Sustainable Energy Systems LLC - Profile & Reviews

From start to finish this company was professional, attentive and courteous. They had well laid out plans and everything was explained in detail. It was obvious they have been doing this for a long time. No pressure sales tactics or up sales. Just an honest company that prides itself in job well done.

I actually contacted several other companies and decided SES was the best among the lot and I was not disappointed. Every employee was professional and took pride in their job. I usually would point out something that went wrong or could have been done better but I literally can't think of one thing to complain about which is rare.

If you in the market strongly suggest you speak with SES before making any final decisions. They will answer all questions and will wait patiently for you to call them back which is exactly what I did.

We had long wanted to install solar and checked out a number of installers in the Northern VA area. We narrowed it down to 3 and began reference checks and requested proposals. Sustainable Energy Systems had the highest reviews from those who had used them and the best price. All of the employees we dealt with were completely transparent, extremely knowledgeable, and very willing to answer the many question we had. Our sales representative, Kenny, was very low key which was in contrast with other companies who wanted to rush us to sign a contract. We have been installed with 30 REC panels and 2 Tesla Powwerwalls for going on a year and the system has performed with high marks: generating energy at the levels predicted and operating seamlessly with the Tesla powerwalls when the power grid fails from time to time. I would highly recommend SES and actually we are thinking about expanding our system to accommodate a future EV.

After quite a bit of research on material, service, and of course price, I hired Sustainable Energy Systems to install a large 18kW residential on-Grid roof system. They encountered some obstacles with county permit issues but persevered well through them. The installation was met with some unexpected work errors but I'm sure nothing ever goes perfect. They resolved/overcame the issues very well with a focus on making me, the customer, happy. I highly recommend Sustainable to anyone out there looking to invest in moving towards residential energy independence! A small ding on Responsiveness as I felt they could have communicated better.