Top Exergy GmbH

I am completely satisfied with the photovoltaic system from Top Exergy. The consultation was honest, competent, and tailored to my needs, and the installation was professional, clean, and on schedule. I was particularly impressed by the high-quality products and the reliable support even after commissioning. Based on my excellent experience, I'm already considering expanding the battery capacity – that says it all. A clear recommendation!

Unfortunately, Mr. Beisel is unresponsive to my calls, emails, and WhatsApp messages regarding a warranty claim and incomplete technical data provided to the grid operator. As a result, I haven't been able to use my expensive wallbox for six months; it no longer responds to charging cards. Mr. Beisel's remote diagnosis of "the wallbox is working perfectly" hasn't changed anything. The feed-in tariff hasn't been paid since it was commissioned in May 2024 because Mr. Beisel isn't providing the technical data requested by the grid operator. I wanted local, high-quality service from a single sour

Highly recommended – when we decided on a PV system, the search for a provider was initially frustrating. This changed when IBC Solar referred us to Top Exergy. Even during the consultation and planning of the system, it became clear that Mr. Beisel is passionate about the topic of sustainable energy use. The installation was carried out by a well-coordinated team. Everyone, from the people on the roof to the electricians, was friendly and professional, and left the construction site in a clean condition. The handover of the system was very thorough, including detailed documentation. We also r

We completed three projects with TopExergy to future-proof our home's energy efficiency. First, a photovoltaic system with battery storage was installed. Shortly after, we equipped the upstairs rooms with infrared heaters, and finally, four months ago, we replaced our gas condensing boiler with a heat pump and hot water storage tank. Everything went perfectly from start to finish. Mr. and Mrs. Beisel were always available by phone or email, the projects were carried out according to plan, and everything works perfectly. We can wholeheartedly recommend TopExergy. Mr. Beisel is an expert and f

My electrician repeatedly put me off until, in desperation, I turned to Fronius, who then introduced me to top-exergy. top-exergy, and in particular Mr. Beisel, took on my unfinished system and arrived the same day I called him. Mr. Beisel then completed the system to my complete satisfaction, including all the trimmings. Mr. Beisel's recommendation to expand the system by four modules is now proving to be very effective. Even the after-completion support, in my case a failed software update for the battery, was superbly managed by Mr. Beisel. For readers of this review, Mr. Beisel and his tea