Sustainable Energy Systems LLC - Frederick, Maryland

Josh Ranck

Awesome company to work with. Had a great experience with SES. Got a new roof put on my barn, then had the solar installed right after. The crew was professional, and did a great job with the installation. They even came out to my job 2-3 additional times to diagnose and fix an electrical issue that we had between the meter and the barn. The issue was not something they caused, it was a poor connection overhead from the person who ran the electric. Even though it wasn't their responsibility they made sure everything was fixed and in working condition. Highly recommend, 5 stars.

JaneEllen McLaughlin Saums

Sustainable Energy Systems installed 15 solar panels on my townhouse roof early this year and the process was smooth and uncomplicated. The technicians consulted with me about every step that had a potential impact and were responsive when I asked questions or needed clarification. I would recommend them to anyone who is looking for a reputable and knowledgeable company with highly trained employees.

Ian King

SES has done an absolutely fantastic job setting up and installing a solar array for my property. They were timely courteous professional and cost-effective. I wish all people providing Services would reach the level of SES.

I would highly recommend working with them for any solar project.

Gary Schierman

Unethical and Extortionist practices -

14 months ago, my wife and I had solar panels installed on our home. The contract was brokered through a third-party (Zuna Solar - based in Texas). The installation went well, and everything is operating as it should. However, during August 2023, we experienced hail damage to our roof which has resulted in leaking that is slowly growing and causing damage to our living room ceiling. We had the roof inspected and confirmed the best way to deal with the leak is to have the roof replaced. We filed a claim with our homeowner's insurance and have had our claim approved and funded. With these funds, we contracted with a Northern Virginia roofing company to replace the roof.

In order for this to occur, we need to have the solar panels dismounted, and then remounted after the roof replacement is completed. This is provided for in the contract on page 7, in the paragraph with the heading "Removal and Reinstall". Please note that the estimated cost on the contract is listed as "the greatest of $135 per panel or $2,700", although the contract also states this is subject to change.

When we contacted Sustainable Energy Systems, they initially provided an estimate for the dismount/remount for a figure of $13,800 (drastically higher than "the greatest of $135 per panel or $2,700" figure provided in the installation contract), then went on to state that they would perform the work only if we canceled our contract with our current roofing company and paid SUSTAINABLE ENERGY SYSTEMS, LLC to perform both the roof replacement AND the solar panel dismount/remount. I refused to accept either the radically inflated cost for the dismount/remount work or to cancel my contract with our current roofer (we have already paid a 30% deposit), so we are no longer in discussions with Sustainable Energy Systems.

I will never do business with them again due to these unethical and extortionist business practices.

David Isenberg

In 2015 I installed solar panels at my home. Recently I decided it was time to put in a batter backup system, in case the grid went down. After researching it I decided to go with a lithium battery to back up essential loads. I chose SES and I am extraordinarily happy that I did so.

I don't use the word "extraordinarily" lightly. I've had enough contractors doing work at my home over the decades I've lived here that I know the difference between, bad,, average, competent, and the rare one that you want to take home to meet your mother. Happily SES is in the last category.

EVERY interaction I had with them was a joy. From meeting one of their sales reps at a Solar United Neighbors event, answering ALL my questions, both on the phone and by email (and I'm a Capricorn so I ask a LOT of questions), doing a site survey and mapping out the relevant circuits, , answering MORE questions, arranging a date of my choosing to do the installation, putting in the battery/gateway and sub panel, doing all the necessary wiring, registering the battery so the app would work which was the one thing that presented a bit of an issue, as the people at Tesla weren't easy to reach by phone), making sure the app worked properly, to arranging an inspection by the county inspector (which took place this morning via Facetime on the phone and went something like this: "Can you see that? Yep, looks good; I'll send you the paperwork later." It took all of 90 seconds maximum).

I can't recall any other time in my life that I have been so happy to pay someone thousands of dollars.

In my experience it is highly unusual where all the staff is so genuinely enthusiastic and upbeat (if I didn't know better I'd think they were on Prozac, but no, they just believe in what they are doing) and where the field people and the management all get along. In fact one of the co-owners was one of the installers.

Look at it this way. If SES was a contestant on America's Most Eligible Bachelor they would be the one you choose.

So, should you go with them? If you value competence, professionalism, excellent pricing, willingness to go above and beyond, and a positive can do attitude., then, YES, ABSOLUTELY, BY ALL MEANS, and INDUBITABLY.

Oh, by the way, I rarely write good things about anyone so for me to have written this means, as Tony the Tiger used to say, "They're not good, they're GREAT."

Matthew Ruffner

The install crew did an excellent job Andrew and Cam made sure the job got done right. They was on time and the entire crew worked hard.
Jeannettee Ramirez was a super big help on my Srec credits and all other questions I had during the process she made everything very easy.
I think the only real problem I had is with the service side 2 times never calling me back when I had questions about the inverter sizing. My system is 11.760kw and I never see any better then 10kw because of the inverter.
Overall I give the install crew 5 stars and also
Jeannettee 5 stars for helping me with any questions I had. I appreciate that
But there service department needs some
Improving.

John Beutler

The SES gang did a great job estimating, designing and installing a 32 panel array on our residence in Frederick. We signed a contract in September, needed to have a new roof installed and did some insulation work before the PV array could start installation. Almost all of the SES work was finished by the end of the year, and we started generating KWhs in late January. There's a lot of paperwork for this sort of job, so I feel it went along as planned with no overages or screw-ups.

Lori Bard

My situation is similar to another review. I just need answers and assistance. The roofing job was not satisfactory and my mapping that we need to watch according to contract has not been completed so if I have a panel not producing, I would have no way of knowing. We signed in July of 2022 and it is now October 2023 and I am still waiting for completion and satisfaction. I also need panels moved and they knew this BEFORE installation; however, I was quoted $100 per panel NOT $300. I paid for electric and solar power for two months before my solar was ever turned on. I too will delete the post if someone would just communicate with me and carry through satisfactorily the contract!