1KOMMA5° Sverige Reviews 

Georg was polite and knowledgeable. Took time to explain everything carefully and in detail.

I upgraded my existing solar installation with a home battery and hybrid inverter from 1KOMMA5°, and the experience has been extremely disappointing.
A fault report was registered on 25 May 2026 due to serious electrical issues, including a fault that can cause a complete power outage in the house and an inverter error affecting system operation.
Since then, I have called multiple times and sent several emails. Each time I was told that someone would contact me shortly, but no one ever did. More than a month later, the issues remain unresolved and no electrician has been scheduled.
Problems can happen, but the lack of follow-up, communication, and urgency when dealing with a serious electrical issue is unacceptable.

Fantastic service by 1komma5 and they committed to delivery the installation with in 1 month and they made it happen. I could see the products quality is very high standards and people have come for an installation were very friendly and very professional. Jack was on the sales side especially amazing and he was able keep up the committment and stay through the process gives the confidence to proceed. I strongly recommend 1komma5 is the best choice.

Sent my invoice to collection and added fees even though in my agreement with 1komma5 it was crystal clear that it should be financed. When confronted they said they would pull it back. Its still with the collection service AND financine firm at the same time now. On top of that their support have not picked up a case of a missmanaged installation that led to a firehazard for several days. Whatever you do, try findings a professional installera instead of this amateur hour of a company.

Edit: If you wonder how dysfunctional 1komma5 is, look at the verbatim response from Marianne below. That responsen is written after all this happens and she has a mail from me about it in her inbox already.

I cannot respond to a response so I will follow-up with a new post to try and make everyone keep doing better.

A few days ago I posted a 1 star review in Swedish and my main motive was to get the company to wake up and contact me back after several unanswered emails and give me back the money they promised. That worked, thankfully, although unfortunate it had to come to that. So this response is now 2 stars.

After glazing over the main issues in my post, Marianne's response mainly tried going into detail denying that any issues exist with Heartbeat. As I used AI to translate my review to Swedish, I thought that maybe I posted with grammatical errors and it was my fault, because much like Heartbeat, any AI model can make a mistake.

But I confirmed that it was actually misread by Marianne so I will specify now in my native language and hope it gets more attention. The Heartbeat model DISCHARGES my battery in the middle of the day despite enough solar production and the feed in price at the lowest point. The response from Marianne simply clarified to me why the battery CHARGES in the middle of the day (and most casual customers understand why the battery would charge in the middle of the day). If you say that these posts make you look at my history, look at the 2nd of May, or the 30th of April as the clearest examples but not the only cases. I sold several kWh in the middle of the day for cheap on those days.

Is it possible that the team working on your AI model has been neglecting development of the logic in the old plan that I paid for and focusing on the new one that costs 99 kr per month? Customers like me who signed on before being forced into that subscription seem to be getting ignored here and your team was hoping to get us to buy into the new peak shaving model. Now that the Swedish government has reversed on the policy regarding premiums for high peaks so very few customers like me will be looking to buy into the expensive monthly subscription. So please try and improve the Heartbeat model that I paid good money for at the time before the business shifted to the subscription business plan.

Good contact, short response time, good and realistic informations given. Hope that this will continue.

Update2: 1komma5 have stepped up and the communication has improved significantly. Friday morning an electrician came out and managed to solve my issue. This has really improved my view of them.

Update: 1komma5 has reached out to me after this feedback to push for resolution.

My home solar panel system stopped producing more than a month ago. Reported the stoppage 24h after it happened. First reply took several days. Answer only included a "have you tried turning it on and off again". Second reply came next week with unhelpful comments that they are in discussion with supplier. Still very slow to reply and no information.. 3 weeks ago they replied that they need to send out a technician. No reply after that with regards to setting a time for that. No reply to my emails after that and no contact.

The system I have installed in spite of enormous investment has never worked satisfactory. Customer support is zero and is not a company I would recommend. Numerous phone calls, emails etc go totally unanswered - even the EV charger install ed at their insistence in order to be connected into the control system fails to work . Be warned!

In addition to my previous feedback on Trustpilot, I get a reply from you without a contact details so don't know how should I contact you back?

1. If this type of work was not included (which I wouldn't know unless your team tells me explicitly, which they didn't) then your electrician shouldn't have started that. He shouldn't have started digging if he knew he won't fix it up. If he did started that then he need to complete it. This is just no justification that after damaging my backyard, they suddenly realised that they were not suppose do that, and then fly away mid-way.
2. You cannot bring up the cost in every sentence because anything that was not included, I was told explicitly before they started any work. for.e.g. when they had to cut a few wood pieces to make space for the battery, they told me that it would be extra. Clear communication there. No fuss.
3. before posting the review over here, I have had made a complain about the bad service at info.sverige mail id, but didn't get any response from you. This is also sad that I cannot respond back to the answers from the supplier over here.

If you enjoy slick sales pitches followed by weeks of chaos, 1komma5 is the company for you. We were promised a seamless installation and reliable service. Instead, their electrician managed to connect the cable incorrectly, leaving us without hot water, without heating, and with fuses tripping ever since. I contacted them multiple times — each time greeted with reassurances and promises that someone would ‘fix it as soon as possible.’ Two weeks later, nothing has changed. Customer service could win an award for storytelling, but certainly not for actually solving problems. So yes, we now have shiny solar panels on the roof… and a house that doesn’t work. If you’re looking for renewable energy and an unlivable home, look no further than 1komma5.

Really bad. DO NOT BUY from THIS Company. There is so much better companies out there

Initial installation went very well but subsequent customer service and technical support is zero.
The system is now working in favor of the electricity supply company - energy is bought from the net to charge the battery at a significant cost and then the battery discharges back into the net for a reimbursement of only 6 öre per kWH.
Telephone calls go on answered and numerous emails are ignored.
My experience is that 1Komma5 only interested in obtaining cash for the installation and then, as a customer, you are ignored and forgotten

Very well managed, from installation to usage...
This company is truly professional—the installer, electrician, and seller were all responsible, friendly, and respectful.
Customer service was always available whenever I needed help.
There were no hidden costs, and everything went exactly as the seller promised.
I highly recommend this company because they know what they are doing.

The installation went well in Nov 24 and was happy with everything. That was until I discovered that the inverter was not giving any reading since 16th Jan 25. Contacted 1Komma5 and have been dealing with Kat. Have sent numerous emails and made a number of phone calls. Keep getting told to be patient. This has gone on for nearly a month. Apparently I am not generating any power into the grid as it is all coming into the house so I have been informed, this is costing me money. Is 1Komma5 going to reimburse me - I doubt it? Been told a number of times that 1Komma5 has sent an email to Sungrow regarding the inverter as there seems to be a problem with it and they are still waiting for a reply. Going to call Sungrow tomorrow to check but certain I am being told lies. The after service of 1Komma5 is disgraceful even though I am a fairly new customer. Feel like contacting an ombudsman if this is not sorted in the next week. Can't the company at least organise an installer to come out and inspect the system. Can't see why this is so hard to organise. Also it looks like I am not the only one having issues with 1Komma5.

Terrible installation that took over a month.
Get wrong messaging in app constantly and no answer from customer service referring to email support. Have written 3 times in three weeks and not a single reply. Only call I get during this time if from 1KOMMA5 sales department that want to sell me more :-)
Most be a very poorly managed company

Awful customer service. Impossible to get a hold of. Lead times of several months. Just stay away.

I was once a Big Fan from 1Komma5, but this turned into Frustration since the Support is kind of not existing.
Have Problems with the batteries packs installed by 1komma5. After asking multiple times, they promise to send out an electrical support to check the Problem. Nothing happened for weeks.
Send multiple Feedback Mails, no response.
Spend hours in Waiting loop from Phone Support since no response on E-mails.

Sorry to say that i can no longer recommend choosing 1Komma5. Hope they work out their service issues, otherwise this can be a bumpy ride over the next years. Next time will choose again a local partner an not a global Company that focuses more on Marketing than on their Customers.

Presentation was good and informative although somewhat superficial when trying to dive into the specifics as though the sales people where not quiet sure especially about the battery functions. Ordered solar panels and battery pack around April/May 2023 with installation in October 2023 (as planned). Everything had gone smoothly until then BUT then things started going south. The battery did not work but tipped the fuse switches after 5 min activation. Called 1KOMMA5 service department and initially they sounded keen in trying to work the problem but they quickly turned indifferent. Didn’t respond to sms/email, failed repeatedly to return with feedback, made promises that was never carried out and so forth. In short it took them almost 3 months of contemplating before they finally sent out an electrician that used 10 min. to conclude that one of the battery units was defect. It then took an additional 2 months to acquire new units and replace the old ones. Have had the battery functional for one month now but the system is not running as smoothly as promised with the battery sometimes discharging when the grid price is low and vice versa.

Pros: Smooth installation and solar panels seems to work well.

Cons: Really lousy service department that in efficiency more comes across as a fraternity house full of disengaged teens. No final quality control visit. Minimal instruction supplied concerning how the HeartBeat system works. Battery still dicey.

Final thoughts: The company seems to have some good solar panels but their concept of integrating solar panels and storage has in my case not really worked out yet. Might be some glitches at my place or that 1KOMMA5 promises too much of a system that maybe is not completely optimized. The overshadowing minus with 1KOMMA5 though is their non existing level of service. If you run into problems you are pretty much left on your own and at the grace of the company, if that is, they feel like responding!! Hence only one star!

Top Consulting, regional Support and strong intelligents Products with Heartbeat for the future Controll☀️