--- title: "GoodWe GW15K-ET-20 (ET G2) vs Growatt MID 15KTL3-XH - Inverter Comparison | ComparePV" description: "Compare GoodWe GW15K-ET-20 (ET G2) vs Growatt MID 15KTL3-XH side by side: what actually differs, efficiency, MPP trackers, battery input and the full specification." source: "https://comparepv.com/compare-inverters/goodwe-gw15k-et-20-et-g2/growatt-mid-15ktl3-xh" updated: 2026-01-16 --- # GoodWe GW15K-ET-20 (ET G2) vs Growatt MID 15KTL3-XH 15 differences, and they point both ways The largest is max dc voltage: 100 V apart. 10 of 25 comparable parameters are identical, with 7 more left out because at least one datasheet does not publish them. ## The two inverters | Attribute | A | B | | --- | --- | --- | | Inverter | [GoodWe GW15K-ET-20 (ET G2)](https://comparepv.com/inverter/goodwe-gw15k-et-20-et-g2) | [Growatt MID 15KTL3-XH](https://comparepv.com/inverter/growatt-mid-15ktl3-xh) | | Manufacturer | GoodWe | Growatt | | Rated AC power | 15 kW | 15 kW | | Type | Hybrid | Hybrid | ## Where they differ Ranked by how much the difference matters, not by datasheet order. | Parameter | GW15K-ET-20 (ET G2) | MID 15KTL3-XH | Difference | | --- | --- | --- | --- | | Max DC voltage | 1000 V | 1100 V | 100 V apart | | Max input current per tracker | 16.0 A | 32.0 A | +16.0 A for MID 15KTL3-XH | | Max efficiency | 98.2 % | 98.8 % | +0.5 pp for MID 15KTL3-XH | | Max PV power | 24.00 kW | 30.00 kW | 6.00 kW apart | | DC/AC ratio | 1.60 | 2.00 | +0.40 for MID 15KTL3-XH | | Max charge current | 40 A | 25 A | +15 A for GW15K-ET-20 (ET G2) | | Weight | 25.0 kg | 31.0 kg | -6.0 kg for GW15K-ET-20 (ET G2) | | Weight per kW | 1.7 kg/kW | 2.1 kg/kW | -0.4 kg/kW for GW15K-ET-20 (ET G2) | | Start voltage | 150 V | 200 V | -50 V for GW15K-ET-20 (ET G2) | | Max AC current | 26.1 A | 25.0 A | 1.1 A apart | | MPPT voltage range | 120-850 V | 160-1000 V | 120-850 V vs 160-1000 V | | Battery voltage | 150-720 V | 600-980 V | 150-720 V vs 600-980 V | | Strings per tracker | 1 | 2 | 1 string apart | | Dimensions | 460x496x221 mm | 435x580x230 mm | 460x496x221 mm vs 435x580x230 mm | | Cooling | natural | forced-air | natural vs forced-air | ## Every compared parameter | Parameter | GW15K-ET-20 (ET G2) | MID 15KTL3-XH | | --- | --- | --- | | Rated AC power | 15.00 kW | 15.00 kW | | Max AC power | 15.00 kW | 15.00 kW | | Grid connection | 3-phase | 3-phase | | Nominal AC voltage | 400 V | 400 V | | Max AC current | 26.1 A | 25.0 A | | Max PV power | 24.00 kW | 30.00 kW | | DC/AC ratio | 1.60 | 2.00 | | Max DC voltage | 1000 V | 1100 V | | MPPT voltage range | 120-850 V | 160-1000 V | | Start voltage | 150 V | 200 V | | MPP trackers | 3 | - | | Strings per tracker | 1 | 2 | | Max input current per tracker | 16.0 A | 32.0 A | | European efficiency | - | 98.5 % | | Max efficiency | 98.2 % | 98.8 % | | CEC efficiency | - | - | | Battery input | Yes | Yes | | Battery voltage | 150-720 V | 600-980 V | | Max charge current | 40 A | 25 A | | Backup power | - | - | | Weight | 25.0 kg | 31.0 kg | | Weight per kW | 1.7 kg/kW | 2.1 kg/kW | | Dimensions | 460x496x221 mm | 435x580x230 mm | | Ingress protection | IP66 | IP66 | | Cooling | natural | forced-air | | Noise | - | - | | Max operating temperature | 60 °C | 60 °C | | Wi-Fi | Yes | Yes | | Ethernet | - | - | | Arc fault protection | Yes | Yes | | Integrated DC switch | Yes | Yes | | Warranty | - | 5 yrs | ## Related comparisons - [GoodWe GW15K-ET-20 (ET G2) vs Growatt MOD 15KTL3-HU](https://comparepv.com/compare-inverters/goodwe-gw15k-et-20-et-g2/growatt-mod-15ktl3-hu) - 12 differences, the largest is max input current per tracker - [GoodWe GW15K-ET-20 (ET G2) vs Huawei SUN2000-15K-MB0](https://comparepv.com/compare-inverters/goodwe-gw15k-et-20-et-g2/huawei-sun2000-15k-mb0) - 17 differences, the largest is max dc voltage - [GoodWe GW15K-ET-20 (ET G2) vs Sofar Solar HYD 15KTL-3PH](https://comparepv.com/compare-inverters/goodwe-gw15k-et-20-et-g2/sofar-solar-hyd-15ktl-3ph) - 12 differences, the largest is max pv power - [Growatt MID 15KTL3-XH vs Sungrow SH15T](https://comparepv.com/compare-inverters/growatt-mid-15ktl3-xh/sungrow-sh15t) - 13 differences, the largest is european efficiency --- Source: https://comparepv.com/compare-inverters/goodwe-gw15k-et-20-et-g2/growatt-mid-15ktl3-xh Not in this file, on the page: a written summary generated on request.