Understand clearly and save energy!

The EN‍‍ERGIE­SPARKOMMISSAR is THE energy consulting portal on the web.

The EN‍‍ERGIE­SPARKOMMISSAR offers easy-to-understand and consistently independent information from the best-known energy consultant in the German-speaking region.

KEYNOTE

The ENERGIESPARKOMMISSAR is available not only on video but also live in person.

I love captivating the attention of an entire hall, surprising people, making them laugh, blowing them away and, almost unnoticed, conveying energy-saving information at the same time.

KEYNOTES WITH THE KOMMISSAR

Tour Dates

Meet the Kommissar – live on stage

19.05.2026
Dieburg
Wärmepumpe im Altbau
Bücherinsel (Römerhalle) - Dieburg
Details
27.05.2026
Darmstadt
Wärmepumpe im Altbau
entega (Orangerie Darmstadt)
08.06.2026
Kaiserslautern
Wärmepumpe im Altbau
Stadt Kaiserslautern

All tour dates at a glance.

Voices from the Web

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“One of the most valuable YouTube channels.”
“Really excellent! This is exactly the kind of guidance the world needs!”
“Simply incredible what high-quality content is being delivered here.”
“This is by far the most exciting and educational channel I have subscribed to so far.”
“Chapeau ... This is definitely in a league of its own in the German-speaking world!”
“I’ve been looking for a while, but I’ve never found such clear and easy-to-understand information and tips. Simply brilliant.”
“I’m impressed by the quality of the content…”
“Your channel is a real asset. Well-founded, competent, and short and to the point.”
“The best thing I’ve seen and heard in this field so far!”
“Basically Hollywood!”
“Very, very cool, Carsten! I’d vote for a slot on ARTE.”
“This is what the internet was invented for. Excellent.”
“This channel should be mandatory for everyone with an old building. I hope you get millions of subscribers!”
“Your videos are truly top class. Even ‘my’ energy consultant has learned something from them. ;-)”
“Could you please clone yourself? You’re the only one who has been a great help to me and hopefully will continue to be. THANK YOU!!!”
“This morning I came across one of your posts by chance. I’ve now watched my fourth video. I was actually planning to do something completely different today.”
“You couldn’t explain this topic any better for non-experts.”
“Thank you so much for the excellent videos, the subtle humour, and for sharing your knowledge.”
“For over a year now, I’ve been soaking up everything related to energy-efficient renovation. You never cease to amaze me and teach me something new. For the umpteenth time: THANK YOU!!!”
“The ‘Dude’ of energy saving!”
“True professionals are those who could explain their knowledge even to a five-year-old. You’re the first person who was able to explain the whole dew point thing to me.”
“I wish I’d had you as my building physics teacher at trade school!”
“Holy moly, I’ve never learned so much from any YouTube video before!!! You’re amazing. Thank you.”
“I wish I’d had a teacher like you back then. Very well explained.”
“As a fellow energy consultant, I’m always impressed by how clearly you explain complex topics.”
“And the Oscar goes to ... Thank you very much for this competent and detailed advice.”
“By far the best, best-researched, objective, and informative video I’ve found anywhere on the whole wide web so far!”
“Top class!!! More than 30 years after school, thanks to your video, I finally understood electricity and really got a grasp of it.”
“I’m genuinely blown away. Such convincing, logically structured talks and, above all, truly understandable presentations are something I’ve very rarely come across in my 66 years.”
“Why didn’t I have you as my teacher!”
“Respect! Very competent and explained in a simple way. It’s always good to get advice from someone who isn’t selling anything ;-)”
“I’m currently gathering information to start further training as a building energy consultant. After this video, I’m even more excited to get started soon.”
“All I can say is one word: GOOD-MAN!”
“Methodically, didactically and, of course, professionally, the Energy Saving Commissioner is playing at the very top of the first league.”
“There are always people who are better than all the others put together. The Kommissario’s other videos are all of impressive quality.”
“Amazing video! I finally understand this now.”
“This is the best video I’ve seen on this topic so far. And I’ve already watched a lot of them.”

New: The Heat Pump Knowledge Portal

Here you’ll find plenty of heat pump knowledge – in German.

Heat Pump Knowledge Portal

Books by the Kommissar

Instead of boring reports, I have now written two books – in German.

Read and save energy…
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Energy Consulting for Everyone!

On his ad-free YouTube channel, the EN‍‍ERGIE­SPARKOMMISSAR shares his expert knowledge in an entertaining way and free of charge.

Learn more about his mission
Newsletter

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Newsletter

Become part of the EN‍‍ERGIE­SPARKOMMISSAR community and never miss insider information again. Sign up for the newsletter.

You can unsubscribe from the newsletter at any time and free of charge. Your data will only be used for sending it and will not be passed on. You can find more information on how your data is handled here.

Latest Videos

Here’s the video library and here’s my YouTube channel.

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WHO IS THIS KOMMISSAR?

Who is behind it?

Why does he make his videos?

Behind the scenes