Fronius Primo 4.0-1 vs GoodWe GW4000-SDT-30
AC power: Fronius Primo 4.0-1 4 kW, GoodWe GW4000-SDT-30 4 kW. The GoodWe GW4000-SDT-30 is better on 5 of 9 comparable points.
Who wins where
- Fronius Primo 4.0-1
- GoodWe GW4000-SDT-30
Biggest differences
| Fact | Primo 4.0-1 | GW4000-SDT-30 |
|---|---|---|
| Max. input current per MPPT | 12 A | 22 A |
| MPPT voltage min. | 80 V | 140 V |
| Weight | 21.5 kg | 14.7 kg |
| MPPT voltage max. | 800 V | 1,000 V |
Score per area = position (0–100) relative to all 238 models in this category; higher is better.
| Technical specifications | FroniusPrimo 4.0-1 | GoodWeGW4000-SDT-30 |
|---|---|---|
| Performance | ||
| AC power | 4 kW 1 | 4 kW 2 |
| MPP trackers | 2 1 | 2 2 |
| Efficiency | ||
| Max. efficiency | 98.1 % 1 | 98.4 % ✓ 2 |
| European efficiency | 97 % 1 | 98 % ✓ 2 |
| Electrical | ||
| MPPT voltage min. | 80 V ✓ 1 | 140 V 2 |
| MPPT voltage max. | 800 V 1 | 1,000 V ✓ 2 |
| Max. input current per MPPT | 12 A 1 | 22 A ✓ 2 |
| Phases | – | 3 2 |
| Connectivity & smart | ||
| Wi-Fi / monitoring | Yes 1 | Yes 2 |
| Dimensions & weight | ||
| IP rating | – | IP66 2 |
| Width | 431 mm 1 | 491 mm 2 |
| Height | 645 mm 1 | 392 mm 2 |
| Depth | 204 mm 1 | 210 mm 2 |
| Weight | 21.5 kg 1 | 14.7 kg ✓ 2 |
Sources
- FRONIUS PRIMO, v19 Dec 2022 — Fronius · accessed 2 Oct 2026
- SDT G3 Series 4–20 kW string inverter (EMEA) – datasheet, EN-EMEA V2.1 (20250707) — GoodWe Technologies Co., Ltd. · accessed 27 Sept 2026