Sigenergy C&I Solutions: solar inverters, battery storage and smart energy management

Sigenergy C&I solutions provide an integrated ecosystem for solar power generation, battery energy storage and intelligent energy management in commercial and industrial photovoltaic installations.

The product range includes three-phase string and hybrid inverters, modular SigenStack battery storage systems, digital monitoring platforms, backup power solutions and EV charging technologies.

With a scalable architecture and advanced energy management capabilities, Sigenergy meets the requirements of solar installers, system designers and EPC contractors developing commercial and industrial PV projects focused on self-consumption, energy efficiency and business continuity.

Sigenergy C&I inverters: high efficiency and flexible system design

The range of Sigenergy commercial inverters is built around a common technology platform designed to simplify installation, improve system performance and support scalability.

Key technical features, depending on the model, include:

• 4 to 8 MPPTs, with a maximum input current of 40 A per tracker.
• Support for up to two PV strings per MPPT, providing flexibility in PV array design.
• AFCI protection with arc fault detection at distances of up to 500 metres.
• Maximum conversion efficiency of up to 98.8%, depending on the model and operating conditions.
• Intelligent air cooling and IP66 ingress protection.
• Integrated WLAN and Fast Ethernet communications.
• Integrated Energy Management System (EMS), supporting parallel operation of multiple units.

Sigenergy inverter range for commercial and industrial PV systems

Sigen PV Inverter M1 – 50 to 125 kW

Three-phase string inverters designed for solar PV generation, available in 50, 60, 80, 100, 110 and 125 kW power ratings.

These inverters are suitable for commercial and industrial PV installations requiring high performance, flexible string configurations and efficient energy conversion.

Sigen Hybrid Inverter M1-HYA – 50 to 125 kW

Three-phase hybrid inverters designed for integration with the SigenStack battery energy storage system through DC coupling.

This architecture reduces energy conversion stages and supports efficient management of solar generation and stored energy.

Sigen Hybrid Inverter M1-HYB – 50 to 110 kW

Three-phase hybrid inverters supporting battery storage integration and backup power applications through compatible Sigenergy Gateway configurations.

The M1-HYB series is particularly suitable for C&I installations requiring increased energy resilience and continuity of supply to critical loads.

For further information on Sigenergy’s commercial and industrial portfolio, read VP Solar’s overview of Sigenergy C&I solutions.

SigenStack: modular battery energy storage for C&I applications

SigenStack BAT 12.0 is Sigenergy’s modular battery energy storage solution designed for commercial and industrial applications.

Its stackable architecture simplifies installation, system expansion and maintenance, while providing flexibility for different energy storage requirements.

Key technical features include:

• 06 kWh LiFePO₄ battery modules, with configurations of up to 21 modules and a total nominal capacity exceeding 253 kWh.
• Plug-and-play installation for faster assembly and commissioning.
• Multi-layer fire protection incorporating smoke detection and aerosol-based fire suppression.
• Intelligent air cooling and active battery balancing.
• IP66 ingress protection, suitable for outdoor installations.

The modular architecture enables storage capacity to be tailored to the site’s electricity demand profile, supporting increased solar self-consumption and more effective management of peak demand.

SigenStack can be integrated with compatible Sigenergy hybrid inverters to develop scalable energy storage solutions for commercial premises and industrial facilities.

For further technical information, consult the official SigenStack product page.

Sigen Cloud and mySigen: intelligent energy monitoring and management

Sigenergy’s integrated ecosystem includes the Sigen Cloud and mySigen digital platforms, designed to monitor and manage solar PV and battery energy storage installations.

Key functions include:

• Real-time monitoring of solar generation, battery storage, electricity consumption and energy flows.
• Data updates at intervals of up to 10 seconds.
• Intelligent energy management through Sigen AI, designed to optimise the use of available energy.

By integrating inverters, batteries and digital monitoring tools, the platform enables operators to monitor system performance and manage energy flows more effectively.

For commercial and industrial applications, these capabilities support improved operational visibility, energy efficiency and system management.

Sigen energy controller: three-phase hybrid inverters up to 30 kW

The SigenStor Energy Controller TP range includes three-phase hybrid inverters with rated outputs from 5 to 30 kW.

Designed to integrate solar PV generation, battery storage and intelligent energy management, the range is suitable for residential and smaller commercial three-phase installations.

Key technical features include:

• Integrated EMS for precise energy flow management.
• Maximum DC/AC ratio of 1.6 for flexible PV array sizing.
• Support for unbalanced three-phase output.
• High peak output capability in off-grid operation, subject to model-specific limits.
• Up to 4 MPPTs for optimised solar energy harvesting.

The Sigen Energy Controller range offers an integrated approach to solar generation and battery storage, helping installers develop flexible solutions for smaller commercial applications.

For further information on the residential and small commercial range, read SigenStor and Sigen Hybrid: Sigenergy solutions for residential and small commercial solar PV systems.

SigenStor EV DC: bidirectional EV charging integrated with solar and storage

SigenStor EV DC is Sigenergy’s DC electric vehicle charging solution, designed for integration within the SigenStor energy ecosystem.

The system supports bidirectional charging at up to 25 kW, enabling direct use of DC electricity generated by solar PV systems or stored in compatible batteries.

This DC-coupled architecture reduces conversion stages and supports more efficient integration between solar generation, energy storage and electric mobility.

Key features include:

• Fast DC charging.
• Intelligent charging using surplus solar PV generation.
• Battery-assisted EV charging to supplement available power.
• Support for Vehicle-to-Home (V2H) and Vehicle-to-Grid (V2G) applications, subject to vehicle compatibility, applicable standards and local requirements.
• Modular architecture with simplified installation.
• IP66 ingress protection and an optimised cooling system designed to reduce maintenance requirements.

By combining solar PV, battery storage and EV charging, SigenStor EV DC provides additional opportunities for integrated energy management.

For technical specifications, vehicle compatibility and documentation, visit the official Sigenergy SigenStor EV DC product page.

Sigen C&I energy gateway: backup power and business continuity

The Sigen C&I Energy Gateway extends Sigenergy’s commercial and industrial ecosystem by integrating compatible hybrid inverters, SigenStack battery storage and backup power management.

Designed for larger installations, the system supports multi-unit configurations and scalable architectures ranging from kilowatt-scale applications to megawatt-level systems.

Key features include:

• High-current capacity, with ratings of up to 3,647 A depending on the configuration.
• Backup power management for critical electrical loads.
• Support for parallel operation of multiple units.
• Continuous system monitoring.
• Integration with compatible Sigenergy hybrid inverters and SigenStack battery storage.

In the event of a grid outage, a correctly designed backup configuration can maintain the electricity supply to selected critical loads, subject to available battery capacity, inverter output and system operating conditions.

These capabilities make the Sigen C&I Energy Gateway particularly relevant for industrial facilities and commercial buildings where energy resilience and business continuity are essential.

For system configurations and technical documentation, visit the official Sigen Energy Gateway product page.

Why choose sigenergy solutions for commercial and industrial solar PV systems?

For solar installers, system designers and EPC contractors, the Sigenergy ecosystem offers several advantages when developing integrated C&I energy systems:

• Scalability: modular inverters and battery storage solutions suitable for different installation sizes.
• Energy efficiency: DC-coupled architectures designed to reduce conversion stages and optimise energy flows.
• Safety: integrated electrical protection, fire safety systems and backup capabilities.
• Intelligent management: digital monitoring platforms and AI-assisted energy optimisation.
• Application flexibility: solutions covering solar PV generation, battery storage, backup power and electric mobility.

By integrating these technologies within a coordinated energy management ecosystem, Sigenergy enables the development of flexible solar and storage systems designed to meet the evolving requirements of commercial and industrial energy users.

Explore the Sigenergy product range available from VP Solar and discover the technical solutions available for your commercial and industrial solar PV projects.