Tethys Energy Ltd

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.

An almost perfect project from start to finish - just a couple of teething problems post commissioning which were quickly sorted. Can't thank the guys enough. Installed solar panels and an inverter and battery in four days.

I had installation of solar panels, battery with power cut backup and hot water diverter. Jason did a full survey first and explained the options before sending a detailed proposal with estimates of power generation, potential cost saving and price for the installation. The deposit was covered by a protection scheme and the contract documentation very thorough. It was several months between the quote and work starting, but I was happy to have a long lead time in view of holidays and opportunity to consider alternative cable routes in my 1950s house. Work started to plan on a Monday and continued diligently through the week with the team of two joined by Jason on Friday to commission the system. All very well organised, precise, neat and tidy. My requests / ideas were listened to and after the first day I felt happy to go out to my usual activities while the job continued. Very happy with the work and performance of the installation.

A thoroughly professional and polite group of people led by Jason. They all seem to be experts in this field. Nothing was too much trouble and the install never felt intrusive which it could easily be with the roof , loft, and most of the house in play at some stage. The system is now humming along with perfect weather during and after the work. Eddi’s heating water, Zappi charging car and Solaredge invertor and batteries ensuring that both electricity and gas meters have been stationary since commissioning. Jason was very busy when we enquired last year and we had to wait our turn but we were so lucky not to have ventured elsewhere after curiosity got a couple of salesmen in during the interim. I would be surprised if anyone Jason works for could have expectations that go beyond what he will provide.