Sustainable Swiss Battery Storage
Second-Life Technology from Modual – Developed and Produced in Switzerland
Swiss Made
✅ 10-year warranty
✅ 60% less CO₂
✅ Modularly expandable
Why we rely on modual
The intelligent storage solution for every home and business. Whether you're planning a new solar system or retrofitting an existing one – modual adapts perfectly to your needs.
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Reduce costs
Use your solar power when you need it – even at night. Increase your self-consumption, lower your electricity bill, and free yourself from price fluctuations.
Shield
Swiss Quality & Safety
Developed and manufactured in Switzerland, the batteries meet the highest safety standards. Rely on longevity, reliability, and a 10-year warranty.
Recycling symbol
Sustainability with Second Life
High-quality battery cells get a second life. This conserves resources, reduces your CO₂ footprint by ~60%, and contributes to a circular economy.
The second life for electric car batteries
Instead of scrapping EV batteries, we give them a second life as stationary home storage.
Why Second Life?
At 70-80%% remaining capacity, a battery no longer meets the requirements for electromobility – range and performance are no longer sufficient. However, these cells are perfectly suited for stationary home storage: energy density and high short-term power are not relevant here.
Each battery cell undergoes rigorous testing and is equipped with the specially developed system for second-life batteries. Modular Battery Management System (BMS) monitored to ensure that safety and performance are always guaranteed.
Did you know? To meet the EU's demand solely through new batteries, 250 TWh of energy would be needed annually for production by 2050. With second-life storage, we utilize energy that has already been invested. (Source: Fraunhofer / Uni Münster)
~60%
Less CO₂
The battery cells account for approximately 80%of a storage system's CO₂ emissions. Reuse reduces the ecological footprint by around 60% .
95 kg
Raw materials per kWh
Approximately 95 kg of raw materials must be extracted for 1 kWh of new battery cells. Behind every storage unit are several tons – which we will reuse.
10%
Recycling capacity
Europe could recycle only about 10% of the EV batteries coming back in 2024 that will be retired in 2030. Second-life bridges this gap meaningfully.
Full control over the technology stack
From the circuit board to cloud AI: modular develops hardware and software in-house
Own BMS
The self-developed battery management system is specifically tailored for second-life requirements. Deep access to every cell level for maximum safety and optimized lifespan.
Predictive Maintenance
AI-powered anomaly detection identifies deviations in battery behavior before they become problems. Maintenance is proactive – often completely remote.
Flexible Hardware
Second-life batteries vary depending on their origin. Thanks to flexible hardware interfaces, modual integrates a wide range of source products – supplier-independent and scalable.
Easy installation
AC-coupled CEE16 connectors enable fast, error-free installation. Thanks to pre-configuration, commissioning is completed in the shortest possible time.
Our Product Lines
The right solution for every project – from 11.5 kWh to the MWh range
BESTSELLER
Modular Series Basic
The ideal solution for single-family homes and small businesses
Available variants:
- DC Direct connection to PV inverter
- AC-Set – Complete set with inverter
- AC Retrofitting for existing PV systems
- Capacity 11.5 – 46 kWh
- Performance: up to 15.4 kW
- Battery type: LiFePO4 (LFP)
- Warranty: 10 years / 5,000 cycles
- Weight: 115 – 415 kg (depending on capacity)
- Operating temperature: 5°C to 40°C
COMMERCE & INDUSTRY
Modual Series Pro
AC-All-In-One for Commerce, Industry, and Large Projects
Areas of application
- Peakshaving – Cap peak loads
- Self-consumption Optimize large-scale PV systems
- Emergency power Secure critical infrastructure
- Capacity 35 – 210 kWh (scalable to MWh)
- Performance: 15 kW
- Battery type: LiFePO4 (LFP)
- Warranty: 10 years / 5,000 cycles
- Weight: 350 – 400 kg (per unit)
- Operating temperature: 5°C to 40°C
Universally compatible
Works seamlessly with your existing infrastructure
All inverters
AC-coupled – compatible with all common inverters and smart home systems. Perfect for new builds and retrofits.
Expandable at any time
Start small and grow with your needs. Expand capacity from 11.5 kWh into the MWh range with plug-and-play.
Solar manager integration
Monitor energy flows via app, control consumers intelligently, and maximize your self-consumption – fully automatically.
Emergency power supply
Optional with a suitable inverter. Never be left in the dark – your battery storage automatically takes over in case of a power outage.
Where do the battery cells come from?
High-quality sources from Switzerland and Europe
Kyburz
It all began with Kyburz vehicles. The decommissioned batteries from the well-known Swiss electric vehicles form the origin of their second-life technology.
Traffic & Commercial Vehicles
Bus and truck manufacturers, as well as public transport operators, are supplying batteries that find a new application after their first life in the vehicle.
Recycling & Workshops
Partners like Librec, workshops, and vehicle recyclers ensure that valuable battery cells are not lost but are tested and reused.
Frequently Asked Questions about Technology
Everything you need to know about our battery storage
Are used electric car batteries really safe?
Yes. Each battery cell undergoes a multi-stage inspection and testing process before being integrated into a modular system. The proprietary Battery Management System (BMS) continuously monitors the status, temperature, and performance of each individual cell. All storage systems exclusively use LiFePO4 (LFP) cells – the safest lithium-ion chemistry on the market.
When did the memory pay for itself?
The payback period depends on your electricity consumption, your PV system, and the selected financing model. Typically, a battery storage system pays for itself in 8–12 years. With our BaaS or EaaS models, you benefit from day one – with no initial investment.
Do I have electricity when the public grid fails?
Optional, yes. With a backup power inverter, your modual storage will automatically switch on in case of a power outage and continue to supply your home. The backup power function can be added during configuration.
Can I expand the storage later?
Yes. Thanks to the modular design, you can add additional modules at any time – from 11.5 kWh up to the MWh range. The expansion is plug-and-play, without altering your existing system.
Does the storage work with my existing solar power system?
Yes. The AC-coupled modular storage units are universally compatible and work with all common inverters and smart home systems. Ideal for retrofits – nothing needs to be changed on your existing system.
How long does the memory last?
modual provides a 10-year warranty or 5,000 cycles. The actual service life is typically significantly longer. Thanks to predictive maintenance and remote servicing, your system is proactively monitored and optimized.
Where is Modual produced?
Development, production, and support take place entirely in Switzerland (modual AG, Brunnen SZ). The data is hosted in Germany. This guarantees the highest standards of quality, reliability, and data security.
Ready for sustainable energy?
Configure your modular battery storage now – sustainable, modular, and Swiss Made. Get your personal offer in just a few minutes.
Or call us: 0800 VOLTERRA – free and non-binding
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