Hitachi Energy Ltd.

New generation high power semiconductors for VSC-HVDC applications

Recent development efforts are aimed to further increase the single device current capability of an IGBT and fast recovery diode. The result is a 5 kA IGBT press-pack device, with a matching freewheeling BiPolar diode.
 

HAWTS vs VAWTs: Selecting wind turbines for urban sites

Factors including wind resource availability, space limits, power needs and aesthetic concerns should be considered when deciding between horizontal or vertical axis wind turbines in urban settings. Read more →

The nuclear contribution to world energy

A World Nuclear Association analysis of International Atomic Energy Agency data reveals that nuclear energy supplied around 10% of the world's electricity and around one quarter of all low-carbon clean electricity in 2022. Read more →

Waukesha Bearings

Free white paper: An introduction to bearing materials

The selection of the bearing materials plays a significant role in the performance of fluid film bearings. Download our white paper for an overview of various materials' characteristics, benefits and limitations.
 

Per-unit system for power system analysis

Analyzing the power system is simplified using the per-unit (p.u.) system. The power system industry relies heavily on this system for expressing the voltage, current, power and impedance of a wide range of power equipment. Read more →

2022 fusion ignition: Steppingstone to clean and abundant energy generation

Arnold Magnetic Technologies is working to advance fusion technology through partnering with national labs and universities as well as directly with the organizations building fusion projects. Read more →