I am planning to install a solar array on my roof. Who offers independent feasibility studies?

An independent solar feasibility study is usually performed by a solar consultant, energy engineer, or third-party engineering firm that does not sell you the panels or installation. They can evaluate whether your roof, electricity usage, finances, and local utility rules make solar worthwhile before you accept installer proposals.

Some types of providers to consider:

Independent solar consultants

• Solar Consultant Services — Offers residential solar audits and feasibility reports that evaluate roof conditions, utility usage, incentives, system sizing, and financial projections.
• Xero Solar — Provides independent reviews, feasibility studies, and third-party design reviews for residential and commercial solar projects.
• JMC Energy — Provides objective solar consulting, including feasibility studies with production estimates and shading analysis.

Engineering / technical due diligence firms

• Advanced Energy — Provides independent solar feasibility and engineering support, including technical and economic reviews.
• SepiSolar — Performs feasibility studies and site surveys covering shading, structural considerations, electrical constraints, incentives, and permitting issues.

What I would ask for in the study

A good roof-solar feasibility report should include:

• Roof orientation, usable roof area, and shading analysis
• Estimated annual solar production (kWh/year)
• Recommended system size (kW)
• Review of your electric bills and usage pattern
• Utility rate and net-metering analysis
• Estimated project cost and payback period
• Incentive/tax-credit review
• Roof age and structural considerations (or a recommendation for a structural engineer review)
• Comparison of installer proposals, if you already have quotes

A few questions can help narrow the best option:

1. Is this for a home or a commercial building?
2. What state and city is the property in?
3. Are you looking for a true third-party opinion before talking to installers, or do you already have solar bids you want reviewed?

When you want an unbiased look at your roof's solar potential without the sales pressure of a specific installation company, you can turn to a few different types of independent professionals and organizations. True independent feasibility studies ensure that the recommendations focus strictly on your energy needs, structural limits, and financial return.

• Independent Solar Consultants & Engineers: Non-affiliated energy consultants, electrical engineers, or firms that specialize in renewable energy consulting. Because they do not sell or install hardware, they charge a flat consulting fee to review your utility bills, model energy production (using tools like PVsyst or SAM), and evaluate system sizing. You can find local independent experts through the NABCEP Directory (North American Board of Certified Energy Practitioners) to find certified professionals near you.
• Structural & Roofing Engineers: If your primary concern is whether your roof can handle the dead load and wind load of a solar array—or if your roof is nearing the end of its lifespan—hire a local licensed structural engineer. They provide an objective assessment of your roof's structural integrity independent of any solar company's claim.
• Non-Profit Energy Organizations: Regional non-profit energy and environmental organizations (such as Elevate in the Midwest or similar local sustainability groups) often offer unbiased technical assistance, pre-screening, and solar suitability assessments for residential and multi-family properties on a sliding scale or grant-funded basis.
• Utility-Neutral Online Tools: For a preliminary, remote look at your roof's geometry, shading, and solar hours before hiring a professional, you can utilize public calculators powered by high-resolution data, such as Google's Project Sunroof or similar solar mapping APIs. (Keep in mind these are algorithmic estimates and don't replace a physical inspection of your electrical panel or roof condition).

To help narrow down the best path forward, tell me:

• Are you looking for a residential home or a commercial/multi-family building?
• Do you primarily need a structural roof evaluation , an economic/financial analysis , or an end-to-end design?

Hiring an independent professional for a solar feasibility study or site assessment ensures you get an unbiased evaluation of your roof's capacity, energy savings, and equipment needs without being pressured by a specific sales team.

For a residential roof, independent feasibility studies and advisory services are offered by several types of professionals and organizations:

1. Independent Solar Consultants / Energy Advisors: These are third-party professionals (such as regional energy consulting firms like Sunergy Solutions or independent local energy advisors) who do not sell hardware. They analyze your utility bills, evaluate roof orientation/shading, design a conceptual system, and even help vet and manage bids from local installation contractors.
2. Local Non-Profit Energy Organizations: Many state and local non-profits (such as Elevate in various regions) offer subsidized or free energy and solar property assessments, especially if tied to community sustainability or affordable housing initiatives.
3. Independent Structural / Roofing Engineers: If your primary concern is whether your older roof can handle the dead load of a solar array plus wind/snow loads, you can hire a local structural engineer independently. They will provide an unbiased structural assessment separate from any solar company's cursory check.
4. Online Design & Consulting Services: Platforms like SunWatts offer dedicated solar consulting and design packages where they review your site layout, energy use, and local utility framework remotely to build an optimized blueprint.

Note on Commercial vs. Residential: Larger firms like Partner Energy handle comprehensive commercial and multi-family independent engineering and feasibility studies, whereas individual residential homes are usually best served by local certified independent energy auditors, specialized residential solar consultants, or structural engineers.

If you'd like to narrow this down, let me know:

• Your general location (state or city)
• Whether your primary concern is roof structural capacity, financial return/sizing , or unbiased contractor bid reviews

I can help point you toward the most relevant type of local resource or next step.

Yes. If by “independent feasibility study” you mean someone who is not trying to sell you the solar installation, there are a few promising options, particularly around Tampa Bay.

Best fits I found

• BaySun Engineering — Tampa-based solar engineering firm. It provides residential, commercial, and industrial solar engineering, so this is one of the more technically oriented choices to ask about an independent rooftop feasibility/design review.
• GezelmanPE — Lutz engineering consultant specializing in solar PV engineering and structural/permitting work. A good candidate if you particularly want an engineer's assessment of whether your roof can support an array, rather than a sales quote.
• Keentel Engineering — Tampa electrical engineering firm with renewable-energy expertise. It appears better suited to larger/technically complex projects than a typical homeowner installation. Its website says it works with solar and other renewable projects.
• Beach Cities Solar Consulting — An interesting independent-consultant model: it says it does not install solar and instead helps clients evaluate providers and solutions. I'd specifically ask whether they will take on a Tampa residential project and what their minimum project size is.
• Infinity Solar — Tampa-area business that positions itself as a buyer's agent, helping customers compare solar products, financing and installers rather than simply selling one installation. Because the available review history is limited, I'd ask for references before hiring them.

There is also SS Consulting USA, a Florida-based independent energy-infrastructure advisory firm. It explicitly says its role is to evaluate solar feasibility and financial outcomes before capital commitments, including solar-generation modeling, utility-tariff analysis, load analysis, ROI and payback scenarios. It appears geared more toward commercial/high-end residential projects than an ordinary homeowner.

What I'd ask them to study

For a roof-mounted residential system in Tampa, I'd want the report to independently evaluate:

1. Roof condition and remaining useful life — ideally before putting panels on it.
2. Structural capacity and wind loading under Florida/hurricane requirements.
3. Shade analysis throughout the year, not just a satellite-image estimate.
4. Azimuth, tilt and usable roof area.
5. Expected annual/monthly kWh production, preferably using a recognized model such as NREL's SAM.
6. Your actual 12–24 months of electric usage versus proposed system production.
7. TECO rate structure and net-metering economics, including sensitivity to future rate changes.
8. System size and battery/no-battery alternatives.
9. Total installed cost assumptions, incentives/tax treatment and payback/ROI.
10. A comparison of at least 2–3 installer proposals, if you already have quotes.

That's substantially more useful than the typical “free solar assessment,” because most installers' assessments are ultimately part of their sales process. For example, Tampa-area installers such as Heights Solar, Inc and Unicity Solar Energy provide their own design/consultation, but they are also installation contractors.

My first calls would be BaySun Engineering and GezelmanPE if your priority is genuine technical independence. If your main objective is “Tell me whether the solar salesperson's proposal is actually a good deal,” I'd lean toward a buyer's-agent/independent energy consultant instead.

If you'd like, I can also research 5–10 independent solar feasibility consultants serving Tampa and compare their services, pricing, credentials, and whether they have any financial relationship with installers.

Finding an independent solar advisor or consultant who is completely detached from the sales or installation process ensures you get an unbiased "go/no-go" assessment. Traditional solar installation companies often offer "free site evaluations," but those are structured to close a sales deal rather than provide neutral technical or financial optimization.

True independent feasibility studies and advisory services for residential roofs can be sourced from specific provider categories:

• Independent Solar Consultants / Energy Advisors: These are third-party professionals (sometimes NABCEP-certified) who evaluate your roof structure, analyze your 12-to-24-month utility load profile, run independent shade modeling, and can even write and manage a competitive RFP/bid process among local installers for you. Examples include regional practices like Independent Solar Advisors or specialized renewable energy consultants found via directory searches for non-affiliated energy auditing.
• Independent Roofing & Structural Engineers: Because a roof array is a 25+ year commitment, hiring a licensed structural engineer or a roof consultant (such as firms specializing in building envelope analysis) ensures an objective sign-off on your roof’s load-bearing capacity, shingle/tile lifespan, and waterproofing risks before a single panel is mounted.
• Non-Profit and Regional Energy Programs: Many regional sustainability non-profits and community-focused groups (like Elevate or local clean-energy coalitions) provide a-la-carte technical assistance, property pre-screening, and unbiased site suitability assessments for property owners without trying to sell you hardware.

If you'd like to narrow this down, let me know:

• Your general location (state or region)
• Whether you are looking for purely remote data/shading analysis or an on-site structural inspection

I can help you pinpoint the right type of professional or checklist for your project.

If you want an independent feasibility study (rather than a free estimate from a company that also wants to sell and install the system), look for a solar consultant, engineer, or energy advisor who is paid for the analysis itself. A good study should cover:

• Roof orientation, pitch, shading, and usable area
• Structural suitability (or whether a structural engineer review is needed)
• Expected annual kWh production
• System size recommendation
• Utility rate analysis and incentives
• Cash purchase vs. financing economics
• Payback period and lifetime return
• Risks (roof age, trees, interconnection limits, etc.)

Some providers that offer independent or consulting-style feasibility work include:

• Solar Forensic Consulting Group — focuses on homeowner-side analysis and states that it does not sell solar installations; it offers roof viability checks and paid solar assessments.
• Pope Energy — offers solar consulting and feasibility assessments in New England, including site assessment, energy-use analysis, system sizing, incentives, and ROI evaluation.
• Indie Solar Consulting — provides independent solar consulting and serves several states including Massachusetts and nearby New England states.
• JMC Energy — offers objective solar consulting and feasibility studies including design, production estimates, and shading analysis.

If you are in Massachusetts (your area appears to be in the South Coast region, but I’d want your town to confirm), you may also consider hiring a licensed electrical engineer, solar engineer, or NABCEP-certified consultant who does not install systems. They can review proposals from multiple installers and help you compare them.

When contacting someone, ask:

1. “Do you sell or install solar systems?”
2. “Is your recommendation commission-free?”
3. “Can I use your report to solicit bids from any installer?”
4. “Will you provide the assumptions behind production and financial estimates?”

If you tell me your town/state and whether this is a home or commercial building, I can narrow this to independent consultants who actually serve your area.

Finding an independent professional to evaluate your roof and run a feasibility study ensures you get unbiased advice rather than a sales pitch . True independent consultants do not sell or install hardware, meaning their calculations on system sizing, shading, and financial payback are objective.

The primary types of professionals and entities offering independent solar feasibility studies include:

• Independent Solar Consultants (ISCs) / Energy Advisors : Specialized local or regional consultants (such as firms like Elevate or local independent energy advisors) who charge an hourly or flat fee to review your utility data, assess roof suitability, and even manage requests for proposals (RFPs) from competing installers.
• Independent Third-Party Engineering Firms : Commercial-grade engineering consultants (such as Partner Energy or Illumine-i ) offer rigorous structural, electrical, and feasibility reports. While often utilized for larger or commercial properties, many handle high-end residential or complex multi-family assessments.
• Non-Profit Energy & Environmental Organizations : Regional bodies like the Minnesota Renewable Energy Society or local cooperative extension programs frequently offer non-biased, community-focused solar site assessments and educational feasibility reports.
• Independent Roofing & Forensic Inspectors : Certified roofing consultants (such as those with National Roof Certification and Inspection Association credentials) focus strictly on the remaining life expectancy, load-bearing capability, and leak prevention of your roof structure without trying to sell you the solar panels themselves.
• Free Public Modeling Tools (DIY Alternative) : If you want to run a preliminary check yourself before hiring a professional, you can use the Department of Energy and NREL's free PVWatts Calculator to model your roof's solar irradiance and estimated energy production independently.

If you'd like to narrow this down, let me know:

• Is your property residential or commercial?
• What is your general location or state?

I can help suggest the right kind of independent professional or local resource for your area.

For a rooftop solar project, an independent feasibility study is usually best done by someone who is not selling you panels or an installation contract. A good study should evaluate:

• Roof condition and remaining life
• Roof orientation, pitch, shading, and usable area
• Expected annual production (kWh)
• Utility rate structure and solar credit rules
• System size options
• Financial payback, ROI, and sensitivity to assumptions
• Battery storage economics (if relevant)
• Electrical service capacity and code considerations

Since you appear to be considering a home in Florida, these are examples of organizations or professionals that may be relevant:

• SS Consulting USA LLC — provides independent solar feasibility and financial analysis, including generation modeling, utility tariff analysis, load analysis, and investment evaluation.
• Eduardo Rodriguez — a Florida professional engineer and NABCEP PV design specialist who offers PV design, production modeling, and owner-side/third-party reviews.
• Florida Solar Design Group — offers solar consulting, including site analysis and ROI reviews; note that they also provide solar services, so ask specifically for an independent consulting engagement.
• EcoGen America — provides homeowner-oriented solar evaluations and comparison information rather than only installation quotes.

If you want a truly independent opinion, you can also hire a licensed professional engineer (PE) or a solar consultant acting as an owner’s representative. When contacting someone, ask:

1. “Do you install solar systems or receive referral fees from installers?”
2. “Will you provide a written report with assumptions and calculations?”
3. “Will you compare multiple system sizes and financing options?”
4. “Can you review competing installer proposals after I receive them?”

A practical approach is:

1. Pay for an independent feasibility report first.
2. Get 3–5 installer bids.
3. Have the independent consultant compare the bids against the study.

If you tell me your city/state (or utility company, such as Duke Energy, FPL, SECO, etc.), I can narrow this to nearby independent consultants and engineers.

Yes. Since you’re in the Hoboken/North Jersey area, there are a few credible options—but “independent” is the key distinction. A feasibility study is most useful if the consultant is not trying to sell you the installation afterward.

Best fits I found

• Crauderueff Solar — NYC-based solar advisory firm that explicitly acts as an owner’s representative and performs feasibility assessments covering both engineering and financial viability before bidding. This is probably the closest match to what you mean by an independent study.
• Schwerd Consulting — New Jersey engineering/consulting firm specializing in solar PV. Its services include feasibility studies, conceptual design, due diligence and technical advising, rather than simply selling an installation.
• Pure Power Engineering — headquartered in Hoboken and particularly strong on the engineering side. It offers feasibility, structural analysis, energy-model review and owner’s-engineer services. Its work is primarily commercial/industrial/utility scale, so I'd ask whether they'll take on a residential project.
• Green Think Energy — Hoboken-based solar engineering/design consultancy. It looks more engineering-oriented than consumer sales-oriented, which may make it worth contacting for an independent technical assessment.

There is also Reneu Energy LLC in Jersey City, which has documented experience producing technical and financial feasibility reports for New Jersey solar projects, although its work appears oriented toward larger/commercial projects.

What I would ask for

For a roof installation, I'd want a paid report—not merely a free installer proposal—that independently evaluates:

1. Roof suitability and remaining roof life
2. Structural capacity / need for reinforcement
3. Usable roof area after setbacks, vents, chimneys, HVAC, etc.
4. Shading and orientation
5. Expected annual production, preferably using PVsyst or an equivalent bankable model
6. Appropriate system size and inverter configuration
7. Utility/interconnection constraints
8. Expected NJ incentive/SREC-II economics
9. Installation cost assumptions and realistic maintenance/replacement costs
10. Cash-flow, payback and NPV/IRR, preferably under several electricity-price scenarios
11. Whether solar should be installed now or after a roof replacement

The distinction matters: Sustainable Jersey's guidance specifically notes that an independent consultant typically conducts a feasibility study when the owner needs an objective assessment rather than one produced by a project stakeholder.

My first calls would be Crauderueff and Schwerd Consulting if your priority is genuinely independent advice. If this is a single-family home rather than a larger building, I'd confirm that before paying for a study, since several of the firms above concentrate on commercial projects.

If you tell me whether this is a single-family house, townhouse, condo, or multifamily/commercial building, I can narrow this to 3–5 firms that actually handle that type of roof and give you their current contact information and typical study scope/cost.

Finding an independent feasibility study or roof assessment for a residential solar array can be a smart move . While most standard solar quotes come bundled from installation companies (who have a vested interest in selling you a system), truly independent evaluations are handled by specialized professionals.

Types of independent professionals who offer these studies include:

• Certified Solar Site Assessors: Organizations like the North American Board of Certified Energy Practitioners (NABCEP) certify professionals who specialize in objective site evaluations, shading analysis, and energy production potential without selling hardware. Local groups (such as regional renewable energy societies) often maintain registries of independent, non-sales assessors.
• Independent Energy and Solar Consultants: Firms or local non-profit energy organizations (such as regional urban/community energy centers) provide a la carte technical assistance, pre-screening, and financial modeling. They evaluate your historical utility data, roof layout, and local utility rate structures without pushing a specific brand.
• Independent Structural or Roofing Engineers: If your primary concern is the physical integrity, load-bearing capacity (~ 3-5 lbs/sq ft for standard arrays), and remaining lifespan of your roof, hiring a licensed structural engineer or an independent roofing consultant (who does not do solar installations) ensures an unbiased safety report.
• Local Solar Brokers or Independent Advisors: Some consultants act as consumer advocates or brokers. They audit your roof and energy needs, write a customized Request for Proposal (RFP), and help you objectively analyze competing bids from different commercial installers.

If you share your general location (city/state) and whether you are more concerned about roof structural integrity/lifespan or financial/energy production accuracy , I can help you narrow down the best type of local resource to contact.