By submitting this form you agree to pv magazine using your data for the purposes of publishing your comment.

Also this month, a research team from U.S.-based Stanford University announced the development of a prototype of a manganese-hydrogen battery for the storage of power produced by large-scale wind and solar facilities. The prototype of the water-based battery may only be three inches tall and able to generate 20 milliwatt hours of electricity, however the researchers believe the device could reach an industrial scale, thus becoming able to “charge and recharge up to 10,000 times.”

Alpha and Omega Semiconductor Limited, together with its subsidiaries, designs, develops, and supplies a portfolio of power semiconductors for consumer, computing, communications, and industrial markets primarily in the United States, Hong Kong, Macau, China, Taiwan, South Korea, Japan, and Germany. It offers various power discrete products, including low, medium, and high voltage power metal-oxide-semiconductor field-effect transistors (MOSFETs); and SRFETs, XSFET, electrostatic discharges, protected MOSFETs, and insulated gate bipolar transistors, which are used for routing current and switching voltages in power control circuits. The company also provides power IC products comprising devices that are used for power management and power delivery; and analog power devices that are used for circuit protection and signal switching. Its power discrete products are used in applications, such as smart phone charges, battery packs, notebooks, desktop and servers, data centers, basic stations, graphics card, game boxes, TVs, AC adapters, power supplies, e-bikes, motor control, power tools, e-vehicles, white goods and industrial motor drives, UPS systems, wind turbines, solar inverters, and industrial welding; and power ICs have applications in flat panel displays, TVs, notebooks, ultrabooks, servers, DVD/Blu-Ray players, set-top boxes, and networking equipment, as well as desktop PCs, tablets, smartphones, and portable electronic devices. The company markets its products directly, as well as through distributors and original design manufacturers to original equipment manufacturers. Alpha and Omega Semiconductor Limited was incorporated 2000 and is headquartered in Sunnyvale, California.

Faced with high energy costs and unreliable power supply with many farms connected through  long ‘skinny’ lines, Aussie farmers are eager to consider energy efficiency solutions on-farm. As demonstrated in a report from Commonwealth Bank released last year, solar power+battery back-up top the wish list for 76% of Australian farmers.

The result is the same: Both Cushman, who cofounded a battery startup called IFBattery in 2016, and Cronin say their tricked-out flow batteries could be small and light enough for use in electric vehicles. Both also say the electrolyte can be recycled in a process Cushman likens to recycling cans.

This table compares Alpha and Omega Semiconductor and China Sunergy’s gross revenue, earnings per share (EPS) and valuation.

Picture: Littelfuse’s new LSIC2SD065CxxA (left) and LSIC2SD065AxxA (right) GEN2 650V SiC Schottky diodes.

China-made on-board charger (OBC) is priced at RMB1,000-4,500/unit for the moment. The larger power it is, the higher price will be. OBC falls into three types by power: <2.5KW, 3-5KW (mostly 3.3KW), and >6KW, respectively for EVs with battery capacity less than 15kWh, 15-24kWh electric passenger cars and small logistics vehicles, and 24kWh-above electric commercial vehicles and logistics vehicles. Market price of 6.6KW charger stands at RMB3,500-4,500, 3.3KW at RMB1,500-2,000 and 2KW at around RMB1,000.

This energy efficient hybrid power system features ABB’s market leading technology, REACT 2, selected because of its higher IP class and large storage capacity. The ABB team also installed a frequency converter, ABB ACS355 drive, in order to control the 3-phase compressor and avoid over limits of the system.

The global Inverter Technology Refrigerators market is valued at xx million US$ in 2018 is expected to reach xx million US$ by the end of 2025, growing at a CAGR of xx% during 2019-2025.

The threshold of enhancement-mode GaN FETs is lower than that of silicon MOSFETs. This is made possible by the almost flat relationship between threshold and temperature along with the very low gate-to-drain capacitance (CGD). The device starts to conduct significant current at 1.6 V, so care must be taken to ensure a low impedance path from gate-to-source when the device needs to be held off during high-speed switching.

Irish startup SolarMarine Energy got a $225,000 grant from the government last month to develop its floating solar technology. Details are scarce, but the company says it is developing both inshore and offshore platforms.