1KOMMA5° Australia Reviews 724

TrustScore 4.5 out of 5

4.6

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Review summary

Created with AI, based on recent reviews

Evaluating 188 reviews, reviewers overwhelmingly had a great experience with this company. Customers consistently praise the excellent service and the helpful, professional staff. Many people highlight the smooth user experience, from the initial consultation to the final installation, noting clear communication and efficient processes. However, some people were dissatisfied with the product and customer service. Specific issues mentioned include batteries not reaching full capacity, increased power bills, and slow or unhelpful responses from customer service, with some experiencing long delays in resolving technical problems.

What people talk about most

Service

Consumers generally find the service to be positive, with many praising the professionalism and efficiency of... See more

Staff

Clients share positive opinions on staff. Many reviewers praise the professionalism, helpfulness, and... See more

Product

Reviewers highlight ambiguous aspects of the product. While some customers praise the product, noting that... See more

Customer service

Reviewers mention ambiguous feedback about customer service. Many customers report positive experiences,... See more

User experience

Users describe positive interactions with the overall user experience. Many customers report a seamless and... See more

Reviews shaping this summary

Rated 5 out of 5 stars

I had sick a great experience with 1Komma5. They provided a home visit to explain the product and tailor a package for us. When I came back with competing quotes, they didn’t go back and forward with... See more

Rated 5 out of 5 stars

From signing up to installation you were kept informed about every step of the process either by text or email. Any questions were answered promptly and accurately. Installation day went without a hit... See more

Rated 5 out of 5 stars

I had our power drop on Xmas day and the National Sales Manager, Grant called me to help out. We have solar and battery and Grant organised their tech, Daniel, to visit onsite. Daniel got the system u... See more

Rated 5 out of 5 stars

Brandon (Senior Renewable Energy Specialist) was awesome to deal with, and got me a great deal. My first bill came in at $3.92 and the system is still being monitored. Cant wait to see how well it... See more


Company details

  1. Solar energy equipment supplier

Written by the company

We believe it's time for New Energy 1KOMMA5° is Australia's Heartbeat of New Energy. Our vision is for Australians to live on sunlight and wind forever for free, by providing access to the cleanest and most affordable electricity possible. Founded in Germany, our name says it all, and translates to 1.5 degrees (1=1, KOMMA = Decimal, 5=5, ° = Degrees). This speaks directly to the Paris Climate Agreement, preventing a further global temperature increase of 1.5°. We believe New Energy is the answer: Tailoring renewable, flexible, economical and care free solutions for Australians..backed by German development, technology and design.


Contact info

4.6

Excellent

TrustScore 4.5 out of 5

724 reviews

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Replied to 14% of negative reviews

Typically replies within 24 hours

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Rated 4 out of 5 stars

Good

Install scheduling was a bit chaotic, pretty understandably as they're very busy. Install went smooth, guys did a good job, everything works.

19 February 2026
Unprompted review
Rated 5 out of 5 stars

Solar Battery installation a breeze

The Solar Battery installation went very well. The crew arrived on time and installed the battery quickly and efficiently. They kept me informed throughout the installation and gave me a comprehensive induction at the end. Communication with 1KOMMA5 has been easy and friendly.
I can only recommend the company.

19 February 2026
Unprompted review
Rated 5 out of 5 stars

Jayden did such a great neat job…

Jayden did such a great neat job installing our solar battery yesterday. He was very professional with his workmanship and knowledgeable with all our questions, explaining everything simply for us. He set up the apps on our phones at the end and took all rubbish away leaving everything tidy. Very happy with the whole exercise.

17 February 2026
Unprompted review
Rated 5 out of 5 stars

Highly recommend!!

Highly recommend!!! We have had a wonderful experience. From the very beginning with the sales agent and all the way through to install date and even after with amazing customer support. Super easy to contact and available to help with any questions. Highly professional company and the installers were super friendly and respectful of our home. Everything was neat and tidy when they left and were able to answer the questions we had. For anyone looking for a solar battery, I highly recommend 1KOMMA5

16 February 2026
Unprompted review
Rated 4 out of 5 stars

So far it’s been a good experience

So far it’s been a good experience. I did get a bit frustrated on some communication aspects when getting my order ready but I gave a bit of grace due to the Christmas period.

17 February 2026
Unprompted review
Rated 5 out of 5 stars

Awesome service

Highly recommend for those wanting to go solar. The team that came to install the panels were great, professional. Support was provided when needed which was nice.

11 February 2026
Unprompted review
Rated 1 out of 5 stars

A $30,000 Nightmare: Avoid 1KOMMA5° at All Costs

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 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.

16 February 2026
Unprompted review
Rated 4 out of 5 stars

The experience was good with 1komma5…

The experience was good with 1komma5 for the most part. The system install went well and it appears to be working as required. Costs were competitive and I'm looking forward to using the Amber interface to buy and sell power at wholesale rates. The only reason I didn't give it a 5-star review is that there was some hassle around the Christmas break in getting the install date pushed back a bit. I think that this is due to it being a fairly small team and a key contact was on leave.

10 February 2026
Unprompted review
Rated 2 out of 5 stars

VPP not happening though battery and invester good

Battery and inverter seem to work well. We were told with great confidence that the VPP would be set up within 2 weeks tops. Its been months and nothing yet, which throws out the ROI modelling. Seems 1Komma5 and VPP provider haven't sorted their arrangements out yet, which is contributing to the delay.

19 February 2026
Unprompted review
Rated 5 out of 5 stars

10/10 from start to finish

From signing up to installation you were kept informed about every step of the process either by text or email. Any questions were answered promptly and accurately. Installation day went without a hitch. Once installed I was shown the shut down process and how to use the online app. The installers were polite and informative. 10/10!

4 February 2026
Unprompted review
Rated 5 out of 5 stars

Tidy and High Quality

Whole experience was great. They handled all the application process, organised with the sparky who was awesome, and got everything installed neatly (not a forest of wires). Very tidy, high quality work.

23 January 2026
Unprompted review
Rated 4 out of 5 stars

A reasonably good experience

A reasonably good experience, given some of the pain I have seen others go through with other companies. Through the presales and quoting process the sales agent explained all of the options to me and helped me understand my options. 1Komma5 were more than happy to create a customized system suitable to my needs. I wanted to retain my current solar panels but replace my inverter and add a new battery, they were quite happy to do this.

The installation process went reasonably well, although it was a long day for the installers and they did need to come back and finish some things later.

At the time of writing I have had the system running for about three months, it has done quite well and saved us some dollars off our power bill. We have not had a power outage yet, but in testing I do see that the battery kicks in as expected and keeps essential items like our fridge and freezer running, which is what we did ask for.

Overall quite happy and would buy from 1Komma5 again.

21 October 2025
Unprompted review
Rated 5 out of 5 stars

Highly recommend.

The initial consultation was quick and incredibly informative. They worked with us to find the most suitable product. Delivery and installation was like-wise very efficient and they reached up consistently to provide help and support.

17 October 2025
Unprompted review
Rated 5 out of 5 stars

A heap of information

From online research, then the agent visiting, thru to installation every agent of the company was knowledgeable, professional, personable and courteous. Questions that couldn't be answered on the spot were answered within 24hrs. I was kept informed throughout the process. Would recommend this company to anyone looking for this product

21 October 2025
Unprompted review

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