---
title: "GoodWe GW20K-SDT-CN-G40 vs Huawei SUN2000-20KTL-M2 - Inverter Comparison | ComparePV"
description: "Compare GoodWe GW20K-SDT-CN-G40 vs Huawei SUN2000-20KTL-M2 side by side: what actually differs, efficiency, MPP trackers, battery input and the full specification."
source: "https://comparepv.com/compare-inverters/goodwe-gw20k-sdt-cn-g40/huawei-sun2000-20ktl-m2"
updated: 2026-01-16
---

# GoodWe GW20K-SDT-CN-G40 vs Huawei SUN2000-20KTL-M2

GW20K-SDT-CN-G40 leads on the differences that matter

The largest is weight: 8.0 kg lighter. 9 of 19 comparable parameters are identical, with 13 more left out because at least one datasheet does not publish them.


## The two inverters


| Attribute | A | B |
| --- | --- | --- |
| Inverter | [GoodWe GW20K-SDT-CN-G40](https://comparepv.com/inverter/goodwe-gw20k-sdt-cn-g40) | [Huawei SUN2000-20KTL-M2](https://comparepv.com/inverter/huawei-sun2000-20ktl-m2) |
| Manufacturer | GoodWe | Huawei |
| Rated AC power | 20 kW | 20 kW |
| Type | Grid-tie | Grid-tie |


## Where they differ

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


| Parameter | GW20K-SDT-CN-G40 | SUN2000-20KTL-M2 | Difference |
| --- | --- | --- | --- |
| Weight | 17.0 kg | 25.0 kg | -8.0 kg for GW20K-SDT-CN-G40 |
| Max DC voltage | 1100 V | 1080 V | 20 V apart |
| Max input current per tracker | 21.0 A | 22.0 A | +1.0 A for SUN2000-20KTL-M2 |
| Nominal AC voltage | 380 V | 400 V | 20 V apart |
| Start voltage | 160 V | 200 V | -40 V for GW20K-SDT-CN-G40 |
| Weight per kW | 0.8 kg/kW | 1.2 kg/kW | -0.4 kg/kW for GW20K-SDT-CN-G40 |
| Ingress protection | IP66 | IP65 | IP66 vs IP65 |
| MPPT voltage range | 140-1000 V | 160-950 V | 140-1000 V vs 160-950 V |
| Dimensions | 413x530x211 mm | 470x525x262 mm | 413x530x211 mm vs 470x525x262 mm |
| Cooling | forced-air | natural | forced-air vs natural |


## Every compared parameter


| Parameter | GW20K-SDT-CN-G40 | SUN2000-20KTL-M2 |
| --- | --- | --- |
| Rated AC power | 20.00 kW | 20.00 kW |
| Max AC power | 22.00 kW | 22.00 kW |
| Grid connection | 3-phase | 3-phase |
| Nominal AC voltage | 380 V | 400 V |
| Max AC current | 33.4 A | 33.5 A |
| Max PV power | - | 30.00 kW |
| DC/AC ratio | - | 1.50 |
| Max DC voltage | 1100 V | 1080 V |
| MPPT voltage range | 140-1000 V | 160-950 V |
| Start voltage | 160 V | 200 V |
| MPP trackers | 2 | 2 |
| Strings per tracker | 2 | 2 |
| Max input current per tracker | 21.0 A | 22.0 A |
| European efficiency | - | 98.3 % |
| Max efficiency | 98.6 % | 98.7 % |
| CEC efficiency | - | - |
| Battery input | - | - |
| Battery voltage | - | - |
| Max charge current | - | - |
| Backup power | - | - |
| Weight | 17.0 kg | 25.0 kg |
| Weight per kW | 0.8 kg/kW | 1.2 kg/kW |
| Dimensions | 413x530x211 mm | 470x525x262 mm |
| Ingress protection | IP66 | IP65 |
| Cooling | forced-air | natural |
| Noise | 45 dB | - |
| Max operating temperature | 60 °C | 60 °C |
| Wi-Fi | - | Yes |
| Ethernet | - | Yes |
| Arc fault protection | - | Yes |
| Integrated DC switch | Yes | Yes |
| Warranty | - | - |


## Related comparisons

- [GoodWe GW20K-SDT-CN-G40 vs Growatt MID 20KTL3-X](https://comparepv.com/compare-inverters/goodwe-gw20k-sdt-cn-g40/growatt-mid-20ktl3-x) - 8 differences, the largest is weight
- [GoodWe GW20K-SDT-CN-G40 vs Fronius Verto 20.0](https://comparepv.com/compare-inverters/goodwe-gw20k-sdt-cn-g40/fronius-international-fronius-verto-20-0) - 12 differences, the largest is max dc voltage
- [GoodWe GW20K-SDT-CN-G40 vs Sungrow SG20KTL-M](https://comparepv.com/compare-inverters/goodwe-gw20k-sdt-cn-g40/sungrow-sg20ktl-m) - 10 differences, the largest is max ac power
- [Huawei SUN2000-20KTL-M2 vs Huawei SUN2000-20KTL-M0](https://comparepv.com/compare-inverters/huawei-sun2000-20ktl-m2/huawei-sun2000-20ktl-m0) - The same specification on paper


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Source: https://comparepv.com/compare-inverters/goodwe-gw20k-sdt-cn-g40/huawei-sun2000-20ktl-m2

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