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GoodWe GW15K-ET-20 - 15 kW three-phase hybrid inverter

GoodWe GW15K-ET-20 - 15 kW three-phase hybrid inverter, зображення 2

GoodWe GW15K-ET-20 - 15 kW three-phase hybrid inverter, зображення 3

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80 703⁴⁴ ^₴

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Description GoodWe GW15K-ET-20

GoodWe GW15K-ET-20 three-phase hybrid inverter

A hybrid inverter is the brain of a modern solar power plant with storage, and the GoodWe GW15K-ET-20 performs this role without compromise. This is a three-phase 15 kW device from the ET G2 generation - an updated line designed for large private homes and the small commercial sector. In one housing, it combines work with solar panels, charging and discharging batteries, and automatic backup power when the mains voltage disappears. For Ukrainian realities with unstable supply, this is not a “nice option”, but a key reason to build a station specifically on a hybrid.

Technologies that make GW15K-ET-20 the smart heart of the station

Three independent MPPTs and 150% oversizing. The inverter has three separate maximum power trackers and allows you to connect solar arrays with a total power of up to 24 kW - that is, 150% more than the nominal. In practice, this gives two advantages. First, you can freely arrange the panels on roofs of different orientations and inclinations: the eastern, western and southern slopes will each work at their optimum, without "pulling" each other down. Second, the excess panels extract more energy in the morning, evening and on cloudy winter days when there is little sun - exactly when every kilowatt-hour is most valuable.

Backup power with switching in less than 10 milliseconds. This is probably the main reason why people buy a hybrid today. When the power goes out, the inverter switches the house to battery power so quickly that you don't notice it: the computer doesn't reboot, the boiler and heating pump don't go down, the router and alarm system continue to work. The GW15K-ET-20 supports black start - that is, it can start and power the house even when there is no network, and during the day it will recharge the battery from the sun. In backup mode, it produces up to 15 kVA, and briefly - up to 18 kVA, which is enough to start powerful consumers like a well pump.

100% asymmetrical output. A classic problem of three-phase houses: the metering is three-phase, and the most powerful consumers (boiler, stove, pump) “hang” on one phase. Many inverters in this case limit the return. GW15K-ET-20 is able to direct all available power to one phase, if necessary, and correctly balances consumption between phases - you use the station to its full potential, not a third of its capabilities.

Smart load management and peak smoothing. Through a dry contact, the inverter automatically turns on external devices - a heat pump, a boiler, an electric car charger - exactly when there is an excess of solar energy. And the peak smoothing function prevents the station from "breaking through" the permitted consumption limit from the grid, which is especially important for businesses with peak power tariffs.

High efficiency and support for high-voltage batteries. Efficiency up to 98.2% means that almost all the energy produced reaches the consumer, and not heats the air. The inverter works with high-voltage lithium batteries in the range of 150–720 V - both from GoodWe itself and from many third-party manufacturers, so the storage system is easy to choose for your budget and scale. If necessary, several inverters are combined in parallel, and the station grows with your needs.

Safety by default. Built-in AFCI 3.0 arc protection detects dangerous arcing in the DC circuit (one of the main causes of fires in solar systems) and de-energizes the area. Type II surge protection on the panel and grid sides protects the electronics from the effects of lightning. The IP66 housing allows for installation both indoors and outdoors - the inverter is not afraid of dust and moisture.

What real tasks does the inverter solve?

Technology is best revealed through the specific situations that a station owner faces. Here's what you get in practice:

Power outage. The house simply continues to operate. No blinking lights, no restarting equipment, no trips to the generator — the switch to backup and back is seamless.
Weak sun in the morning, evening and winter. Thanks to three MPPTs and a reserve of panel power, the station collects energy even in low light, so self-sufficiency extends for most of the day and year.
Phase imbalance in the house. A powerful single-phase consumer no longer limits your station: the inverter delivers as much as it needs, and where it needs to go.
Expensive electricity during peak hours and the desire to power a heat pump from the sun. Smart load management and peak smoothing turn excess generation into real savings, rather than energy sold to the grid for nothing.
Plans to expand. Oversizing and paralleling leave room for growth—you don't have to change the inverter when you want to add panels or batteries.

Operating experience

According to installation experience, the GW15K-ET-20 has a reputation for being a device that you simply forget about after starting it. Owners note the main thing: the transition to reserve is truly imperceptible, and does not “click” with a noticeable pause, as in cheaper solutions. The inverter operates quietly and does not attract attention with its hum even under load, and all control — generation, battery charge, consumption by phases — is available from a smartphone via the SEMS Portal application. This is a rare case when complex power electronics behaves predictably from day one and does not require constant supervision.

Guarantee and confidence in your choice

GoodWe is not a newcomer, but one of the world leaders in storage inverters: the brand was recognized as the largest supplier in its segment according to Wood Mackenzie. The basic warranty for the GW15K-ET-20 is 5 years with the possibility of extension to 10, 15 or 20 years - a rare level of support for the industry, which directly indicates the manufacturer's confidence in reliability. By purchasing an inverter from an official partner with installation and service, you get a proven solution with warranty support for years to come.

The GoodWe GW15K-ET-20 three-phase hybrid inverter is the component you shouldn't skimp on: it's the inverter that determines whether your solar station will be truly autonomous, safe, and profitable. It provides light when your neighbors don't have it, squeezes the most out of each panel, and turns the sun and battery into daily comfort and savings.