Sonnstrom GmbH

We purchased a balcony power plant in both March and December 2021. We picked up the March plant in person and had the November plant shipped to us.
The plant we bought in March was to be built on another roof this year. For this we ordered a few more mounting parts. Mr. Krause checked our order and then called back by phone to make sure that the right parts were delivered to the old system. We found this very helpful and courteous.
Everything worked out fine. The shipment of the plant was then quickly and smoothly.

Self installed on my garage roof tile roof. Was simple and well described. The integration into the w-lan network and install the app, so that you can track what the system performs was for me (64) a little more difficult. Unfortunately, my roof slope is only 23 degrees, so that I in February / March and April only a maximum power of just over 500 watts. I think that will be even better when the sun is higher. A good buy, I would do it again. Have recommended this to some friends. Was then unfortunately not available at this time.

Quick uncomplicated installation, correspondingly good performance, highly recommended.

Had informed me for a long time, with other providers either the inverter did not exhaust the full 600W or the collectors were not so efficient, or it was called for older collectors a higher price. The set from Sonnstrom is optimally optimized. When ordering, I was still skeptical because according to the manufacturer Heckert, the collectors were officially sold out for the year. The information and date selection for the delivery is super professionally designed and the delivery came as agreed quickly and on time. Now it is really fun to look at the energy meter, because
the system helps us as a family to reduce the next electricity bill.
I am already thinking about what we can expand solar.

I am very satisfied with the advice of Rumina Will. I would like to have another

balcony power plant, but in Saxony it is not so easy with the Netzanbieder.

Works perfectly. I am completely satisfied.
Thank you very much!

It was a very good decision!!!

Especially in today's time with the rising cost of electricity even more sensible to generate electricity with the sunlight - I am so far very satisfied with my balcony power plant

Goods were packed very well protected. The power yield is as promised.

Good telephone advice Mr. Krause is very competent

Have my balcony power plant on 15.12.21 registered and put into operation. Modules Heckert Nemo 3.0 120 M and Huayu HY 600 Plus bring 13:00 without sun in the drizzle to the west under 20 °however 115W, has surprised me very much. Am very satisfied with Sonnstrom (and Mr. Krause). Is always reachable by phone (mobile) and WhatsApp. He answers very quickly. I find very important when you are on the roof to gange. The inverter I have not registered in China, but a Fritzbox Dect210 switched into the socket to power recording - goes great.
I would order 2 more systems when the government finally realizes that our power generation is not enough and the balcony power plants may triple their power of 600W.
Thank you Mr. Krause, everything worked great!

Top system, with a little skill to assemble even without professionals. Tricky is only the W-Lan setup, but has also worked after a few attempts. Currently in operation for a few months. Performance in the sun top, in cloudy weather naja.... But the best thing is, if there is a problem, Mr. Krause from SonnStrom can help quickly and easily. Résumé grade 1+!

Top system, with a little skill to assemble even without professionals. Tricky is only the W-Lan setup, but has also worked after a few attempts. Currently in operation for a few months. Performance in the sun top, in cloudy weather naja.... But the best thing is, if there is a problem, Mr. Krause from SonnStrom can help quickly and easily. Résumé grade 1+!

Everything SUPER! After short-term possible professional advice on site with appropriate tips, I was able to order the balcony power plant without time pressure and then pick it up myself - thereby saving the transport costs of 75 €. Yesterday in just under 3 hrs. in O/W direction mounted, the balcony power plant delivers despite overcast skies or light rain 200 watts; just the sun has briefly looked out: over 450 watts. I am thrilled. I am happy to recommend Sonnstrom with Mr. Krause!

I was very well advised in advance, the delivery was smooth, the assembly and connection was very simple by the enclosed instructions.
When connecting the logger I first had some problems, (Access point not visible) which were quickly solved even in the evening by telephone support.

I bought a mini solar system for the roof a while ago (because it doesn't require a permit and doesn't involve a lot of red tape), but only recently got around to installing it. Everything is fine, including the mounting kit for the plain tile roof. The electrical connection was very easy, you can not mix up anything. The only thing I would not recommend to a do-it-yourselfer is to install a Wieland socket - but it is also possible to use an existing, normal socket. By the way, SonnStrom's telephone advice was very competent. The biggest problems I actually had with getting the integrated data logger online ... but that was my mistake ;-). I will buy a second system for the second circuit in the house.

Plant makes a qualitatively good impression. Delivery date was unfortunately pushed back (due to Corona). Unfortunately, the screw to attach the inverter was missing, I had to get a bolt myself. After 2 weeks still no statement bez. yields possible.
Mike

I picked up the plant myself, which was feasible without any problems. All components were present and of the best quality. It is very advantageous to receive a complete plant with all the individual parts without having to assemble and procure them individually.
The installation of the tile roof beams is a bit of a challenge at first because of the 0.5 - 1 cm gap to the roof panel below. Also, to pre-drill for the huge screws still had to get a special long wood drill and for relining appropriate wood. From the second hook, this then already goes briskly, also the necessary Abflexen of the tile plates. The presence of a drill, cordless screwdriver and flex are, of course, a prerequisite. Who does not install on the roof, has of course here less problems and work, but perhaps also less yield.
Since in the beginning the data logger passed on its values via W-Lan, but always (correctly) reported only 0 watts yield, a troubleshooting resulted. Here the friendly and competent exchange with Mr. Krause was very helpful. Finally, a defective contact of the properly plugged together cables of the converter and the connection at the socket was found. After this was rewired, the PV system started up without complaint and has been doing its job ever since.
All in all, a very successful and good investment, for which I can fully recommend the company SonnStrom.

All around positive experience. Super advice and reliable feedback on inquiries. I picked up the (plug-in PV) system directly myself - also went completely smoothly.