M-TEC Energy Butler
The M-TEC Energy Butler is a hybrid inverter range from M-TEC with 9 models. Rated AC output 5.1 kW – 20.1 kW. Listed and verified: VDE-AR-N 4105. Sold in Germany.
Specifications
- Rated AC output
- 5.1 kW – 20.1 kW
- Models in this range
- 9
What the M-TEC Energy Butler 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 M-TEC Energy Butler range spans 5.1 kW to 20.1 kW of AC output, suiting arrays of about 5.1–6.6 kWp at the small end and 20.1–26.1 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 4,590 to 18,090 kWh a year, assuming a conservative 900 kWh per kWp. For the smallest model, that is worth €353 a year fed into the grid at 7.70 ct per kWh, and up to €1,698 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 (9)
| Model | AC output |
|---|---|
| Energy Butler 5kW-3P-3G25 | 5.1 kW |
| Energy Butler 6kW-3P-3G25 | 6.1 kW |
| Energy Butler 8kW-3P-3G25 | 8 kW |
| Energy Butler 10kW-3P-3G25 | 10.1 kW |
| Energy Butler 10kW-3P-3G40 | 10.1 kW |
| Energy Butler 12kW-3P-3G25 | 12.1 kW |
| Energy Butler 12kW-3P-3G40 | 12.1 kW |
| Energy Butler 15kW-3P-3G40 | 15.1 kW |
| Energy Butler 20kW-3P-3G40 | 20.1 kW |
Certifications
| Certification | Market | Status | Reference | Valid until |
|---|---|---|---|---|
| VDE-AR-N 4105 | Germany | ✓ Verified 20 October 2026 | 22-307-00, 22-308-00 |