Deye SUN-8K-SG05LP1-EU-AM2-P8kW single-phase low-voltage hybrid inverter, 48V battery

Overview

SUN-8K-SG05LP1-EU-AM2-P supplies 8kW (8.8kVA maximum) on a single-phase 230V connection and handles up to 190A of battery charge and discharge current at 48V. Each of its two MPP trackers takes two strings at up to 32A and 500V, for a PV array of up to 16kW access power and 12.8kW input power. Grid-to-load pass-through is 50A; Deye recommends 50A breakers on the grid and backup ports and 70mm² battery cable. It suits larger single-phase homes and small businesses with low-voltage storage.

• 3.6–10kW single-phase, 48V battery (40–60V)
• 90–210A charge and discharge current
• 2 MPPT, 500V max., 150–425V MPPT range
• 2× rated power for 10s off-grid
• Up to 16 units in parallel, on- or off-grid
• 24.9kg, 330×580×232mm, IP65

How it works

The SG05LP1 series is Deye's compact single-phase hybrid inverter for 48V batteries, built in two versions: the original SG05LP1-EU and the current SG05LP1-EU-AM2-P. Both connect PV, a lead-acid or lithium-ion battery of 40–60V, the grid, backup loads and a generator. Battery current rises with size from 90A (3.6kW) to 210A (10kW), and with lithium batteries charging follows the BMS limits.

Two MPP trackers work up to 500V, with 125V start-up and a 150–425V tracking range. The 3.6–6kW sizes take one string per tracker and the 7–10kW sizes two; the AM2-P version accepts more current per tracker (18A or 32A) than the EU version (13A or 26A). Off-grid output reaches twice the rated power for 10 seconds, and grid-to-load pass-through is 35–50A depending on size.

Key features

Six time periods schedule charging and discharging, and the work modes Selling First, Zero Export to Load and Zero Export to CT handle export. The GEN port takes a diesel generator, drives a smart load or receives AC-coupled on-grid inverters, so an existing PV system can be kept. Up to 16 units can operate in parallel on-grid or off-grid, on one phase or as a three-phase system. A colour touch LCD gives access to all settings.

Installation and compatibility

The IP65 unit weighs 24.9kg and needs about 50cm free at the sides, above and below, and 100cm in front, at up to 2000m. For the AM2-P version Deye recommends 40A grid and backup breakers up to 6kW and 50A from 7kW, a 150A or 225A battery DC breaker and battery cables from 25mm² (3.6kW) to 95mm² (10kW). Export is measured by the supplied CT or a CHNT DDSU666 or Eastron SDM230 meter.

Parallel systems require the Zero Export to CT mode. Grid regulations listed in the datasheets are IEC 61727, IEC 62116, CEI 0-21, EN 50549, NRS 097, RD 140, UNE 217002, OVE-Richtlinie R25, G99 and VDE-AR-N 4105, plus G98 for the EU version. Deye's EU declaration of conformity covers both versions. Operating range is -40 to 60°C, with derating above 45°C.

Monitoring and settings

Wi-Fi, RS485 and CAN interfaces are provided; remote monitoring in Deye Cloud uses the optional Wi-Fi plug or data logger. Through the touch LCD the installer sets battery type and limits, time-of-use periods, work mode, grid standard and GEN port function. The AM2-P version is quieter at under 45dB (EU version under 50dB). Warranty for the AM2-P is 5 years, extendable to 10 years depending on the country.

Questions and answers