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Hybrid inverter

Sigenergy SiegnStor EC 4.6 SP

The Sigenergy SiegnStor EC 4.6 SP is a hybrid inverter from Sigenergy. Rated AC output 5 kW. Listed and verified: VDE-AR-N 4105. Sold in Germany.

Specifications

Rated AC output
5 kW

What the Sigenergy SiegnStor EC 4.6 SP 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 5 kW of AC output, the Sigenergy SiegnStor EC 4.6 SP suits an array of about 5–6.5 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 4,500 kWh a year, assuming a conservative 900 kWh per kWp: worth €347 a year fed into the grid at 7.70 ct per kWh, and up to €1,665 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
Sigenergy · China
Category
Home Solar & Hybrid Inverters
Sold in
Germany
Listed in
ZEREZ (FGW, Germany)

Models (1)

Model AC output
SiegnStor EC 4.6 SP 5 kW

Certifications

CertificationMarketStatusReferenceValid until
VDE-AR-N 4105 Germany ✓ Verified 20 October 2026 No. ESY 121007 0006 Rev. 00

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