Deye SUN-5K-SG03LP1-EU

This is the 5 kW version of the same family of single-phase hybrid inverters. A hybrid inverter converts the current from the panels into the 230 V current of the sockets, charges the battery with what is left and, when the grid is interrupted, switches to the battery so that the lights do not go out in the house. It is mounted on the wall, including outdoors, because it has an enclosure sealed against dust and splashes.

The power of 5000 W means that it can support at the same time the usual loads of a house - fridge, lighting, kitchen appliances, washing machine, computers - and remains fully available on the backup output as well, during a grid outage. On the solar side, modules totalling up to 6500 W can be connected, that is more power can be installed in panels than the inverter delivers, in order to recover in the morning, in the evening and on cloudy days. The battery is charged and discharged with up to 120 A, that is indicatively about 5.8 kW on a 48 V battery - in practice, the battery can be filled quickly during the good sun hours. At the start-up of a motor (pump, compressor, cutting machine) it can deliver twice the rated power for 10 seconds. The maximum efficiency is 97.60%, it cools without a fan, below 30 dB, and with 20.5 kg and 330x580x232 mm it is fixed on a load-bearing wall. It works between -40 and 60 °C, with power reduction above 45 °C, so it is better not to leave it in direct sun.

PV: 6500 W max, 2 MPPT with one string each, 13+13 A (Isc 17+17 A), Vmax 500 V, start-up 125 V, MPPT window 150-425 V (300-425 V at full load), nominal 370 V. AC: 5000 W rated including on the UPS output, 5500 W maximum, 22.7/21.7 A rated and 25/23.9 A maximum, 220/230 Vac, 50/60 Hz, L/N/PE, bypass 35 A, THD below 3% of the rated power, maximum efficiency 97.60% and European 96.50%, MPPT efficiency 99.90%. Lead-acid or lithium battery, 40-60 V, 120 A charge/discharge, 3-stage charging with equalisation, automatic adaptation to the BMS through RS485/CAN. IP65 enclosure, 330x580x232 mm, 20.5 kg, natural cooling below 30 dB, operation -40...60 °C with derating above 45 °C. Certifications: VDE-AR-N 4105, EN 50549-1, CEI 0-21, G98/G99, C10-11, UNE 217002, IEC 61727/62116, IEC/EN 62109-1/-2.

Who it suits

Suitable for an ordinary family house, with a photovoltaic field of up to about 6.5 kWp and a 48 V battery, which wants to use most of the energy produced by itself and to have power during a grid outage.

Terms explained

• Photovoltaic oversizing: Installing more power in panels than the inverter's power; it helps in the morning, in the evening and on cloudy days, when the panels do not give their maximum anyway.
• 3-stage charging with equalisation: A charging program that changes the current and the voltage as the battery fills up, in order to extend the life of the cells.
• BMS: The computer inside the battery which monitors its state; the inverter talks to it over a data cable and adjusts its charging and discharging by itself.

Technical specifications

Recommended applications

• Residential photovoltaic systems of 5 kW with 48 V storage
• Self-consumption with UPS backup for the critical circuits
• On-grid and off-grid hybrid systems, coupling with a diesel generator
• Parallel configurations up to 16 units

Warranty

5 years (according to the Deye datasheet)

Technical details

Specifications confirmed from the manufacturer's datasheet

Deye SUN-5K-SG03LP1-EU is the 5 kW version of the single-phase hybrid SG03LP1 series, with low-voltage batteries. It accepts up to 6500 W of photovoltaic DC power on 2 independent MPPT trackers, one string per MPPT, with 13+13 A input current and 17+17 A short-circuit current. The maximum PV voltage is 500 V, the start-up from 125 V, the MPPT range 150-425 V (300-425 V at full load) and the nominal PV voltage 370 V.

The alternating current output is 5000 W rated, including on the UPS/backup circuit, with 5500 W maximum power, 22.7/21.7 A rated current and 25/23.9 A maximum current, at 220/230 Vac, 50/60 Hz, L/N/PE. The direct grid-to-load pass-through withstands 35 A, and off-grid it delivers twice the rated power for 10 s. The maximum efficiency is 97.60%, the European one 96.50%, the MPPT efficiency 99.90%, and the THD below 3% of the rated power.

The battery can be lead-acid or lithium, 40-60 V, with 120 A maximum charge and discharge current, 3-stage charging with equalisation and self-adaptation to the BMS through RS485/CAN. The IP65 enclosure of 330x580x232 mm has 20.5 kg and natural cooling below 30 dB, working between -40 and 60 degrees C (derating above 45). Certifications: VDE-AR-N 4105, EN 50549-1, CEI 0-21, G98/G99, C10-11, UNE 217002, IEC 61727/62116, IEC/EN 62109-1/-2.