PowerGEM (grid engineering and markets) develops proprietary power grid and energy market simulation software, including TARA, DAYZER, SERVM, PROBE and MCast, and delivers related consulting and managed services. Its work covers transmission reliability, interconnection, energy market analysis, resource adequacy and expansion planning, and regulatory support. Customers include U.S. system operators, utilities, power producers, developers, consultants and traders. Founded in 2000, the company has acquired Power Info to expand its standards-based grid modeling expertise.