Distributed energy resources (DERs) have become a major part of the power generation landscape, particularly in support of a more reliable and resilient grid. Generating electricity from a variety of ...

Abstract: In DC microgrids, constant power loads (CPLs) inherently exhibit negative impedance characteristics, which are widely believed to degrade system stability as their penetration level ...

Investopedia contributors come from a range of backgrounds, and over 25 years there have been thousands of expert writers and editors who have contributed. bluestocking / Getty Images Load and no-load ...

Troy Segal is an editor and writer. She has 20+ years of experience covering personal finance, wealth management, and business news. Gordon Scott has been an active investor and technical analyst or ...

A 3D shape with all straight edges and flat faces is a polyhedron. Other 3D shapes with least one curved surface are not polyhedra. A 3D shape with regular polygonal faces, meeting at equal angles, is ...

A resurgence of violence along the Thai-Cambodia border, including Thai airstrikes on targets in Cambodia on Monday, comes less than two months after the signing of a peace agreement between the ...

CASE UPDATE: In September 2025, the Austin Police Department identified Robert Eugene Brashers, a serial killer and rapist, as the suspect in the Yogurt Shop murders. Brashers, who is deceased, was ...

Everything about 25-year-old Cynthia Gonzalez's murder in Texas in 1991 pointed to a male killer. Gonzalez was an exotic dancer who worked private events, sometimes for solo customers. The night ...