Electrical Transient Analyzer Program
{{short description|Power system software modeling tool}}
{{Multiple issues|
{{Undisclosed paid|date=August 2021}}
{{Notability|Corp|date=September 2022}}
{{COI|date=September 2022}}
}}Infobox company{{Infobox company
| name = ETAP - Operation Technology, Inc.
| logo = ETAP Color Logo
| logo_size = 100px
| logo_caption = ETAP
| logo_alt = ETAP
| type = Private
| area_served = Worldwide
| key_people = {{Unbulleted list|Tanuj Khandelwal (Chairman & CEO)||Tuan Lam (CTO, Digital Twin)|Farrokh Shokooh (Chairman & CEO, 1986–2021)}}
| production_year = ETAP 24.0 - Released September 2024
| industry = Computer software
| homepage = {{URL|https://etap.com}}
| founder = Farrokh Shokooh
| foundation = 1986
| location = Irvine, California
}}
Electrical Transient Analyzer Program (ETAP) is an electrical network modeling and simulation software tool{{Cite web|url=https://www.researchgate.net/publication/258120777|title=Electrical Network's Modeling & Simulation Tools: The State of the Art.|last=|first=|date=|website=|archive-url=|archive-date=|access-date=}} used by power systems engineers to create an "electrical digital twin" and analyze electrical power system dynamics,{{cite book |last1=Hase |first1=Yoshihide |title=Power system dynamics with computer based modeling and analysis |date=December 2019 |isbn=978-1-119-48745-6 |pages=1112 |publisher=John Wiley & Sons |url=https://www.wiley.com/en-us/Power+System+Dynamics+with+Computer+Based+Modeling+and+Analysis-p-9781119487456}} transients and protection.{{Cite web |url=https://www.oit.va.gov/Services/TRM/ToolPage.aspx?tid=10783 |title=Electrical Transient Analyzer Program (ETAP) |website=United States Department of Veterans Affairs |publisher=United States Department of Veterans Affairs |location=United States }}
Schneider Electric took controlling stake in ETAP on November 16, 2020, to spearhead smart and green electrification.{{Cite web|title=Schneider Electric invests in Operation Technology, Inc. ("ETAP") to spearhead smart and green electrification {{!}} Schneider Electric Global|url=https://www.se.com/ww/en/about-us/newsroom/news/press-releases/schneider-electric-invests-in-operation-technology-inc-“etap”-to-spearhead-smart-and-green-electrification-5fb224cc8c11a759eb3b4e16|access-date=2021-03-23|website=www.se.com|language=en-WW}} The current CEO of ETAP is [https://etap.com/company/news/in-the-news/2022/03/23/tanuj-khandelwal-ETAP-CEO Tanuj Khandelwal] who previously held the role of CTO and has been employed at ETAP for over 20 years.
ETAP was developed for utilization on MS-DOS operating system and intended for commercial and nuclear power system analysis {{cite book |last1=Shertukde |first1=Hemchandra |title=Power systems analysis illustrated with matlab and etap |date=January 29, 2019 |publisher=PRODUCTIVITY Press |isbn=9781498797214 |url=https://www.crcpress.com/Power-Systems-Analysis-Illustrated-with-MATLAB-and-ETAP/Shertukde/p/book/9781498797214}} and system operations.
Power system simulation requires an electrical digital twin consisting of a power system network model that includes system connectivity, topology, electrical device characteristics, historical system response and real-time operations data in order to make offline or online decisions. ETAP power engineering software utilizes an electrical digital twin in order for electrical engineers and operators to perform following studies in offline or online mode.{{citation needed|date=September 2022}}