E-star HERF
The E-star HERF is a microinverter range from E-star with 12 models. Rated AC output 600 W – 1.8 kW. Listed and verified: VDE-AR-N 4105. Sold in Germany.
Specifications
- Rated AC output
- 600 W – 1.8 kW
- Models in this range
- 12
What the E-star HERF does
A microinverter sits behind one to four panels and converts their output on the roof, so shade or a fault on one panel does not pull down the rest of the array. The E-star HERF range spans 600 W to 1.8 kW of AC output, suiting arrays of about 0.6–0.8 kWp at the small end and 1.8–2.3 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 540 to 1,620 kWh a year, assuming a conservative 900 kWh per kWp. For the smallest model, that is worth €42 a year fed into the grid at 7.70 ct per kWh, and up to €200 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
- Microinverter
- Brand
- E-star · China
- Category
- Home Solar & Hybrid Inverters
- Sold in
- Germany
- Listed in
- ZEREZ (FGW, Germany)
Models (12)
| Model | AC output |
|---|---|
| HERF-600 | 0.6 kW |
| HERF-600N | 0.6 kW |
| HERF-600NW | 0.6 kW |
| HERF-800 | 0.8 kW |
| HERF-800N | 0.8 kW |
| HERF-800NW | 0.8 kW |
| HERF-1000 | 1 kW |
| HERF-1000N | 1 kW |
| HERF-1000NW | 1 kW |
| HERF-1200 | 1.2 kW |
| HERF-1600 | 1.6 kW |
| HERF-1800 | 1.8 kW |
Certifications
| Certification | Market | Status | Reference | Valid until |
|---|---|---|---|---|
| VDE-AR-N 4105 | Germany | ✓ Verified 20 October 2026 | U22-0722,U22-0723, U22-0748_1,U22-0749, U24-1195,U24-1196 |