M-TEC Energy Butler 4kW-3G-3P25
The M-TEC Energy Butler 4kW-3G-3P25 is a hybrid inverter from M-TEC. Rated AC output 4.1 kW. Listed and verified: VDE-AR-N 4105. Sold in Germany.
Specifications
- Rated AC output
- 4.1 kW
What the M-TEC Energy Butler 4kW-3G-3P25 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. With 4.1 kW of AC output, the M-TEC Energy Butler 4kW-3G-3P25 suits an array of about 4.1–5.3 kWp, as installers commonly size the panels up to 30% above the inverter's rating.
In Germany, an array of the same size produces about 3,690 kWh a year, assuming a conservative 900 kWh per kWp: worth €284 a year fed into the grid at 7.70 ct per kWh, and up to €1,365 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
- M-TEC · Austria
- Category
- Home Solar & Hybrid Inverters
- Sold in
- Germany
- Listed in
- ZEREZ (FGW, Germany)
Models (1)
| Model | AC output |
|---|---|
| Energy Butler 4kW-3G-3P25 | 4.1 kW |
Certifications
| Certification | Market | Status | Reference | Valid until |
|---|---|---|---|---|
| VDE-AR-N 4105 | Germany | ✓ Verified 20 October 2026 | 22-307-00, 22-308-00 |