Deye SUN-25K-G04 25 kW three-phase grid-tie inverter

The Deye SUN-25K-G04 is a three-phase grid-tie (string) solar inverter rated at 25 kW, with two MPP trackers (MPPT) and maximum efficiency of up to 98.3 %. It supports zero export and VSG, and suits solar plants where most electricity is used during the day.

Technical specifications

What is a 25 kW three-phase grid-tie inverter used for?

The Deye SUN-25K-G04 suits sites that use electricity during the day, while the solar plant is producing:

• production and workshops
• an office or a shop
• a farm

Generation and consumption coincide in time here. This is a grid-tie inverter, so in the evening power is drawn from the grid again.

What does zero export mean for a solar inverter?

Zero export limits the surplus electricity that the plant feeds into the grid. The SUN-25K-G04 has this function, along with 2 MPP trackers (MPPT). Smart monitoring and Anti-PID are offered as options.

Can a battery be connected to a grid-tie inverter?

No, a battery cannot be connected to the grid-tie inverter SUN-25K-G04. Storage needs a hybrid inverter or a separate storage inverter. ESO (Lithuanian grid operator) states:

“Part of the surplus electricity you generate can be stored in an energy storage system and used in the evening.”

ESO – Elektros energijos kaupikliai

If most of your electricity is used in the evening, it is worth comparing with a hybrid inverter.

EU directives and standards

The Deye EU declaration of conformity (2024-04-30) covers the SUN-25K-G04: the Low Voltage Directive 2014/35/EU, the EMC Directive 2014/30/EU and the RoHS Directive 2011/65/EU. The standards applied are EN 62109-1:2010 and EN 62109-2:2011.

We handle it for you. We select the equipment for your site, deliver anywhere in Lithuania, install and connect it.

Frequently asked questions

What is the rated power of the Deye SUN-25K-G04?

The rated power of the Deye SUN-25K-G04 is 25 kW. It is a three-phase grid-tie inverter.

How many MPPT inputs does the Deye SUN-25K-G04 have?

The Deye SUN-25K-G04 has 2 MPP trackers (MPPT).

What is the maximum efficiency of the Deye SUN-25K-G04?

The maximum efficiency of the Deye SUN-25K-G04 is up to 98.3 %.

Can the SUN-25K-G04 limit export to the grid?

Yes, the Deye SUN-25K-G04 supports zero export, so the surplus electricity fed into the grid can be limited.

Does the SUN-25K-G04 support VSG?

Yes, the Deye SUN-25K-G04 supports VSG (virtual synchronous generator) operation.

Can a battery be connected to the SUN-25K-G04?

No. The SUN-25K-G04 is a grid-tie inverter and a battery cannot be connected to it. Storage needs a hybrid inverter or a separate storage inverter.

What sites suit the 25 kW Deye SUN-25K-G04?

The 25 kW Deye SUN-25K-G04 suits sites that use electricity during the day: production, an office, a shop, or a farm.

Does the Deye SUN-25K-G04 have an EU declaration of conformity?

Yes, the Deye EU declaration of conformity (2024-04-30) covers the SUN-25K-G04 and lists directives 2014/35/EU, 2014/30/EU and 2011/65/EU.

Does Hybrid Energy install the SUN-25K-G04?

Yes, Hybrid Energy selects the equipment for your site, delivers anywhere in Lithuania, installs and connects the 25 kW Deye inverter.

When is a hybrid inverter a better choice than the SUN-25K-G04?

If most of your electricity is used in the evening, a hybrid inverter is worth considering, because a battery cannot be connected to the 25 kW SUN-25K-G04. Hybrid Energy can help you compare both options.