The expansion of wind-generation in the United States poses significant challenges to policy-makers, particularly because wind’s intermittency and unpredictability can exacerbate problems of congestion on a transmission constrained grid. Understanding these issues is necessary if optimal...

The expansion of wind-generation in the United States poses significant challenges to policy-makers, particularly because wind’s intermittency and unpredictability can exacerbate problems of congestion on a transmission constrained grid. Understanding these issues is necessary if optimal...

Large penetration of Renewable Energy Sources (RES) impacts Energy Supply Industry (ESI) in many aspects leading to a fundamental change in electric power systems. It raises a number of technical challenges to the Transmission System Operators (TSOs), Distribution System Operators (DSOs) and...

With a rapidly increasing fraction of electricity generation being sourced from wind, extreme wind power generation events such as prolonged periods of low (or high) generation and ramps in generation, are a growing concern for the efficient and secure operation of national power systems. As...

Electricity generation accounts for 40% of CO2 emissions from fossil fuel combustion in the United States. Section 111 of the Clean Air Act (CAA) allows for greenhouse gas emission regulation by the US Environmental Protection Agency (EPA). In June 2014, EPA issued the Clean Power Plan that...

The expansion of wind-generation in the United States poses significant challenges to policy-makers, particularly because wind's intermittency and unpredictability can exacerbate problems of congestion on a transmission-constrained grid. Understanding these issues is necessary if optimal...

This paper presents novel analyses of high-resolution wind power and electric system load time series data. We use a discrete wavelet transform to resolve the data into independent time series of step changes (deltas) at different time scales, and present a variety of statistical metrics as a...

The variability of renewable energy is widely recognised as a challenge for integrating high levels of renewable generation into electricity systems. However, to explore its implications effectively, variability itself should first be clearly understood. This is particularly true for national...