Fronius Primo 3.6-1 vs GoodWe GW3600-ES-20
AC power: Fronius Primo 3.6-1 3.68 kW, GoodWe GW3600-ES-20 3.68 kW. Both models win equally often (3 of 9 points).
Who wins where
- Fronius Primo 3.6-1
- GoodWe GW3600-ES-20
Biggest differences
| Fact | Primo 3.6-1 | GW3600-ES-20 |
|---|---|---|
| MPPT voltage max. | 800 V | 550 V |
| MPPT voltage min. | 80 V | 60 V |
| Max. input current per MPPT | 12 A | 16 A |
| Weight | 21.5 kg | 20.8 kg |
Score per area = position (0–100) relative to all 238 models in this category; higher is better.
| Technical specifications | FroniusPrimo 3.6-1 | GoodWeGW3600-ES-20 |
|---|---|---|
| Performance | ||
| AC power | 3.68 kW 1 | 3.68 kW 2 |
| Max. PV array power | – | 5.4 kWp 2 |
| MPP trackers | 2 1 | 2 2 |
| Efficiency | ||
| Max. efficiency | 98 % ✓ 1 | 97.6 % 2 |
| European efficiency | 96.8 % ✓ 1 | 96.7 % 2 |
| Electrical | ||
| MPPT voltage min. | 80 V 1 | 60 V ✓ 2 |
| MPPT voltage max. | 800 V ✓ 1 | 550 V 2 |
| Max. input current per MPPT | 12 A 1 | 16 A ✓ 2 |
| Connectivity & smart | ||
| Hybrid (battery-ready) | – | Yes 2 |
| Backup power | – | Yes 2 |
| Wi-Fi / monitoring | Yes 1 | Yes 2 |
| Dimensions & weight | ||
| IP rating | – | IP65 2 |
| Width | 431 mm 1 | 505.9 mm 2 |
| Height | 645 mm 1 | 434.9 mm 2 |
| Depth | 204 mm 1 | 154.8 mm 2 |
| Weight | 21.5 kg 1 | 20.8 kg ✓ 2 |
Sources
- FRONIUS PRIMO, v19 Dec 2022 — Fronius · accessed 2 Oct 2026
- ES G2 Series 3-6kW Single Phase Hybrid inverter (LV), 20260430-EN-V2.1 — GoodWe · accessed 2 Oct 2026