News & Blog

At night, in a large open field, one can chance upon hundreds of individual blips of light from fireflies. As time progresses, it has been observed that these blips of light start synchronizing with each other, first in small clusters, then as larger groups until all fireflies are in synchronism and order appears to emerge…

New technologies are rapidly being connected to the electricity system. The connection of these technologies (think wind, solar, storage, etc.) needs to be planned to make the whole electricity system work. The planning of electricity systems has been a relatively traditional process of studies and modeling. However, in recent years, a change has occurred, a…

As with most new technologies, the early versions of wind and solar inverters and associated plant control systems were rather simple. Today’s versions, however, are some of the most advanced devices on the grid, using digital controls, power electronics, and advanced communications systems that can provide a wide range of features and grid services. For…

Regions such as Hawaii, South Australia, Ireland and Texas have recently experienced significant growth of inverter-based renewable generation, mainly wind and solar, and are now operating with very high instantaneous penetration in excess of 50-60%. As this penetration increases globally, several regions have identified limitations and challenges which indicate that it may not be feasible…

The majority of devices that are based on power electronics (Statcoms, HVDC links, batteries, wind plants, PV solar plants, variable speed motors, converter-based loads, etc.) do not contribute synchronous inertial response to the system. As the grid transforms from the retirement of conventional thermal generation and additions of converter-based resources, it is prudent to consider…