Hydrodomus

Refuel your hydrogen vehicle at home, safely.
Making 700 bar green H2 from tap water and electricity.
Freedom from the station. 💧⚡🚙

[Yannick DURINDEL @YDurindel]

It's time to build again

[Yannick DURINDEL @YDurindel]

The logo of @hydrodomus is composed of the 2 electrodes of an electrolyzer. And a flow of water passing in between, reducing it's volume while going from one to the other, as electrons cut H2O molecules, and produce H2 and 1/2 O2.
And the whole thing is shapes as a H for Hydrogen

[Hydrodomus @hydrodomus]

@hthieblot Home green hydrogen

[Hydrodomus @hydrodomus]

That's what we do in 6 words 🚗💦

[Hydrodomus @hydrodomus]

Generating hydrogen for cars at home.

[Yannick DURINDEL @YDurindel]

Let's fix this

[Yannick DURINDEL @YDurindel]

Quick overview of the different colours of Hydrogen

[Yannick DURINDEL @YDurindel]

I'm going to VivaTech to represent @hydrodomus
Let's meet !

[Hydrodomus @hydrodomus]

@YDurindel 15th of June 2026 will go down in history as the day Hydrodomus strated

[Yannick DURINDEL @YDurindel]

Green is the future
This is how we end the fossil fuel era

[Hydrodomus @hydrodomus]

The key to lowering the price of hydrogen is to produce it on sight.

Now it requires a higher investment to purchase the tech, but it will get more affordable with time ✨

[Yannick DURINDEL @YDurindel]

Reverse engineering the PEM to find the problem I had.

Of course I put it back the wrong way.

At the time of the video, I had a co-founder that did his PhD in electrolysers (absolute goat). And he saw directly why I mounted it wrong at the end of the video, can you tell why ?

[Yannick DURINDEL @YDurindel]

The hydrogen car industry is dying. I do understand my haters.
But I understand why the tower is falling down, and with @hydrodomus, I'm only putting a brick where it leans to fix the issue.
Allowing the industry to keep building 🚀🚀🚀

[Hydrodomus @hydrodomus]

Très fier de faire parti de ce réseau d'excellence 🇫🇷🇫🇷🇫🇷

[Yannick DURINDEL @YDurindel]

🗣 Bonne nouvelle !

Hydrodomus viens de rejoindre le superbe réseau de La French Tech Grand Paris @FTGrandParis , l’accélérateur Bizdev qui connecte les acteurs innovants de l’écosystème pour mieux les faire grandir.

Merci aux équipes de la French Tech Grand Paris pour leur accueil et leur confiance.🙏Vous aussi, rejoignez la communauté juste ici :
https://t.co/Y87fWux4V0

[Hydrodomus @hydrodomus]

And lift-off !

[Yannick DURINDEL @YDurindel]

Electrolyze Separate Filter

In our prototype, we are not only focusing on generating #hydrogen and pressurizing it, ensuring its purity is just as critical. Therefore, we use a membrane to separate it from oxygen. After that, the gas is dried and filtered.

[Hydrodomus @hydrodomus]

@YDurindel No hydrogen was involved in this specific test. Standard hardware engineering practice: we are isolating variables by testing our staged compression mechanics independently before integrating them with the PEM electrolysis stack. Safety and rigor first.

[Yannick DURINDEL @YDurindel]

A scrappy prototype, and a promise of a cleaner future 🌍

[Hydrodomus @hydrodomus]

Everything is set for a functionnal prototype !

[Yannick DURINDEL @YDurindel]

A bottle of osmosed water
A plastic tube
A PEM electrolyser
Two exit ports : O2 and H2
A DIY expandable reservoir for hydrogen
A gas dryer
A gas filter made from silica gel
A membrane pump
A high pressure bottle
A piston pump
A high pressure bottle
A refueling port

[Hydrodomus @hydrodomus]

Demo of the 2-stage compression !

[Yannick DURINDEL @YDurindel]

10x timelapse validating our multi-stage compression logic.

A diaphragm pump handles the initial low-pressure induction, followed by our high-pressure piston pump taking over to step up the pressure into the second-stage buffer. Smooth, automated hand-offs between these stages.

[Hydrodomus @hydrodomus]

Many car companies are making hydrogen vehicles.
However they make no sense in the current state of the industry.
Hydrogen for cars is very scarce, not green and expensive.
We are here to help 🚀💧

[Hydrodomus @hydrodomus]

We are building Hydrogen refueling stations for homes !