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Tesla Powerwall Installations

Cahill Renewables is one of the UK’s premier companies for Tesla Powerwall installations. As the only UK Tesla-certified Powerwall installer with HIES accreditation, we can deliver renewable energy solutions quickly and efficiently so you can level up your green game.

Contact us today to discuss your Tesla Powerwall installation:

  • 0% VAT on all installations
  • Available with or without solar
  • Price match guarantee, never beaten
  • Whole house power cut back-up
  • Remote monitoring and support
  • Tesla Powerwall Certified Installers
by 100% of customers


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Tesla Powerwall 2: A closer Look

The Tesla Powerwall 2 is the crème de la crème of home battery storage solutions, particularly when paired with a solar panel install.

  • Energy Storage: Capture excess solar energy during peak hours for use when you need it most.
  • Cost Savings: Charge your Powerwall during off-peak times with lower energy rates and use stored energy when rates are high, reducing your energy bills.
  • Sustainable Living: Reduce your carbon footprint by maximizing the use of renewable energy in your home.

Why the Tesla Powerwall 2 is our favourite solar battery

Massive Storage

With 13.5kWh of usable capacity, the Powerwall 2 can power the average home for a full day.

Efficient Charge/Discharge Rate

A 5kW charge/discharge rate means your home stays powered efficiently. Double up with a second unit for an even greater rate.

Storm Watch

Prepare for outages with this feature that maximizes energy storage in anticipation of severe weather.

Whole-Home Backup

In the event of a grid failure, the Powerwall 2 ensures your home's power needs are met.

HIES Accreditation

We're the UK's only Tesla Certified Powerwall installer with HIES accreditation

Peace of Mind for 10 Years

Backed by a 10-year warranty, your investment in a Tesla Powerwall 2 is protected for a decade.

How Will a Tesla Powerwall Benefit Me?

When your solar panels produce more electricity than your home requires, the surplus is stored in the battery, instead of being sent back into the grid. Then, when your panels aren’t producing enough electricity, the Powerwall delivers the stored energy from earlier that day.

Or install your Tesla Powerwall without solar and charge it up during a cheap, or off peak period. When the ‘normal rate’ kicks back in, the Powerwall can deliver the cheap energy stored from earlier.

And if that wasn’t enough, when it comes to installation, Cahill Renewables is recommended by 100% of our customers, boasting a perfect 5.0 rating on Trusted Trader. From the initial consultation to the final installation, our team ensures a smooth, efficient, and professional process, earning us glowing reviews across the board.

April 10, 2024
Got a 5kw solar and 8kwh battery system installed by Cahill and had a great experience from start to finish. Would 100% recommend them. Customer service was top notch and the installation was quick and straightforward. They made it easy and while it’s still early days, it’s good to see how much you’re generating and saving with the metrics in the app. 5 star!
Emma PS
Emma PS
March 21, 2024
Cahill Renewables installed my solar and battery solution November 2023. They have been incredibly professional and prompt at every stage from initial enquiry, installation and after care service. They were so efficient with the paperwork, which enabled me to be exporting back to the grid within 4 weeks. I am really enjoying being a solar power user.
Garth Sylvester
Garth Sylvester
March 19, 2024
We chose Cahill Renewables to fit our Heat Exchanger as of all the people we talked to, they were by far the most professional in their attitude, explaining exactly what we would need. The team who came to fit it were there on time and got straight to work. They made a very neat job under quite difficult circumstances as we have a small bungalow with not much room to move anything about. Apart from providing coffee and tea we didn’t have to lift a finger, for which, now getting on in years, we were very grateful. They made an extremely neat job running the pipes under the house, so, no ugly fittings running along skirting boards, although of course this made the job harder for them it was their idea and we were extremely grateful. The whole service from beginning to end was extremely professional. We wouldn’t hesitate to recommend Cahill Renewables in the future.
Robbie Tindal
Robbie Tindal
February 26, 2024
Having decided to have solar panels installed Cahill Renewables were one of five companies we approached for a quote. Right from the start we were impressed with their response, their efficiency and willingness to listen to what we wanted and to answer all the questions we had. The quote we received was competitive and having agreed a date and timescale for the work it all went ahead as planned. All of the guys who came on site were polite, considerate, careful and professional. They worked extremely well as a team to ensure the job was completed in a timely manner and kept the site clean and tidy. We enquired about having some additional electrical work done linked to the solar installation and this was scheduled to fit in with the existing work whilst they were on site. We have no hesitation in recommending Cahill Renewables to others. A great team in all respects.
Airsoft GB
Airsoft GB
January 31, 2024
Cahill Renewables have been absolutely great installing our home solar system. They have been incredibly helpful from the initial quote, interpreting our needs to provide the final quote, installing all the panels and battery and then patiently explaining how the Tesla battery system works. A very helpful and competent team which we throughly recommend.
Stephen D
Stephen D
January 22, 2024
Joe was incredibly efficient, patient and helpful. Couldn't praise more!
CBF Lazaro
CBF Lazaro
December 5, 2023
Ended up not going ahead due to technicalities and planning permission requirements on my specific situation, but cahill renewables were the ones to go with if I did go ahead. Josh was polite and knowledgeable, got a very fair quote from them for a ASHP install and the quoting process was very pleasant and non pushy.
Praful Lakhani
Praful Lakhani
November 1, 2023
EXCELLENT - Every team from Sales to Scaffolding to Electrical to installers and tilers were just exceptional. Ours is a slate roof and required more careful work and matching. THEY EXCELLED in every respect. . They arrived on time, were most courteous and very clean and tidy.
Peter Laurence
Peter Laurence
October 23, 2023
A thoroughly pleasant and efficient company who were a great help throughout the solar panel "process". Great products, professionally fitted and our questions answered very promptly. A pleasure to do business with.
Jonathan Farnhill
Jonathan Farnhill
October 18, 2023
I have just had solar panels, an inverter and batteries installed in our house, and the service and support we received from Cahill Renewables was first class at every stage of the process. I have no hesitation in recommending them as a highly competent provider and installer of PV systems

Ready to Install your Tesla Powerwall?

If you're interested in buying a Tesla Powerwall, installing a Tesla solar battery, or simply want to know more about Tesla Powerwall's cost and benefits, Cahill Renewables is here to guide you every step of the way. Our team of Tesla Powerwall installers is ready to tailor a solution that fits your specific energy needs.
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