About ETAP

ETAP is a full spectrum analytical engineering firm specializing in the planning, design, analysis, operation, training, and computer simulation of power systems.

ETAP is the most comprehensive power system enterprise solution. With tens of thousands of licenses in use in more than 100 countries, ETAP serves the power system needs from generation to utilization.

ETAP employs a research and development team supported by a staff of engineers and scientists who have a combined knowledge of over 500 years experience. ETAP is privileged to have a permanent staff of power system engineers, many of whom have been internationally recognized as experts in their field. ETAP is committed to providing quality solutions for electrical power systems.

Incorporated in 1986, ETAP released the first version of Electrical Transient Analyzer Program (ETAP) power system analysis and design software. Today, ETAP is recognized as the global market leader in providing solutions for power systems analysis, design, simulation, operation, control, optimization, and automation.

  • ETAP is the only power system analysis software approved for use in nuclear / high-impact facilities
  • ETAP released the first 32-bit power system analysis program for Windows
  • ETAP Real-Time was launched to meet the growing demands for online system monitoring, simulation, control, and automation
  • ETAP has grown to be the world's largest power system analysis software company
  • ETAP continues to meet client needs by incorporating the latest advances in power and software technologies.

In 1996 ETAP released the first, true 32-bit, power system analysis program on the market for Windows. ETAP is designed for Microsoft Windows and contains many advanced features including ODBC, multidimensional database, composite network nesting, and more.

ETAP developed ETAP Real-Time to provide online (real-time) monitoring, simulation, control, and supervisory control capabilities. ETAP Real-Time uses real-time data and system topology (ETAP database) to estimate unmonitored power flows and voltages throughout the system.

Along with aggressive development and product maintenance, ETAP utilizes a highly specialized team of engineers to conduct research and development projects as well as system studies.

In recent years, ETAP has grown to include specialized consultants, design engineers, cutting-edge programmers, and an experienced sales staff. ETAP will continue to meet its clients' needs by incorporating the latest advances in technology into both software development and engineering services.

Mission Statement

Our mission is to provide state-of-the-art products and superior engineering services by combining advanced technologies with the highest standard in quality to achieve overall customer satisfaction.



Timeline of ETAP


  • 2014

    ETAP 12.5 & 12.6

    ETAP 12.5 and 12.6 releases include new analysis features and enhanced capabilities which effectively enable optimized design, increase safety, quality, and productivity. Among the many enhancements is the addition of double Open-Phase Faults Analysis (OPFA) to the Unbalance Load Flow module, allowing the user to conduct single and double open-phase fault studies which improves plant safety and reliability.

  • 2013

    ETAP 12.0

    New major release includes Interharmonics, Open Phase Fault, Built-in conversions from SKM® Dapper® & Captor® and EasyPower®, DC Photovoltaic Panels, Batch Cable Management, over 4,800 newly added library devices, Multi-language Edition and many more new features and capabilities.

  • 2012

    ETAP 11.1

    New major release includes ETAP DC Arc Flash Module, Conversion tool from Dapper® PTW32 versions 6.0 & 6.5, Import from PSS®E version 29 & 30, Updated cable library based on NEC® 2008, New cable library based on British Standard, New protective device library, Multi Language Edition and many more new features.

  • 2011

    ETAP 11.0

    New major release includes ETAP Project Merge, ETAP Data Manager, UDM Logic Editor, Photovoltaic Array Editor, Protective Conductor Sizing and many more new features.

  • 2010

    ETAP 7.5

    Multiple Language Support

    Localized languages include English, Spanish, Chinese and Japanese plus translated output reports in six languages including German and Portuguese.

  • 2009

    ETAP 7.0 is released

    Major New Features include: Smart Grid Solutions, Single-Phase Arc Flash, Switching Sequence Management, and Load Analyzer

  • 2008

    ETAP 6.0 is released

    Major New Features include: Renewable Energy, BS 7671 Cable Sizing, Data Comparator, and Report Analyzer

    ETAP receives CSE, Product of the Year Award

  • 2007

    ETAP 5.6 is released

    ETAP Solution Provider Program is established

    New Module: Automatic Generation Control (AGC)

  • 2006

    ETAP 5.5 is released

    New release contains Chinese Version, and Japanese Version

    New Module: Intelligent Substation (iSub)

  • 2005

    New Modules added to ETAP include: Energy Management System (EMS), Intelligent Load Shedding (ILS), and ETAP ARTTS Relay Testing Hardware

  • 2004

    ETAP 5.0 is released

    Major new features contain the following modules: Control Circuit Diagram, Unbalanced Load Flow, Line Sag & Tension, Arc Flash Analysis, ETAP GIS, ETAP Star Device Coordination

  • 2002

    ETAP 4.7 is released

    ETAP Learning Center is established

  • 2001

    ETAP 4.0 is released

    Major new features contain the following modules: Reliability Analysis, Ground Grid Design, Panel Systems, UDM, ETAP DataX

    OTI, Far-East Office is opened

  • 2000

    ETAP 3.0 is released

    Major new features contain the following modules: Harmonic Analysis, DC System, Generator Startup, Optimal Power Flow

    First Annual ETAP Nuclear Conference is held

  • 1998

    ETAP 2.0 is released

    Major new feature is Power System Monitoring & Simulation (PSMS)

  • 1996

    ETAP 1.0 is released

    It's the first Power Analysis Program for Windows 32-bit systems

  • 1995

    ETAP releases DOS 7.3

    ETAP get's ISO 9001 Certification

  • 1993

    ETAP releases DOS 6.5

    ETAP releases DOS 7.1

  • 1991

    ETAP attains Nuclear Certification

    First Installment of ETAP Real-Time is implemented

  • 1986

    Operation Technology, Inc. is Established

    ETAP has its first release of ETAP DOS 1.0

  • 1983

    Development of ETAP begins