---
title: "GoodWe GW30K-MT vs SMA Solar STP 30-US-50 (Sunny Tripower X-US 30) - Inverter Comparison | ComparePV"
description: "Compare GoodWe GW30K-MT vs SMA Solar STP 30-US-50 (Sunny Tripower X-US 30) side by side: what actually differs, efficiency, MPP trackers, battery input and the full specification."
source: "https://comparepv.com/compare-inverters/goodwe-gw30k-mt/sma-solar-stp-30-us-50-sunny-tripower-x-us-30"
updated: 2026-01-16
---

# GoodWe GW30K-MT vs SMA Solar STP 30-US-50 (Sunny Tripower X-US 30)

GW30K-MT leads on the differences that matter

The largest is max dc voltage: 100 V apart. 9 of 18 comparable parameters are identical, with 14 more left out because at least one datasheet does not publish them.


## The two inverters


| Attribute | A | B |
| --- | --- | --- |
| Inverter | [GoodWe GW30K-MT](https://comparepv.com/inverter/goodwe-gw30k-mt) | [SMA Solar STP 30-US-50 (Sunny Tripower X-US 30)](https://comparepv.com/inverter/sma-solar-stp-30-us-50-sunny-tripower-x-us-30) |
| Manufacturer | GoodWe | SMA Solar |
| Rated AC power | 30 kW | 30 kW |
| Type | Grid-tie | Grid-tie |


## Where they differ

Ranked by how much the difference matters, not by datasheet order.


| Parameter | GW30K-MT | STP 30-US-50 (Sunny Tripower X-US 30) | Difference |
| --- | --- | --- | --- |
| Max DC voltage | 1100 V | 1000 V | 100 V apart |
| Max input current per tracker | 30.0 A | 24.0 A | +6.0 A for GW30K-MT |
| Max AC power | 33.00 kW | 30.00 kW | 3.00 kW apart |
| Weight | 40.0 kg | 35.0 kg | -5.0 kg for STP 30-US-50 (Sunny Tripower X-US 30) |
| Nominal AC voltage | 400 V | 480 V | 80 V apart |
| Max AC current | 48.0 A | 36.0 A | 12.0 A apart |
| Ingress protection | IP65 | Type 4X (UL 50E) | IP65 vs Type 4X (UL 50E) |
| MPPT voltage range | 200-950 V | 150-1000 V | 200-950 V vs 150-1000 V |
| Dimensions | 590x480x200 mm | 762x728x266 mm | 590x480x200 mm vs 762x728x266 mm |


## Every compared parameter


| Parameter | GW30K-MT | STP 30-US-50 (Sunny Tripower X-US 30) |
| --- | --- | --- |
| Rated AC power | 30.00 kW | 30.00 kW |
| Max AC power | 33.00 kW | 30.00 kW |
| Grid connection | 3-phase | 3-phase |
| Nominal AC voltage | 400 V | 480 V |
| Max AC current | 48.0 A | 36.0 A |
| Max PV power | - | 45.00 kW |
| DC/AC ratio | - | 1.50 |
| Max DC voltage | 1100 V | 1000 V |
| MPPT voltage range | 200-950 V | 150-1000 V |
| Start voltage | 180 V | 188 V |
| MPP trackers | - | 3 |
| Strings per tracker | 2 | 2 |
| Max input current per tracker | 30.0 A | 24.0 A |
| European efficiency | 98.5 % | - |
| Max efficiency | 98.8 % | - |
| CEC efficiency | - | 98.0 % |
| Battery input | - | - |
| Battery voltage | - | - |
| Max charge current | - | - |
| Backup power | - | - |
| Weight | 40.0 kg | 35.0 kg |
| Weight per kW | 1.3 kg/kW | 1.2 kg/kW |
| Dimensions | 590x480x200 mm | 762x728x266 mm |
| Ingress protection | IP65 | Type 4X (UL 50E) |
| Cooling | forced-air | forced-air |
| Noise | - | 59 dB |
| Max operating temperature | 60 °C | 60 °C |
| Wi-Fi | Yes | Yes |
| Ethernet | - | Yes |
| Arc fault protection | - | Yes |
| Integrated DC switch | Yes | Yes |
| Warranty | - | 10 yrs |


## Related comparisons

- [GoodWe GW30K-MT vs Growatt MID 30KTL3-X2 (Pro.E)](https://comparepv.com/compare-inverters/goodwe-gw30k-mt/growatt-mid-30ktl3-x2-pro-e) - 9 differences, the largest is max input current per tracker
- [GoodWe GW30K-MT vs Growatt MID 30KTL3-X](https://comparepv.com/compare-inverters/goodwe-gw30k-mt/growatt-mid-30ktl3-x) - 9 differences, the largest is max input current per tracker
- [GoodWe GW30K-MT vs Growatt MID 30KTL3-X2-1](https://comparepv.com/compare-inverters/goodwe-gw30k-mt/growatt-mid-30ktl3-x2-1) - 9 differences, the largest is max input current per tracker


---

Source: https://comparepv.com/compare-inverters/goodwe-gw30k-mt/sma-solar-stp-30-us-50-sunny-tripower-x-us-30

Not in this file, on the page: a written summary generated on request.