A
AISO Studio

Is your solar website keeping up? Here's what the data shows.

Solar Website Audit Report

We scanned 288 solar websites across the United States to benchmark their performance for search engines, AI answer engines, and accessibility.

Industry: Home Services · Sample size: 288 sites · Scan date: March 14, 2026

Overview

The solar industry faces a clear challenge online. Most websites in this space score well below what search engines and AI systems need to surface content. The average AISO score across all 288 sites is just 50 out of 100. That is a low bar. It also means there is a big opportunity for businesses that invest in their web presence now.

The strongest area for solar sites is SEO, with an average of 79. The weakest area is AEO, at just 21. According to Google's SEO documentation, sites that fail to meet basic technical standards risk losing visibility in both traditional and AI-powered search results.

What does this mean for your business? If your site scores above 50, you are already ahead of most competitors. If it scores below, you risk losing traffic to rivals who fix these issues first. According to the W3C Web Accessibility Initiative, accessible websites also reach a wider audience and reduce legal risk.

Key insight: 48% of solar websites score below 50. The majority of sites in this vertical are underperforming across multiple dimensions.

Summary Scores

50

AISO Score

79

SEO

34

Readability

69

Engagement

21

AEO

53

WCAG

Key Findings

48%

Score Below 50

A significant portion of sites need improvement.

19%

Missing Schema Markup

These sites have no structured data, making them harder for search engines and AI to understand.

9%

No Open Graph Tags

Without OG tags, shared links on social media appear without rich previews.

What This Means

These findings tell a simple story. Most solar websites were built without modern optimization in mind. They load, they look fine, but they fail to communicate with the systems that drive traffic today.

Search engines need structured data to understand your pages. AI answer engines need clear, direct answers to cite your content. Screen readers need proper HTML to serve users with disabilities. Missing any of these means missing out on visitors, customers, and revenue.

Key Takeaways

After analyzing 288 solar websites, here's what stands out most. These are the three most important points from the data.

  1. Most sites score poorly overall. An average AISO score of 50 means the typical solar website misses more than half of what modern search and AI systems look for.
  2. AEO is the weakest link. At just 21 on average, this dimension drags down overall scores. Fixing it first gives the biggest return.
  3. Basic technical issues are widespread. 19% of sites lack schema markup. 9% have no Open Graph tags. These are quick wins that most sites have not addressed.
Bottom line: The solar industry is behind on web optimization. Early movers who fix these issues will gain a real edge in both search rankings and AI visibility.

How to Improve Your Score

Want to beat the average? Follow these steps in order. Each one builds on the last. Start with the basics and work your way up.

  1. Step 1: Fix your technical SEO. Add a meta title, meta description, and canonical URL to every page. Add schema markup using JSON-LD. Add Open Graph tags so your links look good when shared. These changes take less than an hour and have an immediate impact.
  2. Step 2: Improve readability. Rewrite your main pages at an 8th grade reading level. Use short sentences. Use simple words. Break up long paragraphs. According to Google, clear and simple content performs better in search results.
  3. Step 3: Add engagement elements. Use headings, bullet lists, bold text, and blockquotes. Add images with descriptive alt text. Make your content easy to scan. Visitors decide within seconds whether to stay or leave.
  4. Step 4: Optimize for AI engines. Add a FAQ section to your key pages. Use direct answer formats. Define what your business does in one clear sentence at the top of your homepage. AI systems like ChatGPT and Perplexity prefer content that gives a straight answer.
  5. Step 5: Check accessibility. Run a WCAG audit. Ensure all images have alt text. Check that color contrast meets minimum ratios. Use semantic HTML elements like headings, lists, and landmarks. According to the W3C, over one billion people worldwide live with some form of disability.

Score Distribution

The charts below show how scores are spread across all 288 sites. The histogram groups sites by score range. The grade chart shows how many sites earned each letter grade. A score of 80 or above earns an A. Below 30 is an F.

AISO Score Ranges

0-9
0
10-19
0
20-29
3
30-39
32
40-49
103
50-59
103
60-69
42
70-79
5
80-89
0
90-99
0

Grade Distribution

A
0 (0%)
B
5 (2%)
C
42 (15%)
D
103 (36%)
F
138 (48%)

Dimension Breakdown

Average scores across all 288 solar websites for each scoring dimension.

SEO
79
Readability
34
Engagement
69
AEO
21
WCAG
53

Full Results

The table below lists all 288 websites ranked by their overall AISO score. Each row shows the total score, letter grade, and individual dimension scores. Use it to see how sites in the solar space compare against each other.

Domains are partially blurred to protect privacy. Scores range from 0 to 100. Higher is better.

#DomainScoreGradeSEORead.Eng.AEOWCAG
1myunlim*************74B89551004195
2greenpo*************70B10034905091
3palme*******70B9541836675
4vtstar*********70B100508030100
5edge-g**********70B9242904889
6georgia*************69C8952902697
7lombard************68C9243655892
8hometea***********67C9451903471
9consume************67C9741955650
10solarener**************66C9747754376
11gobig********66C9259653588
12energ*********65C8935784889
13join******65C8642835074
14virtue*********65C8453852687
15solara*********64C9247902673
16ceus*****64C7558752894
17freedom***********64C8956702884
18goldpa***********64C9451805042
19conver***********64C9461903436
20ecowa*******63C9732904654
21stitt*********63C8944853373
22lumina*********63C8647655074
23allener***********63C9434853283
24mosolar*************63C9727902589
25infinit*************63C9746803856
26positivee**************63C8647803575
27ncsol*********63C9159853344
28horiz*********62C8949752580
29huston*********62C8944903356
30cne*****62C9140856133
31lonestars****************62C8949733373
32blosso**********62C8665602578
33solutions.******************62C9432655078
34enac*******61C9243803067
35nrep******61C8931802894
36ctpo******61C8942806127
37intermtnw***************61C9436902571
38ses*****61C9419902593
39solar.b*************61C9725853870
40reno******61C9449903336
41ohiopowe**************61C9747701882
42solar*********60C8961802636
43solarlo***********60C8446553888
44warnere************60C7464681088
45yello*********60C10031703080
46safehav*************60C8939702589
47nwso*******60C9449904119
48aps****59D7440782589
49ark.*****59D8439702590
50bluerav***********59D8938903449
51kcso*******59D8954882533
52summit*********59D8953832543
53les****59D7940852575
54greenra***********59D8956851057
55greenm***********59D9444902539
56lgcyp********59D9253651873
57delta*********58D7751652576
58boise*********58D8953901047
591sourc**********58D9140953331
60dailygr************58D9236631895
61peninsu************58D94361001055
62jackson************58D8141682885
63sunw******58D7751701882
64txg*****58D8628704079
65aneva*********57D9723851872
66nrgcle***********57D9410854660
67solars*********57D7446652090
68true-*********57D8941653858
69assure**********57D8249552090
70sunr******57D8432654074
71revisio***********57D8750851845
72schoenh************57D951903093
73thinks***********57D7950682567
74newyorkpo****************57D865190389
75sig.*****56D7954751065
76solarunit***************56D7250802853
77southco************56D8233701892
78main*****56D8226851091
79solaren*************56D8932604067
80liveoaken***************56D91301001844
81a-rso*******56D8941852538
82ener******56D6445751889
83ckrso*******55D9229703061
84premierimp****************55D7654651073
85floridasol*****************55D860835373
86suncoll************55D8943803525
87barkle**********55D8457653331
88shinno**********55D10035602860
89mnse******55D8242601094
90sunwi*********55D8943852530
91sunlig***********55D7244751085
92allsol*********55D8936651879
93roofto*********54D7945801846
94envisio*************54D8752681053
95namast**********54D8952701838
96sunergyso**************54D920852588
97ned*****54D9414753366
98futureen*************54D9441832815
99missoul************54D7739903328
100solarsm*************54D6552731863
101casscoun**************54D6447753354
102yupso*******54D8437632863
103solars***********53D7445751858
104areso*******53D940853075
105paradises**************53D9219701880
106cromwe***********53D7922802667
107strawbe************53D9239733030
108wolfrive*************53D9028803042
109afforda*************53D8957751814
110okie******53D898904045
111endless************53D7761501856
112call*******53D8146701064
113solarh*********53D8618783363
114fullspec*************53D7651851829
115revolt***********53D7446803522
116smallen************53D8927903031
117susitn***********52D6662631058
118sunsolar*************52D7434601889
119lumin*******52D6640633858
120ctgree*********52D6452701855
121hipowe**********52D8636853316
122sundo*******52D8649701831
123efficie************52D7239632078
124organmou**************52D8956701815
125catamou***********52D8443781047
126energys************52D9214701096
127ipsun*********52D7937851843
128solarr**********51D6749552067
129newfar**********51D7364551840
130aevso*******51D9240551063
131simply*********51D8631602559
132gai.******51D8427751067
133goodenerg**************51D7937851838
134aurora***********51D8218702674
135greentech**************51D7936501094
136redgr*********51D8428651079
137trinit**********50D7239632554
138fusionso*************50D815250070
139floridaso***************50D7942701841
140iowas********50D6941852529
141solardir**************50D8143551854
142manns********50D8133801838
143jehso*******50D7646601060
144ecobu*********50D8246551852
145mainecomm***************50D7949501063
146esolut***********50D8135652545
147sc.*****50D765468339
148greenwa***********50D8710681889
149mwsola**********50D7933551087
150revolutio****************50D5951781050
151alabam**********49F7445751831
152sola******49F7414732574
153intyp********49F8123732550
154revol********49F8933802020
155straigh************49F7942751038
156indiana.univ********************49F5643681073
157msso*******49F5751851829
158windsola*************49F870612596
159603so*******49F8925783316
160kokosi***********49F840703375
161ecohou***********49F7923801853
162earthli***********49F8425702547
163sandbo**********48F890901070
164georgi**********48F7448632523
165cwsol*********48F7421502589
166firstl**********48F7157631033
167bosto*********48F694790187
168cedarcr*************48F8438631836
169ussun*********48F7925684031
170solu*****48F862780339
171sunupz***********48F9428751826
172ppcso*******48F7144751829
173sollun**********48F6435751060
174light*********48F6730952620
175psokl*********48F6247602546
176portlan************48F4510025057
177txsp*****48F6831701070
178credib***********48F841703371
179endriessol*****************48F7647601838
180thesol**********48F8141601050
181golden*********47F8922801039
182solarinsta******************47F7162551029
183independen*****************47F9429751026
184malama*********47F8152551032
185sesr*****47F7638731041
186ecgso*******47F7939731029
187eaglepo************47F820783353
188newdaw**********47F7946501050
189solar*********47F733485288
190moment***********47F7953651020
191holsen*********47F7628501088
192greenri************47F7950601819
193renewsola**************47F810903340
194pureene************46F8114702547
195hannah*********46F7348651030
196colit*********46F8425801031
197bigdog*********46F7642652512
198southernsolaran**************************46F8427551852
199sustai**********46F762860078
200solar*********46F830701878
201everlig***********46F6442684010
202montanar*************46F6751652515
2038mso*******46F710751886
204offgride**************46F7939551841
205imagin***********46F8145481640
206goodfai************46F9111752531
207svtso*******46F864555044
208norwic**********46F7738681037
209letsgo*********45F8717851027
210solarandgree********************45F8129551848
211trunor***********45F7944501039
212ecrene*********45F9213651057
213sunups**********45F6045701826
214oesol********45F9123602036
215renuenerg**************45F890851052
216circle**********45F6261651017
217solarpro**************45F8437701811
218sames********45F7127651847
219sei*****44F940902615
220sundan***********44F8924701819
221envin*******44F8117701840
222renewab************43F6145501840
223urban*********43F910752532
224alternate****************43F8231701022
225backwoo***********43F6941651027
226cbsol*********43F6142501056
227cromwe*********43F662658080
228isiso*******43F747551091
229oksolar*************43F694950044
230ionso*******43F6940552327
231gesso*******43F6437601047
232redstonec**************43F5725681064
233wase******43F5935601055
234pugetso************43F860852625
235solar*********42F720753042
236arsolar************42F7927551832
237sunspea***********42F7146601012
238redemptions******************42F6924751037
239opc.ma**********42F6012582567
240mississip****************42F5244651036
241suntre**********42F740651080
242energ********42F640681092
243midwest************42F4938531067
244californias******************41F7718551840
245shaws********41F614353050
246com4*****41F695443033
247mtvso*******41F710681862
248wyomingr*************41F6036701028
249californi***************40F4744451056
250ilsol*********40F474635083
251bigskys***********40F700501090
252wycowin*************40F6618701829
253olsonso*************40F7436601014
254genso*******39F768651046
255mississ*************39F6232581032
256solarm**********39F7126581031
257perihel************38F594255029
258rethink************38F740731045
259kansasso**************38F817681031
260mnrene**********38F71148090
261npp*****38F506581873
262ceso*******38F790651050
263solarso************38F771138080
264sunergy***********38F710751832
265cbsso*******37F743750109
266onsitee************37F772350037
267sunat*******37F710681047
268innovativ***************37F614115078
269renewwi***********37F6717331070
270whistlehi**************36F71150080
271carolinas**************36F542240080
272troysaler**************36F712650032
273kumu*******35F5437381038
274southernso*****************35F127923057
275stateli***********34F6412601030
276empowe*********33F424225063
277nh.*****33F570681041
278tnoffgr*************33F610501061
279arche*******33F77075104
280akino*********32F540651041
281renewabl*************31F660581026
282electric*************31F4027501029
283nalaba***********30F542135835
284solarpowe****************30F610601025
285solar*******30F520581038
286route6**********27F470581025
287blackhi************27F611501017
288illino***********23F400461023

Frequently Asked Questions

What is the average AISO score for solar websites?

The average AISO score for solar websites is 50 out of 100. This is based on a scan of 288 sites in the home services industry. The score combines five dimensions: SEO (79), readability (34), engagement (69), AEO (21), and WCAG accessibility (53).

How do solar websites perform on accessibility?

The average WCAG score is 53 out of 100. Many solar websites still lack basic accessibility features like alt text on images, proper heading structure, and sufficient color contrast. Improving accessibility helps you reach more users and reduces legal risk.

Are solar websites ready for AI search engines?

Not yet. The average AEO score is 21 out of 100. AI engines like ChatGPT, Perplexity, and Google AI Overview need structured data, FAQ sections, and direct answer formats to cite a website. Currently, 19% of solar sites have no schema markup at all.

What is the biggest weakness for solar websites?

The weakest dimension is AEO, with an average score of just 21. This represents the area where solar websites have the most room to grow. Focusing improvement efforts here will have the largest impact on overall scores.

How can I check my own website's score?

You can run a free audit on any website using AISO Studio. Enter your URL and get a full breakdown of your SEO, readability, engagement, AEO, and WCAG scores in under a minute. No signup required.

Methodology

We score each website across five areas. The AISO Score is a weighted mix of all five. It shows how well a site works for both people and AI systems. Here is what each area measures.

SEO (Technical Search Optimization)

Checks meta titles, descriptions, canonical URLs, schema markup, Open Graph tags, heading structure, and other signals that help search engines crawl and index a page.

Readability

Measures the Flesch Reading Ease score, average sentence length, and word complexity. Higher scores mean the content is easier for the public to read and understand.

Engagement

Looks at content formatting: headings, lists, bold text, blockquotes, images, and other elements that make content easy to scan and read.

AEO (AI Engine Optimization)

Checks how well content is set up for AI answer engines like ChatGPT, Perplexity, and Google AI Overview. Looks for direct answer formats, FAQ sections, and clear definitions.

WCAG (Accessibility)

Tests for Web Content Accessibility Guidelines compliance: color contrast, alt text, ARIA labels, semantic HTML, and keyboard navigation support.

How Does YOUR Solar Website Score?

The average solar website scores 50/100. Run a free audit to see where you stand and get actionable recommendations to improve your search visibility, AI readiness, and accessibility today.

Get Your Free Audit
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Solar Website Audit Report - AISO Studio | AISO Studio