Tesla Powerwall 3 Installation

Your number one choice for home Tesla Powerwall installations in Reading & Berkshire

Average of 4.9 out of 5 for Service, Quality & Value
MCS Certified - Microgeneration Certification Scheme
MCS Certified - Microgeneration Certification Scheme
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RECC - Renewable Energy Consumer Code
Which Trusted Trader - Highly Rated
NAPIT Approved Installer

Benefits of Tesla Powerwall 3

Tesla Powerwall stores surplus solar energy harvested by your solar panels to keep you less reliant on the grid and more power-independent. Powerwall puts you in control of your energy usage both day and night, keeping a constant supply of clean and green power at the ready in your home.

  • Built-in solar inverter for seamless integration
  • Backup power during outages
  • 13.5 kWh AC nominal battery storage 
  • Up to 11.04kW maximum continuous discharge power
  • Scalable up to 3 additional Powerwall Extender units to give 54kWh of storage capacity
  • 10-year warranty with unlimited charge cycles
  • Continuous power during grid outage
  • Always connected with future-proof updates
  • Real-time data showing energy usage
  • Tesla App to control how you use your Powerwall
  • Floor or Wall flexible mounting
  • Indoor or Outdoor flexible positioning

Official Telsa Powerwall

Tesla
Powerwall 3

Your Local, Certified Tesla Powerwall Installer's In Reading, Berkshire
Reading's, Finest Renewable Energy Company For Homeowners In Berkshire.

Why Choose Tesla Powerwall Over Other Brands

Smart Home Integration: This smart home battery system learns your habits and helps you understand them too. With the Powerwall mobile app, you can better understand your energy usage to help modify your habits.

Day and Night Power: Harness the true power of your solar panels throughout the day and night with this battery storage system. Powerwall will power your home through the night with ease.

Cost Savings: Surging electricity prices can't touch you when you use this home battery system and the Tesla app. This smart system can help you avoid peak rates and charges, helping you learn the best rhythm for relying on solar to save you money.

Weather-Ready: Connected to the National Weather Service, your home battery knows when storms are coming and will start optimised charging beforehand in case of a power outage.

Innovative Technology: Go with Tesla because of its incredible track record for innovation, reliability, and forward-thinking for a greener, more sustainable future.
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Reading's, Finest Renewable Energy Company For Homeowners In Berkshire.

How Much Could You Save with Tesla Powerwall 3?

Our energy storage calculator helps you estimate potential savings and efficiency gains when you integrate Tesla Powerwall 3 with your solar setup.

  • Estimate Your Savings: Calculate your potential savings based on your current energy usage and solar production.
  • Reduce Your Carbon Footprint: Cut down on reliance on the grid and transition to a more sustainable, renewable energy source.
  • Intelligent Energy Management: Maximise efficiency with smart energy management features built into the Tesla Powerwall 3.
Official Picture of a Tesla Powerwall
Installed Tesla Powerwall

Why Choose Tethys Energy for Tesla Powerwall Installation

At Tethys Energy, we've been committed to green and renewable energy since 2013. As an accredited installer, we bring you peace of mind that your Powerwall installation will be done properly the first time, every time. Trusted installers for over a decade make us the right choice for any homeowner.

No-pressure sales model: No pushy sales methods or cold calls from us
Honest, transparent pricing: No hidden fees, no extra, unexpected costs. 
Top-tier workmanship, guaranteed satisfaction
Highly experienced installers with a track record of excellence
Customer-focused approach
Honest advice backed by solid industry expertise
Industry-topping professionalism and project management
Indoor or Outdoor flexible positioning
Your Local Tesla Powerwall Installation Experts For Berkshire & Surrounding Counties

Our Accreditations & Certifications


1. Tesla-certified

Tethys Energy is a Tesla-certified Powerwall installer. This means that our installation expertise for the Tesla Powerwall is backed by a Tesla-quality guarantee.

2. Highest Standards

All Tesla-certified Powerwall installers go through a rigorous training program to ensure the highest standards. Tesla also independently verifies the installer's work and confirms that it's good enough for Tesla products.
3. Our GuaranteeAs a proud Tesla-certified installer, we're happy to offer you not only our guarantee but Tesla's as well as we work together to power your home.

Your Local Solar Energy & Tesla powerwall Experts Across Berkshire & Surrounding Counties

Tethys Tesla Powerwall Installation Warranty

Your Tesla Powerwall system is guaranteed to be free from defects for ten years after its installation.

According to the limited warranty, if your system fails, it will be either repaired or replaced at the company's discretion.


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Your Guarantee

With Tethys Energy, there are absolutely no hidden fees. What's quoted is what it will cost. All our work comes with a 100% no-quibble guarantee of workmanship.

Accredited Tesla Powerwall Installation Engineers In Reading, Berkshire

What our happy customers say

We pride ourselves on our excellent service and believe in always going the extra mile to make sure you get great value for money and the highest standards of workmanship. Read what some of our other happy customer's have to say about Tethys Energy on Which? Trusted Traders here.

Excellent work...

"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."
BJ Thompson

Prompt and efficient...

"Jason did a great job of getting my PV array back working. I have recently taken over the array from another family member, so did not understand anything about it except that it wasn't working. Jason came, quickly figured out what the fault was, and fixed it with no fuss or bother."

Crispin Keable

Fantastic Service...

"Jason responded to my request for a second opinion promptly. I was "cold called" by a company offering a free check on my 6 year old solar energy system. They then tried to tell me the system was working at 72% capacity, that they would replace my inverter and install optimisers for £5,500 but special offer if i signed a contract there and then for £4,500. Needless to say I declined. I contacted Which? Trusted Traders for advice and was given Jason's name. He checked my system, found no problems and told me if anything it was performing better than expected."

Diana Benton

Got more questions?

Call us today to learn more about the Tesla Powerwall system, more details about its installation, and more information about moving forward into a more energy-independent future for your home.