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Southwest Power Pool, Inc. (SPP) — a Regional Transmission Organization that serves all or part of fourteen states in the central United States — runs next-day and current-day markets that provide energy and ancillary services to its region’s load. Our service territory has been nicknamed the “Saudi Arabia of Wind”. It encompasses some of the…

The Control Center for Renewables (CECRE) was officially inaugurated in 2007 to supervise and, if necessary be able to control, renewable energy facilities larger than 10 MW in Spain.  The purpose was to assure the integration of renewable energies in the Spanish peninsular system, maximizing their output, while maintaining the same high security of supply standards.…

With an increasing share of variable generation on the grid, traditional power generation resources equipped with automatic generation control and automatic voltage regulation controls are being displaced. To support grid stability and reliability, deployment of PV power plants that incorporate advanced grid services capability becomes increasingly essential. Recognizing this need, CAISO with support from NREL…

With the increased penetration of renewable resources, and the available flexibility in terms of control provided by converter interfaced generation and load, it is not far-fetched to envision a future electric grid in which all sources of power and load are interfaced to the network through power electronic converters.  Consequently, the system has zero inertia. …

Although I was raised in Georgia and now live in Iowa, I “grew-up” professionally in California as a planning engineer for PG&E, 1985-1990, performing dynamic analysis of the Western Interconnection (WI). The nature of many WI dynamic problems is such that it is essential to model the entire WI when studying them, yet, computational barriers…

My formal involvement in DER integration work with Utility Wind Integration Group (now UVIG) dates to 2004. Many of the specifics have changed since then, but I would offer the same forecast in 2017 as in 2004; we are entering a new period of uncertainty, challenge and opportunity related to DER. In updating the U.S.…

As distributed PV (DPV) continues to proliferate at the customer end of power grids across many parts of the world, DPV’s impact on short-term load forecasting (STLF) has become a significant emerging challenge for ISO/RTOs. For several decades, STLF tools have provided industry with a key ingredient for the reliable operation of the bulk system,…

Yes and no, it all comes down to how you count. If you zoom in you can just as well argue that wind covered anything between 0 to 139 percent of the Danish demand for each hour, 1 to 104 percent per day or 9 to 78 percent per week. Power system engineers tend to…

If you work in the electric industry, you have probably already experienced the unprecedented change transforming the bulk power system across North America. The grid as we know it is in the midst of an evolutionary shift that will shape our energy resources for years to come. The rules of the road are evolving to…

The Ireland (IRE) and Northern Ireland (NI) power system is a synchronous system of approximately 7,000 MW peak, with over 9,000 MW of installed conventional plant and almost 3,000 MW of wind. There are currently two HVDC interconnectors to Great Britain totaling an import/export capacity from the island of up to 1,000 MW.  The system…