On-Grid Deye Three-phase Inverter SUN-110K-G03, 110kW

It is a high-power inverter for photovoltaic plants connected to the grid. Its role is simple to describe: it gathers the energy from a few hundred panels and turns it into the current used by the factory installation or delivered into the grid, with very small losses. It does not work with a battery and does not keep the supply during an outage, but is designed for continuous production and minimum operating expenses. The six independent inputs for panels allow a large roof to be divided into zones that do not influence one another.

The 110 kW of output power accept up to 150 kW of panels, that is a generous oversizing, which brings more energy in the morning, in the evening and in the cold months, even if during a few peak summer hours a part is lost. The panels are connected in 24 strings, four on each of the six inputs, with 40 A maximum current per input, so the design can be done finely, by roof zones. Production starts from 250 V, so the installation begins to work early. With 824 x 516 x 312,7 mm and 81 kg it is a piece of equipment that requires a solid structure and at least two people for installation; the IP65 enclosure resists dust and water jets, and the air cooling is intelligently controlled. At temperatures above 45 degrees C the delivered power decreases in a controlled way, so placement in the shade and with good air circulation matters for summer production.

Rated AC power 110 kW, maximum apparent power 121 kVA, output 220/380 V or 230/400 V (0,85-1,1 Un), 50 Hz (45-55) or 60 Hz (55-65), maximum AC current 183,3 A / 175,4 A, power factor adjustable from 0,8 capacitive to 0,8 inductive, THDi below 3%. PV input: maximum power 150 kW, maximum input voltage 1000 V, rated voltage 600 V, start-up from 250 V, MPPT range 200-850 V, 6 trackers with 4 strings each (24 strings in total) and 40 A maximum operating current on each MPPT. Maximum efficiency 98,80%, European efficiency 98,20%, non-isolated topology, intelligently controlled air cooling, IP65, 824 x 516 x 312,7 mm, 81 kg, operating temperature -25...+60 degrees C with derating above 45 degrees C, communication RS485 and RS232, standard warranty 5 years.

Who it suits

Suitable for industrial photovoltaic plants from approximately 110 kWp upwards, on large hall roofs or on the ground, where several identical units are installed.

Terms explained

• Derating: The automatic reduction of the delivered power when the device heats up too much; it protects the electronics, but it means that placement in the shade and good ventilation really do bring extra production.
• DC/AC ratio: The ratio between the power of the installed panels and the power of the inverter; above 1 means more panels than strictly necessary, which increases production in the hours and months with weak sun.
• Apparent power (kVA): The total power that the device can put on the cables, used for sizing the fuses, the cables and the connection.

Technical specifications

Recommended applications

• Industrial photovoltaic plants of 110-150 kWp per inverter
• Photovoltaic parks from hundreds of kW up to MW
• Large hall roofs, with many strings and different orientations
• Installations with DC/AC oversizing for winter yield

Warranty

5 years

Technical details

Specifications confirmed from the manufacturer's datasheet

Deye SUN-110K-G03 is a high-power three-phase string inverter, from the G03 series (70-110 kW), with a rated AC power of 110 kW and a maximum apparent power of 121 kVA. It is designed for commercial and industrial photovoltaic plants connected to the grid.

The DC side accepts up to 150 kW of PV power, a maximum voltage of 1000 V and a rated voltage of 600 V, with start-up from 250 V and MPPT tracking in the range 200-850 V. The 6 MPPT trackers have 4 strings each (24 strings in total) and a maximum operating current of 40 A on each MPPT, which allows generous sizing of the photovoltaic generator and DC/AC oversizing.

The AC output is 220/380 V or 230/400 V (0,85-1,1 Un), at 50 Hz (45-55) or 60 Hz (55-65), with a maximum current of 183,3 A / 175,4 A. The power factor is adjustable from 0,8 capacitive to 0,8 inductive, and the THDi is below 3%. The maximum efficiency is 98,80%, and the European one 98,20%.

The inverter has a non-isolated topology and intelligent air cooling, IP65 enclosure, dimensions of 824 x 516 x 312,7 mm and a mass of 81 kg. The operating range is -25...+60 degrees C, with derating above 45 degrees C. Communication is done through RS485 and RS232, and the standard warranty is 5 years.