Chinese solar manufacturer JA Solar Holdings says it has attained 20 per cent solar energy conversion efficiency in its multi-crystalline silicon solar cell, which it says is a world record for a multi-Si solar cell efficiency. The new mark came just 9 months after it had set a previous record of 19 per cent efficiency in its multi-Sci cells. The
Representatives from Illinois Institute of Technology (IIT), ComEd, Silver Spring Networks (SSNI) and West Monroe Partners have opened theCenter for Smart Grid Application, Research and Technology (CSMART). CSMART is dedicated to researching, testing and analyzing the latest smart grid and smart city technology innovations in a real-world environment. Located at IIT’s Robert W. Galvin Center for Electricity Innovation and built
Researchers at MIT have improved a proposed liquid battery system that could enable renewable energy sources to compete with conventional power plants. Donald Sadoway and colleagues have already started Ambri, Inc. to produce electrical-grid-scale liquid batteries, whose layers of molten material automatically separate due to their differing densities. But the new formula — published in the journal Nature by Sadoway,
The energy internet was the focus of a talk during the afternoon plenary session at the 2014 Darnell Energy Summit (DES ’14) by Dr. Alex Q. Huang, Progress Energy Distinguished Professor with theFREEDM Systems Center at NC State University. After presenting an overview of the concept of the “energy internet” as it related to today’s utilities and the emerging smart
Vishay Intertechnology, Inc. today introduced 15 new 200 V Gen-2 TMBS® Trench MOS Barrier Schottky rectifiers featuring a wide range of current ratings from 5 A to 30 A in four power package options. With low forward voltage drops down to 0.65 V typical at 15 A, the rectifiers offer high-efficiency operation for telecom power supplies and LED lighting applications.
For TV and monitor manufacturers needing a cost-effective solution for driving LED backlights, Diodes Incorporated has introduced a constant-frequency, voltage-mode, external-compensation boost controller. The highly-integrated AL3022 is supplied in the small footprint SO-8 package and significantly reduces the number of external components required for system design. Operating at a fixed switching frequency of 140kHz, the controller handles up to 60W
KEMET Corporation today introduced its new high-temperature radial molded multilayer-ceramic capacitors which offer industry-leading performance in extreme environments and high temperature up to 200 degrees Celsius. These capacitors are designed specifically to withstand the severe shock and vibration conditions associated with deep-well and horizontal drilling activities, and are also well-suited for use in geophysical probes, hybrid and electric motor drives,
Saelig Company, Inc. announces the availability of the CLIPPER CLP1500V15A1 – a new, high technology oscilloscope adapter that allows small voltages to be measured in the presence of very high voltages, such as those present on switching MOSFETs or IGBTs (Insulated Gate Bipolar Transistors). Making accurate measurements in the presence of very high voltages has previously been extremely challenging, but
Toshiba Mitsubishi-Electric Industrial Systems Corporation (TMEIC) has formed a new manufacturing subsidiary in North America, TMEIC Power Electronics Products Corporation, to manufacture photovoltaic (PV) inverters and medium-voltage (MV) variable-frequency drives in North America. Fabrication of PV inverters will commence in the Fall of 2014, followed by MV drives in the Spring of 2015 at the Houston, Texas based facility. The
A new research platform was inaugurated on today in Ulm at a ceremony attended by Federal Minister of Education and Research Johanna Wanka. Leading German industrial companies will be able to develop methods of manufacturing large, vehicle-grade lithium-ion batteries at this facility. A fourth building with 3,600 m² of floor space was added to the ZSW Laboratory for Battery Technology