Solis S6-GC80K 80kW Three-Phase 8-MPPT Commercial Grid-Tied Inverter
The Solis S6-GC80K (part number SOL-S6-GC80K) is an 80 kW three-phase, 8-MPPT commercial and industrial grid-tied string inverter. Part of the S6-GC(80-125)K series, it features 8 MPPT trackers with 16 string inputs at up to 21 A per string, support for greater than 150% DC/AC ratio with a maximum PV DC input of 120 kW, and a maximum efficiency of 98.7% (98.3% EU efficiency). With a rated output of 80 kW and maximum output of 88 kW, it is the entry-level model in the S6 C&I series, sharing the same physical platform as the 100 kW, 110 kW, and 125 kW variants. The S6-GC80K includes AI-based AFCI protection, real-time PV grounding detection, intelligent I-V curve scanning, IP66 ingress protection, and dual independent RS485 ports. Supports master-slave export power control with up to 10 units in parallel. G99 certified. Available from DECO Group, a UK-based solar trade wholesaler.
Key Technical Details
- Part number: SOL-S6-GC80K
- Manufacturer model: S6-GC80K
- Inverter type: Three-phase C&I grid-tied string inverter
- Rated AC output power: 80 kW
- Maximum output power: 88 kW
- Maximum apparent output power: 88 kVA
- Rated grid voltage: 3/N/PE, 220 V / 380 V, 230 V / 400 V
- Rated grid frequency: 50 / 60 Hz
- Rated grid output current: 121.6 A / 115.5 A
- Maximum output current: 133.7 A
- Power factor: greater than 0.99 (0.8 leading to 0.8 lagging)
- THDi: less than 3%
- Maximum efficiency: 98.7%
- EU efficiency: 98.3%
- Transformer: None (transformerless)
- Maximum PV DC input power: 120 kW
- Maximum DC input voltage: 1,100 V
- Rated DC voltage: 600 V
- MPPT voltage range: 160 V to 1,000 V
- DC startup voltage: 180 V
- Maximum input current: 4 x (42 A / 36 A)
- Maximum short-circuit current: 8 x 50 A
- MPPT quantity: 8
- Maximum string inputs: 16 (2 per MPPT)
- Maximum input current per string: 18 A / 21 A
- DC/AC ratio: greater than 150%
- Integrated DC switch: Yes
- Integrated AC switch: Optional
- Integrated EPM function: Optional (up to 10 devices)
- AFCI 2.0: Optional (AI-based)
- PID recovery: Optional
- Surge protection: Type II (DC and AC)
- Strings monitoring: Yes
- I-V curve scanning: Yes
- Night SVG function: Yes
- Communication: RS485 (dual independent); optional WiFi, GPRS, PLC
- Display: LCD
- DC connection: MC4
- AC connection: OT terminal (max 240 mm²)
- Cooling: Intelligent fan-cooling
- Ingress protection: IP66
- Operating ambient temperature: -30°C to +60°C
- Relative humidity: 0% to 100%
- Maximum operating altitude: 4,000 m
- Self-consumption (night): less than 2 W
- Dimensions: 1,014 x 567 x 345 mm (W x H x D)
- Weight: 93 kg
Key Features
- 80 kW rated output with 88 kW maximum and 120 kW DC input for greater than 150% DC/AC oversizing
- 8 MPPT trackers with 16 string inputs for flexible array design
- Up to 21 A per string, compatible with high-power 182 mm and 210 mm PV modules
- 98.7% maximum efficiency and 98.3% EU efficiency
- AI-based millisecond arc protection (AFCI 2.0, optional)
- Real-time PV grounding detection and protection
- Intelligent I-V curve scanning and strings monitoring
- IP66 ingress protection for outdoor installation
- Dual independent RS485 ports for third-party integration
- Master-slave export power control with up to 10 units in parallel
- Supports single and multiple genset applications without an external genset controller
- SolisCloud ready for remote monitoring, diagnostics, and firmware upgrades
- Night SVG function
System Compatibility
- Part of the Solis S6-GC(80-125)K three-phase C&I inverter series
- MC4 DC connectors; OT terminal AC connection (max 240 mm²)
- No WiFi/USB datalogger included in the box
- Optional export power meter: METER-3PH-CT3
- Optional WiFi/LAN logger: S2-WL-ST-USB
- Optional PLC communication
- EPM still required for the S6-GC(80-125)K range (UK installations)
- Extended warranty available: SOL-WAR-10Y-S6-GC80-125K (10-year extension)
Protection Features
- AI-based AFCI 2.0 (optional)
- Real-time PV grounding detection and protection
- Strings monitoring
- DC reverse polarity protection
- DC short-circuit protection
- Output overcurrent protection
- Surge protection: Type II (DC and AC)
- Anti-islanding protection
- Temperature protection
- Arc fault and RSD co-operation (optional)
- IP66 ingress protection
Certifications and Compliance
- G99
- IEC 61727
- EN 50549-1/2
- VDE 4110
- IEC/EN 62109-1/2 (Safety)
- IEC/EN 61000-6-2/4 (EMC)
- NRS 097-2-1
- CE certified
Included Components
- 1 x Solis S6-GC80K inverter
- 1 x Mounting bracket
- 2 x Fastening screws
- 16 x DC connectors
- 1 x User manual
Installation Notes
- At 93 kg, a minimum of two people are required for safe handling and mounting
- IP66 rated for indoor or outdoor installation
- Install vertically or with a slight backward tilt up to 15 degrees
- Maintain at least 500 mm clearance between inverters and 1,000 mm above for ventilation
- Avoid direct sunlight where possible to reduce thermal derating
- Inverter surface can exceed 75°C during operation
- For startup: AC ON first, then DC ON. For shutdown: Grid Off, then AC OFF, then DC OFF
- Must be installed by a qualified electrician or competent commercial solar installer
Warranty
- Standard warranty: 5 years
- Extended warranty: available up to 20 years (SOL-WAR-10Y-S6-GC80-125K for 10-year extension)
Common Questions
Click a question below to reveal the answer.
How does the Solis S6-GC80K compare to the larger S6 models?
The S6-GC80K shares the same physical platform (1,014 x 567 x 345 mm, 93 kg) and 98.7% max efficiency as the 100 kW, 110 kW, and 125 kW variants. It has 8 MPPTs with 16 strings (vs 10 MPPTs/20 strings on the 100–125 kW models). It accepts up to 120 kW DC input and delivers 80 kW rated / 88 kW max output.
How many MPPT inputs does the Solis S6-GC80K have?
The S6-GC80K has 8 MPPT trackers with 16 string inputs (2 per MPPT), supporting up to 21 A per string.
Does the Solis S6-GC80K include monitoring equipment?
No. There is no WiFi/USB datalogger in the box. Use the S2-WL-ST-USB for WiFi/LAN connectivity, and the METER-3PH-CT3 for export power management. An EPM is still required for UK installations.
Can multiple Solis S6-GC80K inverters be installed in parallel?
Yes. The S6-GC80K supports master-slave export power control with up to 10 units in parallel.
About Solis
Ginlong Solis, established in 2005, is an internationally recognised manufacturer of solar inverters for residential, commercial, and utility-scale applications. Designed by a global R&D team of specialists from eight countries, Solis inverters deliver high efficiency, wide input voltage ranges, and precise MPPT performance.
DECO Group supplies the complete Solis S6-GC(80-125)K series alongside the S6-GC150K and compatible monitoring accessories, export power meters, and extended warranty packages. Browse our commercial inverter catalogue for the full Solis C&I range.
About DECO Group
We are a UK-based solar wholesaler supplying commercial-scale inverters and system accessories to professional solar installers and electrical contractors. Our Solis C&I range covers 80 kW to 150 kW three-phase grid-tied inverters. Contact our commercial team or visit decogroup.co.uk for project support.
