--- title: "GoodWe GWT10K-SDT-30 (SDT G3 series) vs Sungrow SG10RT-20 - Inverter Comparison | ComparePV" description: "Compare GoodWe GWT10K-SDT-30 (SDT G3 series) vs Sungrow SG10RT-20 side by side: what actually differs, efficiency, MPP trackers, battery input and the full specification." source: "https://comparepv.com/compare-inverters/goodwe-gwt10k-sdt-30-sdt-g3-series/sungrow-sg10rt-20" updated: 2026-01-16 --- # GoodWe GWT10K-SDT-30 (SDT G3 series) vs Sungrow SG10RT-20 10 differences, and they point both ways The largest is max input current per tracker: 3.0 A more headroom. 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 GWT10K-SDT-30 (SDT G3 series)](https://comparepv.com/inverter/goodwe-gwt10k-sdt-30-sdt-g3-series) | [Sungrow SG10RT-20](https://comparepv.com/inverter/sungrow-sg10rt-20) | | Manufacturer | GoodWe | Sungrow | | Rated AC power | 10 kW | 10 kW | | Type | Grid-tie | Grid-tie | ## Where they differ Ranked by how much the difference matters, not by datasheet order. | Parameter | GWT10K-SDT-30 (SDT G3 series) | SG10RT-20 | Difference | | --- | --- | --- | --- | | Max input current per tracker | 22.0 A | 25.0 A | +3.0 A for SG10RT-20 | | Max AC power | 11.00 kW | 10.00 kW | 1.00 kW apart | | Weight | 14.7 kg | 17.0 kg | -2.3 kg for GWT10K-SDT-30 (SDT G3 series) | | Nominal AC voltage | 380 V | 400 V | 20 V apart | | Ingress protection | IP66 | IP65 | IP66 vs IP65 | | Weight per kW | 1.5 kg/kW | 1.7 kg/kW | -0.2 kg/kW for GWT10K-SDT-30 (SDT G3 series) | | MPPT voltage range | 140-1000 V | 160-1000 V | 140-1000 V vs 160-1000 V | | Start voltage | 160 V | 180 V | -20 V for GWT10K-SDT-30 (SDT G3 series) | | Dimensions | 392x491x204 mm | 480x370x195 mm | 392x491x204 mm vs 480x370x195 mm | | Cooling | natural | forced-air | natural vs forced-air | ## Every compared parameter | Parameter | GWT10K-SDT-30 (SDT G3 series) | SG10RT-20 | | --- | --- | --- | | Rated AC power | 10.00 kW | 10.00 kW | | Max AC power | 11.00 kW | 10.00 kW | | Grid connection | 3-phase | 3-phase | | Nominal AC voltage | 380 V | 400 V | | Max AC current | 16.7 A | 16.7 A | | Max PV power | - | - | | DC/AC ratio | - | - | | Max DC voltage | 1100 V | 1100 V | | MPPT voltage range | 140-1000 V | 160-1000 V | | Start voltage | 160 V | 180 V | | MPP trackers | 2 | 2 | | Strings per tracker | 1 | 1 | | Max input current per tracker | 22.0 A | 25.0 A | | European efficiency | - | 98.1 % | | Max efficiency | 98.6 % | 98.5 % | | CEC efficiency | - | - | | Battery input | - | - | | Battery voltage | - | - | | Max charge current | - | - | | Backup power | - | - | | Weight | 14.7 kg | 17.0 kg | | Weight per kW | 1.5 kg/kW | 1.7 kg/kW | | Dimensions | 392x491x204 mm | 480x370x195 mm | | Ingress protection | IP66 | IP65 | | Cooling | natural | forced-air | | Noise | 29 dB | - | | Max operating temperature | 60 °C | 60 °C | | Wi-Fi | - | - | | Ethernet | - | - | | Arc fault protection | Yes | - | | Integrated DC switch | Yes | Yes | | Warranty | - | - | ## Related comparisons - [GoodWe GWT10K-SDT-30 (SDT G3 series) vs Growatt MOD 10KTL3-X2(Pro)](https://comparepv.com/compare-inverters/goodwe-gwt10k-sdt-30-sdt-g3-series/growatt-mod-10ktl3-x2-pro) - 5 differences, the largest is max input current per tracker - [GoodWe GWT10K-SDT-30 (SDT G3 series) vs Growatt MOD 10KTL3-X](https://comparepv.com/compare-inverters/goodwe-gwt10k-sdt-30-sdt-g3-series/growatt-mod-10ktl3-x) - 6 differences, the largest is max input current per tracker - [GoodWe GWT10K-SDT-30 (SDT G3 series) vs Sungrow SG10KTL-M](https://comparepv.com/compare-inverters/goodwe-gwt10k-sdt-30-sdt-g3-series/sungrow-sg10ktl-m) - 9 differences, the largest is max input current per tracker - [Sungrow SG10RT-20 vs SOFAR 11KTLX-G3](https://comparepv.com/compare-inverters/sungrow-sg10rt-20/sofar-solar-sofar-11ktlx-g3) - 7 differences, the largest is max input current per tracker --- Source: https://comparepv.com/compare-inverters/goodwe-gwt10k-sdt-30-sdt-g3-series/sungrow-sg10rt-20 Not in this file, on the page: a written summary generated on request.