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KOSTAL PLENTICORE G3 20 vs SMA Sunny Tripower X 25

AC power: KOSTAL PLENTICORE G3 20 20 kW, SMA Sunny Tripower X 25 25 kW. The KOSTAL PLENTICORE G3 20 is better on 6 of 11 comparable points.

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Who wins where

  • KOSTAL PLENTICORE G3 20
  • SMA Sunny Tripower X 25
PerformanceEfficiencyNoiseElectricalConnectivity & smartDimensions & weightWarranty & lifespan

Biggest differences

FactPLENTICORE G3 20Sunny Tripower X 25
Warranty10 years5 years
MPPT voltage min.227 V430 V
Noise39 dB(A)59 dB(A)
Weight24.3 kg35 kg
AC power20 kW25 kW
MPPT voltage max.800 V1,000 V
All specifications ↓

Score per area = position (0–100) relative to all 263 models in this category; higher is better.

KOSTALPLENTICORE G3 20SMASunny Tripower X 25
Performance
AC power20 kW125 kW✓2
Max. PV array power30 kWp1–
MPP trackers3132
Efficiency
Max. efficiency98.21 %✓198.2 %2
European efficiency97.72 %198 %✓2
Noise
Noise39 dB(A)✓159 dB(A)2
Electrical
MPPT voltage min.227 V✓1430 V2
MPPT voltage max.800 V11,000 V✓2
Max. input current per MPPT30 A✓124 A2
Phases3132
Connectivity & smart
Hybrid (battery-ready)Yes1–
Backup powerYes1–
Wi-Fi / monitoringYes1Yes2
Dimensions & weight
IP rating–IP652
Width409 mm1728 mm2
Height561 mm1762 mm2
Depth237 mm1266 mm2
Weight24.3 kg✓135 kg2
Warranty & lifespan
Warranty10 years✓15 years2

Frequently asked questions

Which is better: the KOSTAL PLENTICORE G3 20 or the SMA Sunny Tripower X 25?

AC power: KOSTAL PLENTICORE G3 20 20 kW, SMA Sunny Tripower X 25 25 kW. The KOSTAL PLENTICORE G3 20 is better on 6 of 11 comparable points.

What is the AC power of the KOSTAL PLENTICORE G3 20 and the SMA Sunny Tripower X 25?

KOSTAL PLENTICORE G3 20: 20 kW. SMA Sunny Tripower X 25: 25 kW.

Which is better on warranty: the KOSTAL PLENTICORE G3 20 or the SMA Sunny Tripower X 25?

KOSTAL PLENTICORE G3 20: 10 years. SMA Sunny Tripower X 25: 5 years.

Which is better on MPPT voltage min.: the KOSTAL PLENTICORE G3 20 or the SMA Sunny Tripower X 25?

KOSTAL PLENTICORE G3 20: 227 V. SMA Sunny Tripower X 25: 430 V.

How we collect and check this data →

Sources

  1. PLENTICORE Hybrid inverter - G3 4.0-20 kW, 09 / 2025 — KOSTAL Industrie Elektrik GmbH · accessed Sep 29, 2026
  2. Sunny Tripower X 12 / 15 / 20 / 25, 02/2025 — SMA Solar Technology AG · accessed Oct 17, 2026