Smart energy Storage
sonnen Battery:
a reliable investment in your future
Cover up to 80% of your energy needs with your own solar power
sonnen offers reliable storage solutions for your solar system. It allows you to use your solar energy exactly when your household needs it. Your sonnen storage system lets you cover your electricity needs with energy from your own roof, while also supporting the local grid, making it the smartest and most cost-effective solution.
Day or night, sonnen keeps you connected and in control.
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Morning
As the sun rises, your solar system begins producing electricity. However, the early sunlight usually isn’t enough to fully meet your energy needs. That’s where your battery steps in — powering your home with stored energy from the day before.
Midday
During the day, your solar system produces the most energy. When production exceeds your consumption, your battery stores the excess electricity, making it available later when it’s needed.
Evening
As energy demand rises and your solar system produces little to no power, the battery takes over — delivering stored solar energy for sustainable electricity use even after sunset.
Battery Technology
sonnenBatterie 12
A flexible hybrid battery system engineered for modern homes, with scalable capacity, integrated backup and AC/DC compatibility.
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Battery Technology
sonnenBatterie Evo
The sonnenBatterie Evo is a fully integrated AC coupled solar battery storage system designed for outdoor and indoor installations.
What makes sonnen unique
Lithium iron phosphate (LFP) battery cells
From the very beginning, we've chosen lithium iron phosphate (LFP) technology for our batteries, because it's safer, longer-lasting, more sustainable, and better for the environment than other battery chemistries. LFP battery systems deliver high efficiency and an exceptionally long lifespan, all without relying on problematic raw materials like cobalt.
In-house battery research
In sonnen’s battery lab, our experts test the latest storage technologies to shape a sustainable energy future. Rigorous testing procedures ensure the highest levels of safety, efficiency, and durability. Extreme stress tests simulate decades of use, while our energy storage systems are continually refined for the smart energy grids of tomorrow.
Data servers in Germany
All data is stored on servers located in Germany and protected under the highest security standards.
Daily monitoring of the installed systems allows for the early detection of potential anomalies, while automated battery maintenance ensures consistently reliable product quality.
The night belongs to sonnen
It’s that simple: during the day, you benefit from the sun — at night, from your intelligent sonnen Battery. Our all-in-one system uses smart energy management to deliver long-term savings and efficiency, day after day and year after year.
Intelligent consumption
It's that simple: during the day you take advantage of the sun, and at night, the energy from your smart solar battery.
Our comprehensive system guarantees you, year after year, the maximum possible savings thanks to truly intelligent energy management.
Intelligent control
With the sonnen App, you can track energy flows in your home in real time. Monitor your production and consumption, set your backup power reserve.
Smart network connection
With increased photovoltaic self-consumption, you can use your solar energy more efficiently, save money, and protect the environment. It's the most cost-effective way to meet your needs with clean energy.
Your benefits with sonnen
- Increase self-consumption – Gain more independence from the grid
- Lower energy costs – The most affordable electricity comes from your own roof
- Boost energy security – Stay protected during power outages
- Invest long-term – 10-year warranty and 10,000 charge cycles
- Reduce CO₂ emissions – Use more of your solar energy, emit less
Don't just take our word for it!
You have questions? Find your answers here.
