Tethys Energy
Local, trusted solar energy company in Reading — 5-star rated on Which? Trusted Trader and Google
13+
Years in Business
19
Customer Reviews
60 km
Service Area
2-10
Employees
SurgePV Score
About Tethys Energy
Tethys Energy is a solar energy company based at 9 Queen Anne’s Gate, Caversham, Reading, RG4 5DU. Founded in 2013, the company specialises in the design, installation and maintenance of solar PV systems, battery storage and EV charging solutions for homeowners across Reading, Wokingham, Bracknell and the wider Berkshire area.
The company holds MCS, RECC and NICEIC accreditations and is a certified installer for GivEnergy and Tesla Powerwall systems. Tethys installs panels from REC and Jinko alongside inverters from SolarEdge, Solis and GivEnergy. The team also offers Myenergi charge controllers and power diverters for hot water storage optimisation.
Tethys Energy holds a 5-star rating on Google from 19 reviews and is rated 5 stars on Which? Trusted Trader. Customers consistently praise the company’s communication, competitive pricing and quality of workmanship, with many noting the team’s willingness to explain technical details and recommend the right system for each property.
Service Area
Tethys Energy serves the following areas within a 60 km radius:
Contact Information
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Services Offered
Certifications & Accreditations
Partner Manufacturers
Panels
Inverters
Batteries
Warranty Coverage
25 years
12 years
10 years
What to Expect: Solar Installation Process
Initial Consultation
Free site survey and system design
Quote & Design
Detailed proposal with costs and savings
Installation
Panels, inverter, and wiring (1-3 days)
Inspection
Building control sign-off and DNO notification
Go Live
System commissioning and handover
Customer Reviews
5
19 reviews
Tony R.
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.
Sarah M.
On time, on budget, professionally done and set up, including replacement of an inverter which was broken on arrival. Top of the line equipment used throughout.
David L.
We are very happy with our solar installation. Tethys are quick, efficient, informative and friendly. Every aspect of their service, from initial survey, recommended system specification, installation and commissioning was first class.
Frequently Asked Questions About Tethys Energy
What services does Tethys Energy offer?
Tethys Energy offers Solar Installation, Battery Storage, EV Charging, Maintenance, Monitoring.
Is Tethys Energy MCS certified?
Yes, Tethys Energy is MCS certified and also holds RECC, NICEIC certifications. MCS certification means they meet industry standards for solar panel installation in the UK.
What areas does Tethys Energy serve?
Tethys Energy serves Reading, Wokingham, Bracknell, Henley-on-Thames, Maidenhead. They are based in Reading with a service radius of 60 km.
What warranty does Tethys Energy offer?
Tethys Energy offers 25-year panel warranty, 12-year inverter warranty, and 10-year installation/workmanship warranty.
How are Tethys Energy's customer reviews?
Tethys Energy has a 5/5 rating based on 19 customer reviews. Customers consistently rate them highly.
How long has Tethys Energy been in business?
Tethys Energy was founded in 2013 and has been in business for 13 years. They are one of the more experienced solar installers in their area.
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