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Sungrow Commercial PV Plant System Solutions

Clean power for all

About Sungrow

Sungrow Power Supply Co., Ltd. is recognized as the world's most bankable inverter brand, with over 182 GW installed globally as of June 2021. Founded in 1997 by Professor Cao Renxian, Sungrow leads in solar inverter research and development, boasting the industry's largest dedicated R&D team. The company offers a comprehensive product portfolio including PV inverter solutions and energy storage systems for utility-scale, commercial & industrial, and residential applications, alongside internationally acclaimed floating PV plant solutions. With a robust 24-year track record, Sungrow products power installations in over 150 countries. The company employs over 2100 R&D professionals and operates an in-house testing center approved by SGS, CSA, and TÜV Rheinland. In 2019, Sungrow launched the world's largest inverter factory, achieving a global annual production capacity of 90 GW. Sungrow is committed to delivering clean power for all and advancing clean power conversion technology.

Key achievements include:

  • 24 Years in the Solar Industry
  • 3100+ Patent Applications
  • NO.1 Largest PV Inverter R&D Team

Commercial PV Plant System Solutions

Sungrow provides integrated system solutions for commercial photovoltaic (PV) plants, offering flexibility for different configurations.

Single Inverter System

This system typically includes:

  • PV String
  • WiNet-S (LAN Communication Module)
  • Three Phase Inverter
  • Load
  • Router
  • Energy Meter
  • Grid
  • Monitoring via iSolarCloud (Web/APP)

Communication pathways include DC (RS485) and AC (Ethernet, 4G).

Daisy Chain System

This configuration involves:

  • PV String
  • Three Phase Inverter
  • Smart Communication Box (e.g., COM100E)
  • Router
  • iSolarCloud Monitoring (Web/APP)
  • Energy Meter
  • Grid

Communication pathways are similar, utilizing DC (RS485) and AC (Ethernet, 4G).

Recommended Products for System Integration:

  • Inverters: SG3.0~20RT, SG33/40/50CX
  • Communication: WiNet-S, COM100E, EyeM4
  • Monitoring: iSolarCloud
  • Energy Meter: DTSD1352-C10(80)A
  • Data Logger: Logger1000B

SG110CX - Multi-MPPT String Inverter for 1000 Vdc System

High Yield

  • 9 MPPTs with max. efficiency 98.7%
  • Compatible with bifacial modules
  • Built-in PID recovery function

Saved Investment

  • Compatible with Al and Cu AC cables
  • DC 2-in-1 connection enabled
  • Q at night function

Smart O&M

  • Touch-free commissioning and remote firmware upgrade
  • Smart IV Curve diagnosis*
  • Fuse-free design with smart string current monitoring

Proven Safety

  • IP66 and C5 anti-corrosion
  • Type II SPD for both DC and AC, DC Type I+II optional
  • Compliant with global safety and grid code

Circuit Diagram Description: The diagram illustrates the power flow from DC inputs (PV strings 1-9) through DC surge protection (SPD), DC switch, MPPT units, DC link, and into the inverter circuit. The AC output is then filtered by AC EMI filters, protected by AC SPD, and connected to the grid via AC relays and L1, L2, L3, N, PE connections.

Efficiency Curve Description: The graph shows inverter efficiency on the Y-axis against normalized output power on the X-axis. It typically displays high efficiency (e.g., above 98%) across a broad range of output power, with multiple lines representing efficiency at different DC input voltages (e.g., 550V, 585V, 850V).

SG110CX Technical Specifications
Parameter Specification
Type designationSG110CX
Max. PV input voltage1100 V
Nominal PV input voltage585 V
MPP voltage range200-1000 V
No. of independent MPP inputs9
Max. PV input current26 A * 9
Max. DC short-circuit current40 A * 9
AC output power110 kVA @ 45 °C / 100 kVA @ 50 °C
Max. AC output current158.8 A
Nominal AC voltage3/N/PE, 400 V
AC voltage range320-460V
Max. efficiency / European efficiency98.7% / 98.5%
Protection and FunctionYes for most protections (DC reverse polarity, AC short-circuit, Leakage current, Grid monitoring, Ground fault, PID recovery, AFCI, Surge protection)
Dimensions (W*H*D)1051*660*362.5 mm
Weight89 kg
TopologyTransformerless
Degree of protectionIP66
Night power consumption< 2 W
Operating ambient temperature range-30 to 60 °C (derating > 50 °C)
CommunicationRS485 / Optional: WLAN, Ethernet
DC connection typeMC4 (Max. 6 mm²)
AC connection typeOT / DT terminal (Max. 240 mm²)
ComplianceMultiple international standards (IEC, VDE, EN, AS/NZS, CEI, UTE, DEWA etc.)
Grid SupportQ at night, LVRT, HVRT, active/reactive power control, power ramp rate control

SG33/40/50CX - Multi-MPPT String Inverter for 1000 Vdc System

High Yield

  • Up to 3/4/5 MPPTs with max. efficiency 98.7%
  • Compatible with bifacial modules
  • Built-in PID recovery function

Saved Investment

  • Compatible with Al and Cu AC cables
  • DC 2-in-1 connection enabled
  • Cable-free communication with optional WLAN

Smart O&M

  • Touch-free commissioning and remote firmware upgrade
  • Smart IV Curve diagnosis*
  • Fuse-free design with smart string current monitoring

Proven Safety

  • IP66 and C5 anti-corrosion
  • Type II SPD for both DC and AC, DC Type I+II Optional
  • Satisfied global safety and grid code

Circuit Diagram Description: Similar to SG110CX, showing DC inputs (strings 1-n), DC SPD, switch, MPPTs, DC link, inverter, AC filters, AC SPD, and grid connection.

Efficiency Curve Description: Similar to SG110CX, illustrating high efficiency across a wide power range for different DC input voltages.

SG33CX/SG40CX/SG50CX Technical Specifications
Parameter SG33CX SG40CX SG50CX
Max. PV input voltage1100 V1100 V1100 V
Nominal PV input voltage585 V585 V585 V
MPP voltage range200-1000 V200-1000 V200-1000 V
No. of independent MPP inputs345
No. of PV strings per MPPT222
Max. PV input current3 * 26 A4 * 26 A5 * 26 A
Max. DC short-circuit current3 * 40 A4 * 40 A5 * 40 A
AC output power33 kVA @ 45°C40 kVA @ 45°C50 kVA @ 45°C
Max. AC output current55.2 A66.9 A83.6 A
Nominal AC voltage3/N/PE, 400 V3/N/PE, 400 V3/N/PE, 400 V
AC voltage range312-528 V312-528 V312-528 V
Max. efficiency / European efficiency98.6%/98.3%98.6%/98.3%98.7%/98.4%
Dimensions (W*H*D)702*595*310 mm782*645*310 mm782*645*310 mm
Weight58 kg58 kg62 kg
Degree of protectionIP66IP66IP66
Operating ambient temperature range-30 to 60 °C (derating > 45 °C)-30 to 60 °C (derating > 45 °C)-30 to 60 °C (derating > 45 °C)
CommunicationRS485/Optional: WLAN, EthernetRS485/Optional: WLAN, EthernetRS485/Optional: WLAN, Ethernet
DC connection typeMC4 (Max. 6 mm²)MC4 (Max. 6 mm²)MC4 (Max. 6 mm²)
AC connection typeOT or DT terminal (Max.70 mm²)OT or DT terminal (Max.70 mm²)OT or DT terminal (Max.70 mm²)
ComplianceMultiple international standardsMultiple international standardsMultiple international standards
Grid SupportQ at night, LVRT, HVRT, active/reactive power control, power ramp rate controlQ at night, LVRT, HVRT, active/reactive power control, power ramp rate controlQ at night, LVRT, HVRT, active/reactive power control, power ramp rate control

SG15/17/20RT - Multi-MPPT String Inverter for 1000 Vdc System

High Yield

  • Lower startup & wider MPPT voltage
  • Compatible with bifacial modules
  • Built-in PID recovery function

Smart Management

  • Smart IV curve scanning
  • 24/7 Live monitoring
  • Remote firmware updates

Safe and Durable

  • Quick arc fault circuit interrupter
  • Built-in Type II DC & AC SPD
  • High anti-corrosion rating C5

Easy and User Friendly

  • 21 kg compact design
  • Unique push-in connectors
  • Fast and easy commissioning via App

Circuit Diagram Description: Illustrates DC inputs (DC1, DC2), DC SPD, DC switch, MPPTs, DC link, inverter, AC filters, AC SPD, and grid connection.

Efficiency Curve Description: Shows inverter efficiency vs. normalized output power, typically high efficiency across a wide power range for different DC input voltages (e.g., 550V, 600V, 850V).

SG15RT/SG17RT/SG20RT Technical Specifications
Parameter SG15RT SG17RT SG20RT
Recommended max. PV input power22.5 kWp25.5 kWp30 kWp
Max. PV input voltage1100 V1100 V1100 V
Nominal PV input voltage600 V600 V600 V
MPP voltage range160 V-1000 V160 V-1000 V160 V-1000 V
No. of independent MPP inputs222
No. of PV strings per MPPT2/22/22/2
Max. PV input current50 A (25 A/25 A)50 A (25 A/25 A)50 A (25 A/25 A)
Max. DC short-circuit current64 A (32 A/32 A)64 A (32 A/32 A)64 A (32 A/32 A)
Nominal AC power (@230 V, 50 Hz)15000 W17000 W20000 W
Max. AC output power16500 VA**18700 VA**22000 VA**
Max. AC output current25 A28.3 A31.9 A
Nominal AC voltage3/N/PE, 220/380 V3/N/PE, 230/400 V3/N/PE, 240/415 V
AC voltage range180 V - 276 V/311 V-478 V180 V - 276 V/311 V-478 V180 V - 276 V/311 V-478 V
Max. efficiency / European efficiency98.50% / 98.10%98.50% / 98.10%98.50% / 98.10%
ProtectionYes for most protections (Grid monitoring, DC reverse connection, AC short-circuit, Leakage current, Surge Protection, DC switch, AFCI, PID recovery)Yes for most protectionsYes for most protections
Dimensions (W*H*D)370*480*195 mm370*480*195 mm370*480*195 mm
Weight21 kg21 kg21 kg
TopologyTransformerlessTransformerlessTransformerless
Degree of protectionIP65IP65IP65
Operating ambient temperature range-25 °C to 60 °C-25 °C to 60 °C-25 °C to 60 °C
Max. operating altitude4000 m (derating > 2000 m)4000 m (derating > 2000 m)4000 m (derating > 2000 m)
CommunicationWLAN / Ethernet / RS485/DI/DOWLAN / Ethernet / RS485/DI/DOWLAN / Ethernet / RS485/DI/DO
DC connection typeMC4 (Max. 6 mm²)MC4 (Max. 6 mm²)MC4 (Max. 6 mm²)
AC connection typePlug and playPlug and playPlug and play

SG5.0/6.0/7.0/8.0/10/12RT - Multi-MPPT String Inverter for 1000 Vdc System

High Yield

  • Lower startup & wider MPPT voltage
  • Compatible with bifacial modules
  • Built-in PID recovery function

Smart Management

  • Smart IV curve scanning
  • 24/7 Live monitoring
  • Remote firmware updates

Safe and Durable

  • Quick arc fault circuit interrupter
  • Built-in Type II DC & AC SPD
  • High anti-corrosion rating C5

Easy and User Friendly

  • 18 kg compact design
  • Unique push-in connectors
  • Fast and easy commissioning via App

Circuit Diagram Description: Similar to SG15/17/20RT, showing DC inputs (DC1, DC2), DC SPD, DC switch, MPPTs, DC link, inverter, AC filters, AC SPD, and grid connection.

Efficiency Curve Description: Similar to SG15/17/20RT, showing high efficiency across a wide power range for different DC input voltages (e.g., 550V, 600V, 850V).

SG5.0RT to SG12RT Technical Specifications
Parameter SG5.0RT SG6.0RT SG7.0RT SG8.0RT SG10RT SG12RT
Recommended max. PV input power7.5 kWp9.0 kWp10.5 kWp12 kWp15 kWp18 kWp
Max. PV input voltage1100 V1100 V1100 V1100 V1100 V1100 V
Nominal PV input voltage600 V600 V600 V600 V600 V600 V
MPP voltage range160 V-1000 V160 V-1000 V160 V-1000 V160 V-1000 V160 V-1000 V160 V-1000 V
No. of independent MPP inputs222222
No. of PV strings per MPPT1/12/12/12/12/12/1
Max. PV input current25 A (12.5 A/12.5 A)32 A (16 A/16 A)37.5 A (25 A/12.5 A)48 A (32 A/16 A)37.5 A (25 A/12.5 A)48 A (32 A/16 A)
Max. DC short-circuit current30 A32 A (16 A/16 A)40 A (26 A/16 A)48 A (32 A/16 A)40 A (26 A/16 A)48 A (32 A/16 A)
Nominal AC power (@230 V, 50 Hz)5000 W6000 W7000 W***8000 W10000 W12000 W
Max. AC output power5500 VA**6600 VA**7700 VA***8800 VA**11000 VA**13200 VA**
Max. AC output current8.3 A10 A11.7 A13.3 A16.7 A20 A
Nominal AC voltage3/N/PE, 220/380 V3/N/PE, 230/400 V3/N/PE, 240/415 V3/N/PE, 240/415 V3/N/PE, 240/415 V3/N/PE, 240/415 V
AC voltage range180 V-276 V/311 V-478 V180 V-276 V/311 V-478 V180 V-276 V/311 V-478 V180 V-276 V/311 V-478 V180 V-276 V/311 V-478 V180 V-276 V/311 V-478 V
Max. efficiency / European efficiency98.40% / 97.40%98.40% / 97.40%98.40% / 97.70%98.50% / 97.80%98.50% / 97.90%98.50% / 97.90%
Dimensions (W*H*D)370*480*195 mm370*480*195 mm370*480*195 mm370*480*195 mm370*480*195 mm370*480*195 mm
Weight18 kg18 kg18 kg18 kg18 kg18 kg
TopologyTransformerlessTransformerlessTransformerlessTransformerlessTransformerlessTransformerless
Degree of protectionIP65IP65IP65IP65IP65IP65
Operating ambient temperature range-25 °C to 60 °C-25 °C to 60 °C-25 °C to 60 °C-25 °C to 60 °C-25 °C to 60 °C-25 °C to 60 °C
Max. operating altitude4000 m (derating > 2000 m)4000 m (derating > 2000 m)4000 m (derating > 2000 m)4000 m (derating > 2000 m)4000 m (derating > 2000 m)4000 m (derating > 2000 m)
Cooling methodNatural coolingNatural coolingNatural coolingNatural coolingNatural coolingNatural cooling
Noise (Typical)35 dB (A)35 dB (A)35 dB (A)35 dB (A)35 dB (A)35 dB (A)
CommunicationWLAN/Ethernet / RS485/DI/DOWLAN/Ethernet / RS485/DI/DOWLAN/Ethernet / RS485/DI/DOWLAN/Ethernet / RS485/DI/DOWLAN/Ethernet / RS485/DI/DOWLAN/Ethernet / RS485/DI/DO
DC connection typeMC4 (Max. 6 mm²)MC4 (Max. 6 mm²)MC4 (Max. 6 mm²)MC4 (Max. 6 mm²)MC4 (Max. 6 mm²)MC4 (Max. 6 mm²)
AC connection typePlug and playPlug and playPlug and playPlug and playPlug and playPlug and play

SG3.0RT/SG4.0RT - Multi-MPPT String Inverter for 1000 Vdc System

High Yield

  • Lower startup & wider MPPT voltage
  • Compatible with bifacial modules
  • Built-in PID recovery function

Safe and Durable

  • Quick arc fault circuit interrupter
  • Built-in Type II DC&AC SPD
  • High anti-corrosion rating C5

Smart Management

  • Smart IV curve scanning
  • 24/7 live monitoring
  • Remote firmware updates

Easy and User Friendly

  • 18 kg compact design
  • Unique push-in connectors
  • Fast and easy commissioning via App

Circuit Diagram Description: Similar to other RT series inverters, showing DC inputs (DC1, DC2), DC SPD, DC switch, MPPTs, DC link, inverter, AC filters, AC SPD, and grid connection.

Efficiency Curve Description: Shows inverter efficiency vs. normalized output power, with high efficiency across a wide power range for different DC input voltages (e.g., 160V, 640V, 850V).

SG3.0RT/SG4.0RT Technical Specifications
Parameter SG3.0RT SG4.0RT
Recommended max. PV input power4.5 kWp6.0 kWp
Max. PV input voltage1100 V1100 V
Nominal PV input voltage600 V600 V
MPP voltage range160 V-1000 V160 V-1000 V
No. of independent MPP inputs22
No. of PV strings per MPPT1/11/1
Max. PV input current25 A (12.5 A/ 12.5 A)32 A (16 A/16 A)
Max. DC short-circuit current30 A32 A (16 A/16 A)
Nominal AC power (@230V, 50Hz)3000 W4000 W
Max. AC output power3300 VA4400 VA
Max. AC output current5.1 A6.8 A
Nominal AC voltage3/N/PE, 220/380 V3/N/PE, 230/400 V
AC voltage range180 V - 276 V/311 V-478 V180 V - 276 V/311 V-478 V
Max. efficiency / European efficiency98.5% / 97.0%98.2% / 97.0%
Dimensions (W*H*D)370*480*195 mm370*480*195 mm
Weight18 kg18 kg
TopologyTransformerlessTransformerless
Degree of protectionIP65IP65
Operating ambient temperature range-25 °C to 60 °C-25 °C to 60 °C
Max. operating altitude4000m (derating > 2000 m)4000m (derating > 2000 m)
Cooling methodNatural coolingNatural cooling
Noise (Typical)35 dB (A)35 dB (A)
CommunicationWLAN / Ethernet / RS485/DI/DOWLAN / Ethernet / RS485/DI/DO
DC connection typeMC4 (Max. 6 mm²)MC4 (Max. 6 mm²)
AC connection typePlug and playPlug and play
ComplianceMultiple international standardsMultiple international standards
Grid SupportYes for most protectionsYes for most protections

System Accessories

COM100 / COM100E - Smart Communication Box

Features: Flexible networking (RS485, Ethernet, WLAN), supports energy meters, meteo stations, sensors. Convenient O&M for batch parameter settings, firmware updates, and remote plant maintenance via Web access. Easy operation with night light and robust enclosure.

Specifications: Supports up to 30 devices. IP66 protection. Operating temperature: -30 °C to 60 °C. COM100E includes Logger1000B, AC adapter, SPD, Air switch, and Night light, supporting WLAN communication.

Logger1000 / Logger1000B - Data Logger

Features: Supports RS485, Ethernet, WLAN communication. Assists maintenance with batch parameter setting and firmware updates. Enables remote Web access for plant maintenance and local monitoring. Easy operation with automatic Modbus address distribution and built-in Web server.

Specifications: Supports up to 30 devices. IP20 protection. Dimensions: 200 mm * 110 mm * 60 mm. Weight: 500 g. Mounting: Top-hat rail or wall mounting.

WiNet-S - LAN Communication Module

Features: Smart and flexible networking via WLAN or Ethernet, enabling one-click access to iSolarCloud. Automatic network configuration and easy setup. Simple and efficient with plug-and-play installation, second-level data intervals, and support for Smart IV Curve Diagnosis. Safe and reliable with encrypted transmission and IP66 rating.

Specifications: Supports 1 device. 5 VDC, ≤5 W power consumption. Operating temperature: -30 °C to 60 °C. IP66 protection.

EyeM4 - Wireless Communication Module

Features: Smart and flexible, providing one-click access to iSolarCloud and managing up to 10 inverters for remote maintenance and control. Easy plug-and-play installation. Convenient O&M via built-in Web server and remote Web access for plant maintenance.

Specifications: Manages up to 10 devices. Supports 4G and WLAN communication. 5 VDC, <4 W power consumption. Operating temperature: -30 °C to 60 °C. IP66 protection.

iSolarCloud - Remote Monitoring and O&M Platform

Features: Centralized power plant management for optimized OPEX. Simple network infrastructure and flexible data access via Web portal and App. Safe and reliable with hierarchical access management, cyber security, and redundant data storage. Simple and efficient with multi-dimensional analysis, automated reports, and quick troubleshooting.

Specifications: Supports various devices including inverters, meters, and stations. Monitoring capacity exceeds 100 GW. Available in multiple languages including English. Data storage capability: >100 PB. System reliability: 99.99%.

DTSD1352-C/10 (80)A & DTSD1352-C/1 (6)A - Three-phase Smart Energy Meter

Features: Measures electrical parameters for PV plants. Supports RS485 communication.

Specifications: Nominal voltage: 230 Vac/400 Vac. Max. operating current: 80 A (for C/10) or 1 A (6A via CTs). Grid frequency: 50 Hz/60 Hz. Measurement accuracy: Class 0.5 (Active). Ingress protection: IP20. Operating temperature: -25 to 55 °C.

Global Reference

Sungrow's solutions are deployed worldwide, with over 63 GW of String Inverters installed globally. Examples include:

  • 550 kW Rooftop PV Plant, Germany
  • 4 MW PV Plant, Ninh Thuan province, Vietnam
  • 6.5 MW PV Plant, Spain
  • 2.25 MW PV Plant, USA
  • 1 MW PV Plant, Vietnam
  • 1.4 MW PV Plant, Vietnam
  • 660kW PV Plant, India

Global Headquarters

Sungrow Power Supply Co., Ltd.

Address: No.1699 Xiyou Rd, New&High Technology Industrial Development Zone, 230088, Hefei, P.R.China

Tel: +86 551 6532 7834

Email: info@sungrow.cn

Website: www.sungrowpower.com

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