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Inverters

Huge opportunity for module-level power electronics

A new report form analysts at IHS Markit notes that the market for module-level power electronics (MLPE) grew by 33% between 2019 and 2021, with around one-third of new residential solar installations now taking advantage of MLPE’s promise of improved safety, energy yield and fault detection. And with smaller, distributed generation systems expected to represent 43% of global PV installations between now and 2025, the opportunity for MLPE will only get larger.

Photovoltaic micro-inverter based on gallium nitride transistors

Scientists from France’s CEA-Ines developed a 400 W micro-inverter with a power density of 1.1 kW/L and an efficiency of 97%. The device utilizes GaN 600V diodes and power transistors developed by CEA’s electronic branch CEA-Leti.

Enphase surpasses 5 million shipments of microinverters produced in India

USA-headquartered Enphase manufactures microinverters in India from Finnish company Salcomp’s plant in Chennai.  

Study confirms rule of thumb that PV inverters should run without faults for around 15 years

A new study by Bern University of Applied Sciences shows that the performance of most PV inverters and power optimizers remains optimal for up to 15 years. The inverters considered came mainly from the manufacturers Fronius, Sputnik, and SMA and most of the power optimizers examined came from Solaredge.

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Huawei tops inverter supply rankings for 2021

China’s Huawei has been named the world’s biggest inverter supplier for the seventh year in a row, followed by Sungrow and Growatt, according to Wood Mackenzie.

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General Electric to triple its solar and battery energy storage capacity in India

The US multinational will expand the solar and battery energy storage manufacturing capacity at its factory in Tamil Nadu to 9 GW per annum by the end of 2022. The factory manufactures FlexInverter power conversion solution and FlexReservoir utility-scale energy storage solution.

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Solis unveils off-grid PV inverter

The S5-EO1P(4-5)K-48 series off-grid PV inverter has an efficiency of 96.7% and supports parallel operation of up to 10 units, which allows for a system capacity of up to 50 kW. According to the manufacturer, the device is compatible with all top-tier brands of lithium-ion and lead-acid batteries.

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The long read: Tapping the solar data trail

US-based energy tech company Enphase Energy appears to have overcome the adversity it faced in the mid-2010s, when it was grappling with competition from string inverters and slower growth in the residential segment. Now that rooftop solar is hot again, Enphase’s co-founder and chief product officer, Raghu Belur, sat down with Tristan Rayner to discuss the microinverter pioneer’s approach to quality in a time of rapid change and the growing utility of connected devices.

Solar inverter fault detection techniques at a glance

New research has categorized all existing fault detection and localization strategies for grid-connected PV inverters. The overview also provides a classification of various component failure modes and their potential causes in a tabular form.

SMA unveils new inverter for residential, commercial PV

SMA is offering a new line of four inverters with power ratings of 12kW, 15kW, 20kW and 25kW, for use in rooftop PV systems up to 135kW in size. It claims the inverters provide grid-compliant power control of entire systems and enable over-dimensioning of PV arrays by up to 150%.

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