Review your last buy on ProductReview.com.au
1Komma5° Australia

1Komma5° Australia

 Verified1komma5.com
1Komma5° Australia
4.4

419 reviews

Positive vs Negative
85%15%
  • Thumbnail
  • Thumbnail
  • Thumbnail
  • Thumbnail
  • Thumbnail
  • Thumbnail
  • Thumbnail
  • See allThumbnail
Average Purchase Price$21,475.60
Warranty Claim MadeYes · No
Customer Service
4.4
Timeliness
4.5
Job Satisfaction ?
4.6
Rates and Fees
4.5
Installation ?
4.7
Value for Money
4.4
419 reviews
1 AKK  · Not able to get in touch with. No reply to emails and not answering the phone calls
5 carol  · The installation went smoothly and the crew were professional and friendly updated on process regularly no issues whatsoever happy to recommend them
5 Ant s.  · Thanks to Enphase team, specially to Jayasankar Reddy. resolved issue in no time.
5 Sam  · Kept me up to date with progress and installation was hassle free. Everything went well and the system is working great.
5 Richard  · The installation team were excellent and did a really great job
5 Rita  · The planned installation process went smoothly; we were very happy with the company who installed the battery
Quote request cover image
Get quotes
Get quotes from Solar Panel Installers servicing your area

Receive up to 3 quotes with ProductReview.com.au

Get quotes
Renee
ReneeQLD
  Verified

Never use this company. Problems with battery and system being non-complaint. Customer service is extremely poor, unprofessional and rude. After install, the company promises support (part of the contract), but this does not occur. Our compliant has been managed poorly by management. Sale consultants are pushy and promise no power bills to get you to buy the bigger system. Show details

1Komma5°
1Komma5°    

Hi Renee,
We’re truly sorry to hear this has been your… Read more

Ask the reviewer
Marion T .
Marion T .4 posts
 

Once Again, Mehlissa’s Patience and Kind Encouragement, Sorted out My New NBN Wi Fi,Install Onto My Apps,Seeing The Blue, And Green Light on The Inverter. Happy Days. Couldn’t Be Happier With The Service. Regards Marion Tomlinson. Show details

Ask the reviewer
  • Thumbnail
Tim O'Farrell
Tim O'FarrellQLD
  Verified

Exceptional service, transparency, and a team that genuinely fixes problems. Highly recommend 1KOMMA5°! The Challenge: Finding the Right Fit Before the 2026 Rebate Drop I started my solar journey with a 6.5kW Fronius system already on my roof. I wanted to add a battery to maximize self-sufficiency and secure the best possible rebate before the… Read more

start of 2026. Admittedly, I didn't fully understand inverter types or battery sizing at first. I also had a basic interest in Amber Electric and wanted a system that would complement my existing setup. After gathering six different quotes, I quickly realized that navigating this industry is difficult. Only two companies made the cut based on price, equipment quality, and installation timelines. Why I Chose 1KOMMA5° I ultimately chose 1KOMMA5° for three main reasons: 1. Premium Hardware: I wanted high-quality, German-engineered equipment. 2. Fair Pricing: The quote was competitive and right in the expected range for premium gear. 3. Speed: They guaranteed they could get the system locked in before the 2026 rebate deadline. I settled on a new 6kW panel system with a 5kW inverter and a large 40kWh battery, which was supposed to AC-couple alongside my old Fronius system. [1] Phase 1: Seamless Install & The 5kW Charging Bottleneck Once the deposit was paid, the administration was effortless. 1KOMMA5° handled all the compliance paperwork and rebates seamlessly. The communication was proactive, and the initial installation team was on time, courteous, neat, and highly efficient. Both systems fired up and worked together, but I quickly noticed a technical bottleneck. Even though I had two 5kW inverters feeding the property, the battery could only physically charge at a maximum rate of 5kW per hour. With 12.5kW of panels total and a large 40kWh battery, it was going to take far too long to fully charge. I was gutted. The Turning Point: How 1KOMMA5° Stepped Up This is where 1KOMMA5° proved they are a cut above the rest. Instead of leaving me stranded, my sales rep, Joel Price, listened to my concerns. We decided the best path forward was to decommission the old inverter and upgrade the new setup to a single 10kW inverter, allowing all panels on the roof to run through it. Joel worked out a very competitive deal for the upgrade that I was incredibly pleased with. There was a waiting period for the new part, which was completely acceptable because Sarah from the after-care team kept me thoroughly informed and up-to-date the entire time. She was fantastic. When the day came, the upgrade installation crew was just like the first team: friendly, polite, clean, and fast.

Reviews with attachments

  • Thumbnail
  • Thumbnail
  • Thumbnail
Icabod Crane
Icabod CraneNSW3 posts
  Verified

Amazing experience... the Solar Consultant was excellent... broke the ice, made a quick friend, then really listened to us. Asked great questions and really listened to what we wanted to achieve which was $0 Bill to pay, protect us from the rising cost of electricity, be free to use our power the way we want with no stress, and deal with a… Read more

company that will be around for many years to take care off us! He really analyzed our bills properly across the year and then designed the proper battery to add on to our current 6.6kw solar system! By the end he'd covered everything we wanted and it felt natural and not pushy. So we signed up on the spot using the $0 Deposit repayment plan. It really is just a trade-off we stopped paying AGL and used that same money to simply pay off the Solar Battery. The pre-install team was great keeping us updated along the way we were installed 6 weeks later. Installers were prompt and professional and after good discussion we decided to put the battery on the outside wall instead of inside the garage. I love how they included a Cover the inverter and battery at no charge! We did need to use a brick to keep the battery level because our house is on slant. But that doesn't bother me. Got setup with Heartbeat AI which also set me up with Amber Electricity and now its been about a month and I'm already have no electricity cost and earning about $1-$3/day on top of no bills to pay! At this pace I'll be at $500/yr earnings!

Quote request cover image
Get quotes
Get quotes from Solar Panel Installers servicing your area

Receive up to 3 quotes with ProductReview.com.au

Get quotes
  • Thumbnail
John D
John D2 posts
 

It was a straight forward process with timeline point along the way that were clearly understood Show details

  • Thumbnail
Angelo
AngeloVIC3 posts
  Fair Incentive Verified

Updated: I believe in their product hence the reason I had selected them to be my solar and battery provider. There has been challenges along the way but they were able to redeem their shortcomings. Much appreciate to Graeme we had a great chat! He has put back my confidence with the company, 1Komma5. Thank you for the service! Show details

  • Thumbnail
  • Thumbnail
Michelle F.
Michelle F.Queensland3 posts
 

The initial sales rep was helpful and shared a lot of information. We ended up getting it installed a few weeks earlier than planned. The guys that installed the battery were just amazing. Informative and polite and shared along the way what they were doing and very respectful of our house, kids sand puppies. Also left no mess behind at all. It has been a week and so far all is going well. Show details

  • Thumbnail
a failure
a failureQueensland28 posts
  Verified

I added more batteries from1Kimma 5 (arkana) and like all ways a perfect job have doubled my batteries to 38.4kw Show details ·  2

  • Thumbnail
Chris ilskey
Chris ilskeyQLD2 posts
 

Very well organised Great customer service Fantastic product and people Show details ·  1

  • Thumbnail
  • Thumbnail
Mark S.
Mark S.
 

Excellent service. 25kw battery is awesome. Installation was smooth and no fuss. All the staff have been professional and knowledgeable. 100% recomendation. Show details ·  1

Latest follow-ups

Steph
Steph
 

At the beginning, 1KOMMA5° Australia sounded fantastic. The sales team was welcoming, responsive, reassuring, and made plenty of promises about timelines, communication, and how smooth the process would be. Unfortunately, once they had our deposit,… Read more

everything changed.

We went through the entire process in good faith, only to be strung along for months with repeated promises of installation dates that never eventuated. Every enquiry turned into another excuse, another transfer to a different department, or another staff member who was supposedly “unavailable.” Nobody ever took responsibility, and despite countless assurances that someone would call us back, nobody ever did.

The level of communication and customer service has been absolutely appalling. We wasted hours chasing answers, repeating ourselves to different people, and getting nowhere. It felt like once the money was paid, we no longer mattered.

We eventually cancelled our contract out of sheer frustration and repeatedly requested the return of our deposit. Even that has turned into another drawn-out battle, with ignored emails, no follow-up, and no refund received.

This has been one of the most frustrating and unprofessional experiences we’ve dealt with. Plenty of polished sales talk upfront, but once you’re signed up, the service completely falls apart. We absolutely would not recommend dealing with this company.

 Follow-up  · We finally received our refund after some very noisy complaints and contacting every department!

1Komma5°
1Komma5°    

Hi Steph,
We’re truly sorry to hear this has been your… Read more

  • Thumbnail
Cougar
CougarQLD13 posts
  Verified

We love our new system. Admin were great and very responsive, installers were also great and professional. Communication from project manager was quite lacking but everything went without a hitch. They are happy to answer any questions even after install and payment so we are not fobbed off now that it's paid for Show details

 Follow-up  · Ikomm5 have followed up to ensure system is working perfectly. They send us a message everyday telling us when its the best time to use power. Still very happy with the entire system. It is a very neat system and was placed outside along brick wall. When asked if they have ever caught fire, was told no but 1 actually smoked once then shut itself… Read more

Find out how 1Komma5° Australia compares to other Solar Panel Installers

Know better, choose better.

Compare all
Tom R.
Tom R.
 

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 [Name Removed] and other people including my case… Read more

manager from this company they have completely wasted my time on getting batteries replaced and installed. You 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

 Follow-up  · No, this wasn’t a warranty issue There was nothing installed. I didn’t get to that stage. I got a quote then I just got the runaround. Yeah, three months to try to get a battery installed that was under warranty from Tesla. I also received a quote to install an additional two batteries which didn’t get installed either If you get the runaround… Read more

Positive reviews

Vicki
VickiVIC3 posts
 

Just had a great experience with Sarah, great to speak to a real person not once but twice (continuity is a real issue normally with customer service these days, and it's such a relief not to have to speak to a bot first up!). Sarah was responsive, helpful, friendly, non-technical but made me comfortable and like I wasn't an id*ot because I don't… Read more

understand all the tech language! The coordination between different departments was also great - I got emails back promptly from the tech department at 1Komma 5 and they dealt with my concerns transparently and I felt like I was being heard.

Rafael L.
Rafael L.SA2 posts
 

The initial installation was not very good. Air-con was coming up with errors in the panel that would only allow us to use the air con for a few minutes.. Then we called our builder whom then liased with 1Komma. 1Komma then sent in a technician named Ashley T. She thoroughly checked everything, taking her time and checking every possible problem… Read more

about the unit. She then went on to check the vent system above the ceiling and found the problem was there as well. We were happy that we had her as our technician and the problem was fixed.

Simon R.
Simon R.
 

Excellent product and great customer service all the way through the sales process, installation and after sales service for my 1Komma5 solar and battery system. Show details ·  1

Negative reviews

Fair go
Fair go11 posts
 
Customer Service
Timeliness
Rates and Fees
Value for Money

I thought that I had done a fairly good job on my due diligence with 1KOMMA5 when I signed up based on reviews and what I was told by the sales guy. The journey was very different and as the sales guy quoted an install date that was never achievable and was evidently subsequently sacked. I am only being honest and have waited for a family members… Read more

Sunboost install of an exact same FOXESS system so I could be fair. I have delved into this “German Technology” quote and all I can find is that the only German technology is the APP that they use for the VPP. The Batteries and Inverter are all rebranded Chinese technology and manufacture, there is nothing “German” about any of it other than some initial design. 1KOMMA5 have very poor communications and after reading some of the newer reviews here I fully agree with the delays and difficulties. While the installers were nice guys 1KOMMA5 forgot to advise them that I had increased the size of the battery and I had a 100km round trip to pick this additional battery up for them so they could complete the project that day. I also looked after the family members job with Sunboost and am very impressed with the whole journey, from communications all the way through, to the install team. It was perfect and it was exactly the same product, FOXESS, that 1KOMMA5 rebadged and sold to me at a higher price. My learnings are that the FOXESS equipment is great and the performance is impressive. My recommendations are to shop around and when you get your quotes, break down the equipment and get comparitive quotes. At the end of the day 1KOMMA5 is a marketing company selling rebranded equipment at a premium price. One last thing - don’t go near Arise as they have failed to deliver on another project I was looking after for a friend.

Kazza
KazzaQLD25 posts
  Verified

The install guys were absolutely brilliant, they get 5 stars. 1komma5 gets 3 stars, I feel as though I may have made a huge error in engaging 1KOMMA5 for our solar upgrade. We accepted the quote and the deposit paid ($2500)on 14th Dec 2025. The install date was moved twice, original install 10th March actual install, 28th April. So we have now… Read more

been sent a bill for $2500 over and above our original accepted quote. It's been an interesting ride to say the least.

I was offered a FREE upgrade after the first debacle (10th March, wheel fell off the installers trailer whilst travelling on the highway). After an initial call to try and have our install done on a Saturday, nobody bothered to contact me to let me know that you couldn't find anyone to do an install on a Saturday. Fast forward approx. 30 days, I sat on the phone ON HOLD for over 1 hour to the customer service number, in the end I hung up and called your bookings team, only waited 5-10 minutes on hold there, only to be told that we had to wait until late April for our install. That is when the 1komma5 representative said that they were approved to offer a panel upgrade for free. The representative was under the impression that the panels were damage when the wheel fell off the trailer. I informed her that the installer had said to me that nothing was damaged.

21st April install was cancelled because somebody on the install team had to fly back to NZ for a family issue. Then finally after another reschedule 28th April, panels are installed after a scanning issue. So, either they put the larger panels on or we had no solar system and our older system was already removed by this stage. The installer said that usually when the panels won't scan, they have been discontinued/superseded. 1komma5 would have known prior to the install that the panels would be an issue or are the people in their warehouse incompetent.

For each install date, that was missed by them, I had rearranged my working schedule to be at home on those dates. I don't appreciate losing my annual leave days like this.

Yes I have emailed them in regard to the bill that has been sent to us.

I have not setup their Heartbeat Ai, it has some really mixed reviews on it's functionality and actual battery/system management capabilities. It allegedly also does not reflect the system status accurately. I also prefer to be in control of our solar.

UPDATE: I have been contacted multiple times from 1KOMMA5 to pay a bill that doesn't exist. I have sent the proof of payment 3 times now to 2 different people. They even sent it to a debt collection agency, despite being sent proof of payment.

The system is working perfectly (so far) their app works seamlessly and monitors the system nicely.

Aron
AronQLD4 posts
  Verified
Customer Service
Timeliness
Job Satisfaction
Rates and Fees
Installation
Trustworthiness
Value for Money

We experienced significant issues after our solar and battery installation, including outages and system faults. While problems can happen with any install, the most disappointing part of the experience was the poor post-install support. Communication was slow, follow-ups were inconsistent, and there were long periods where we received little to… Read more

no response despite ongoing issues and the seriousness of being left without power. That level of after-sales support was far below what should be expected for a critical home power system.

To their credit, the team has now worked with me over the past few weeks and the technical issues have been resolved.

My overall experience was mixed: the final outcome was positive, but the post-install service and responsiveness need major improvement.

1Komma5°
1Komma5°    

Hi Aron,
We’re truly sorry to hear this has been your… Read more (+2 replies)

Recent reviews

Jamie
JamieVIC
 

Amazing, Blake Hurrell was excellent in the way he handled my questions, got me results I needed really quickly and solved all my questions. Thank you for your help. 1Komma5 system is amazing installation we amazing system running very well would recommend Show details

Robert M.
Robert M.
 

Installation of battery completed very professionally The company and the staff were very helpful from the Salesman to the Project Manager who kept me in touch with timelines on procurement of equipment, organizing electrical requirements and proposed installment The installation team were very courteous and respectful I would recommend this… Read more

Company to anyone who are looking for solar panel and Solar Batteries As I now have both Solar Panels and a Solar Battery✅ I have had no issues with the Company as any problems have been resolved in a professional and courteous msnner✅

Find out how 1Komma5° Australia compares to other Solar Panel Installers

Know better, choose better.

Compare all
Patricia
Patricia3 posts
 

I found the 1KOMMA5* team courteous and very professional. They kept me up-to-date on the progress of my battery installation. When they said it would happen, it did. The Installer was very experienced and professional in performing the job of installing the battery. I would recommend the 1KOMMA5* Company to anyone considering a battery for their solar. Pat Wide Bay Queensland Show details

David F
David FVIC
 

We've had 1Komma5 install solar panels and battery and they've done a great job. Very professional sales and installation teams and good communication from 1Komma5 at all stages of the sign-up, government rebate, installation and post-installation steps. The system works very well. We highly recommend 1Komma5. Show details

Arty
ArtyVIC
 

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

Greg C.
Greg C.VIC
 

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… Read more

encountered issues, which despite numerous & repeated contact they fail to remedy. The independent 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!

 Follow-up  · No response still. 1Komma5⁰ simply don't care about clients, once payment has been made.

1Komma5°
1Komma5°    

Hi Greg,
We’re truly sorry to hear this has been your… Read more

Paul H
Paul HNSW
  Verified

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… Read more

of the house. They also had to upgrade the Main Switch as the original was bakerlight (out dated 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.

 Follow-up  · Following up on my previous rating, still excellent, everything seems to be going smoothly since joining "AMBER" (a VPP) The amount of information is exceptional, thorough & easy to read and watch

Steve Z.
Steve Z.11 posts
  Verified

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.

Lil
LilVIC3 posts
 

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.

Dennis Goodwin
Dennis GoodwinNSW
 

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

ProductReview.com.au has affiliate partnerships. These do not influence our content moderation policies in any way, though ProductReview.com.au may earn commissions for products/services purchased via affiliate links.

Quote request cover image
Find the right Solar Panel Installer

Receive up to 3 quotes with ProductReview.com.au