News & Blog

The November 2018 ESIG blog on “Implementation of Inertia Monitoring in ERCOT – What’s It All About?” discussed the importance of synchronous inertia for a power system.  It included the impacts of inverter-based resources on system inertia, and an inertia monitoring tool that ERCOT implemented to track system inertia in real time, forecast it for…

Utilities are increasingly seeking to impose additional integration charges on wind and solar generators to compensate for variability and uncertainty. Renewable Reserve Sharing Groups may provide a way to help reduce or eliminate those charges. There are two distinct ways that wind and solar generation can impact utility balancing requirements: Minute-to-minute variability of wind and…

Introduction As the growth of inverter-based resources (IBRs), such as photovoltaic, wind energy, and batteries, increases in order to decrease the carbon footprint of energy sources, utility protection engineers increasingly ask the question: “Are the protection systems installed at present capable of protecting power systems with a high penetration of IBRs?” Before we can answer…

Australia’s energy system is transforming at a pace and magnitude not previously seen or imagined. The disruption facing power systems across the globe is accelerated in Australia, as an electrically islanded nation. Indeed, by many metrics, change is happening faster in Australia than in almost all other developed economies, and it’s occurring in a physical…