Delta Solar Power

Each mark is one company we hold in the San Marcos area whose Google breakdown has been read, placed by its share of one and two star reviews. Delta Solar Power is the red one. The amber line is the middle of that set, which includes suppliers and maintenance businesses as well as installers.

• 1★ · around June 2026

  If I could rate this company 0 stars, I would. I signed my contract with Delta Solar in September. While the sales process was smooth, everything after that has been extremely frustrating and unprofessional. My system was installed before the interconnection paperwork was properly completed, which led to significant delays. Consumers Energy placed my project into “Design Requires Changes” due to multiple installer errors, including incorrect account information, site plan issues, and inconsistencies across required documents. One of the most frustrating issues was that my last name was submitt

• 1★ · around August 2025

  Harassing, 2 weeks and they’ve come to my house 4 times after we have expressed disinterest. They were at our home just 3 days ago, I explained to the salesman that I still wasn’t interested because I would be having a newborn soon, I gave birth the next day, returned home the day after, and the day after that (a Saturday too) the salesman returned asking us if we “thought about it.” We also posted a large private property sign that he blatantly ignored within those 3 days. Scam company, nothing they say adds up.

• 1★ · around August 2024

  I wish I would have researched this company prior to purchasing the Solar Panels. I went into this purchase with some knowledge of what I wanted but I relied on the salesperson to explain the rebates and financing part of the contract since they were the ones that were knowledgeable in this aspect. My rep, Sam Munoz explained that I would receive a rebate from CPS for approximately $2500 and when I filed my taxes that year I would receive the remaining rebate of $11k and that I could pay that towards my loan or use as I would like. I didn't see a problem with paying the amount towards my loan

• 5★ · around August 2023

  Very communicative. I never felt like I was just a one time buyer, Jesse was super patient and informative with the whole process and even our future endeavors with our home. We seriously wouldn’t have taken this route if it wasn’t for Jesse. Very informative, communicative, patient, and overall great person to have in your corner when investing in solar panels.

• 5★ · around August 2023

  Sam is honest and upfront, great communication, and worked for us. Lalo scheduled the appointment and he was very nice as well. I look forward to referring clients to Delta Solar in the future. Thanks for all you do!

• 4★ · around August 2023

  Awesome customer service. They truly listen and are willing to educate me on how solar benefits us. Thanks Delta Solar

Reviewer names are not published here. Negative reviews are shown first because they are the ones a listing hides, not because they are more representative.

• informative staff 14
• helpful sales rep 12
• solar education 9
• energy saving 8
• easy process 6
• energy bill 5
• nice employees 5
• rebate checks 3
• honest rep 2
• smooth transaction 2
• doubt resolution 2

Topics Google derives from the review text, with how often each appears. A frequent topic is not a good one: “price” turns up in praise and in complaints alike.

Google’s own “people also viewed” set, in Google’s order. It is Google’s comparison, not ours.

• Central Texas Solar & Services4.9★ · 55
• Texas Engineered Solar5.0★ · 41
• Limitless Energy Pros4.9★ · 38
• Solar Service4.9★ · 510

The ones without a link have no page here, either because Google does not categorise them as solar businesses or because we could not match the name to a listing with confidence.

• CompanyRating breakdown1–2★Newest review held

• South Texas Solar Systems

  3.1★ · 145 reviews · San Antonio, TX

  46%
  Newest held review this month

• Lux Energy

  4.0★ · 68 reviews · San Antonio, TX

  25%
  Newest held review 11 months old

• Ecolectrics LLC

  4.4★ · 54 reviews · San Antonio, TX

  13%
  Newest held review 10 months old

• Limitless Energy Pros

  4.9★ · 38 reviews · San Antonio, TX

  3%
  No held review in 2 years

• Will Power Solar

  3.8★ · 37 reviews · San Antonio, TX

  30%
  Newest held review last month

• Solar San Antonio TX SS

  5.0★ · 21 reviews

  0%
  Newest held review 3 months old

Ordered by how much we can tell you about each, which is not an order of quality. We do not know which of these is better and would not say if we did.

• —The date above is the newest review we hold, which is not necessarily the newest that exists — we hold a large share of Google's reviews, not all of them.
• —We found nothing on a website for this company that states a warranty, a licence or how long it has traded.
• —We do not verify licences, insurance or bonding. Nothing here has been checked against a state licensing board.
• —We cannot tell you what an installation costs, and we hold nothing about the equipment they fit.

Something wrong here? Tell us and a person will read it.