attach to the qualifying customer-generator and utility arrangement, not simply to the continued existence of the original installer. Likewise, a loan, lease, or PPA may continue to be serviced by another company even if the original seller disappeared.

  • Who sold the system
  • Who installed the system
  • Who currently services the loan, lease, or PPA
  • Who owns the equipment and RECs
  • Whether utility net-metering remains active
  • Who provides equipment and workmanship warranty support
  • Any company closure, assignment, or servicer notices

Complaint Routing

Who Handles What in New Hampshire?

A New Hampshire solar dispute may involve deceptive sales, a regulated utility, a competitive supplier, electrical licensing, net-metering administration, or a UCC filing. The right complaint path depends on the problem.

Deceptive sales, misrepresentation, cancellation, or business-practice issueNew Hampshire Department of Justice Consumer Protection and Antitrust Bureau

The Consumer Protection and Antitrust Bureau accepts complaints involving businesses that misrepresent products or services, fail to provide promised services, or engage in unfair or deceptive practices.

Important: The bureau protects consumers and enforces state law, but it is not a substitute for private legal advice in every contract dispute.

Official Resource
Regulated utility, tariff, billing, or net-metering complaintNew Hampshire Department of Energy Consumer Services

New Hampshire law requires utility complaints to begin through the Department of Energy consumer-services process before a formal complaint proceeds further to the Public Utilities Commission.

Important: The utility complaint process does not decide every private solar sales, financing, or workmanship dispute.

Official Resource
Net-metering rule or customer-generator disputeNew Hampshire Department of Energy / Public Utilities Commission

The En 900 framework governs net metering and provides complaint and investigation procedures for customer-generators, utilities, and other interested persons.

Important: Jurisdiction depends on whether the dispute concerns the regulated utility or net-metering rules rather than a private contract.

Official Resource
Electrical licensing or regulated trade issueNew Hampshire Office of Professional Licensure and Certification

New Hampshire licenses electricians and other regulated professionals. A complaint involving licensed electrical work should be routed through the applicable professional-licensing process.

Important: Professional discipline does not automatically produce private monetary recovery for a homeowner.

Official Resource
UCC filing, secured-interest, or termination record questionNew Hampshire Secretary of State UCC

The Secretary of State maintains New Hampshire UCC filings and search requests, which can matter in a sale, refinance, or collateral dispute.

Important: The filing office maintains the record but does not resolve the underlying solar contract dispute.

Official Resource
Current Status

Do Not Assume Every New Hampshire Solar Customer Gets the Same Credit

Standard and alternative net-metering tariffs differ, and competitive suppliers or community-power aggregations can affect generation-supply credit terms.

Verify With Official Source

What We Review

Your Complete Solar Situation

  • Solar contract cancellation timing and notices
  • Eversource, Liberty, Unitil, or NHEC billing issues
  • Standard vs alternative net-metering questions
  • Competitive electricity supplier or community-power issues
  • Sales pitch and contract mismatch
  • REC ownership or income assumptions
  • System underproduction
  • Interconnection or permission-to-operate problems
  • Payment increased / financing issues
  • Installer delay or abandonment
  • Company closure and warranty issues
  • Tax or incentive assumptions
  • Local property-tax exemption questions
  • Home sale, transfer, payoff, and refinance issues
  • UCC filing questions
  • Roof and repair concerns

Prepare the Record

Documents to Gather

  • Signed solar purchase, loan, lease, or PPA agreement
  • Proposal, quote, and savings estimate
  • Home-solicitation cancellation notice
  • Any cancellation email, letter, text, or delivery record
  • Interconnection application
  • Permission-to-operate or final utility approval
  • Utility tariff or net-metering enrollment information
  • Monthly utility bills before and after solar
  • Competitive supplier or community-power agreement
  • System production monitoring reports
  • REC ownership, registration, monitoring, or aggregator records
  • Financing disclosure and payment history
  • Marketing emails, texts, advertisements, and sales notes
  • Equipment and workmanship warranties
  • Electrical permit and inspection records
  • Roof inspection or repair records
  • Payoff, buyout, or transfer quote
  • Title-company or refinance requests
  • UCC filing or termination information
  • Any company closure, assignment, or servicer notices

New Hampshire Solar Contract FAQs

Questions New Hampshire Homeowners Are Asking

The answer often depends on the agreement, financing, timing, utility, project status, and specific facts.

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Can I cancel a solar contract in New Hampshire?

A qualifying home-solicitation sale generally can be canceled before midnight of the third business day after the transaction. The rule applies to sales of $150 or more when the seller solicits and sells somewhere other than the seller's permanent place of business, so the facts of the sale matter.

Does New Hampshire still have net metering for residential solar?

Yes. New Hampshire law and the current En 900 rules require electric distribution utilities to make net energy metering available to eligible customer-generators. The important issue is which tariff applies and how the bill credits are calculated.

Does New Hampshire net metering mean every exported kWh is credited at the full retail rate?

Not necessarily. The answer depends on whether the customer is under the legacy standard tariff or the alternative tariff, the utility, and the electricity-supply arrangement. Under the alternative structure, certain non-bypassable charges are assessed on gross electricity received from the grid.

Can my electricity supplier or community-power plan affect my solar credits?

Yes. New Hampshire law allows competitive electricity suppliers and municipal or county aggregators to determine certain terms, conditions, prices, and credits involving generation supply and exported customer generation.

Who owns the renewable energy certificates from my New Hampshire solar system?

New Hampshire law says RECs associated with the customer-generator remain the property of the customer-generator until they are sold or transferred. Your solar contract can still assign or transfer those rights, so review the actual agreement.

Does New Hampshire automatically exempt solar panels from property tax?

No. New Hampshire allows cities and towns to adopt a solar energy systems exemption, so the homeowner must verify whether the municipality has adopted the exemption and how it is administered locally.

Review the New Hampshire Solar Deal as a Whole

The Contract, Net-Metering Tariff, Electricity Supplier, and Financing All Need to Match

New Hampshire solar disputes can look simple at first but often involve several layers at once. The best review starts with the signed contract, interconnection date, utility tariff, electricity supplier, actual bills, production data, REC ownership, and financing. Once those pieces are lined up, it becomes much easier to identify what changed and what options may be available.

Official New Hampshire Solar and Consumer Resources

Verify the Rules That Apply to Your Situation

These government, regulator, utility, and first-party resources support the state-specific information on this page.

New Hampshire RSA 362-A:9 Net Energy Metering

Primary statute governing New Hampshire net energy metering, surplus credits, supplier treatment, RECs, group net metering, and tariff transition.

Official Resource

New Hampshire En 900 Net Metering Rules

Current Department of Energy rules governing standard and alternative net-metering customer-generators.

Official Resource

New Hampshire RSA 361-B:2

Primary three-business-day cancellation-notice and refund framework for qualifying home-solicitation sales.

Official Resource

New Hampshire Consumer Protection and Antitrust Bureau

Official consumer complaint path for unfair or deceptive business practices.

Official Resource

New Hampshire RSA Chapter 365

Primary utility-complaint framework involving the Department of Energy and Public Utilities Commission.

Official Resource

Eversource New Hampshire Net Metering

Utility-specific explanation of New Hampshire net-metering eligibility, metering, and billing treatment.

Official Resource

Eversource New Hampshire Interconnection

Utility-specific interconnection and permission-to-operate process for distributed generation.

Official Resource

New Hampshire Electric Cooperative Solar and Net Metering

Cooperative-specific net-metering and interconnection guidance for NHEC members.

Official Resource

New Hampshire RSA 72:62

Primary statute authorizing local adoption of the solar energy systems property-tax exemption.

Official Resource

New Hampshire Secretary of State UCC

Official UCC filing and search resource for secured-interest records that can matter in sales and refinances.

Official Resource

State information reviewed August 20, 2026. Laws, regulations, incentive programs, utility policies, agency responsibilities, and solar billing rules may change. Homeowners should verify current requirements with the appropriate agency, utility, lender, tax professional, attorney, or licensed contractor.