Solar inverters · Compare

Fronius Primo GEN24 6.0 vs SMA Sunny Boy 6.0

AC power: Fronius Primo GEN24 6.0 6 kW, SMA Sunny Boy 6.0 6 kW. The Fronius Primo GEN24 6.0 is better on 4 of 11 comparable points.

Who wins where

  • Fronius Primo GEN24 6.0
  • SMA Sunny Boy 6.0
PerformanceEfficiencyNoiseElectricalConnectivity & smartDimensions & weight
Performance: Fronius Primo GEN24 6.0 52, SMA Sunny Boy 6.0 52; Efficiency: Fronius Primo GEN24 6.0 31, SMA Sunny Boy 6.0 8; Noise: Fronius Primo GEN24 6.0 27, SMA Sunny Boy 6.0 88; Electrical: Fronius Primo GEN24 6.0 31, SMA Sunny Boy 6.0 17; Connectivity & smart: Fronius Primo GEN24 6.0 50, SMA Sunny Boy 6.0 50; Dimensions & weight: Fronius Primo GEN24 6.0 79, SMA Sunny Boy 6.0 56

Biggest differences

FactPrimo GEN24 6.0Sunny Boy 6.0
Noise42 dB(A)25 dB(A)
Max. input current per MPPT22 A15 A
Weight15.4 kg17.5 kg
MPPT voltage min.230 V210 V
MPPT voltage max.480 V500 V
All specifications ↓

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

Technical specifications FroniusPrimo GEN24 6.0 SMASunny Boy 6.0
Performance
AC power 6 kW 1 6 kW 2
Max. PV array power 9 kWp 3 9 kWp 2
MPP trackers 2 3 2 2
Efficiency
Max. efficiency 97.6 % ✓ 3 97 % 2
European efficiency 97.1 % ✓ 3 96.6 % 2
Noise
Noise 42 dB(A) 3 25 dB(A) ✓ 2
Electrical
MPPT voltage min. 230 V 3 210 V ✓ 2
MPPT voltage max. 480 V 3 500 V ✓ 2
Max. input current per MPPT 22 A ✓ 3 15 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 IP65 2
Width 474 mm 3 435 mm 2
Height 530 mm 3 470 mm 2
Depth 165 mm 3 176 mm 2
Weight 15.4 kg ✓ 3 17.5 kg 2
Warranty & lifespan
Warranty – 5 years 2

Sources

  1. ENA Type Test Register (inverters) — Energy Networks Association (ENA) · accessed 27 Sept 2026
  2. Sunny Boy 3.0 / 3.6 / 4.0 / 5.0 / 6.0 – datasheet, SB30-60-DS-en-61 (status 10/2023) — SMA Solar Technology AG · accessed 27 Sept 2026
  3. Fronius Primo GEN24 & GEN24 Plus 3.0 - 6.0 kW – datasheet, EN V04 (June 2025) — Fronius International GmbH · accessed 27 Sept 2026