Efficient Energy Technology GmbH(EET)位於奧地利，是設計和生產創新、用於陽臺的小型發電廠的先驅。EET公司選用了宜普電源轉換公司(EPC)的增强型氮化鎵(eGaN^®)功率電晶體（EPC2204）, 用於其新型SolMate^®綠色太陽能陽臺產品。EPC2204在低R_DS(on)和低C_OSS之間實現了最佳折衷，這對於要求嚴格的硬開關應用至關重要，同時在緊凑的封裝中實現100 V的汲-源擊穿電壓。這種緊凑型設計顯著縮小了PCB的尺寸，保持較小的電流廻路和最大限度地減少EMI。

EET公司結合了EPC的氮化鎵元件和其SolMate MPPT充電轉換器，以實現多種優勢：效率損失半和整體效率從96%提高到98%。轉換器的體積縮減了70%、BOM和製造成本降低了 20%，而且同時降低了對散熱的要求。此外，由於開關頻率提高了10倍，因此無需使用易於引發問題的電解電容器，從而延長了轉換器的使用壽命。

As the revolution of renewable energy as well as transportation electrification progresses, the need for residential energy storage systems is increasing. A high efficiency DC-to-DC converter is usually required to exchange energy generated from renewable sources, such as solar panels, with a battery. The fast-switching speed and low R_DS(on) of gallium nitride (GaN) FETs can help save energy by reducing power consumption inside the DC-to-DC converter. This article shows how to design a high efficiency 100 – 250 V to 40 - 60 V DC-to-DC converter.

Power Electronics Europe
May, 2023
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GaN FETs help Solarnative achieve industry-leading power density for solar microinverters, enabling module frame integration to solve the challenges of solar power installation.

EL SEGUNDO, Calif.— November 2022 Solarnative uses GaN devices in its new microinverter to achieve industry-best power density.  The Power Stick is the smallest inverter in the world, with dimensions of 23.9 by 23,2 by 404 millimeters. With an AC output power of 350 W, the volume of 0.19 liters corresponds to a power density of 1.6 kW per liter. By comparison, the IQ 7A microinverter from a market leading supplier delivers 349 watts with a volume of 1.12 liters, corresponding to 0.31 kW per liter – not even one-fifth of the Solarnative device. Despite the extreme size reduction, the European efficiencies are quite comparable, at 96.0 percent for the Power Stick and 96.5 percent for the IQ 7A.

BRC Solar公司的新型M500/14功率優化器採用EPC公司的100 V 氮化鎵元件（EPC2218)，它的佔板面積小，可實現更高的頻率和額定功率。

BRC Solar公司憑藉其功率優化器徹底改變了光伏市場的發展、提高了光伏電站和系統的發電量和性能。其新一代M500/14 功率優化器採用了宜普電源轉換公司的EPC2218（100 V的場效應電晶體），實現了更高的功率密度，因為GaN FET的低功耗和小尺寸使關鍵負載電路更加緊凑。而GaN FET的小寄生電容和電感可實現沒有雜訊的開關和良好的EMI特性。GaN FET的另一個優點是沒有反向恢復損耗。