---
title: "Deye SUN-20K-G02 vs Growatt MID 20KTL3-X - Inverter Comparison | ComparePV"
description: "Compare Deye SUN-20K-G02 vs Growatt MID 20KTL3-X side by side: what actually differs, efficiency, MPP trackers, battery input and the full specification."
source: "https://comparepv.com/compare-inverters/deye-sun-20k-g02/growatt-mid-20ktl3-x"
updated: 2026-01-17
---

# Deye SUN-20K-G02 vs Growatt MID 20KTL3-X

MID 20KTL3-X leads on the differences that matter

The largest is european efficiency: 0.8 pp more efficient. 13 of 22 comparable parameters are identical, with 10 more left out because at least one datasheet does not publish them.


## The two inverters


| Attribute | A | B |
| --- | --- | --- |
| Inverter | [Deye SUN-20K-G02](https://comparepv.com/inverter/deye-sun-20k-g02) | [Growatt MID 20KTL3-X](https://comparepv.com/inverter/growatt-mid-20ktl3-x) |
| Manufacturer | Deye | Growatt |
| 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 | SUN-20K-G02 | MID 20KTL3-X | Difference |
| --- | --- | --- | --- |
| European efficiency | 97.8 % | 98.6 % | +0.8 pp for MID 20KTL3-X |
| Max DC voltage | 1000 V | 1100 V | 100 V apart |
| Max PV power | 26.00 kW | 30.00 kW | 4.00 kW apart |
| Weight | 28.0 kg | 23.0 kg | -5.0 kg for MID 20KTL3-X |
| DC/AC ratio | 1.30 | 1.50 | +0.20 for MID 20KTL3-X |
| Max operating temperature | 65 °C | 60 °C | +5 °C for SUN-20K-G02 |
| Weight per kW | 1.4 kg/kW | 1.1 kg/kW | -0.2 kg/kW for MID 20KTL3-X |
| MPPT voltage range | 200-850 V | 200-1000 V | 200-850 V vs 200-1000 V |
| Dimensions | 520x400x240 mm | 395x525x222 mm | 520x400x240 mm vs 395x525x222 mm |


## Every compared parameter


| Parameter | SUN-20K-G02 | MID 20KTL3-X |
| --- | --- | --- |
| 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 | 400 V | 400 V |
| Max AC current | 31.9 A | 31.9 A |
| Max PV power | 26.00 kW | 30.00 kW |
| DC/AC ratio | 1.30 | 1.50 |
| Max DC voltage | 1000 V | 1100 V |
| MPPT voltage range | 200-850 V | 200-1000 V |
| Start voltage | 250 V | 250 V |
| MPP trackers | 2 | 2 |
| Strings per tracker | - | - |
| Max input current per tracker | - | - |
| European efficiency | 97.8 % | 98.6 % |
| Max efficiency | 98.6 % | 98.8 % |
| CEC efficiency | - | - |
| Battery input | - | - |
| Battery voltage | - | - |
| Max charge current | - | - |
| Backup power | - | - |
| Weight | 28.0 kg | 23.0 kg |
| Weight per kW | 1.4 kg/kW | 1.1 kg/kW |
| Dimensions | 520x400x240 mm | 395x525x222 mm |
| Ingress protection | IP65 | IP65 |
| Cooling | forced-air | forced-air |
| Noise | 45 dB | - |
| Max operating temperature | 65 °C | 60 °C |
| Wi-Fi | Yes | Yes |
| Ethernet | Yes | Yes |
| Arc fault protection | - | - |
| Integrated DC switch | Yes | Yes |
| Warranty | - | 5 yrs |


## Related comparisons

- [Deye SUN-20K-G02 vs Fronius Verto 20.0](https://comparepv.com/compare-inverters/deye-sun-20k-g02/fronius-international-fronius-verto-20-0) - 14 differences, the largest is european efficiency
- [Deye SUN-20K-G02 vs Sungrow SG20KTL-M](https://comparepv.com/compare-inverters/deye-sun-20k-g02/sungrow-sg20ktl-m) - 8 differences, the largest is european efficiency
- [Deye SUN-20K-G02 vs Huawei SUN2000-20KTL-M2](https://comparepv.com/compare-inverters/deye-sun-20k-g02/huawei-sun2000-20ktl-m2) - 11 differences, the largest is european efficiency
- [Growatt MID 20KTL3-X vs Huawei SUN2000-20KTL-M0](https://comparepv.com/compare-inverters/growatt-mid-20ktl3-x/huawei-sun2000-20ktl-m0) - 8 differences, the largest is weight


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Source: https://comparepv.com/compare-inverters/deye-sun-20k-g02/growatt-mid-20ktl3-x

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