Fronius Primo GEN24 4.0 vs GoodWe GW4.2K-DNS-G40
AC power: Fronius Primo GEN24 4.0 4 kW, GoodWe GW4.2K-DNS-G40 4.2 kW. The GoodWe GW4.2K-DNS-G40 is better on 6 of 9 comparable points.
Who wins where
- Fronius Primo GEN24 4.0
- GoodWe GW4.2K-DNS-G40
Biggest differences
| Fact | Primo GEN24 4.0 | GW4.2K-DNS-G40 |
|---|---|---|
| MPPT voltage min. | 210 V | 40 V |
| Weight | 15.4 kg | 9.2 kg |
| Max. input current per MPPT | 22 A | 20 A |
| MPPT voltage max. | 530 V | 560 V |
| AC power | 4 kW | 4.2 kW |
Score per area = position (0–100) relative to all 238 models in this category; higher is better.
| Technical specifications | FroniusPrimo GEN24 4.0 | GoodWeGW4.2K-DNS-G40 |
|---|---|---|
| Performance | ||
| AC power | 4 kW 1 | 4.2 kW ✓ 2 |
| Max. PV array power | 6 kWp 3 | – |
| MPP trackers | 2 3 | 2 2 |
| Efficiency | ||
| Max. efficiency | 97.6 % 3 | 98.1 % ✓ 2 |
| European efficiency | 97.1 % 3 | 97.3 % ✓ 2 |
| Noise | ||
| Noise | 42 dB(A) 3 | – |
| Electrical | ||
| MPPT voltage min. | 210 V 3 | 40 V ✓ 2 |
| MPPT voltage max. | 530 V 3 | 560 V ✓ 2 |
| Max. input current per MPPT | 22 A ✓ 3 | 20 A 2 |
| Phases | 1 1 | 1 2 |
| Connectivity & smart | ||
| Hybrid (battery-ready) | No 1 | – |
| Backup power | Yes 3 | – |
| Wi-Fi / monitoring | Yes 3 | Yes 2 |
| Dimensions & weight | ||
| IP rating | IP66 3 | IP66 2 |
| Width | 474 mm 3 | 358 mm 2 |
| Height | 530 mm 3 | 323 mm 2 |
| Depth | 165 mm 3 | 165 mm 2 |
| Weight | 15.4 kg 3 | 9.2 kg ✓ 2 |
Sources
- ENA Type Test Register (inverters) — Energy Networks Association (ENA) · accessed 27 Sept 2026
- DNS G4 Series 3–6 kW string inverter (EMEA) – datasheet, EN-EMEA V1.1 (20250617) — GoodWe Technologies Co., Ltd. · accessed 27 Sept 2026
- Fronius Primo GEN24 & GEN24 Plus 3.0 - 6.0 kW – datasheet, EN V04 (June 2025) — Fronius International GmbH · accessed 27 Sept 2026