Product Overview
The Deye SUN-18K-SG01LP1-EU-AM3-P is an 18 kW single-phase hybrid inverter for solar systems that combine PV generation, battery storage and grid supply. It offers three MPPT trackers, high PV input capacity, 40-60 V battery support and configurable battery charging and discharging periods for larger residential, small commercial and backup-power installations.
Key Features
- 18 kW rated AC input/output active power with a maximum apparent power rating of 19.8 kVA.
- Three MPPT trackers with a 150-425 V MPPT operating range for flexible PV array design.
- Supports lead-acid or lithium-ion batteries with a 40-60 V battery voltage range.
- Up to 380 A maximum battery charging and discharging current.
- Colour touch LCD and IP65 enclosure rating.
- Maximum efficiency of 97.6% and MPPT efficiency above 99%.
- Supports up to six configurable battery charging and discharging time periods.
- The supplied datasheet indicates AC-coupling capability for retrofit solar-system applications.
Applications
- Hybrid solar systems requiring PV, battery and grid integration.
- High-demand residential and small commercial energy-storage systems.
- Retrofit solar installations where an AC-coupled design is appropriate.
- Backup and off-grid system designs, subject to correct battery, PV and protection sizing.
- Parallel inverter configurations, with the datasheet indicating support for up to 16 units.
Why Choose This Product?
This 18 kW hybrid inverter combines substantial solar-input capacity with high battery current capability, three MPPT trackers and scheduled battery operation. Its single-phase L+N+PE connection, integrated protection functions and optional monitoring interfaces make it a practical option for professionally designed solar and energy-storage systems.
Important Notes
- Installation, grid connection, PV string design and protection settings must be completed by a qualified electrician or solar installer.
- Confirm battery BMS compatibility, battery current capability and communication requirements before specifying a lithium-ion battery bank.
- AC coupling, generator charging, parallel inverter operation and parallel battery configurations require system-specific design and supplier confirmation.
- The datasheet lists optional AFCI protection and optional monitoring methods; confirm the supplied configuration before purchase.
- The datasheet lists a 5-year/10-year warranty, with the applicable term dependent on the final installation site. Confirm warranty terms before publishing or purchase.
Technical Specifications
| Specification |
Detail |
| Brand |
Deye |
| Model |
SUN-18K-SG01LP1-EU-AM3-P |
| Product Type |
Single-phase hybrid inverter |
| Rated AC Input/Output Active Power |
18,000 W |
| Maximum AC Input/Output Apparent Power |
19,800 VA |
| Rated AC Input/Output Current |
81.9 / 78.3 A |
| Maximum AC Input/Output Current |
90 / 86.1 A |
| Maximum Continuous AC Pass-through Current |
200 A |
| Off-grid Peak Power |
2 x rated power for 10 seconds |
| Rated AC Voltage / Range |
220/230 V; 0.85Un-1.1Un |
| Grid Frequency / Range |
50 Hz: 45-55 Hz; 60 Hz: 55-65 Hz |
| Grid Connection Form |
L+N+PE |
| Battery Type |
Lead-acid or lithium-ion |
| Battery Voltage Range |
40-60 V |
| Maximum Charging Current |
380 A |
| Maximum Discharging Current |
380 A |
| Lithium-ion Charging Strategy |
Self-adaption to BMS |
| Number of Battery Inputs |
2 |
| Maximum PV Access Power |
36,000 W |
| Maximum PV Input Power |
28,800 W |
| Maximum PV Input Voltage |
500 V |
| PV Start-up Voltage |
125 V |
| MPPT Voltage Range |
150-425 V |
| Rated PV Input Voltage |
370 V |
| Maximum Operating PV Input Current |
36 A + 36 A + 36 A |
| Maximum PV Short-circuit Current |
54 A + 54 A + 54 A |
| MPPT Trackers / Strings per Tracker |
3 / 2+2+2 |
| Maximum Efficiency |
97.6% |
| Euro Efficiency |
96.5% |
| MPPT Efficiency |
>99% |
| Surge Protection Level |
Type II (DC), Type II (AC) |
| Communication Interface |
RS485 / RS232 / CAN |
| Monitoring Options |
GPRS / WiFi / Bluetooth / 4G / LAN (optional) |
| Operating Temperature Range |
-40 to +60°C; derating above 45°C |
| Permissible Ambient Humidity |
0-100% |
| Permissible Altitude |
3,000 m |
| Noise |
<55 dB |
| IP Rating |
IP65 |
| Inverter Topology |
Non-isolated |
| Over-voltage Category |
OVC II (DC), OVC III (AC) |
| Dimensions (W x H x D) |
464 x 863 x 282 mm, excluding connectors and brackets |
| Weight |
59.8 kg |
| Cooling Method |
Intelligent air cooling |
| Warranty |
5 years / 10 years; dependent on final installation site according to the supplied datasheet |
