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    Greentech Renewables

    5.0 (1 review)
    Closed 8:00 am - 4:00 pm

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    3 years ago

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    Windfree Solar

    Windfree Solar

    (12 reviews)

    Sauganash

    Deceptive business practices!! A couple of years into solar…read morepanel ownership. Here's some things they don't tell you when they sell you a system for $25,000. Your warranty isn't worth the paper it's printed on. Whenever there is an issue with your system, you will get a notification that tells you there's an issue, but doesn't tell you what the issue is, that requires a technicians visits which is $180 I recently had a panel that is under performing, which, after a technicians visit deemed to be a manufacturers defect. So my kick ass warranty should cover this right? Wrong! The manufacturer will replace the panel, but I'll have to pay for shipping, which is approximately as much as a brand new panel would cost. Also, I have to pay for a technician to install the replacement panel. So when the sales person sells you peace of mind that the warranty will cover you - don't believe a word of it. I have long recommended solar panels to my friends. I have also long recommended not going near this chop shop enterprise. They are Temu version of what a solar company should be. Project management is a joke. See my earlier review for that debacle. Product support is an even bigger joke. I wish I could give zero stars.

    My experience with Windfree Solar Company has been awful. Consider carefully reading the contract,…read morenoting if subcontractors would do the solar panel installation, if so, will Windfree cover losses, if applicable. In addition, make sure all the permit is pulled with your municipal, along with the correct schematics for the solar panels, both were an issue here. After speaking with Adam Perri, Director of Windfree Solar, I was told, due to the workers were subcontractors, the destruction of my personal outdoor equipment and garage was not Windfree problem. All the woes, leaves me with the savings from the schematics of 77% savings, panned out to 18%. Monitoring for the solar panels based on the information I was given was a country outside the U.S., with no option to opt out of 3rd party advertisement. No thank you! Value=NONE!

    Certasun

    Certasun

    (21 reviews)

    After posting my review last week, I was contacted by an executive concerning my experience. He…read moreinformed me that ComEd had changed the rules for the rebate from the time I was quoted and when the installation had completed. Initially, my rebate was approved for payment before ComEd went back and rejected it. Certasun had been trying to get ComEd to reverse their decision with no success. The main issue was the total lack of communication from Certasun, which the exec assures me will be changed. In order to make me whole, Certasun has sent me a check to cover the rebate.

    Update on 4/27/26 Only by writing my honest review did I get…read morethe attention of the executives at this company and my phone call returned today. They decided to refund my $1800 for removal and not pursue working with me since their service could not "meet my satisfaction." Expecting a response within a week is reasonable for any active business this size. If you read the review of others here you will conclude that I am not the only customer who has experienced lagged and/poor communication. I suggest you improve your support workflow in order to thrive in this industry. In the few hours that have gone by, I was able to get a quote and schedule service with another local company. Original Review Do not rely on this company for good customer service from the operations end, good communication or follow-up. They require you to pay an invoice before any work is done. However, when it comes time to schedule the service no matter how many messages you leave or emails you send, don't expect to hear back from them. Research and find another company (if you need work done expeditiously)!

    Kapital Electric - Charger in garage

    Kapital Electric

    (123 reviews)

    I decided to go with Kapital Electric as my EV charger contractor of choice through word of mouth…read moreand was not disappointed I originally called to inquire about a rebate program associated with ev charger installations in specific Chicagoland areas and they made the application process really seamless. The staff is very responsive - theyll call, email, and even text you to work out anything and communicate as needed They give you the option to virtually provide photos of your setup for the initial proposal of an installation without requiring them to send someone to inspect things, which saves time for both parties. Once received, they'll verify the feasibility of the installation and draw up an official proposal for your review. I had a couple prerequisites to handle prior but once ready, they are quick to get back to you with all of the official documents From there, theyll send the engineers/electricians down to do the installation. Vasili handled my job and did amazing work. Super friendly and knowledgeable, great conversation, finished in 2 hours. He walked me through the game plan, insisted that I prioritized what location fit my preference over what would be easier to do, and executed it independently in a timely fashion. Overall very satisfied with the service from Kapital Electric :)

    Dealing with Kapital Electric was a very smooth experience. I had two EV chargers installed in my…read morenew garage and now I can safely charge both of my vehicles at 11.5 kW/48 amp at the same time. I'm very pleased that thanks to Kapital Electric I'm ready for the electric future!

    Nelnet Renewable Energy

    Nelnet Renewable Energy

    (14 reviews)

    They were pretty slow coming out to install, but with some pushing and having to keep contacting…read morethem they came out and got it installed. The installation itself was fast and they were very nice. Overall we're happy with our solar panels and they did a great job on cleaning up after themselves.

    I recently had a solar system installed at my house working with GRNE Nelnet. The sales person…read more(Ryan Suchsland) was fairly okay given he was responsive and didn't employ high pressure tactics as typical with other solar sales people. The installation on the other hand has been super frustrating. The project manager for my site (Sam Evans) has been very dismissive of several issues I've encountered and overly defensive. He barely reads the email messages with a goal to understand but too quick to be dismissive. One of the issues I repeatedly raised eventually got fixed by one of Nelnet electricians that came to my house for a different reason. The electrician was patient enough to listen, acknowledged the issue and resolved the issue. Sam for whatever reason refuses to acknowledge that there is an issue and would rather argue to the ends. This has left a bad taste in my mouth and I wouldn't be recommending working with Sam Evans if you have to work with Nelnet. If you value your time, look elsewhere as I was forced to micromanage the process almost every step of the way. Now I'm probably still going to have to continue micromanaging this process to ensure the SREC paperwork is filed correctly as some other reviewers indicate the potential for mismanagement there. I certainly wouldn't trust that Sam would do a mistake free job on mine. The reason I have not given this review a one star is because there are some other decent people in the company that have done their jobs well, alas a few bad eggs have ruined my experience overall. It remains to be seen if I'll get value for my money. I'll be updating this review as necessary.

    Passive Power

    Passive Power

    (1 review)

    From first contact to the final installation of our solar panels,Mentor showed highest…read moreprofessionalism and excellence. Because,I had no experience on solar system,mentor provided all of the information repeatedly with respect. He worked with us on a PERSONAL level,guided us throughout the process.five stars all together and a big THANKYOU. Mentor is a real MENTOR and I highly recommend him .

    From the owner: Our solar business specializes in providing residential customers with high-quality and reliable…read moresolar energy solutions. We understand the importance of transitioning to clean, renewable energy, and our goal is to make it easy and accessible for homeowners to harness the power of the sun. Our team of experts will work closely with you to assess your energy needs and design a customized solar system that fits your home and budget. Our solar systems are designed to be both efficient and cost-effective, offering homeowners the opportunity to save money on their energy bills while reducing their carbon footprint. We use only the best products and materials, and all of our installations come with a comprehensive warranty for added peace of mind. At our residential solar business, we believe in providing our customers with exceptional service and support every step of the way. Whether you are looking to reduce your energy costs, become more energy independent, or make a positive impact on the environment, we are here to help you achieve your goals. Contact us today to learn more about how we can help you harness the power of the sun!

    Greentech Renewables - solarinstallation - Updated August 2026

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