Answer
A solar testimonial strategy combines short customer videos, written quotes with specifics, online reviews and a few detailed case studies. The deciding factor is specificity: name the system, the bill change and the timeline, get written consent, and disclose any incentive under FTC rules. Place each testimonial beside the decision it supports.
Last updated: November 2026
Most solar websites carry a rotating strip of quotes like “Great service! Highly recommend!” They are easy to collect and easy to ignore. A testimonial earns its place when a prospect can see themselves in it: a similar roof, a similar worry, a named result. This guide shows how to collect, produce, disclose and place testimonials that do that work.
SurgePV publishes this post and sells solar design software.
Put real project numbers behind every testimonial
Pull a customer’s system size, modeled production and savings assumptions from one project record, so each quote names figures you can stand behind.
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These counts describe the contents of this guide. They are not industry results.
In this guide:
- Why testimonials matter in a high-stakes solar purchase
- The 4 testimonial formats and how they compare
- Identifying which customers make good testimonial candidates
- The interview process that yields strong content
- Production setup for video testimonials
- Written testimonial frameworks
- FTC, privacy and disclosure requirements
- Placement and distribution strategy
- Common testimonial mistakes
- Seven common questions
Why Testimonials Matter for Solar Sales
Solar is a large, long-term purchase, and trust is often the barrier between a qualified lead and a signed contract. A testimonial moves trust from someone who already decided to someone who is deciding. Three things make a testimonial work:
1. Peer signaling. A homeowner often trusts another homeowner more than a marketing message.
2. Scenario matching. “A neighbor with a similar roof” is more relevant than “satisfied customer.”
3. Evidence over adjectives. Specific outcomes and timelines reduce perceived risk. Generic claims add to it.
Key Takeaway: No Public Benchmark Ranks Testimonial Formats
Conversion lift figures for video, photo or text testimonials are often quoted without a source. This guide does not repeat them. Run your own test: tag testimonial links, compare lead rates by page and format, and keep what works for your market.
What the FTC Says About Testimonials
The FTC’s Endorsement Guides Q&A states that an endorsement must reflect the honest opinion of the endorser. It also says a connection viewers would not expect should be disclosed clearly and conspicuously, and that you cannot condition an incentive on a review being positive. The FTC’s 2024 final rule on fake reviews and testimonials bans creating or buying fake reviews, including AI-generated ones, and lets the FTC seek civil penalties against knowing violators. Treat these as the floor for every testimonial in this guide.
The 4 Testimonial Formats
Each format serves a different placement. The table compares them on use, structure and effort. Length figures are working guidelines, not benchmarks, and production cost depends on your market, so get local quotes.
| Format | Best for | Suggested length | What to include |
|---|---|---|---|
| Video testimonial | Website hero, proposals, social media | 60-120 seconds | Customer intro, concern, installer choice, install experience, outcome, recommendation |
| Written quote with photo | Service pages, location pages, email | 75-200 words | Specific quote, name, city, system size, install date, photo |
| Full case study | Long-form content, sales follow-up | 800-1,500 words plus images | Background, challenge, decision, project specifics, results with numbers, reflection |
| Short quote with rating | Social graphics, email signatures, page headers | 15-40 words | Rating, brief quote with a specific, name and city |
Format 1: Video Testimonial
Best for: website hero, sales proposals, social media.
Structure:
- Customer introduction (a few seconds)
- Initial concern or motivation
- Decision and installer choice
- Installation experience
- Outcome and benefit
- Recommendation
Format 2: Written Testimonial with Photo
Best for: website service pages, location pages, email content.
Structure:
- Specific quote
- Customer name and neighborhood or city
- System size and install date
- Photo of the customer or system
Format 3: Full Case Study
Best for: long-form website content, sales follow-up, deep nurture.
Structure:
- Customer overview (background, situation)
- Initial challenge or motivation
- Decision process and installer selection
- Project specifics (system design, installation)
- Results and outcomes with specific numbers, labeled as modeled or measured
- Customer reflection and recommendation
Only publish a case study when you hold the customer’s consent and the supporting data. Label modeled figures as modeled.
Format 4: Short-Form Quote with Star Rating
Best for: social media graphics, email signatures, page headers. Keep the quote brief and specific, with name and city.
Content Mix Recommendation
A residential installer can build a library over time from these targets. They are planning goals, not proven thresholds:
- A handful of video testimonials covering the main customer types
- Written testimonials with photos for each major service area
- A few full case studies across residential and commercial
- Short-form quotes drawn from the longer pieces for social media
Identifying Strong Testimonial Candidates
Not all happy customers make good testimonial candidates. Five criteria for ideal candidates:
Criterion 1: Specific Outcomes Achieved
Customers with measurable results (specific savings, payback achievement, particular benefits) provide compelling testimonials.
Less ideal: customers happy but vague (“just feels good”) Ideal: customers with specifics (“saved $2,400 in year 1”)
Criterion 2: Articulate and Comfortable on Camera
For video testimonials, customer comfort and articulation matter. Some happy customers can’t explain their experience well.
Pre-screen with a short phone call. Ask about their experience. If they articulate it well, they’ll do well on camera.
Criterion 3: Representative of Target Audience
Choose customers who match your target demographic. A retired couple’s testimonial may not resonate with young professionals (and vice versa).
For comprehensive library: capture testimonials across demographic segments (age, income, home type, motivation).
Criterion 4: Geographic Spread
Local prospects connect more with local testimonials. Build testimonial library across your service area:
- Several testimonials for each major city you serve
- At least one for each smaller city
- A spread of neighborhoods within metros
Criterion 5: Specific Situations Addressed
Common customer concerns require specific addressing testimonials:
- HOA navigation
- Older homes
- Specific roof types
- Power outage concerns
- Battery storage justification
- Commercial customer use cases
List the customer concerns that come up most in your sales calls, then aim for at least two testimonials on each. For storage questions, adding battery storage services covers the offer side.
Building the Pipeline
Each month, identify a few testimonial candidates from recent installs. Reach out after permission to operate (PTO) once the customer has seen a few billing cycles, when:
- System has produced measurable savings
- Initial honeymoon period passed (more reliable feedback)
- Customer has clear data points to discuss
Track candidates in CRM with status: identified, asked, agreed, scheduled, completed, published.
The Interview Process That Yields Strong Content
The interview determines testimonial quality. Strong interviews require preparation and specific techniques.
Pre-Interview Preparation
1. Review customer file
- System specifications
- Decision timeline
- Specific concerns raised during sales
- Installation details
- Production data since PTO
2. Prepare custom questions
- A set of questions based on the customer’s specific situation
- Open-ended (avoid yes/no questions)
- Sequenced from broad to specific
3. Set logistics
- An appointment window long enough for setup and a relaxed interview
- Customer’s home (best location for video)
- Time of day with good natural light
- Quiet environment
Sample Question Bank
Background and motivation (warm-up):
- How long have you lived in your home?
- What first made you think about solar?
- What were your biggest concerns about going solar?
Decision process (mid-interview): 4. How did you decide on [Company]? 5. What was the most important factor in your decision? 6. What surprised you most about getting solar quotes?
Installation experience: 7. Walk me through the day of installation. 8. What did the crew do that you appreciated? 9. Was there anything that didn’t go as expected?
Outcomes and benefits: 10. How has your electric bill changed since solar? 11. What’s the most measurable benefit so far? 12. What’s an unexpected benefit you didn’t anticipate?
Recommendation: 13. Would you recommend solar to a neighbor? 14. What advice would you give someone considering solar?
Interview Techniques
Technique 1: The follow-up question After every answer, ask: “Can you tell me more about that?” or “What did that look like specifically?”
Specific follow-ups elicit specific answers.
Technique 2: The number prompt When customers reference outcomes, ask for specifics: “Can you put a number on that?” “What does that mean in dollars?”
Specific numbers make a testimonial easier to believe, as long as they are accurate and the customer agrees to share them.
Technique 3: The contrast question “How is this different from what you expected?” reveals the gap between expectations and reality, often the most valuable testimonial content.
Technique 4: The advice frame “What would you tell someone in your situation 12 months ago?” yields recommendation content that converts prospects.
Editing and Production
For video testimonials:
- Capture in the highest quality your gear handles (allows reframing later)
- Multiple camera angles when budget allows
- Audio quality matters more than video quality
- Edit to a short cut (remove filler)
- Include B-roll of customer’s home/system
- Brand-consistent intro/outro
For written testimonials:
- Transcribe interview
- Edit for clarity (preserve voice)
- Show edited version to customer for approval
- Pair with photo
Production Setup for Video Testimonials
You can produce solid video testimonials with a modest kit. Audio matters more than camera quality, so spend there first. Equipment prices change often and vary by region, so check current listings before you budget.
Basic Gear List
Camera:
- A recent smartphone is enough to start
- A dedicated mirrorless camera if you shoot often
Audio (most important):
- A wireless lavalier set for two-person interviews
- A small on-camera shotgun microphone as a backup
- Avoid built-in camera microphones
Lighting:
- A small portable LED panel
- Or use natural light from large windows
Tripod:
- A compact tripod
Backup:
- 2x SD cards (64GB each)
- 2x batteries for camera
Filming Process
Setup (before the interview):
- Choose location with good light
- Frame customer with home/system visible
- Test audio levels
- Confirm camera settings
Interview:
- Engage customer in conversation
- Let camera roll continuously
- Ask follow-up questions
- Capture more usable footage than you expect to need
B-roll capture:
- Wide shot of customer’s home
- Close-up of solar panels
- System monitoring on phone/computer
- Customer in casual home moments
- Detail shots (electric bill, system specs)
Plan a block of time on site for setup, interview and B-roll. Track it on your first shoot.
Editing Time
Plan editing time for each short testimonial: a rough cut, color and audio cleanup, and a final review with the customer. Track your own hours on the first two or three videos and use that to budget the rest.
Written Testimonial Frameworks
For installers without video capacity, structured written testimonials still do real work. The three templates below are fictional examples for structure only. Never publish an invented testimonial. Replace every detail with a real customer’s words and facts, and get their approval.
Framework 1: Problem-Solution-Result
Structure:
- The problem (specific)
- The decision/solution
- The result (specific)
Fictional example:
“My APS bill kept climbing. Last summer I had a $340 bill in August. After researching three installers, I chose [Company]. Their NABCEP-certified design team designed an 8.4 kW system that fit my tile roof. Installation took 6 hours. My July bill last year was $42. Same hot summer. I’m saving roughly $200/month vs what I would have paid.”
[Customer name], [city]. [System size] installed [month year].
Framework 2: Concern-Process-Confidence
Structure:
- Initial concern that almost prevented purchase
- How the installer addressed it
- Current confidence and recommendation
Fictional example:
“I was worried about my older tile roof. Two other installers told me they couldn’t work with it. [Company] sent their structural engineer for a site visit before quoting. They proposed specific mounting hardware designed for tile and showed me three similar projects. The install came in on budget with no roof damage. Two years later, no leaks, no problems, and my electric bill is averaging $34/month.”
[Customer name], [city]. [System size] installed [month year].
Framework 3: Comparison and Decision
Structure:
- Why they considered solar
- How they evaluated options
- Why they chose this installer
Fictional example:
“We got 4 quotes ranging from $19,200 to $34,800 for our 9 kW system. The cheapest installer was hard to reach, the most expensive seemed pushy. [Company] was middle-tier on price but answered every technical question, brought sample equipment to our home, and walked us through their 12-year warranty in detail. We picked them because they didn’t try to oversell us. The system is performing close to what they modeled.”
[Customer names], [city]. [System size] installed [month year].
Legal and Disclosure Requirements
Testimonials are advertising. Compliance protects both the customer and the business, and it is part of what makes a testimonial believable.
FTC Endorsement Guidelines
The FTC’s Endorsement Guides Q&A sets out three points that matter most for installers:
1. Honest opinion. An endorsement must reflect the honest opinion of the endorser. Fabricated testimonials are deceptive. The FTC’s 2024 final rule bans creating or buying fake reviews and testimonials, including AI-generated ones, and allows civil penalties against knowing violators.
2. Typical results. If a customer’s result is exceptional and you lack proof it is typical, the FTC says the ad must make clear what results are generally expected. For solar, label savings as the customer’s own result and say how it was measured. Do not rely on “results may vary” alone.
3. Material connections. A connection viewers would not expect should be disclosed clearly and conspicuously. That includes credits, payments and free upgrades. You also cannot condition an incentive on a review being positive.
Example disclosure: “This customer received a service credit for participating in this video.”
Privacy and Consent
1. Written release. Get a signed release from every participant. It should cover:
- Specific use of the testimonial
- Where and how widely it will be distributed
- How long it can be used
- Modification rights (cropping, editing)
2. Image rights. Photo and video releases reduce the risk of later disputes. Include them in the same release.
3. Right to retract. Consider letting customers withdraw a testimonial after publication. It builds trust with participants.
Solar-Specific Compliance
1. Avoid energy guarantees. “Guaranteed savings of $X” creates liability. Use “modeled savings” or “projected savings” and state the assumptions.
2. Remove references to expired incentives. The IRS residential clean energy credit page says the credit is not available for property placed in service after December 31, 2025. Update or remove testimonials that promise it to new buyers.
3. State rules. State consumer-protection and solar-sales rules vary. Have counsel review your testimonial and disclosure templates for the states where you sell.
Keep testimonials and proposals telling the same story
Customer-facing proposals that carry modeled savings, labeled as modeled, make it easier to match a testimonial claim to the project record.
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Placement and Distribution Strategy
Where a testimonial appears affects its impact. Place it next to the decision it supports.
Website Placement
Useful locations:
- Homepage hero (a short video)
- Service pages (a relevant testimonial per service)
- Location pages (local testimonials)
- Sales proposal templates (closing-stage testimonials)
- Pricing pages (objection-handling testimonials)
Weaker locations:
- A dedicated testimonials page that few visitors reach
- The footer
- Sidebar widgets
Best Practices
- Embed testimonials in context, not only on a separate page
- Match the testimonial to the page topic (a commercial testimonial on a commercial page)
- Vary format: mix video, written quotes and short quotes
- Review testimonials at least yearly and remove outdated ones
- Show video with controls instead of autoplay
Distribution Channels
Each approved testimonial can be reused across:
- Your website (multiple placements)
- YouTube
- LinkedIn (company and personal accounts)
- Facebook, Instagram and TikTok (clipped versions)
- Email signatures and nurture campaigns
- Sales proposals
- Direct mail (case study printouts)
Pro Tip: Tag Every Testimonial Link
Add UTM parameters to links that sit inside testimonials. After a quarter, check which testimonials and pages produce inquiries and which are never opened. Move the strongest ones closer to the decision points and retire the rest.
Common Testimonial Mistakes Solar Installers Make
Mistake 1: Generic Praise
“Great service!” says little. Specific details (system size, savings, timeline) give a prospect something to weigh.
Mistake 2: All Positive, No Specifics
Five-star quotes without context look manufactured. Real customers mention specific moments, small concerns and concrete outcomes.
Mistake 3: Stock Photos
Generic stock photos of “customers” invite distrust. Use real customer photos, with consent.
Mistake 4: Fabricated Testimonials
Made-up testimonials are deceptive and, under the FTC’s 2024 rule, can bring civil penalties. Don’t publish them.
Mistake 5: Outdated Testimonials
Testimonials that promise an expired incentive or quote old pricing date the whole site. Update or remove them.
Mistake 6: Single-Format Library
Only written quotes, or only video. Different formats serve different placements.
Mistake 7: No Follow-Through
Getting permission and never publishing wastes the customer’s time and your opportunity.
Worth Trying: Feature the Skeptic
A testimonial that starts with “I was concerned about X, but…” answers a real objection in the customer’s own words. Ask your sales team which objections come up most, then look for customers who raised them before buying.
Illustrative Plan: Building a Testimonial Library in Six Months
This is a planning template, not a record of a real installer or real results. Adjust the targets to your customer volume and capacity.
| Phase | Months | Activity | Output |
|---|---|---|---|
| Identify | 1-2 | Shortlist candidates from recent installs | A tracked candidate list |
| Produce | 3-4 | Interview, film and write up the strongest customers | Video and written testimonials |
| Deepen | 5-6 | Build a few long-form case studies from the best interviews | Case studies with consent and data |
| Distribute | Ongoing | Reuse across site, social, email and proposals | Placements tagged for tracking |
Set a budget from local quotes for production and any customer thank-you, and disclose any incentive. Measure results with your own analytics: inquiries and conversion on pages with and without the new testimonials. Do not forecast revenue from a testimonial program until you have your own before-and-after data.
Frequently Asked Questions
Why are customer testimonials important for solar?
Solar is a large, long-term purchase, so buyers look for evidence from people who already made the decision. A specific testimonial shows a real system, a real bill change and a real installer experience, which brand claims cannot do. Keep every claim truthful and consented, because the FTC treats endorsements as advertising.
What types of solar testimonials work best?
The best mix is a short customer video, written quotes with a photo, and a few detailed case studies, each placed where it answers a specific objection. Specific testimonials with system size, bill change and decision context beat vague praise. No public study ranks the formats for solar, so test them on your own pages.
How do you ask solar customers for testimonials?
Ask after the customer has seen a few billing cycles with the system running, so they can describe real results. Frame the request around helping neighbors decide, offer to handle the production logistics, and never condition any incentive on a positive review, which the FTC says is a problem.
What questions should you ask in solar testimonials?
Ask open questions that draw out specifics: what worried you most about going solar, what surprised you about the process, what is the most measurable benefit so far, and what would you tell a neighbor considering solar. Follow each answer with a request for a number or an example.
How long should solar customer testimonial videos be?
Keep website and proposal videos short, about one to two minutes, and cut filler. Vertical clips for social channels can be shorter, and a full case-study video can run longer. These lengths are working guidelines, not proven benchmarks, so check watch-time data in your own analytics.
Can solar installers compensate customers for testimonials?
Yes, but the FTC says a connection viewers would not expect must be disclosed clearly and conspicuously, and an incentive cannot be conditioned on a positive review. State what the customer received next to the testimonial, and keep records of the release and any credit.
Where should solar installers place customer testimonials?
Place them next to the decision they support: the homepage, service and location pages, pricing and proposal pages, and email follow-ups. Match the testimonial to the page, such as a commercial customer on a commercial page, instead of collecting everything on one testimonials page.
Three Steps to Build Your Testimonial Library
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Identify five strong candidates this week. Recent customers with measurable savings and a clear communication style.
-
Record one video testimonial this month. Use the question framework above and keep the final cut short. Pull figures from your solar design software so each claim is specific and consistent with the project record.
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Place testimonials in context. Embed them on the pages where a prospect makes a decision instead of collecting them on one page.
Related SurgePV Resources
Continue with these related guides for solar installers and EPCs:
- Solar Review Management
- Video Marketing for Solar Installers
- Content Marketing for Solar Companies
- Handling Customer Complaints After Solar Installation
- Neighborhood Solar Marketing
For more solar business content, explore the full SurgePV blog or the SurgePV glossary.
Solar Software Tools to Support This Work
Specific testimonials depend on accurate project data. SurgePV’s solar design platform supports the upstream work:
- Solar design software for system layouts, panel placement, and BOM generation
- Shadow analysis for site-specific irradiance and obstruction modeling
- Generation and financial tool for production forecasts and project ROI
- Solar proposal software for branded, customer-facing proposals
To see how these fit your workflow, book a SurgePV demo.
Where this fits
This article is part of SurgePV's Solar Sales & Proposals hub, which works through the topic from first principles to the decisions a project team actually has to make.


