Not sure about great experience. Still trying to learn about settings as some it terminology is confusing and foreign to me. However the system appears to work. Just waiting for a power cut to see if the gateway works.

Expecting electrician today to repair Powervault. They didn't arrived so I phoned Powervault.
Answerphone message says they've gone into administration.

I have had a good experience with Trustpilot using their P3 battery for three years.
Recently I took advantage of their offer to upgrade to the newer P5 range, including an extra 4kwh of capacity, which has been a revelation.
The unit itself uses much less power, which creates a noticeable saving. It charges much more quickly. The discharge is pretty much the full theoretical capacity, whereas the P3 only achieved this under ideal conditions. Finally, the unit is installed outside the house, rather than inside - a big advantage.
All in all, a very good experience.

Had Powervault batteries in '23 as a separate addition to our solar panels and these have been working well with one minor problem that was quickly diagnosed and resolved.
Now have another problem that Powervault have not responded too, and now don't answer phones or reply to e-mails.
A little investigation has shown Powervault to be in administration (21/11/25).
Maybe they'll get through this and resume their normal great service but in the meantime I've got thousands of pounds of equipment doing nothing.
Anyone know an engineer?

Having the inverter and the battery combined in a single unit is great, particularly when sited inside the house. The display light strip gives an immediate indication of the operational status, and the comprehensive app allows the system to be monitored in detail from anywhere with internet access.

Addition of a battery, gateway unit (auto switching for power cuts) and a Zappi EV charger were all completed in one day as planned. The installation is neat, and mess free.
Having now switched to an EV tariff we only use off peak rate from the grid from midnight until 5 am. The battery is a 15 kW one and easily supplies our needs for the rest of the day.

When I had a problem with my system at first it was difficult to get a technical person to address the problem. Then I spoke to Muhammad Butt and service changed into a great experience . If only other companies had knowledgeable customer facing staff like this life would be so much easier. No AI can replace good personal service

I write this review to provide an update about my experiences with Powervault.

I have been a customer since July 2023, and had an excellent experience at that time.

Regrettably, I left a less favourable review at the beginning of November 2025 following a battery storage system breakdown which has now been addressed in full.

Upon reflection, I feel my negative review was both unfair, disproportionate and was the result of me having a bad day as well as being frustrated with the time frame that repair seemed to be taking.

I do not like leaving negative reviews and apologise for this, and feel that it is only right that I provide this amendment.

To be fair, I have been very impressed with my battery and the hybrid charger, and find the portal interface very helpful. A part failure however resulted in the battery being out of action, and for a short time I was stuck in limbo between the installer and Powervault.

Muhammad at Powervault has been excellent - he contacted me, performed remote diagnostics and facilitated replacement components under warranty. I did not really appreciate the time required to review the diagnostics, as well as producing replacement parts, and the frustration came when I received a generic email saying it might be 4-6 weeks for replacement parts.

To be fair, Powervault responded very quickly once the diagnostics were reviewed, sending the replacement components directly to my house by overnight courier. They liaised with the local installer and installation was undertaken this morning.

Muhammad contacted me for some final checks to re-initialise the system, confirming the system to be fully operational and working as expected.
Bobby has also been contactable throughout, with both Muhammad and him taking the time to explain the processes and operation of the battery system.

Upon reflection this service has been excellent.
Whilst being without the battery was frustrating, I now realise that some things just take a bit longer. I left an unfair and negative review due to frustration. Reflecting on this however, the level of customer service, diagnostics and attention to detail has been tremendous, and I am very grateful that I chose to run with Powervault. Whilst I had a choice of some Chinese manufactured batteries, I think this is a very good example of you get what you pay for.

I was wrong to leave a negative review, and I hope that this unprompted and updated review goes some way to rectify this situation.

To provide reassurance to anyone reading this review, I am planning to stick with Powervault and looking to upgrade my battery system from from an 8 to 20 kWh system.

Their batteries are truly amazing and will really help me generate quite a lot of money by sending my excess solar electricity back to the national grid.
Their help, support and technical expertise is stupendous and their batteries are exceptional and perfect .
Thanks Powervault.
Kind regards,
Mr Clive David Smith Esq

Great product very pleased

Really good installation experience with an installer who went the extra mile. Technical support is generally good, and have helped solve some teething problems regarding monitoring issues caused mainly by the broadband providers issues. Useful app gives good data views but can be slightly cryptic at times.

The installation went smoothly and the equipment is working well. Powervault also loaned a TP link hub for a few days while we were waiting for our full fibre connection to be installed.

Easy to get in touch. Fast response to questions. What would be nice if you could give What 100%is equal to on app.
Eg 100%=4kw
Eg100%=8kw and so on

Equipment working well and Powervault staff very helpful following installation.

Powervault themselves installed a P5 in May 2025, the installation needed to be corrected by a third party electrictian as the earth rod they installed was non compliant, it failed a resistance test by my own electrician, reported 220 when it should be sub-200, and the cable and ducting was left running across about 3m of grass above some steps!!

Had the first power cut today from the grid and the gateway does not work so was left without power for several hours. Since then have been unable to get the batteries back online despite following the documented process to restart the unit, so am blind to battery % etc until they can send an engineer next week!!

The software, particularly Smartstore is far from smart and I have pointed out numerous failing to be told that new software is in development…that was a few months ago now and still waiting to see improvements.…

Overall disappointed as the system is currently not meeting my expectations.

EDIT 27/9/2025:

An engineer visited this week as planned but was unfortunately unable to find any issues with my installation, specifically the gateway which provides the UPS cutover in the event of a power cut. The only reason given is that the house must have drawn greater than 5Kw from the battery after switchover, which I find hard to believe as there was no-one home at the time, no high power appliances scheduled to power on, the sun was shining and my solar panels were generating 4kw at least, the batteries were at 100% and in the run up to the outage I was exporting almost 3kwh of electricity….

That said, on Friday following the engineer visit and my my 1 star review from the weekend I was contacted by Mo in Powervault customer services to discuss the gateway issue. As such Mo has enabled debug logging on my installation so that in the event of another power cut and the unit going offline line as it did recently then they should be in a position to better understand what caused it. Additionally, Mo said that in a worse case scenario, they would be able to replace the gateway at no cost to myself.

Although not ideal as we haven’t got to the bottom of the gateway issue yet and I am still waiting to see improvements in their SmartStore software I have, on the back of the call and assurances from Mo, upgraded my review to 3 stars.

I will revisit this review following the next power outage or any further feedback from Powervault themselves.

I have 4kW of solar (10 years old)and run an air source heat pump. I had a P5, 10kW battery installed and then upped it to 20kW as the results were so good. I ran the manual mode during the first 6 months and then changed to Smartstore. I'm on the Feed In Tariff (FIT) so get paid for my generated kWh's. On doing the calculation for a 12 month period of FIT payments I'll end up at least £200 in credit for my electricity.
Happy Days. NO BILLS.
Service engineers help with even the slightest request fantastic.
Can't recommend Powervault highly enough.

Guess I must be the unlucky one here. The system has gone down twice in the 6 months I’ve had it installed.

I’d like to update this review with a 5* as it’s really good when working. Problem is, no one from Powervault is returning my calls.

Update: My installer got through to Powervault and the problem has been resolved for now. As promised I’ve upgraded the review to 5 as it really is a good system.

Further update. The system has now failed for a fourth time in as many months. Clearly not fit for purpose. Can provide dates for failures if required.

Additional update: problem was resolved temporarily, now failed again for 5th time in as many months. Neither me installer no myself can get any response to emails and WhatsApp messages. Really does seem like the give a ….

Great piece of kit adding a battery and uninteruptable power supply to my solar panels. Looks good and works well. The app showing the status of the system is clear - status of the battery, how much solar you are generating and how much power your are drawing from or sending to the grid.

Great product. Excellent support to installers.

Muhammad called as I had sent an email asking about my Powervault. It has run perfectly until recently but following Muhammad asking some questions he worked out what went wrong and fixed it on the call then coached me. Turned out an electrician had done his job of installing a smart meter badly but it all got fixed and I am once again a happy customer!