---
title: "GoodWe GW12K-ET-20 (ET G2) vs Huawei SUN2000-12KTL-M1 (High current version) - Inverter Comparison | ComparePV"
description: "Compare GoodWe GW12K-ET-20 (ET G2) vs Huawei SUN2000-12KTL-M1 (High current version) side by side: what actually differs, efficiency, MPP trackers, battery input and the full specification."
source: "https://comparepv.com/compare-inverters/goodwe-gw12k-et-20-et-g2/huawei-sun2000-12ktl-m1-high-current-version"
updated: 2026-01-16
---

# GoodWe GW12K-ET-20 (ET G2) vs Huawei SUN2000-12KTL-M1 (High current version)

GW12K-ET-20 (ET G2) leads on the differences that matter

The largest is max dc voltage: 100 V apart. 11 of 26 comparable parameters are identical, with 6 more left out because at least one datasheet does not publish them.


## The two inverters


| Attribute | A | B |
| --- | --- | --- |
| Inverter | [GoodWe GW12K-ET-20 (ET G2)](https://comparepv.com/inverter/goodwe-gw12k-et-20-et-g2) | [Huawei SUN2000-12KTL-M1 (High current version)](https://comparepv.com/inverter/huawei-sun2000-12ktl-m1-high-current-version) |
| Manufacturer | GoodWe | Huawei |
| Rated AC power | 12 kW | 12 kW |
| Type | Hybrid | Hybrid |


## Where they differ

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


| Parameter | GW12K-ET-20 (ET G2) | SUN2000-12KTL-M1 (High current version) | Difference |
| --- | --- | --- | --- |
| Max DC voltage | 1000 V | 1100 V | 100 V apart |
| Max input current per tracker | 16.0 A | 13.5 A | +2.5 A for GW12K-ET-20 (ET G2) |
| Max PV power | 19.20 kW | 18.00 kW | 1.20 kW apart |
| Max charge current | 40 A | 17 A | +23 A for GW12K-ET-20 (ET G2) |
| Weight | 25.0 kg | 17.0 kg | -8.0 kg for SUN2000-12KTL-M1 (High current version) |
| Weight per kW | 2.1 kg/kW | 1.4 kg/kW | -0.7 kg/kW for SUN2000-12KTL-M1 (High current version) |
| Max efficiency | 98.2 % | 98.6 % | +0.4 pp for SUN2000-12KTL-M1 (High current version) |
| DC/AC ratio | 1.60 | 1.50 | +0.10 for GW12K-ET-20 (ET G2) |
| Max AC current | 26.1 A | 18.4 A | 7.7 A apart |
| Start voltage | 150 V | 200 V | -50 V for GW12K-ET-20 (ET G2) |
| MPP trackers | 3 | 2 | +1 trackers for GW12K-ET-20 (ET G2) |
| Ingress protection | IP66 | IP65 | IP66 vs IP65 |
| MPPT voltage range | 120-850 V | 140-980 V | 120-850 V vs 140-980 V |
| Battery voltage | 150-720 V | 600 V ~ 980 V | 150-720 V vs 600 V ~ 980 V |
| Dimensions | 460x496x221 mm | 470x525x166 mm | 460x496x221 mm vs 470x525x166 mm |


## Every compared parameter


| Parameter | GW12K-ET-20 (ET G2) | SUN2000-12KTL-M1 (High current version) |
| --- | --- | --- |
| Rated AC power | 12.00 kW | 12.00 kW |
| Max AC power | 12.00 kW | 12.00 kW |
| Grid connection | 3-phase | 3-phase |
| Nominal AC voltage | 400 V | 400 V |
| Max AC current | 26.1 A | 18.4 A |
| Max PV power | 19.20 kW | 18.00 kW |
| DC/AC ratio | 1.60 | 1.50 |
| Max DC voltage | 1000 V | 1100 V |
| MPPT voltage range | 120-850 V | 140-980 V |
| Start voltage | 150 V | 200 V |
| MPP trackers | 3 | 2 |
| Strings per tracker | 1 | 1 |
| Max input current per tracker | 16.0 A | 13.5 A |
| European efficiency | - | 98.2 % |
| Max efficiency | 98.2 % | 98.6 % |
| CEC efficiency | - | - |
| Battery input | Yes | Yes |
| Battery voltage | 150-720 V | 600 V ~ 980 V |
| Max charge current | 40 A | 17 A |
| Backup power | - | 3.3 kW |
| Weight | 25.0 kg | 17.0 kg |
| Weight per kW | 2.1 kg/kW | 1.4 kg/kW |
| Dimensions | 460x496x221 mm | 470x525x166 mm |
| Ingress protection | IP66 | IP65 |
| Cooling | natural | natural |
| Noise | - | - |
| Max operating temperature | 60 °C | 60 °C |
| Wi-Fi | Yes | Yes |
| Ethernet | - | Yes |
| Arc fault protection | Yes | Yes |
| Integrated DC switch | Yes | Yes |
| Warranty | - | - |


## Related comparisons

- [GoodWe GW12K-ET-20 (ET G2) vs Growatt MID 12KTL3-XH](https://comparepv.com/compare-inverters/goodwe-gw12k-et-20-et-g2/growatt-mid-12ktl3-xh) - 15 differences, the largest is max dc voltage
- [GoodWe GW12K-ET-20 (ET G2) vs Huawei SUN5000-12K-MAP0](https://comparepv.com/compare-inverters/goodwe-gw12k-et-20-et-g2/huawei-sun5000-12k-map0) - 14 differences, the largest is max dc voltage
- [GoodWe GW12K-ET-20 (ET G2) vs Huawei SUN2000-12K-MAP0](https://comparepv.com/compare-inverters/goodwe-gw12k-et-20-et-g2/huawei-sun2000-12k-map0) - 14 differences, the largest is max dc voltage
- [Huawei SUN2000-12KTL-M1 (High current version) vs Huawei SUN2000-12KTL-M1](https://comparepv.com/compare-inverters/huawei-sun2000-12ktl-m1-high-current-version/huawei-sun2000-12ktl-m1) - The same specification on paper


---

Source: https://comparepv.com/compare-inverters/goodwe-gw12k-et-20-et-g2/huawei-sun2000-12ktl-m1-high-current-version

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