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Deye SUN-15K-G03 — is a high-efficiency, next-generation three-phase string inverter designed for small and medium-sized commercial solar power plants, private rooftop solar systems, and microgrids with Smart Grid functionality. It combines advanced energy conversion technologies, reliable electronics, and a wide range of safety features, ensuring stable operation even in harsh climatic conditions. With an efficiency of up to 98.5% and a precise MPPT algorithm, the inverter maximizes the conversion of solar energy into usable electricity, minimizing losses in the DC–AC circuit.
The inverter features two independent MPP trackers and supports connection to up to four strings of solar panels (two per MPPT). This architecture ensures optimal power generation even when arrays are oriented at different angles or partially shaded. This solution is designed to meet the requirements of modern solar power plants—from private households to small business facilities and commercial rooftop systems—where reliability, efficiency, and ease of maintenance are key.
Key Benefits
- High efficiency—up to 98.5%, European efficiency—97.5%. High efficiency reduces energy losses and increases project profitability.
- 2 MPPT trackers with a wide input voltage range (200–850 V), providing flexibility in panel selection and array configuration.
- Zero Export and VSG — support for limiting energy export to the grid and virtual generator mode for operation in microgrids.
- Anti-PID (optional) — protection of modules against potential induced degradation, extending the service life of the panels.
- Intelligent string monitoring (optional) — monitoring of each string for rapid fault detection and performance optimization.
- Wide output voltage range — adapts to various grid standards (220 / 380 V, 230 / 400 V).
- Smart Cooling — ensures stable component temperatures, low noise levels (< 45 dB), and extends the device’s service life.
- Protection against all typical faults: short circuit, overvoltage, overload, current leakage, insulation defects, and off-grid operation (Anti-Islanding).
- IP65 protection rating — sealed enclosure, suitable for outdoor installation, dust- and moisture-proof.
- Guaranteed service life > 20 years, confirming the reliability and quality of the components.
Technical Specifications
- Model: SUN-15K-G03
- Maximum PV Power: 19.5 kW
- Maximum DC input voltage: 1000 V
- MPPT start-up / operating voltage: 250 V / 200 – 850 V
- Number of MPPT tracks / strings per MPPT: 2 / (1 + 2)
- Max. input current: 16.5 + 33 A
- Rated output power: 15 kW
- Maximum active power: 16.5 kW
- Rated AC output voltage: 220 / 380 V or 230 / 400 V (0.85–1.1 Un)
- Rated output current: 21.8 A / 23.9 A
- Mains frequency range: 47–52 Hz or 57–62 Hz (optional 50/60 Hz)
- Operating phases: three-phase (3L/N/PE)
- Power factor: 0.8 leading – 0.8 lagging
- Communication interfaces: RS485 / RS232 / Wi-Fi / LAN (optional Bluetooth)
- Display: 1602 LCD with status and error indication
- Dimensions (W×H×D): 330 × 430 × 193.5 mm
- Weight: 17 kg
- Protection class: IP65 – for outdoor installation
- Ambient humidity: 0–100% (non-condensing)
Design and operational features
The Deye SUN-15K-G03 is designed based on Deye’s many years of experience in power electronics. Its compact housing and low weight (only 17 kg) simplify installation and maintenance, while the built-in LCD display provides the operator with quick access to the inverter’s parameters. The inverter can operate in both standard grid mode and Smart Control modes with export limitation or generator simulation (VSG).
The high IP65 protection rating allows the device to be used outdoors without additional protective enclosures. The Smart Cooling system with adaptive fan control ensures optimal thermal conditions and quiet operation with a noise level below 45 dB. Thanks to Type II SPD protection on the DC and AC channels, the inverter remains resistant to impulse surges and electrostatic discharges.
Applications
- Residential and commercial solar power plants with three-phase connection (380 V).
- Small industrial power plants with high requirements for efficiency and monitoring.
- Microgrids with VSG mode or with limited energy export to the grid.
- Self-consumption systems in agribusiness, the hospitality, and office sectors.
Total Energo LLC is a supplier of Deye inverters in Ukraine. We will help you select the optimal configuration for your facility, perform Zero Export and VSG settings, and provide warranty and maintenance services.