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GoodWe GW40K-ET-10 - 40 kW three-phase hybrid inverter

GoodWe GW40K-ET-10 - 40 kW three-phase hybrid inverter, зображення 2

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Description GoodWe GW40K-ET-10

GoodWe GW40K-ET-10 three-phase hybrid inverter

When businesses are tired of paying commercial rates for electricity and having to stop every time there is an outage, the GoodWe GW40K-ET-10 three-phase hybrid inverter solves both problems at once. This is a powerful 40 kW hybrid from the ET series, designed specifically for commercial and industrial facilities: it combines solar generation, energy storage in high-voltage batteries and backup power in one device. In essence, you get your own mini-power plant that earns from the sun during the day, is powered by the accumulator in the evening and at night, and does not let the enterprise stop during a network failure.

Hybrid inverter technology — and what it does for business

A hybrid inverter differs from a conventional grid-connected inverter in that it manages several energy flows simultaneously: from solar panels, to and from the battery, to the facility's load, and to the grid. The GW40K-ET-10 does this autonomously, choosing the most advantageous scenario every minute. Let's analyze the technologies behind this - and most importantly, what their practical benefits are.

High-voltage battery architecture (200–800 V)

The inverter works with high-voltage storage devices in the range of 200–800 V. What this means in practice: at a higher voltage, less current is required for the same power, and therefore, less cable losses and higher system efficiency, which reaches about 98%. In simple words, more of the stored energy reaches your consumers, and does not heat the wires. In addition, such an architecture is easily scalable in capacity to the actual consumption of a particular object.

Three MPPT trackers and 150% DC overload

Three independent MPPT inputs allow you to connect arrays of panels with different orientations — say, roof slopes to the east and west — and take the maximum from each without mutual losses. And the ability to set panels to 150% of the inverter's nominal value is not about risk, but about money: excess generation pulls the station in the morning, evening, winter and in cloudy weather, when the "flat" configuration barely works. As a result, the annual production and payback of the system increase noticeably.

110% unbalanced output

This is the technology that is underestimated until they deal with a real problem. On a three-phase facility, the load is almost never distributed evenly between the phases: a powerful single-phase machine, compressor or pump "hangs" on one, and smaller ones on the others. Many inverters in this mode drop power or go into a breakdown. GW40K-ET-10 withstands a skew of up to 110% and calmly gives more to the loaded phase. In practice, this means that your single-phase equipment will work even on reserve, and will not "fall" along with the network.

Smart energy management: peak shaving, tariff zones, return limit

The inverter is able to cut peak loads (peak shaving), work according to tariff zones (charging when energy is cheap and discharging during expensive hours), and automatically limit the return to the grid in accordance with the requirements of the regional energy authority. For businesses, this is direct money: less ordered capacity, lower bills, and no sanctions for exceeding the return limits.

UPS level reserve and generator operation

In combination with the STS static switch unit, the inverter provides uninterrupted power supply at the UPS level: when the network disappears, the facility switches to the battery with almost no pause, so servers, refrigeration equipment and production lines do not even have time to "blink". Moreover, the STS is able to control a diesel generator, automatically recharging the batteries during long outages. For Ukrainian realities with schedules and emergency power outages, this is perhaps the main argument in favor of a hybrid. (Please note: a full-fledged backup function is implemented together with the STS unit.)

Parallel work and scaling

If 40 kW later becomes insufficient, the inverters are combined in parallel — both in grid and offline mode, with a single backup load. That is, the system grows with the business, and you don't have to "throw away" the money you've already invested for an upgrade.

What you will get as a result

According to our experience of installing such systems, the owner of the GW40K-ET-10 in practice receives several quite tangible results. The enterprise stops stopping during outages: a store, a refrigerated warehouse or a small production plant continue to work while neighbors wait for the light - and this means saved goods, revenue and customers. Electricity bills are reduced due to self-generation, accumulation of cheaper night energy and cutting peak loads. Limited connection to the grid ceases to be a ceiling: the sun and battery take over part of the power, and heavy three-phase equipment finally works stably, without voltage drops. And where only diesel used to save, fuel costs drop significantly - the generator turns on less often and only as a last line of defense. This is the difference for which a hybrid is bought: not a “panel on the roof for a checkmark”, but a managed energy system that brings money and peace of mind.

Why you can trust GoodWe

GoodWe is not a newcomer, but one of the world leaders in the production of inverters and storage systems. The company was founded in 2010, its products are installed in more than 100 countries, and the total volume of installations has exceeded 100 GW. The brand has Tier 1 status according to the BloombergNEF classification, and in 2020 was recognized as the No. 1 storage inverter manufacturer in the world according to Wood Mackenzie. The GW40K-ET-10 model itself is certified according to international standards (confirmed by the independent body DEKRA), has IP66 housing protection for outdoor installation, built-in surge protection and arc flash protection (AFCI). The kit includes a Wi-Fi/LAN module and a smart meter, so it is convenient to monitor the station online via the company's SEMS portal - from your phone or computer at any time.

Result

The GoodWe GW40K-ET-10 three-phase hybrid inverter is an investment in the stability and independence of your business. It reduces bills, insures against outages, and scales with your facility. If you need a reliable "heart" for a commercial solar station with storage, this is exactly the class of equipment that is purchased once and for a long time. Need help with the selection of batteries, an STS unit, or calculating the system for a specific facility - contact our specialists, and we will create the optimal configuration for your tasks and budget.