Voltmax Energy Solutions in Luxembourg
Sigenergy Energy Storage Systems
More Than Battery Storage: The Sigenergy Ecosystem
SigenStor by Sigenergy is built for people who want more than a battery. It is a modular all-in-one energy system that brings together storage, solar conversion, backup, smart energy management, and even EV charging in one architecture. What makes Sigenergy especially compelling is the way it turns separate energy functions into one connected ecosystem — designed to help households and businesses store solar power, manage it intelligently, and prepare for a more electrified future.
Residential energy storage
SigenStor – the brand’s main home storage system, positioned as a 5-in-one platform combining inverter, battery PCS, battery pack, EMS and optional EV DC charger.
Commercial & industrial energy storage
SigenStack – a modular BESS for commercial applications, built around BAT 12.0 batteries and battery controllers, with greater scalability than a home system.
Storage ecosystem components
Sigen Energy Gateway, Business Gateway, Sigen Hybrid Inverter / Energy Controller / C&I Inverter, mySigen App / AI mode, EV DC Charging Module.
Most people do not buy storage because they want a battery
- They buy it because they want to use more of their own solar power.
- Because they want more protection during outages.
- Because they are tired of sending excess energy away during the day and buying electricity back later.
- Because they want one energy system that actually works together.
That is exactly where Energy Storage makes sense.
What Makes Sigenergy Stand Out in Energy Storage
Sigenergy stands out in energy storage because it does not position storage as just a battery, but as a connected energy ecosystem. Its flagship SigenStor is presented as a 5-in-one system that combines inverter functions, battery storage, EMS, and optional EV DC charging in one platform, while the broader brand also covers commercial storage through SigenStack. What makes that compelling is the mix of integration, AI-driven energy management, backup capability, and strong EV readiness—including official messaging around seamless backup via Gateway products and up to 25 kW bi-directional EV charging in the EV DC module. In other words, Sigenergy feels different because it is built as a smarter, more future-oriented energy architecture rather than a standalone battery offer.
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Explore the Sigenergy Product Ecosystem
Sigenergy is built around more than one battery. Its product range includes residential and commercial energy storage systems, backup devices, inverters, software, and EV charging solutions that work together as one connected ecosystem. Instead of treating storage as a standalone product, Sigenergy presents each device as part of a wider energy architecture designed for smarter control, backup readiness, and long-term flexibility.
SigenStor
SigenStor is Sigenergy’s flagship residential energy storage system. The brand presents it as a 5-in-one solution that combines storage, inverter functions, energy management, and optional EV charging in one modular platform. It is designed for homeowners who want a cleaner, more integrated way to manage solar energy, backup power, and future expansion.
5-in-One
Fully integrated
- Integrating Solar Inverter, EV DC Charger, Battery PCS, Battery Pack, and EMS into one powerful energy system – this is our revolutionary 5-in-One Home ESS.
- Simplified to give you a smart and seamless experience. Versatile in nature, caters to every energy usage scenario. Stylish front eagle eye and side ambient lighting design blend elegantly with any surroundings. SigenStor complements a variety of home styles perfectly.
Sigen Battery
SigenStack
SigenStack is the commercial energy storage solution in the Sigenergy portfolio. Sigenergy describes it as a modular BESS created for commercial applications, with a stronger focus on scalability, flexibility, and larger project requirements. It is the natural fit for businesses that need more than residential-style battery logic and want a system designed for broader site energy strategy.
Modular design & stackable installation
12 kWh per module, flexible deployment, precisely meeting project needs to cut investment and redundancy.
Easier installation, no need for cranes or other special installation equipment. Stack and play with no complex wiring between modules.
Automatic device networking enables ultra-fast commissioning of the entire system.
SigenStack
Sigen Energy Gateway
The Sigen Energy Gateway is the device that supports backup functionality and helps connect storage to real-world resilience. Sigenergy says it works with SigenStor or SigenStack to provide smart energy management and continuous monitoring, while also enabling backup behavior in the right configuration. In simple terms, this is the component that helps turn stored energy into practical power security.
The Ultimate Backup Power Solution
Thanks to Sigenergy patented power control algorithm, we have achieved the most powerful 0ms load-side disruption, ensuring a seamless transition to PV+ESS power supply for all loads whenever the grid power fails, thereby you never notice a power outage.
- 0 ms Load Side Disruption
- 24/7 Outage Protection
- Hybrid Power Sources
Backup management
Schedule on/off times
Select power sources
Load-side Sankey diagram
Track the exact power source of each smart load at a glance—see instantly whether it’s powered by solar PV, grid, battery, or other sources.
Safe & Smart
Bypass switch supported
- Industry leading 100 ms reverse power flow protection.
- System protection by data driven risk prevention mechanism.
- Easily monitor and control energy flow via mySigen App.
< 25dB quiet operation
Sigen Energy Gateway ultra-low noise footprint complements modern living spaces, proving that sustainability doesn’t have to sacrifice serenity. With Sigen Energy Gateway, energy flows smarter, quieter, and greener—because a sustainable future should sound like silence.
Business Gateway
The Business Gateway is the commercial counterpart, designed for larger installations and integrated with the Sigen Hybrid Inverter and SigenStack. Sigenergy positions it as part of a business-ready architecture focused on intelligent energy management, seamless backup power, and 24/7 monitoring. It is especially relevant for sites where continuity and control matter as much as storage capacity.
Never feel the power failure
- 0 ms Load Side Disruption
- 24/7 Outage Protection
- Hybrid Power Sources
Comprehensive Backup Power for Critical Operations
Sigenergy’s new C&I Energy Gateway delivers ultra-high current capacity of up to 3647A, providing reliable backup power for large-scale C&I facilities. In the event of a grid outage, the system ensures stable and uninterrupted power supply to critical loads, safeguarding continuous production, operational safety, and business continuity.
- 2400kW Backup power
- 3647A Backup port circuit
- 3647A Grid port circuit
More backup power
Sigen Energy Gateway supports the connection with diesel generators, offering more abundant backup energy for your home or business. It also supports 2-wire start, and you can intelligently control the generator through mySigen App remotely to meet your power needs.
- Real-time monitor
- Remote control
- 2-wire start
Sigen C&I Inverter
The Sigen C&I Inverter is built for commercial and industrial projects. Sigenergy highlights it as a powerful hybrid inverter with a reserved battery port and built-in PCS, designed to work with SigenStack in larger business installations. This makes it an important part of the brand’s commercial ecosystem rather than just a standard solar inverter.
Higher Power, More MPPTs
- Support DC Coupling: Versatile, yet Future Proof
- Smallest & Lightest: Effortless Handling
- EMS Inside: Cost-effective & Worry-free
- Fully Networked Communication: Rapid Deployment & Networking
- 500m AFCI Detection Distance: Push Further for Safety
- Phase Sequence Self-Adaptation – No More Complex Wiring
- Integrated Backup Load Port: Multiple units in parallel without gateway
- Seamless Switchover: Energy without interruptions
- 150% Peak Output Power: Handling Impact Load for Smooth Startup
Sigen C&I Inverter
- PV – 50.0 / 60.0 / 80.0 / 100.0 / 110.0 / 125.0 kW
• Fully networked communication, enabling rapid commissioning
• Built-in EMS, supports 100 units in parallel without data logger
• Industry-leading 500m AFCI, top-tier safety across applications
• IP66 protection rating, ensuring worry-free outdoor deployment - Hybrid (On-grid) – 50.0 / 60.0 / 80.0 / 100.0 / 110.0 / 125.0 kW
• Battery ready, easy upgrades to a PV + BESS at any time
• Smaller and lighter, easier installation and transportation
• Built-in EMS, supports 100 units in parallel without data logger
• Industry-leading 500m AFCI, top-tier safety across applications
• Fully networked communication, enabling rapid commissioning
• IP66 protection rating, ensuring worry-free outdoor deployment - Hybrid (Micro-grid) – 50.0 / 60.0 / 80.0 / 100.0 / 110.0 / 125.0 kW
• Seamless switchover, ensuring 0ms load-side disruption operation
• 150% overload for 10s, handling impact loads for smooth device startup
• Minimal size & weight in the same power range, ensures simple installation
• Multi-unit connection via Energy Gateway, flexible expansion from kW to MW
• DC coupling micro-grid solution, simplifies configuration & boosts efficiency
mySigen App
mySigen is the software layer of the ecosystem. Sigenergy presents it as the place where users can track energy flows, monitor performance, and gain full visibility over generation, storage, and consumption. This app is important because it reinforces one of the brand’s strongest messages: Sigenergy is not only about hardware, but about intelligent energy control.
Let AI Think. Run Smarter.
Intelligent Energy Scheduling By Sigen AI Mode
Sigen AI Mode turns data into smart decisions to proactively optimize how your system runs by analyzing your energy habits, PV output forecasts, and dynamic tariffs or time-of-use pricing. Whether storing solar for later or selling at peak value, it buys low, sells high, and uses power smarter so you save more and waste less, effortlessly.
See What Happened. Know What’s Next.
AI Insights into System Operation Strategy By Sigen AI Insight
Sigen AI Insight gives you a clear window into your energy strategy—past and future. See exactly how your system performed over the last 24 hours, and understand why it charged, discharged, or bought power from the grid at specific times. Even better, get a forecast of the next 24 hours, with AI-driven explanations for each action your system plans to take. It’s energy transparency, powered by intelligence—so you’re always informed, in control, and ahead of the curve.
AI That Solves. Not Just Responds.
GPT-4o-integrated Intelligent diagnostics By Sigen AI Assistant
Whether you need a post-sales engineer, a home energy analyst, or a system manager, Sigen AI Assistant is always on hand to help. With advanced multimodal response, it can answer questions, help with system settings, and solve complex energy challenges in real time.
When users face complex questions like “Why is the battery charging?” or “Why didn’t it charge?”, Sigen AI Assistant goes beyond surface-level replies. It engages in deep reasoning, analyzes real-time data and system behavior, and walks users through its thought process step by step.
EV DC Charging Module
The Sigen EV DC Charging Module is one of Sigenergy’s most distinctive devices. Instead of treating EV charging as a separate accessory, Sigenergy integrates it directly into the wider energy ecosystem, positioning it as part of the connection between solar, storage, and electric mobility. This gives the whole system a much more future-oriented character.
Bi-directional charging
The future is here.
Our cutting-edge technology enables direct access to DC power from batteries and solar panels, facilitating virtual grid capacity expansion and 100% green power charging. Now, Vehicle-to-Home (V2H) and Vehicle-to-Grid (V2G) capabilities are officially available worldwide, unlocking endless possibilities for modern living.
EV-Home Energy Bridge
Vehicle-to-home (V2H): Utilize EVs for Enhanced Home Backup Power, Coupled with Sigen Battery for even more than 100kWh Storage Capacity.
The world’s first V2G
works with most country grid
Imagine tens of millions of EVs worldwide as a coordinated storage network, integrated into global power dispatch. They’d boost grid resilience via peak shaving, unlock full battery lifecycle value, and drive owner profits while fueling the carbon neutrality push.
Vehicle-to-grid (V2G): Allows the EV battery to share energy with the grid for peak shaving and load balancing.
What makes SigEnergy different?
SigEnergy is not just a battery — it’s a complete, intelligent energy system built for modern homes.
- All-in-One Design
Solar inverter, battery, energy management and optional EV charger in one system — simpler, cleaner, more efficient. - Future-Ready Energy
Supports EV integration and advanced energy use from day one. - Scalable & Flexible
Start small and expand anytime as your energy needs grow. - Smart Energy Optimization
AI-driven system automatically manages when to store, use or export energy. - Full Home Backup
Powers your entire home — even in 3-phase systems. - Safe & Long-Lasting
Reliable LFP battery technology for maximum safety and lifespan.
One system. Total control. Maximum energy independence.
Your EV Can Become Part of Your Home Energy System
Most people think an electric car only consumes energy. With SigEnergy, it can become an active part of your home’s energy ecosystem.
Thanks to advanced EV integration, your system can charge your car intelligently using solar energy and, with compatible technology, even use the car as an additional energy source for your home.
In simple terms: your solar panels, battery, home and EV can work together as one smart system – not as separate devices.
What this means for homeowners:
- smarter EV charging
- better use of solar energy
- more backup potential
- greater energy independence
- one system instead of multiple disconnected devices
SigEnergy doesn’t just store energy. It connects your entire energy lifestyle.
Our energy storage projects
Energy Storage Solutions
Why is it worth it now?
- Savings – the storage facility shifts consumption to its own, cheaper energy and “shifts” it to peak hours.
- Safety – in the event of a power outage, selected circuits (or even the entire house) operate automatically from the battery.
- More PV all year round – less feed-in to the grid, more real benefits for your home.
- EV, heat pump, and dynamic tariff readiness – flexible charging/discharging, DC fast charge option in the SigEnergy system.
Connected. Powerful. Future-ready.
A Smarter Way to Store and Use Energy
Integrated by Design
Sigenergy builds storage as part of a connected energy architecture rather than a standalone battery offer. That system-first approach is one of the brand’s clearest differentiators.
Residential and Commercial Coverage
The brand covers both home and business storage through SigenStor and SigenStack, giving it broader credibility than a single-product battery brand.
AI-Led Energy Management
mySigen and AI mode position Sigenergy as a software-aware brand, not just a hardware manufacturer.
Backup-Ready Architecture
With Gateway products, Sigenergy presents backup as a meaningful part of the system experience.
EV-Native Thinking
The optional EV DC Charging Module gives the brand a stronger EV-to-home identity than many traditional storage competitors.
Safety and LFP Chemistry
Official materials for Sigen Battery and SigenStack emphasize LFP/LiFePO4 chemistry and long cycle life.
Discover the Best Sigenergy Solution for Your Home or Business
Choosing the right Sigenergy system is about more than battery size. The ideal setup depends on your property, your solar installation, your energy habits, and whether backup power or EV integration is part of your plan. Contact our team to discuss the right Sigenergy solution for your home or business and get guidance tailored to your project.
Need the technical details?
Download the official SigEnergy datasheet for specifications, electrical data, and installation parameters.
Energy Storage FAQ – Common Questions & Answers
The flagship residential storage system is SigenStor, which Sigenergy describes as a 5-in-one platform integrating inverter functions, battery storage, EMS, and optional EV charging.
SigenStor is Sigenergy’s all-in-one energy storage platform. Instead of presenting storage as just a battery, Sigenergy positions it as a connected system that can combine inverter functions, battery storage, energy management, backup, and optional EV charging within one architecture. That makes it broader than a typical battery-only solution.
Sigenergy uses the term 5-in-one to describe SigenStor’s integrated design. According to the company’s product materials, the system combines a solar inverter, battery PCS, battery pack, EMS, and EV DC charging module in one modular platform. The goal is to reduce fragmentation and make the energy system easier to scale and manage.
Yes. Sigenergy’s main commercial storage platform is SigenStack, presented as a modular BESS solution for commercial applications and larger C&I projects.
Yes. Sigenergy offers an EV DC Charging Module with up to 25 kW bi-directional charging as part of its wider system.
In Luxembourg, a SigEnergy home battery may currently qualify for Klimabonus financial support when it is connected to a photovoltaic system operating in self-consumption mode. Under the current 2026 scheme, the subsidy for the battery is calculated by formula and reaches a maximum of €2,250 for a storage capacity of 9 kWh or more. The battery must have at least 2 kWh of storage capacity, and if it is added to an existing photovoltaic installation, the application must generally be made through the post-financing procedure, not the new pre-financing route. It is also important to note that an additional battery for the same photovoltaic installation is only eligible again after 5 years from the invoice date of the previous storage system.
Yes – under the current Klimabonus scheme in Luxembourg, a home battery connected to a self-consumption photovoltaic system may qualify for financial support. The battery subsidy can reach up to €2,250, depending on usable storage capacity, with the maximum reached from 9 kWh. Eligibility depends on the project setup, and batteries added later to an existing PV system must usually follow the standard post-financing procedure.
Yes, with the proper architecture. Sigenergy’s Gateway products are positioned to enable backup functionality and intelligent energy management.
Official materials for Sigen Battery and SigenStack BAT 12.0 describe LFP / LiFePO4 battery chemistry.
Yes. The company explicitly highlights mySigen App and AI-based optimization as part of its core offer.
No. Officially, Sigenergy positions itself as a broader provider of home and business energy solutions including ESS, inverters, and EV charging.