ETAP

ETAP is an electrical power systems analysis and operations platform developed by ETAP (Operation Technology, Inc.), a company based in California and now part of Schneider Electric. The software supports the design, simulation, optimisation, operation and automation of generation, transmission, distribution and industrial power systems. It addresses the complexity and risk inherent in electrical engineering, where networks must be designed to operate safely and reliably under normal and fault conditions, meet regulatory standards and adapt to changes such as renewable energy integration and electrification. ETAP approaches this with a model-driven platform in which engineers build a single digital model of the electrical system that can be used for design studies, operator training and real-time operations, creating a continuous digital twin from planning to control.

Core analysis modules include load flow, short circuit, arc flash, protective device coordination, motor starting, harmonics, transient stability, cable sizing, grounding grid design and reliability assessment. Specialised tools support renewable energy systems, battery storage, microgrids, DC systems, railway traction networks and data centres. ETAP's real-time solutions extend the model into operations, providing power management systems, energy management, load shedding, supervisory control and advanced distribution management capabilities that use live data to monitor, predict and optimise system performance. The software complies with a wide range of international standards, including IEEE, IEC and ANSI, and is verified and validated under quality assurance programmes that suit nuclear and other highly regulated sectors. Integration with GIS, SCADA and CAD systems supports data exchange across engineering and operational teams. ETAP is used by electrical engineers, consultants, utilities, oil and gas operators, manufacturers, mining companies, data centre operators, transport authorities and nuclear facilities worldwide, as well as by universities for teaching. Pricing starts from around USD 1 according to this listing, though licences are typically quoted by module and configuration; a free trial is available and there is no permanently free version.