Principal. Pterra founder. Over thirty years experience in
electric power transmission planning, operations, analysis, design
and engineering, and brings this knowledge to help clients worldwide
in the power industry.
He is an expert in the specialized fields of system reliability,
transmission planning, energy markets and system analysis. He has
provided expert testimony in these areas in filings with the FERC ,
state and local public commissions. He has led and conducted
transmission studies in all US interconnections and over 25 national
networks worldwide including applications in transmission
congestion, online security assessment, locational marginal pricing
for energy markets and firm transmission rights. Mr. Austria has
spoken at numerous conferences, authored articles and participated
in working groups on the subject of electric power transmission. He
has taught courses for control center operators, planners and
utility managers on various technical subjects focused on electric
Mr. Austria was formerly Vice President of Consulting at Power
Technologies, Inc. (Schenectady, New York), Vice President of
transmission studies at EPRI Solutions, Inc. and Senior Specialist
at the National Power Corporation.
Focus areas: Transmission planning; voltage control and reactive power planning and design; power system analysis; power system stability; power system reliability; transmission reliability; operations planning; software development; planning and operations training; energy markets.
Dr. Moises Gutierrez
Consultant. Founding member of Pterra, LLC and has more than 30 years of experience
which includes interconnection studies, transmission access studies,
power system expansion studies, dynamic modeling, dynamic analysis
of power systems, feasibility studies, substation layout studies,
switching and lighting surge analysis, transformer and induction
machine model reduction, software model development, and teaching
engineering and software courses. He has had consulting stints with
Power Technologies, Inc. (PTI) (1997-2004), and Utility System
Technologies (1993-1997). He was a researcher at Rensselaer
Polytechnic Institute (1987-1993). Dr. Gutierrez was Engineering
Director at the Nicaraguan Institute of Energy (1969-1987).
areas: Interconnection studies, transmission access studies, power system expansion studies, dynamic modeling, dynamic analysis of power systems, feasibility studies, substation layout studies, switching and lighting surge analysis, transformer and induction machine model reduction, software model development.
Dr. Le Hui
Dr. Hui has been active in research in the field of electric power
engineering to develop novel technologies for next-generation
high-voltage cables, fluids for smart transformers, and high energy
battery packs for portable devices during her academic training. She
has solid background on power system modeling and analysis, and used
different programming languages to develop power system models and
implement load flow analysis as well as fault analysis. Her
current interest is on renewable energy integration. At Pterra, she
is involved in model development and the studies of impact of
renewable resources on the stability of the grid. She is proficient
in commercial software such as DistriView and SynerGEE for
distribution circuit studies.
Areas of focus: Power system modeling, load flow
analysis, fault analysis, protection, power equipment, high voltage
Amin Mahdieh Najafabadi
Mr. Najafabadi is a Consultant with Pterra focusing on electric
power system control, analysis and design. His experience includes
studies of distribution circuit relaying and protection,
transmission system stability, high levels of penetration of
photovoltaic (PV) generation and high inrush current devices on
distribution networks, and voltage flicker mitigation, among others.
He has a solid background in power system modeling and analysis, and
has used different programming languages and commercial software to
develop power system models and to conduct analysis of real world
reliability and technical issues.
At Pterra, Mr. Najafabadi is involved in model development and
interconnection studies of renewable resources.
More of Our Team
For a full summary of our resources available for specific needs, please contact us at firstname.lastname@example.org.
Principal. Pterra founder. Over 30 years experience in
transmission planning, operations and software development. He has
led and conducted transmission studies nationwide and overseas to
assist Transmission Owners and ISO’s to develop sound solutions for
the planning and operation of their interconnected power systems.
Mr. Tapia’s experience also includes participation on various task
forces of both, the North American Electric Reliability Council (NERC),
and the Northeast Power Coordinating Council (NPCC) addressing
operational model development and interregional transfer capability
analysis. Mr. Tapia has authored several articles on the subject of
electric power engineering.
Focus areas: Power system analysis; operations planning; voltage control and reactive power planning;
transfer limit analysis and application of optimization techniques to power system operation and planning,
wind farm modeling.
Founding member of Pterra, LLC. His
background is in power system studies, electrical measurements and relay
testing having participated in numerous analytical studies on electrical transmission systems in the US interconnections as well as several other countries. He has extensive experience with substation equipment and has worked with equipment vendors during the design, commissioning and startup of a 230 kV transmission line and associated substations. He has performed and directed power flow, short circuit, transient stability, protective relaying, motor starting, power factor correction, and voltage regulation studies for many industrial plants in the US and several other countries. Mr. Dartawan was formerly Senior Consultant at Power Technologies, Inc. (Schenectady, New York) and Senior Engineer at Freeport McMoRan, one of the biggest copper and gold mining companies in the world.
areas: Short-circuit calculation and substation equipment duty
application, bulk power system operation and planning which includes
power flow, short-circuit, and transient stability analysis.
Industrial power system application which covers coordination of
protective relaying, harmonic, motor starting, voltage regulation,
power factor correction, power flow, short circuit, transient
stability, and electrical measurements.
Dr. Mahmoud Elfayoumy
Founding member of Pterra, LLC. Dr. Elfayoumy has extensive experience in electrical power system
planning. He participated in numerous analytical studies on
electrical transmission systems nation wide to assist electric
utilities and independent power producers in developing solutions
for safe and reliable power system operation. Moreover, Dr.
Elfayoumy provided training to power system engineers in the use of
power system analysis packages and teaching short technical courses
for several clients. Dr. Elfayoumy is Member of IEEE and PES
society, a member of TAU BETA PI professional engineers honor
society chapter of Washington DC, and a member of Sigma Xi
professional scientific research society.
areas: Power system analysis, bulk power system reliability planning, transfer limit analysis, power system operation, power system stability, wind power integration in bulk power systems, software development, and artificial intelligence applications to power systems.
Consultant. Mario Infantado has over 20 years of experience in
the electric power industry. In his career, he has been most
recently involved in transmission planning studies. He brings into
this arena of study his experience in the field as a lead engineer
involved in substation projects as well as testing, commissioning,
troubleshooting and preventative maintenance of power equipment,
relays, instrumentation, controls and communication systems in power
plants and substations, and as a generalist who has overseen
technical aspects and logistical management of capital, physical,
and human assets in large engineering projects. Mr. Infantado
brings to Pterra’s clients his wealth of background and experience
to enable the efficient and effective conduct of detailed planning
and operational studies of transmission and distribution systems,
and to provide timely and responsive delivery of analytical results
Areas of Focus: Load flow
analysis, dynamic simulation and analysis of power systems, software
Anthony Austria has been with Pterra since 2007 as a student intern,
junior engineer and now Consultant. His areas of expertise
include power flow, transfer analysis and transient modeling, and
has applied his skills to studies involving the integration of new
generation, primarily solar and wind, as well as the transmission
studies of large interconnected networks. His recent work
involved power exchange capacities among South Asian countries of
India, Bangladesh, Sri Lanka, Bhutan and Nepal, as well as between
the various Indian states. He has also been active in studies
of transient and temporary overvoltages and voltage flicker of solar
inverters. He is proficient in the power system applications
of software such as PSCAD, PSLF and Matlab.
Anthony Austria is a 2009
graduate of Rensselaer Polytechnic Institute in Troy, New York with
a Bachelor's Degree in Biomedical Engineering.