KOSTAL solar inverters
All 8 models from KOSTAL in our database, with the key figures side by side. Every value comes from an official register or the manufacturer; the source is on the product page.
At a glance
- AC power
- 4 to 20 kW
- Max. PV array power
- 6 to 30 kWp
- MPP trackers
- 3
- European efficiency
- 97.2 to 97.72 %
- Max. efficiency
- 98.03 to 98.21 %
- Phases
- 3
- MPPT voltage max.
- 800 V
This is an overview by data, not a test or recommendation. Models from other brands with the same technology are in the comparisons and on the category page.
All models
| Model | AC power1 | MPP trackers1 | European efficiency1 | Hybrid (battery-ready)1 |
|---|---|---|---|---|
| PLENTICORE G3 20 | 20 kW | 3 | 97.72 % | Yes |
| PLENTICORE G3 17.5 | 17.5 kW | 3 | 97.72 % | Yes |
| PLENTICORE G3 15 | 15 kW | 3 | 97.72 % | Yes |
| PLENTICORE G3 10 | 10 kW | 3 | 97.49 % | Yes |
| PLENTICORE G3 8.5 | 8.5 kW | 3 | 97.49 % | Yes |
| PLENTICORE G3 7.0 | 7 kW | 3 | 97.2 % | Yes |
| PLENTICORE G3 5.5 | 5.5 kW | 3 | 97.2 % | Yes |
| PLENTICORE G3 4.0 | 4 kW | 3 | 97.2 % | Yes |
Comparisons with KOSTAL
- FroniusSymo GEN24 10.0 PlusvsKOSTALPLENTICORE G3 10
- KOSTALPLENTICORE G3 10vsSMASunny Tripower Smart Energy 10.0
- KOSTALPLENTICORE G3 10vsSungrowSH10RT
- HuaweiSUN2000-10K-MAP0vsKOSTALPLENTICORE G3 10
- KOSTALPLENTICORE G3 4.0vsSMASunny Boy Smart Energy 4.0
- KOSTALPLENTICORE G3 8.5vsSMASunny Tripower Smart Energy 8.0
- KOSTALPLENTICORE G3 5.5vsSMASunny Boy Smart Energy 5.0
- KOSTALPLENTICORE G3 7.0vsSMASunny Boy Smart Energy 6.0
- FoxESSH3-15.0-SmartvsKOSTALPLENTICORE G3 15
- FoxESSH3-15.0-SmartvsKOSTALPLENTICORE G3 17.5
- FoxESSH3-15.0-SmartvsKOSTALPLENTICORE G3 20
- DeyeSUN-7K-SG05LP1-EUvsKOSTALPLENTICORE G3 7.0
Lists featuring KOSTAL
Other brands
Sources
- PLENTICORE Hybrid inverter - G3 4.0-20 kW, 09 / 2025 — KOSTAL Industrie Elektrik GmbH · accessed Sep 29, 2026