What is the GW80K-MT?
- Rated output: 80,000 W (80 kW), with maximum active and apparent power of 88,000 W / 88,000 VA
- Trackers: 4 MPPTs, 3 strings per MPPT as standard with bifacial module support, 4 strings optional
- DC side: 1,100 V maximum PV voltage, 200 – 1,000 V MPPT window, 44 A per MPPT, 55.0 A short-circuit rating
- Efficiency: 98.8% peak, 98.3% European weighted, 133.0 A maximum output current, under 1 W night consumption
- Enclosure: IP65, fan cooled, 70.0 kg, 586 x 788 x 267 mm
The GoodWe GW80K-MT is an 80,000 W three-phase grid-tied inverter aimed at large factory roofs and ground-mounted arrays. What makes it interesting is high power per unit combined with a 98.8% peak efficiency, the highest of the GoodWe models we have selected in our equipment range. It is one of the units our engineers specify when designing large industrial systems around Phuket and neighbouring provinces. This page explains what the specifications mean for a real installation, and which points need confirming with the distributor before ordering.
What is the GW80K-MT and what kind of project is it built for?
The GW80K-MT is a large commercial string inverter rated at 80,000 W, able to deliver up to 88,000 W of active power and 88,000 VA of apparent power. The logic for choosing a unit this size is reducing the inverter count. A megawatt-scale system built from 80 kW units has fewer connection points, fewer switchgear enclosures and less AC cabling than the same capacity built from smaller units, which affects both installation cost and long-term maintenance. On the DC side it accepts up to 1,100 V, operates from 200 to 1,000 V, and takes 44 A per MPPT with a 55.0 A short-circuit rating — figures set deliberately high because bifacial modules collect reflected light on their rear face and therefore run above their front-side nameplate current in real conditions. The architecture of four trackers taking three strings each as standard, with a four-string option, tells you this unit is designed for large uniform roof planes rather than heavily segmented ones; a six-tracker model suits a broken roof better. One point to state plainly: the market status of the MT series should be confirmed with the GoodWe distributor in Thailand before ordering.
Highlights from the datasheet
- 88,000 W and 88,000 VA on an 80,000 W rating: the 10% headroom absorbs short bursts of high array output without immediate clipping, and leaves margin for any reactive power requirement the utility imposes at the connection point.
- 98.8% peak and 98.3% European efficiency: at several hundred kilowatts, fractions of a percent become substantial kilowatt-hours once multiplied by a full year of tropical sun. The European figure is the one to use for yield modelling, not the peak.
- 44 A per MPPT with 55.0 A short-circuit rating: ample for three high-current strings paralleled per tracker, and the reason the manufacturer lists bifacial module support as standard on this configuration.
- MPPT window reaching 1,000 V: the 200 – 1,000 V range allows longer strings, which cuts the number of strings and the total length of DC cable across a site — a real cost that rarely appears explicitly in a quotation.
- Under 1 W standby at night: trivial per unit, but on a site with many inverters the aggregate standby draw across a year affects the net yield reported back to the building owner.
- Both 3L/N/PE and 3L/PE connection: flexibility for existing building distribution where a neutral conductor may not be available at the inverter location.
- Limitations worth stating: the datasheet gives no numerical maximum PV input power and no noise rating. At 70.0 kg with fan cooling, mounting structure and a cleaning schedule both belong in the design, not in an afterthought.
Key specifications (GW80K-MT)
| Specification | Datasheet value |
|---|---|
| Nominal Output Power | 80,000 W (80 kW) |
| Max. AC Active Power / Max. AC Apparent Power | 88,000 W / 88,000 VA |
| Max. PV Input Power | |
| Max. PV Input Voltage | 1,100 V |
| MPPT Operating Voltage Range | 200 – 1,000 V (แรงดันเริ่มทำงาน 200 V, แรงดันเข้าปกติ 620 V) |
| Number of MPP Trackers / Strings per MPPT | 4 MPPT / 3 สตริงต่อ MPPT (มาตรฐาน รองรับแผง bifacial), 4 สตริง (ออปชั่น) |
| Max. Input Current per MPPT | 44 A |
| Max. Short Circuit Current per MPPT | 55.0 A |
| Max. Output Current | 133.0 A |
| Nominal Output Voltage / Grid Frequency | 400 V, 3L/N/PE หรือ 3L/PE (3 เฟส), 50/60 Hz |
| Max. Efficiency / European Efficiency | 98.8% / 98.3% |
| Ingress Protection Rating | IP65 |
| Operating Temperature Range | -30 ~ +60 °C (ความชื้น 0 – 100%, ระดับความสูงสูงสุด ไม่เกิน 4,000 m) |
| Cooling Method / Self-consumption at Night | Fan Cooling / น้อยกว่า 1 W |
| Weight / Dimensions (W x H x D) | 70.0 kg / 586 x 788 x 267 mm |
| Standard Warranty | 5 ปี (ขยายได้สูงสุดถึง 20 ปี ตามเอกสารรับประกัน Global Rev 5.2) |
Note: every figure above comes straight from the GoodWe Technologies Co., Ltd. (ชื่อที่ใช้ในหน้า About Us และเอกสารรับประกันทางการ) — ชื่อ Jiangsu GoodWe Power Supply Technology Co., Ltd. เป็นชื่อที่ปรากฏในข้อมูลบริษัทจดทะเบียน รหัสหุ้น 688390 datasheet. Actual system design (strings per MPPT, cable sizing, breakers) must be calculated for each site.
Why this model suits Phuket
- Large factory and warehouse roofs: industrial buildings around Phuket and Phang Nga typically present long single-orientation metal roofs, which is exactly what a four-tracker, three-string architecture is built for.
- Heat build-up under a tropical roof: operation to +60 °C and 0 – 100% humidity is necessary for these conditions. Because cooling is fan based, we select positions with genuine air movement and out of direct sun.
- Coastal salt exposure: IP65 covers general use, but for seaside sites we add mounting-position precautions and a tighter inspection interval on top of the rating.
- PEA territory: commercial projects at this scale require a complete submission. We handle the PEA permits process and verify the model's registration status with PEA before filing.
Who it suits
- Large factories and warehouses: sites needing high total capacity that want fewer inverters for simpler switchgear and maintenance
- Ground-mounted projects: open sites where the whole array can share one orientation, suiting long strings within the 1,000 V window
- Projects using bifacial modules: arrays over reflective surfaces that need current headroom on the rear face, matching the 44 A per MPPT rating
- Large hotels with continuous roof decks: buildings with a wide uninterrupted roof rather than the multi-level layout typical of residential blocks
- Owners focused on lifetime operating cost: fewer units means fewer monitored points and a simpler service contract
Summary
The GW80K-MT is the choice for large uniform roofs and ground-mounted arrays: 80,000 W rising to 88,000 VA, 98.8% peak efficiency, and 44 A per MPPT with bifacial support. Two items need clearing before ordering — the datasheet publishes no numerical maximum PV input power, and the MT series market status must be confirmed with the GoodWe distributor in Thailand. If your roof is split across several orientations, compare a six-tracker model first. See how a project is scoped and priced under solar cost in Phuket, review our services, or contact us for a site assessment.
See other models from this brand on the GoodWe overview, or browse all the equipment we install.
Download the datasheet (PDF) — full manufacturer specification sheet