Mastermind Vehicle Power

John did a fantastic job for us. From initial contact, thru quote, acceptance, delivery and install he communicated along each step. The install and operation went without a hitch and we are incredibly happy with the results. We cannot recommend him more highly.

John installed a full-featured Victron solar system on my RV in late 2025 — would 100% recommend him to others. He's licensed, bonded & insured and arrives with his Mastermind solar trailer for the installation. He was timely and guided me through the whole process. Pricing is clear and very reasonable, with no surprises. You can tell he cares about his work, because he took extra time to make sure the wiring was clean and labeled (see pictures), and he came back on another day to show me how to use the system. Also, just a real friendly guy.

From start to finish this has been hands down one of the smoothest transactions I’ve ever had. John is a true professional. He gives plenty of time for your questions and does everything he can to ensure you’re happy, informed and prepared. I purchased my 1st 5th wheel and from word of mouth referral I found John at Mastermind. He went over every detail and made sure the best and most appropriate materials were used in building me a solar setup that will allow me to travel full time and be off grid as much as possible. John always kept me informed through the entire process. His timeline for the project was accurate. From start to finish it was a quick turnaround once contract was signed and materials were delivered. Super clean work. Easy to understand instructions and willing to give continued support as we go. I couldn’t have asked for a better outcome and hope that you are fortunate enough to get John to do your solar install. The guy simply loves what he does and it shows.

John did a solar install on my Class C Sunseeker. He answered my dozens of questions, along with addressing concerns as I had a RV power dream I want to build up to over a few years. I wanted to make sure I was making the correct choices to ensure everything would be scalable.
He came to where I was parked in Central New Jersey for the set up. He was very patient after the install process he continued to answer my questions. While I took notes and poked around the system to make sure I understood everything.
This is really important to me since when he finished I knew I was heading across the country for a summer camphosting gig where they didn't supply electric. He has been responsive to my questions over text when I had some setting issues with my Victron monitor I had install myself before the solar set up. Along with reminding me that cloudy days things will not charge great no matter how panels I have.
I've now that I've really stressed this system a few months I can safely say I'm thrilled with system, it works so well for my needs.
After 3 years full-time without built in panels this is a huge upgrade for me and John has been an excellent person to work with to make this happen. I look forward to working with him in the spring to add an inverter and more batteries to my RV to accomplish my full RV power dreams.

John did a terrific job updating the solar system on my trailer to add some new panels and update the wiring. It was a bit of drive for him to get to me and he was very good about keeping me updated on arrival time. Work was clean and neatly done in a professional manner.