Tethys Energy Ltd

From the moment I contacted Tethys Energy I experienced a polite and courteous team. They always turned up on time, answered phone calls and emails promptly. Once on site the team always kept me informed of progress. The installation looks neat and tidy. They took time to explain how the system and app work. Follow up paperwork came within a matter of days. I would have no hesitation in recommending Tethys Energy.

Having had my solar panel system for 13 years and believe them to be the best investment I have ever made I decided to use Tethys Energy Ltd to carryout an audit and clean of the system. The team of two led by Chris arrived on time and carried out the work in a most efficient and friendly manner. Further to verbal feedback on the day I duly received the audit report online within the same week. The report identified that the RCD unit on my system although operational was not correctly rated therefore if an earth fault were to occur within the PV inverter it may not trip. Further to contacting Jason Fuller for clarification, I used his team to return and replace the said RCD unit which they did on a day and time that suited me. The service provided by Tethys Energy Ltd was top class and I would certainly recommend them.

I contacted Tethys Energy when I discovered a problem with my solar pv eps. They responded promptly and arrived on time. Even though they hadn't installed the system, they demonstrated excellent knowledge and confidence in all aspects of solar pv. After thorough fault finding, Jason fixed the problem and tested everything was working. Everything was left clean and tidy. From start to finish the service they provide is professional, friendly and reliable. I can certainly recommend Jason and his team.

In 2023 we had a solar pv system with battery storage fitted, but not by Tethys. The system works well and subsequently we were recommended to have an iboost+ fitted to heat hot water using excess energy. I thought the fitter (3rd party not part of the install team) was competent, but turned out to be a plumber with no solar experience....the iboost+ didn't work. I called numerous electricians for help, but as soon as solar was mentioned they weren't interested. Having looked a bit more carefully for an electrician I emailed Tethys, simply stating the above and not hoping for much. Jason responded within about 30mins and said they would have a look and it shouldn't be a problem. I was so pleased to get such a prompt and positive reply. Chris duly attended a few days later, tested, found a couple of faults, purchased a replacement part, fitted, tested and working! This was just a small job, but I was really impressed with the can-do attitude and professional way it was handled. I wouldn't hesitate to contact Tethys should we require any maintenance on the array going forward.

From my initial contact with Tethys Energy the administrator was most efficient in keeping me updated with Jason; MD involvement to survey, quote and install 9.5kw battery and associated equipment to my existing PV array of 12 panels. Especially since February 2024 more economic now that 20% VAT no longer applies to just battery installations. The workmanship is first class and working in the cupboard under the stairs without any complaints is to be applauded. I hope copious supplies of coffee helped! Thank you Jason and your team.

This was a tricky job with multiple trades involved. Jason and his team worked to make it super easy for me to get all the work done. The work they did on my solar panels was perfect and remedied many faults the original installers had left. An excellent team doing first class work.

I wanted to add additional batteries of the same type I already had installed and contacted Tethys. I received a prompt response and exchanged information about my current installation and requirements. Jason offered a competitive quote and we scheduled the works. Jason and his team kept in touch between booking and installation date and the works were completed efficiently on the day.

I chose Jason and his team at Tethys Energy following a recommendation from a close friend who has been very pleased with his solar panel installation and service, completed several years ago. Every aspect of their service, from initial survey, recommended system specification, installation and commissioning was first class. As a non technical person, I found Jason's advice and explanations very helpful in reaching my decision on how to proceed. The installation team were polite, hard working and cleared up each day. Admin back up was efficiently, politely and promptly provided by Louise in the office. I have no hesitation in recommending Jason and his team.

Our energy supplier surveyed our property using Google maps and told us our roof was not large enough for solar panels so we went to Jason for a second opinion. He visited us and surveyed the property and talked to us about what we wanted to achieve and then sent through a proposal. We liked his ideas and his technical competence and the fact that he had suggestions for us that we had not even considered. We agreed to proceed with the installation. Jason and his team arrived when they said they would, built the installation in the time they said they would and charged us exactly what they had quoted. They were incredibly professional and courteous and a pleasure to have around the house and their communication with us was outstanding from start to finish. We now have 16 full size panels on our roof, a GivEnergy inverter and battery, an Eddi diverter and full and complete certification and documentation. I would recommend Jason and his team to anyone considering a solar installation.

Jason and Chris came to upgrade our GivEnergy setup to provide backup to the entire house in case of a grid power cut, this was not installed originally when Octopus installed my solar system, but I wanted to have it as we are now 100% electric house. Jason and Chris had never done the Island mode before, but they understood my requirements and got the documentation from GivEnergy to do this install and provide me with a solution that worked for my needs, and it was absolutely great. All worked completed as expected, with a very small delay due to some additional things and cable runs, but all done quickly and neatly as expected. Chris was always communicating clearly how things were going and when power would be down for tests, etc, so all in all a great service.