Solar inverters · Compare

Fronius Primo GEN24 4.0 Plus vs GoodWe GW4000-SDT-30

AC power: Fronius Primo GEN24 4.0 Plus 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 GEN24 4.0 Plus
  • GoodWe GW4000-SDT-30
PerformanceEfficiencyElectricalConnectivity & smartDimensions & weight
Performance: Fronius Primo GEN24 4.0 Plus 39, GoodWe GW4000-SDT-30 39; Efficiency: Fronius Primo GEN24 4.0 Plus 31, GoodWe GW4000-SDT-30 90; Electrical: Fronius Primo GEN24 4.0 Plus 36, GoodWe GW4000-SDT-30 72; Connectivity & smart: Fronius Primo GEN24 4.0 Plus 50, GoodWe GW4000-SDT-30 50; Dimensions & weight: Fronius Primo GEN24 4.0 Plus 79, GoodWe GW4000-SDT-30 82

Biggest differences

FactPrimo GEN24 4.0 PlusGW4000-SDT-30
MPPT voltage max.530 V1,000 V
MPPT voltage min.210 V140 V
Weight15.4 kg14.7 kg
All specifications ↓

Score per area = position (0–100) relative to all 238 models in this category; higher is better.

Technical specifications FroniusPrimo GEN24 4.0 Plus GoodWeGW4000-SDT-30
Performance
AC power 4 kW 1 4 kW 2
Max. PV array power 6 kWp 1 –
MPP trackers 2 1 2 2
Efficiency
Max. efficiency 97.6 % 1 98.4 % ✓ 2
European efficiency 97.1 % 1 98 % ✓ 2
Noise
Noise 42 dB(A) 1 –
Electrical
MPPT voltage min. 210 V 1 140 V ✓ 2
MPPT voltage max. 530 V 1 1,000 V ✓ 2
Max. input current per MPPT 22 A 1 22 A 2
Phases 1 1 3 2
Connectivity & smart
Hybrid (battery-ready) Yes 1 –
Backup power Yes 1 –
Wi-Fi / monitoring Yes 1 Yes 2
Dimensions & weight
IP rating IP66 1 IP66 2
Width 474 mm 1 491 mm 2
Height 530 mm 1 392 mm 2
Depth 165 mm 1 210 mm 2
Weight 15.4 kg 1 14.7 kg ✓ 2

Sources

  1. Fronius Primo GEN24 & GEN24 Plus 3.0 - 6.0 kW – datasheet, EN V04 (June 2025) — Fronius International GmbH · accessed 27 Sept 2026
  2. SDT G3 Series 4–20 kW string inverter (EMEA) – datasheet, EN-EMEA V2.1 (20250707) — GoodWe Technologies Co., Ltd. · accessed 27 Sept 2026