1Komma5° Australia

I have been working with this joke of a company for the last 3months to have a battery replaced under warranty from Tesla and to also have additional batteries installed. I have been working with Cameron and other people including my case manager from this company they have completely wasted my time on getting batteries replaced and installed. You… Read more

can’t believe the rubbish that they tell you on the phone. Even when you accept their quote it counts for zero It’s just like they are a load of crap. Crap service crap people crap care factor And last of all crap Google review to match the crap that they dish out to you To say that’s I’m is only half of it just stay away from this pack of bloody crap You have been warned do not use this company

We had a solar and battery system installed just over a month ago, and it has been nothing but problems since day one. The system has been unreliable, and now it has escalated to the point where my house has no power at all. What is completely unacceptable is the lack of support. I currently have an open support ticket that has gone 8 days… Read more

without a single response. During that time, I have sent multiple follow-ups and updates, including reporting that the system is not functioning and my home is without power. Still nothing.

No acknowledgement. No troubleshooting. No urgency.

This is not a minor inconvenience. This is a complete failure of a critical home system, and the company responsible has effectively gone silent.

When you are selling and installing systems that people rely on for basic power, disappearing when something goes wrong is unacceptable.

No problems with install (Dec24) at first, then a few months in a complete black out - mains-battery link burnt out, went one night no power - fixed next day. So far so good. Show details

My wife & I have spent over $33,000 on 1Komma5 services. Just batteries, because we have 4 seperate solar units / inverters to service or panels. The installation went well, but after regulatory sign off a few weeks later, our main board has encountered issues, which despite numerous & repeated contact they fail to remedy. The independent… Read more

assessor identified the damage & alerted both myself & 1 Komma5. (Still waiting for a fix) (mid Jan install) Our handover was rushed, late on a Friday evening on a hot day, the installer wanted to leave and assured me that once the independent assessor gave his ok & the batteries were switched on, then a full handover would occur. Naturally, disappointingly, it still has not. We are also still not re-connected for excess supply to go the grid, and our power supply company have emailed, asking our contractor, (1Komma5) to contact them to sort out the issue. (Waiting) 1Komma5 are great at getting you a quote. Their installation staff, (sub contractors), were polite, friendly & punctual. The afterservice care is non existent, because the money has been banked & they're onto their next project. Whilst we were assured that our customer service, back up, review, ongoing relationship would be fantastic, I'd describe it a terrible. We'll keep waiting. Sending in emails to a central server who log our issue, but never action it. If you're looking for a battery company or a renewable energy service / installer company, my advice, is don't waste your time, effort or money with 1Komma5. This foreign owned company with their local staff certainly don't care for us, why would they care for you!

I had a couple of proposals with quotes and 1Komma5 stood out as clear and professionally presented by their well informed sales rep in a home visit. Miles better than another company. Everything proceeded as outlined and the company followed up to confirm everything was all ok before sending the final bill. They replaced my inverter, added… Read more

batteries and sunshields that look smart on the side of my house. The team installing did an outstanding job. They taught me some stuff about it, the power board breakers which were rearranged, reset my hot water service timer to a more suitable time and got me started with the apps. I suppose I'll know more about product reliability and longevity in time and though the guarantees are in place for what I think is a good amount of time I won't know until I get there. Signed on to Amber for power supply and the app gives me pretty easy to understand info. There is a second app that also tells me things like battery temperature, how full it is and power consumption. About 4 days in now and the app is telling me I'm about 98% self-sufficient. Weather has been patchy. Some people seem confused about the app but it seems pretty straightforward. I can't see myself looking to sell from my battery according to price spikes but I'll see when the app alerts me that it's a good time to sell. I'll know more when the billing cycle kicks in and I'm not expecting it to do miracles but it does reassure me that what I'm using from the grid is pennies and if the grid blacks out I'll keep going for at least a while.

I was happy with Solaray for the installation of my solar panels about 4 years ago and Tesla Powerwall 2 about 2 years ago. Solaray was taken over by 1Komma5° . I have since discovered that a CCEW certificate was not issued when the Tesla Powerwall 2 was installed. I raised this issue with 1Komma5° in April 2025. 1Komma5° support seemed helpful.… Read more

After a few months, a technician came out to inspect the site at 1Komma5° could not access the original CCEW. I was told some work needed to be done to bring it up to the current compliance standard, but all this will be done at no cost to me. That was a few months ago. There has been a deafening silence from 1Komma5°. Several emails have gone unanswered.

I guess 1Komma5° is good with installation, but very bad with after-sales support. There is no phone number to call. You have to raise a support ticket electronically and hope for the best.

UPDATE Since writing this review, 1Komma5° reached out to me with some concern. The Head of Customer Service apologised for my experience and bent over backwards to resolve this issue. I am happy to say that everything has been resolved.

Everyone I spoke to spoke clear English, and provided clear and detailed answers to my question. Installation was quick.and professional and system performance is as expected Show details

1Komma5 electrician / Installer arrived as scheduled. Introduced himself , showed me identification to confirm his trade. The batteries + inverter were installed after a full days work, including an awning as the battery instal was on the north side of the house. They also had to upgrade the Main Switch as the original was bakerlight (out dated… Read more

and not to Aust Stds). He removed all waste materials and ran me thru the installation and how to use the app. We had a short conversation and a laugh with him & my Wife and he left.

Had some issues downloading and configuring the App. Melissa from the Help Desk was not only very helpful with her guidance, but also very patient with any hiccups I had as she guided me through the process. Genuine nice lady. Five star service...☺️ Show details

Dear Folks, If you are looking for a solar installer please stay away from 1KOMMA5°. Do not trust their marketing this company is great at sales but the complete opposite when it comes to installation. If you want to avoid a headache DO NOT use this company. Their inspector actually issued a safety certificate even though the cabling was… Read more

installed incorrectly forcing them to re-cable the entire system three months later.

Their advice was absolutely useless. They prioritised saving their own costs over my needs. For instance, they told me to keep my old system to "produce more electricity", but THEY JUST WANTED TO SAVE THEMSELVES THE COST OF REMOVAL & DISPOSAL. The old system was obviously too old and was not even compatible with the new one. This is only one of many pieces of useless advice they gave me, be very careful people, don't spend your hard earning money and get headaches. My project COST OVER $30000 and I’ve had nothing but trouble since the installation. I hope nobody else has to go through the nightmare I experienced. I sent them an official complain and never get a reply. Stay away if you want peace of mind.

I had a system and battery installed in 2025. The installer didn't know how to connect the system to my phone without house internet and I had to do it myself. Recently had a power outage and wouldn't you know it, I had no backup. Sun was shining and battery was full, but I had no power. They are nearly impossible to get hold of when you have a… Read more

problem. If they don't like your problem, they won't get back to you at all. I suggest going with someone smaller and more local to you because they will care more about the service you get.

UPDATE: I sent an email to the guy that is below here. He said he was happy to help me if I would take down this review. I said I wouldn't take it down until my install was fixed. They made 2 appointments, cancelled both of them and so now I've gone to Fair Trading.

You'll maybe get a working unit but if you have any problem with it at all, you will NOT get any service without going through all of this.

Update: On 27 March someone came out and the installer had not connected the CT clamp and there was no CT clamp. I do not know if the CT clamp has been put on but my system now backs up. It took 2 months of me chasing them and the threat of Fair Trading.

As a side note: I wasn't sent any emails that required a response. None. Thank you.

worst company I met, took the deposit, and never did the installation on time, delayed 1 month, and asked for delay another month, so I asked for a refund, 1komma5 refused, now I need to sue in Fair Trading Office. Show details

Found 1Komma5 to be professional from start to finish. A consultant visited my home and discussed our needs and options and tailored a system to suit. The installation team were friendly and efficient. Could not fault the service. Show details

I bought a battery off these clowns and its been 6 months and when there is a black out I have to sit in the dark ..my biggest regret is getting this company to do my work as there very backward when it comes to fixing stuff and bad communication. My recommendation is to never buy out of town because from my past experience these companies are so much more reliable when things go wrong . Show details

All my contacts with 1Komma5 were friendly, knowledgeable, helpful and tactful during the planning stage. The installation was done on time, efficiently and without fuss, and the crew were polite and offered explanations at each stage. I’m delighted with the results and enjoy checking the App every now and then to see how well things are going.

Very happy with the whole process and the installation team especially. The guys were very easy to work with and did a very neat installation . Couldn't be happier. Show details

A Truly Outstanding Experience with 1KOMMA5 – Highly Recommended From the very beginning, my experience with 1KOMMA5 has been nothing short of exceptional. I want to especially acknowledge Mr. Joshua Parsons, whose professionalism, deep knowledge, and genuine care made all the difference in helping me and my family make an informed decision about… Read more

installing a large-scale home battery system.

Joshua took the time to thoroughly educate us on the benefits of energy storage, how it could significantly reduce our electricity bills, and how it aligns with our goal of creating a more sustainable and energy-efficient home. His guidance was clear, honest, and empowering, we felt confident every step of the way.

The technical and installation teams were equally impressive. The installation was completed to the highest standards of quality and safety, and I want to give a special shout-out to Bryce and his teammate, who carried out the work with remarkable professionalism, precision, and care. The system was installed neatly and efficiently, and their attention to detail was truly commendable.

It has been a fantastic journey working with 1KOMMA5, and I wholeheartedly recommend this company to anyone considering a solar system or battery installation. Their commitment to excellence, customer education, and sustainable energy solutions is second to none.

I had my solar panels installed by this company a couple of years ago. The installation process was okay — not bad overall. However, their after-sales support is very disappointing. I recently needed help with monitoring my panels and tried contacting their support team. After going through the phone options, I was connected to customer service,… Read more

who told me they couldn’t help with technical issues and that someone from the technical team would get in touch. A few hours later, I received an email saying that for standard requests, the average response time is five business days.

What’s frustrating is that if you call about a new installation or sales enquiry, you can speak to someone immediately — but existing customers are left waiting days for support. It’s quite clear where their priorities are.

Haven’t had my system installed yet, have just accepted the quote. Karl Thomson dealt with my process thus for, his patience, knowledge and advice was second to none.