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At CCL, we’re always looking to bring innovative products to our customers, but we’re careful to make sure our portfolio is curated rather than crowded. One of the most exciting additions to our portfolio this year is the Sigenergy range, which includes the SigenStor and SigenStack integrated solar and storage solutions for residential and C&I installations.
We’ve had the Sigenergy products in stock for a while now, and with demand growing, it’s time to take a closer look at some of the things installers ask us. Here are the most common questions we get asked about SigenStor and SigenStack.
SigenStor is an integrated 5-in-1 PV and battery storage system with modular components. It has been designed for residential and small to mid-commercial applications.
SigenStack is Sigenergy’s latest BESS solution, designed specifically for commercial and industrial applications. It features the same innovative modular approach, making system placement and installation much simpler, but has larger capacity battery modules and is paired with a range of bigger, three-phase hybrid inverters.
Both systems are designed for faster and easier installation, with no complex wiring between modules and automatic device networking for ultra-fast commissioning of the entire system. They can be used in a DC-coupled or AC-coupled scenario.
Caption: Sigenergy’s SigenStor and SigenStack.
SigenStor is a fully integrated stack system. The system includes a solar inverter, optional EV DC charger, battery PCS, battery pack and EMS. At the top is the Energy Controller, which includes the inverter, PCS and EMS. It is available as a single-phase version from 3 to 12kW, with 200% DC oversizing, or as a three-phase version from 5 to 30kW with 160% oversizing. Battery modules come in 5kWh and 8kWh options, with new 6kWh and 9kWh modules now added to the range.
The optional integrated modular EVDC charger delivers up to 25kW, is V2X-ready for bi-directional charging, and includes RFID and OCPP for commercial payment and management integration. It’s a great fit for both homes and businesses preparing for future EV flexibility.
The SigenStack system comprises a series of 12kWh battery modules supported by a hybrid inverter that is available in 50kW, 60kW, 80kW, 100kW, 110kW and 125kW sizes. The EMS of the system is built into the hybrid inverter.
One of Sigenergy’s biggest selling points is scalability. With SigenStor, you can add up to six battery modules per unit. For larger commercial-scale systems, multiple SigenStor units can be connected in parallel up to the megawatt level if necessary. This makes it one of the most flexible all-in-one solutions on the market today.
With SigenStack, you can add up to seven battery modules per stack and up to 21 modules per inverter, providing up to 252kWh of storage per inverter. Linking multiple SigenStack systems makes it possible to design custom solutions at the megawatt scale, with up to 100 inverters connected in parallel in one system.
This incremental scalability allows the installation to be fine-tuned during design to better meet the project’s energy requirements, without the need for the large jumps in energy storage capacity typically seen in other large-scale systems.
Yes. SigenStor batteries use an optimiser at pack level, which allows each battery pack to be independent from the others in terms of capacity, age, SOC and even cell technology. You can start with a single module and expand at any time, up to six in a stack, using different SigenStor batteries to provide storage capacity from 5kWh up to 54kWh.
Each battery module has its own optimiser, heating, monitoring and fire suppression, so you can expand storage in the future.
It’s important to note that SigenStor and SigenStack battery modules are not interchangeable, as they are physically different from each other.
Neither system needs any specialised ground works beyond a level, load-bearing floor. SigenStor can be wall-mounted for systems of up to two batteries. Larger systems with up to six battery modules need to be mounted on the ground.
Sigenergy employs multiple layers of safety features and fire suppression within both systems. The battery chemistry in both systems is LFP, which is considered safer than other lithium-ion chemistries due to its thermal stability. Each battery pack is equipped with its own fire protection system.
The system is designed, and has been recently tested, to prove that it will contain a fire within a single battery pack, helping to prevent thermal runaway or flame spread to adjacent modules or racks.
SigenStack is the first DC-coupled modular storage solution for C&I applications, improving round-trip efficiency by up to 2% when compared with traditional AC-coupled solutions, where more energy is lost due to additional power conversions and extra cabling.
And, since the system is modular, there’s no need for cranes or other special installation equipment often needed in larger capacity systems.
We’re hearing great feedback from installers about the Sigenergy management system that supports both the SigenStor and SigenStack systems. Everything is managed through the mySigen app. It’s just one app for commissioning, monitoring and user settings.
The app includes smart AI tools for monitoring and troubleshooting, remote fault diagnostics and access to the RMA process and documents. Because it’s powered by AI, when using the SigenAI operation mode, it learns and adapts the system’s energy usage to the customer’s consumption habits to get the most out of the system.
For desktop monitoring, installers also have the option of SigenCloud, which has been designed for device lifecycle management and business decision-making.
Caption: Designed for full system visibility for system and home owners, the mySigen app provides real-time energy flow charts, comprehensive energy data graphs and includes a GPT-4.0 powered smart assistant to boost system performance and efficiency.
Not only does SigenStor offer whole-house backup, it also provides a seamless transition between on-grid and off-grid operation, meaning it switches over very close to 0ms. It’s a unique feature for domestic systems.
SigenStor includes a 10-year warranty, which is extendable to 15 years. The C&I hybrid inverters are backed by a 10-year warranty, extendable to 15 years, and the SigenStack battery modules have a 10-year warranty based on 3,500 or 5,000 cycles, subject to the C-rate of the system.
One of the newest additions to our range, Sigenergy systems are fast becoming one of our most popular choices for both homes and businesses. Both systems deliver on flexibility and scalability. Importantly, both offer installer-friendly solutions.
If you have further questions about the Sigenergy product range, our account teams are ready to help.
Email: sales@cclcomponents.com
Phone: 01355 599 900