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Discover the Sigenergy SigenStor 5-in-1 solar energy storage system. Learn how this innovative technology is shaping the future of solar in the UK.
July 14, 20268 min readThe solar industry is evolving fast. In the UK alone, MCS recorded over 267,000 certified solar PV installations in 2025, a record-breaking year while battery storage installations almost doubled. As more households and businesses generate their own renewable electricity through solar panels, the question is no longer whether to go solar, but how to store and manage that energy intelligently.
This is where Sigenergy enters the picture. Every now and again, a product catches the attention of solar energy professionals across the trade. Anything new needs to be genuinely distinctive to stand out against established, globally recognised brands. With one of the most innovative all-in-one solutions on the market, Sigenergy's SigenStor is doing exactly that — enabling users to achieve exceptional energy independence with safety and solar technology at the forefront.
In this article, we explore who Sigenergy are, what makes their solar energy storage system different, and why Triple Solar, one of the UK's leading solar wholesale distributors — is proud to be an exclusive distribution partner.
Founded in 2022 and headquartered in Shanghai, Sigenergy has emerged as a forward-thinking leader in the clean energy sector. The company is dedicated to advancing home and commercial energy solutions, with a focus on energy storage systems, solar inverters and EV chargers. By integrating power electronics, digital technologies and AI, Sigenergy develops next-generation solar products with a strong emphasis on safety.
The company's founder and CEO, Tony Xu, brings over 20 years of experience in the inverter industry. He previously headed one of the largest inverter companies in the world and spent several years leading its AI team. Tony highlighted the transformative potential of SigenStor at launch: "We stand at the cusp of a transformative era. Through our groundbreaking innovation, we have created a product that incorporates EV DC charging and cutting-edge AI technology, all aimed at driving down energy expenses and enabling energy independence."
With a world-class R&D team comprising hundreds of industry experts — over 70% of the company's 500+ employees are engineers — Sigenergy operates globally with seven offices and activities in more than 30 countries. The company has applied for over 200 patents, with battery production capacity of 6 GWh and power production capacity of 12 GW.
Sigenergy is built on five core values: Safe, Intelligent, Green, Efficient and New (S.I.G.E.N). These guide the company's mission to pioneer distributed energy solutions that combine comprehensive safety, simplicity and exceptional performance. Their vision is clear: to enable everyone to enjoy green energy and achieve energy independence.
This commitment to safety is not just branding. Sigenergy prioritises a 5-layer proactive safety protection system in its battery packs, designed to rapidly cut off energy input and block potential dangers. Every product passes through strict quality control protocols at the company's 20,000 square metre manufacturing centre, which is equipped with state-of-the-art automated production lines.
Sigenergy's manufacturing processes leverage several advanced technologies to maintain a competitive edge in the solar energy storage market:
EV-grade laser cleaning for precision component preparation
Latest AMB laser welding for durable, high-performance joins
Inverter vacuum potting to protect electronics against moisture and vibration
Automatic real-time smart manufacturing with consistency-focused processes that help prevent overheating issues
High-accuracy incoming quality control at every stage of production
Their commitment to sustainability extends to their own operations: a 3,000 square metre rooftop PV plant at the manufacturing facility reduces the company's carbon footprint while demonstrating the very solar technology they produce.
At the heart of Sigenergy's innovation is the SigenStor — marketed as the world's first 5-in-1 energy storage system. Unveiled at Solar & Storage Live 2023, SigenStor integrates five core components into a single, modular unit:
Battery PCS (Power Conversion System)
Battery Pack using safe LiFePO4 chemistry
EV DC Charger for fast, green vehicle charging
PV Inverter (solar inverter) converting DC to usable AC
EMS (Energy Management System) powered by AI
This integration sets new standards in the solar industry, offering versatility and scalability with simplicity and safety at its core. The system supports up to six stackable battery modules, providing an energy capacity range from 5 to 48 kWh. Self-guiding pin connectors between modules allow simple stacking without field wiring, significantly reducing installation time and effort.
Sigenergy provides four distinct configurations to suit different solar energy needs:
Solar + Storage + Charging: Produce, store, charge and use green energy flexibly — ideal for households with an EV.
Solar + Storage: Generate, store and use solar energy for your home without EV charging.
Storage Only: Optimise utility bills by leveraging variable electricity prices, even without solar panels.
Backup / Off-grid: Ensure a reliable green energy supply during power outages, with 0 ms switchover to backup mode.
Sigenergy leads the way in AI innovation with the mySigen App, a self-developed application that offers system visibility and interactive, AI-driven smart features. Powered by GPT-4, the app answers questions, troubleshoots issues and facilitates a quick setup process — auto-networking and scanning ensure all components are ready within less than 10 minutes. The system's self-detection and self-evolution capabilities continuously optimize energy usage and savings, making it one of the most intelligent solar energy management platforms available.
Beyond residential solar solutions, Sigenergy provides flexible and modular commercial and industrial energy storage systems. These are designed to be adaptable, fitting various scales and requirements, helping businesses lead more profitable and sustainable operations with reduced energy costs. Browse Sigenergy's commercial solutions available through Triple Solar.
The SigenStor supports both on-grid and off-grid applications and can DC-couple and AC-couple, seamlessly integrating with other inverters while maintaining full functionality. Multiple units can be connected in parallel, allowing businesses to configure their energy solutions based on specific requirements without paying for unnecessary battery capacity beyond their power demand.
The battery energy storage system (BESS) market is experiencing rapid growth, particularly within the residential solar sector. However, concerns about battery safety remain a barrier to wider adoption.
As Dr. Thomas Hillig noted: "Sigenergy, a new dynamic company for ESS, is set to redefine battery safety, spearheading efforts to enhance safety standards and gain consumer confidence."
A critical element of Sigenergy's safety protocol is adherence to the IEC 62619 certification, which involves rigorous testing at the battery cell level. This, combined with the 5-layer proactive safety system and consistency-focused manufacturing, ensures every SigenStor unit meets the highest safety standards before reaching an installer or end user.
For MCS-certified solar installers and electrical contractors across the UK, the SigenStor offers practical advantages that go beyond the headline specifications:
Faster installation times — modular stacking with pin connectors eliminates field wiring. App-guided commissioning completes in under 10 minutes.
Fewer components to source — a single 5-in-1 unit replaces separate inverter, battery, PCS, EMS and EV charger boxes, simplifying procurement and reducing on-site clutter.
Customer satisfaction — the AI-driven mySigen App gives homeowners real-time visibility and smart tariff optimisation, reducing post-install support calls.
Scalability — start a customer with a modest solar-plus-storage setup and return later to add capacity or EV charging, all within the same system.
Combined with premium AIKO ABC solar panels for maximum efficiency or cost-effective Growatt hybrid inverters for projects on a tighter budget, SigenStor gives trade professionals a flexible, high-performance portfolio to offer every type of customer.
