KSTAR E10KT
The KSTAR E10KT is a hybrid inverter range from KSTAR with 6 models. Rated AC output 4 kW – 12 kW. Listed and verified: VDE-AR-N 4105. Sold in Germany.
Specifications
- Rated AC output
- 4 kW – 12 kW
- Models in this range
- 6
What the KSTAR E10KT does
A hybrid inverter runs both the solar array and a home battery: it supplies the home from the panels first, stores the surplus and draws on the battery when the sun goes down. The KSTAR E10KT range spans 4 kW to 12 kW of AC output, suiting arrays of about 4–5.2 kWp at the small end and 12–15.6 kWp at the large end, as installers commonly size the panels up to 30% above the inverter's rating.
In Germany, arrays of the same size produce about 3,600 to 10,800 kWh a year, assuming a conservative 900 kWh per kWp. For the smallest model, that is worth €277 a year fed into the grid at 7.70 ct per kWh, and up to €1,332 used at home instead of buying power at 37.0 ct.
Estimates. Electricity prices: BDEW Strompreisanalyse, autumn 2026; Bundesnetzagentur, EEG feed-in tariffs from 1 August 2026.
Product details
- Product type
- Hybrid inverter
- Brand
- KSTAR · China
- Category
- Home Solar & Hybrid Inverters
- Sold in
- Germany
- Listed in
- ZEREZ (FGW, Germany)
Models (6)
| Model | AC output |
|---|---|
| E4KT | 4 kW |
| E5KT | 5 kW |
| E6KT | 6 kW |
| E8KT | 8.1 kW |
| E10KT | 10 kW |
| E12KT | 12 kW |
Certifications
| Certification | Market | Status | Reference | Valid until |
|---|---|---|---|---|
| VDE-AR-N 4105 | Germany | ✓ Verified 20 October 2026 | ESY 0753860196 |