Don't waste your energy: store it for use when you need it.

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Quokka® H is a system that enables your building to become energy self-sufficient. The electricity produced by your solar panels is fully utilized: daily surpluses are stored in batteries (without lithium or lead). Larger summer surpluses are stored as hydrogen, to be used in winter.

👉 No energy wasted, everything is valued

Aerial view of a house equipped with solar panels and H2Gremm energy solution

Your all-in-one Quokka® Home

How it works in 3 steps

Immediate use

The electricity generated by your solar panels is used directly according to demand.

Daily storage: the electrochemical battery

Surpluses are first stored in an electrochemical battery. Once this primary battery is full, daily autonomy is ensured.

Seasonal storage: the hydrogen battery

In winter, surpluses are almost nonexistent; in summer, solar production far exceeds demand. Seasonal storage is therefore necessary: hydrogen, which can be stored long-term without loss, ensures this autonomy.

Quokka hydrogen station developed by H2Gremm for energy storage and management

Hydrogen Battery

It consists of 3 main stages:

Producing hydrogen: water is converted into hydrogen through electrolysis. An electrochemical compressor then compresses it to reduce its volume and facilitate storage.
Storing energy: hydrogen is kept in steel cylinders at 300 bar.
Releasing electricity: when energy is needed, a fuel cell converts the hydrogen back into electricity

1 annual maintenance

From 200 to 2500 kWh

Seasonal storage

From 15 to 40 kWh

Daily storage

< 1 m² floor space

Compact footprint, easy integration

20 years+

Lifetime

0 nuisance

Silent, zero direct emissions, zero lithium

Solutions for all needs

Individuals

Use 100% of your solar production, without wasting any.
Store the energy produced during the day for use at night or in winter.
Enhance your home with clean, sustainable technology.

Professionals

Keep your operations running smoothly, even in the event of a network outage.
Reduce your energy costs in the long term.
Store solar surpluses to power your premises in winter.
Improve your company's carbon footprint.

Communities

Make your schools, gyms, and municipal/community buildings self-sufficient.
Secure your local energy supply.
Integrate a solution made in France that is easy to deploy.
Contribute to your region's carbon neutrality goals.

Connected ecosystem

Monitor your station's data in real time: battery charge level, production and self-consumption history, autonomy level, system status, preventive maintenance.

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