Biwatt PowerNest PNH-4- 05
The Biwatt PowerNest PNH-4- 05 is a solar inverter from Biwatt. Rated AC output 4 kW. Listed and verified: VDE-AR-N 4105. Sold in Germany.
Specifications
- Rated AC output
- 4 kW
What the Biwatt PowerNest PNH-4- 05 does
A solar string inverter turns the direct current from a rooftop array into grid-quality alternating current for the home, and feeds what the home does not use into the grid. With 4 kW of AC output, the Biwatt PowerNest PNH-4- 05 suits an array of about 4–5.2 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 3,600 kWh a year, assuming a conservative 900 kWh per kWp: 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
- Solar inverter
- Brand
- Biwatt · China
- Category
- Home Solar & Hybrid Inverters
- Sold in
- Germany
- Listed in
- ZEREZ (FGW, Germany)
Models (1)
| Model | AC output |
|---|---|
| PowerNest PNH-4- 05 | 4 kW |
Certifications
| Certification | Market | Status | Reference | Valid until |
|---|---|---|---|---|
| VDE-AR-N 4105 | Germany | ✓ Verified 20 October 2026 | CN-PVES-250375 |