Deye SUN-50K-SG01HP3-EU-BM4 — 50,000 W Three-Phase Hybrid, 160–800 V High-Voltage Battery, 4 MPPT

The Deye SUN-50K-SG01HP3-EU-BM4 is a 50,000 W three-phase hybrid inverter built around high-voltage lithium batteries in the 160–800 V range — a machine for building-scale projects that need both a lower electricity bill and real backup power. It is one of the units our engineers specify when designing systems for hotels, small factories and multi-villa developments sharing a single meter. This page explains what the spec sheet means once the equipment is on a Phuket wall. If you are still working out project scale, start with the calculator and review the equipment we design around.

What is the SUN-50K-SG01HP3-EU-BM4, and why a high-voltage battery?

The SUN-50K-SG01HP3-EU-BM4 sits in Deye's high-voltage hybrid family, accepting lithium-ion banks from 160–800 V across two separate battery inputs — a different architecture from the low-voltage hybrids used on houses. The engineering reason is simple: at the same power level, a higher-voltage battery moves less current, so cables are smaller, cable losses and terminal heating drop, and the switchgear layout gets far more manageable. That matters a great deal at 50,000 W. On the DC side there are four MPPT trackers taking two strings each (2+2+2+2) with a wide 150–850 V tracking window, which lets us group panels by building or roof orientation and keep a shaded group from dragging down the rest. Maximum PV input is 100,000 W against a rated PV figure of 80,000 W, so on a site with plenty of roof area we can oversize the array substantially and chase annual yield rather than midday peak. One practical planning point: the unit weighs 80 kg in a 527×894×294 mm cabinet, so wall structure, cooling clearance and lifting manpower all belong in the design phase. Read more about system types in hybrid with battery backup.

Highlights from the datasheet

• Four MPPTs, 2+2+2+2 strings: a wide 150–850 V tracking window and 1,000 V maximum PV input let you run four independent panel groups — ideal for resorts with production spread across several roofs.
• Up to 100,000 W of panels: against 50,000 W of AC output and an 80,000 W rated PV figure, giving real room to oversize the array and lift annual production rather than just midday peak.
• High-voltage battery, two inputs: 160–800 V lithium-ion with 50+50 A charge and discharge means smaller battery cabling and lower conduction losses than a low-voltage bank pushing the same power.
• Peak power of 1.5× rated for 10 seconds off-grid: headroom for lift motors, pumps and chiller compressors starting while the site runs on stored energy.
• 97.60% peak and 97.0% Euro efficiency: with MPPT tracking above 99% — the figures that shape a full year of production, not a single sunny afternoon.
• IP65, -40 to +60°C operating range: suitable for outdoor mounting, but with derating above 45°C, so placement and ventilation are engineering decisions in a tropical climate.
• AC coupling and generator charging: it can be added alongside an existing solar array and can store energy from a diesel generator — the setup most Phuket hotels already have on site.

Key specifications (SUN-50K-SG01HP3-EU-BM4)

Note: every figure above comes straight from the Ningbo Deye Inverter Technology Co., Ltd. datasheet. Actual system design (strings per MPPT, cable sizing, breakers) must be calculated for each site.

Why this model suits Phuket

• Hotel loads that cannot stop: guest rooms, kitchens, lifts and refrigeration run around the clock, and a 50,000 W hybrid with storage keeps critical circuits alive through monsoon-season grid interruptions.
• Coastal salt and humidity: the IP65 rating supports outdoor installation, but on seafront sites we still choose ventilated positions shielded from direct salt spray.
• Heat build-up in plant rooms: the datasheet notes derating above 45°C, a temperature a closed Phuket electrical room reaches easily, so we calculate ventilation as part of the system design.
• Sites with an existing diesel genset: most hotels and resorts already run backup generators, and this model supports charging from a diesel generator so both systems can be planned to work together.

Who it suits

• Mid-sized hotels and resorts: properties that want daytime bill reduction and backup for critical circuits from a single inverter platform.
• Multi-villa developments on one meter: projects supplying several buildings from a single connection benefit from four MPPTs tracking each roof independently.
• Small factories and warehouses: large roof areas where oversizing the array against inverter capacity pays off across the full year.
• Commercial buildings where outages cost money: cold rooms, servers or production lines that lose value when they stop justify storage rather than a plain grid-tied system.
• Phased projects: multiple units can be paralleled, so a first phase can be extended later without replacing the original inverter.

Summary

The Deye SUN-50K-SG01HP3-EU-BM4 suits Phuket commercial projects that need both savings and genuine backup: 50,000 W of output, up to 100,000 W of panels across four MPPTs, and a 160–800 V high-voltage battery that keeps cable losses down at this scale. Pearl Solar Energy's engineers and technicians cover design, installation and PEA permits end to end. See our services, review the solar cost in Phuket page, or contact us with twelve months of electricity bills for a proper site assessment.

See other models from this brand on the Deye overview, or browse all the equipment we install.

Download the datasheet (PDF) — full manufacturer specification sheet