Oktarico Susilatama Putra Pradana

Power Systems Engineer specializing in renewable energy integration, dynamic modeling, and User-Defined Models for large-scale grid projects

📍 Indonesia 🎓 MS Electrical Engineering, UT Austin · Fulbright Scholar 🔋 10+ years experience ⚡ ERCOT · PJM · MISO

Education & Certifications

MS Electrical Engineering

The University of Texas at Austin

2025 · GPA 3.79/4.0

Fulbright Scholar · George J. Heuer Fellow (2023 & 2024)

Engineer Degree (Ir.)

Institut Teknologi Bandung

2022 · GPA 3.50/4.0

BS Electrical Engineering

Universitas Diponegoro

2014 · GPA 3.76/4.0 · Magna Cum Laude

Senior Professional Engineer

Persatuan Insinyur Indonesia

2022 · Reg. No. 1026-02-052630

CIGRE Member

CIGRE U.S. National Committee

2024 – Present · No. 920241221

Professional Affiliations & Memberships

🌐

CIGRE U.S. National Committee

Member · No. 920241221 · 2024 – Present

Affiliated through The University of Texas at Austin. CIGRE is the leading global technical organisation for electric power systems, bringing together experts from over 90 countries on large electric systems.

Power Systems International CIGRE
⚙️

Persatuan Insinyur Indonesia

Senior Professional Engineer · Reg. No. 1026-02-052630 · 2022 – Present

The Institution of Engineers Indonesia. Highest professional engineering certification level in Indonesia, recognised nationally for senior engineering practice and technical leadership.

Senior Engineer Indonesia Professional Cert.
🏛️

Persatuan Insinyur Indonesia

Associate Professional Engineer · Reg. No. 2.002.22.1.2.00010899 · 2022 – Present

The Institution of Engineers Indonesia. Associate level professional engineering registration recognising formal engineering qualifications and practice within the national engineering framework.

Associate Engineer Indonesia Professional Cert.

Employment History

Senior Power System Engineer

INS Engineering · Austin, TX, USA (Remote)

June 2025 – Present

Duties

Developed high-fidelity dynamic models in PSSE and PSCAD for utility-scale renewable energy projects up to 500 MW and 345 kV, covering solar, wind, and battery energy storage systems using inverters from Sungrow, SMI, Power Electronics, and Vestas. Designed Fortran-based User Defined Models for governor and Power Plant Controllers. Built custom lithium-ion and classical battery models in PSCAD and MATLAB/Simulink for data center applications.

Achievements

Delivered over 25 compliant interconnection models meeting full ERCOT, PJM, and MISO standards. Achieved less than 0.1% deviation between PSCAD and MATLAB/Simulink battery models, well below the standard 1.64% library deviation. Benchmarked User Defined Model results against DIgSILENT PowerFactory and Python, confirming accuracy for small signal and transient stability assessment.

Graduate Teaching Assistant

The University of Texas at Austin · Austin, TX, USA

August 2023 – May 2025

Duties

Supported undergraduate and graduate power systems courses, mentoring students in power system modelling using OpenDSS and MATLAB. Conducted independent research on hardware-in-loop integration for real-time power grid measurement using LabVIEW, sensors, and DAQ systems.

Achievements

Completed a master's thesis developing a novel hardware LabVIEW framework that removed the need for a conventional transformer by stepping down 220V to 10V using a custom sensor and resistor board setup. Improved average student course project scores by 10% through case-based teaching methods.

Project Design Engineer Intern

Tesla · Giga Texas, Austin, TX, USA

May 2024 – August 2024

Duties

Designed AutoCAD electrical layouts for V3/V4 Supercharger sites and prepared full engineering drawing packages in compliance with 2018 IBC, 2020 NEC, and California Title 24 codes.

Achievements

Automated load calculations for 3 MW fast-charging sites across 12 installations, removing $65,000 in rework costs. Reduced drawing review time by 40% through standardised templates and improved mark-up clarity.

Electrical Project Engineer

PT PLN (Persero) · Riau, Indonesia

October 2016 – July 2023

Duties

Managed engineering design, field supervision, and commissioning for 150 to 500 kV substation and transmission line projects across Sumatra. Conducted system planning involving steady-state and transient stability considerations for large-scale grid expansion.

Achievements

Managed a $5 million project portfolio with a 95% on-time energisation rate. Expanded Sumatra grid bulk power capacity by 28% serving 25 million users. Delivered the first 150 kV underground cable project in Riau Province, requiring detailed cable impedance analysis.

Project Engineer

Schneider Electric · Jakarta, Indonesia

December 2014 – April 2016

Duties

Designed and tendered distribution transformers from 315 to 3150 kVA, preparing technical specifications and pricing for over 100 units per month for utility clients.

Achievements

Reduced transformer core losses by 20%, saving approximately $30,000 annually. Maintained an 80% bid acceptance rate through accurate capital expenditure and loss cost analysis.

Technical Skills

Power Systems Software

  • PSCAD/EMTDC
  • PSSE
  • EMTP-RV
  • OpenDSS
  • DIgSILENT PowerFactory
  • ETAP
  • DMView

Programming & Modeling

  • Fortran (UDM development)
  • Python
  • MATLAB/Simulink
  • LabVIEW
  • AutoCAD
  • PLECS

Specializations

  • Solar PV integration
  • Wind interconnection
  • BESS dynamic modeling
  • User-Defined Models (UDM)
  • Power Plant Controllers
  • Hardware-in-loop (HIL)

Standards & Markets

  • ERCOT interconnection
  • PJM requirements
  • MISO compliance
  • IEEE standards
  • 2018 IBC / 2020 NEC
  • California Title 24

Publications

Master's Thesis

A Hardware LabVIEW Integration Framework for Real-Time Measurement in Scaled Power Grids

Pradana, O. S. P.

The University of Texas at Austin · UT Electronic Theses and Dissertations · 2025

Designed a custom hardware setup using voltage and current sensors, a resistor board, and NI-9220 DAQ modules to step down voltage from 220V to 10V without using a conventional transformer. Implemented PLL-based control strategy in LabVIEW and PLECS for real-time grid measurement.

Status Published in UT Electronic Theses and Dissertations, The University of Texas at Austin, 2025.

Contribution Solely responsible for the conception, design, and execution of this research. Developed the full hardware setup, implemented the PLL-based control strategy in LabVIEW and PLECS, conducted all experiments, and authored the thesis in its entirety.

LabVIEW Hardware-in-loop Power Grids DAQ
View Publication →
IEEE Conference Paper

Integration Scheme for Electric Vehicles Charging with Modular Substation and Photovoltaic Shelter

Pradana, O. S. P., Jati, D. W., and Facta, M.

2022 International Conference on Technology and Policy in Energy and Electric Power (ICT-PEP) · IEEE · December 2022

Proposed a modular design for EV charging stations utilizing a solar panel shelter to reduce energy drawn from the main power grid. Included simulation development and financial modeling with IRR, NPV, and payback period analysis.

Status Published in IEEE Xplore, 29 December 2022. ISBN: 979-8-3503-1027-6 (Electronic), 979-8-3503-1028-3 (Print).

Contribution Led the conception and design of the integrated EV charging system with modular substation and photovoltaic shelter. Primarily responsible for simulation development, financial modelling including IRR, NPV, and payback period analysis, and authored the majority of the paper.

EV Charging Photovoltaic Modular Substation IEEE
View on IEEE Xplore →
Journal Article

PI Controller Parameter Optimization on Shunt Active Filter Using Genetic Algorithm

Putra Pradana, O. S., Warsito, A., and Handoko, S.

Transient: Jurnal Ilmiah Teknik Elektro · Vol. 3, No. 4, pp. 677–684 · Universitas Diponegoro · 2015

Used a Genetic Algorithm to automatically tune PI controller parameters for a shunt active power filter to improve harmonic filtering and stabilize the power supply. Conceived and designed the full optimization framework and conducted all simulations.

Status Published in Transient: Jurnal Ilmiah Teknik Elektro, Universitas Diponegoro, May 2015.

Contribution Conceived and designed the optimization framework, implemented the genetic algorithm to tune PI controller parameters, conducted all simulations, and interpreted the results. Primary author and responsible for the majority of the analysis and writing.

Genetic Algorithm PI Controller Active Filter Harmonics
View Publication →
Conference Presentation

Strategic Evaluation of Extra High Voltage Substation on Transmission Backbone 500 kV Sumatera Project

Pradana, O. S. P.

CEPSI 2021: The Energy Digicon of Asia Pacific · AESIEAP · Philippines · November 2021

Technical and economic research on extra high voltage substation planning for the 500 kV Sumatera backbone project. Confirmed project viability with IRR of 14.34%, NPV of IDR 3.28 trillion, and B/C ratio of 1.038.

Status Presented at CEPSI 2021, Philippines, November 2021. Certificate of Appreciation received from AESIEAP on 11 November 2021.

Contribution Conducted independent technical and economic research covering reactor configuration evaluation, transformer selection, and financial feasibility analysis for the 500 kV Sumatera backbone project.

500 kV EHV Substation Feasibility AESIEAP

Research Grants & Relevant Awards

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Fulbright Scholarship Program

Fulbright Foreign Scholarship Board · Bureau of Educational and Cultural Affairs, U.S. Department of State · 2023 – 2025

Awarded USD 38,000 per year to pursue a Master of Science in Electrical Engineering at The University of Texas at Austin. Title of Application: Master of Science in Electrical Engineering, The University of Texas at Austin.

USD 38,000/year 2023 – 2025 Scholarship
🎓

George J. Heuer, Jr. Ph.D. Endowed Graduate Fellowship Fund

Cockrell School of Engineering · The University of Texas at Austin · 2024

Fellowship (Donor Code: FHEUR). Awarded USD 1,000 in recognition of academic excellence in graduate engineering studies at the Cockrell School of Engineering.

USD 1,000 2024 Fellowship
🎓

George J. Heuer, Jr. Ph.D. Endowed Graduate Fellowship Fund

Cockrell School of Engineering · The University of Texas at Austin · 2023

Fellowship (Donor Code: FHEUR). Awarded USD 1,000 in recognition of academic excellence in graduate engineering studies at the Cockrell School of Engineering.

USD 1,000 2023 Fellowship
⚙️

Senior Professional Engineer (Insinyur Profesional Madya)

Persatuan Insinyur Indonesia (Institution of Engineers Indonesia) · 2022

Registered as Senior Professional Engineer, Reg. No. 1026-02-052630. Highest professional engineering certification level in Indonesia. Non-monetary professional award recognising senior engineering practice.

Non-monetary 2022 Professional Award
📜

Certificate of Appreciation — CEPSI 2021

Association of Energy Service Industry of East Asia and Pacific (AESIEAP) · November 2021

Received for presenting the paper on strategic evaluation of the 500 kV Sumatera EHV substation project at CEPSI 2021: The Energy Digicon of Asia Pacific, Philippines. Issued 11 November 2021.

Certificate 2021 AESIEAP
🌟

Magna Cum Laude — Bachelor of Science

Universitas Diponegoro · Faculty of Engineering · 2014

Graduated with highest honours in Electrical Engineering with a GPA of 3.76/4.0. Studies funded independently through an achievement-based fee waiver throughout the full undergraduate programme.

Highest Honours 2014 GPA 3.76/4.0

Projects

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Synchronous Condenser PSLF Model Benchmarking

INS Engineering · Linxon El Rio Sol Project

Led development and validation of a 149 MVA synchronous condenser PSLF dynamic model by benchmarking against DIgSILENT PowerFactory. Implemented IEEE 421.5-2016 compliant models (GENQEC, ESAC7C, OEL2C, UEL2C) and generated V-Q capability curves across 15 operating points spanning -88 to +165 MVAr for ERCOT, PJM, and MISO interconnection at 345 kV.

PSLF DIgSILENT SynCon IEEE 421.5
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Barker Energy Center (461 MW) — PSCAD MQT

INS Engineering · Invenergy · Unity Grid Operator · 230 kV

Built equivalent PSCAD model for two synchronous machines with full IEEE dynamic models (GENROU, ESST4B, PSS2B, GGOV1) connected through two MPTs and a 2.90-mile 230 kV line to Cole Substation. Executed five MQT scenarios per Unity requirements: Flat Start, Bump Test, Exciter Voltage Reference tests with and without PSS, and Governor Reference Test. All tests passed and model was submitted for interconnection approval.

PSCAD GENROU MQT 230 kV
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Bighorn Project 40°C (702 MW) — PSCAD MQT

INS Engineering · Kindle Energy LLC · Unity Grid Operator · 500 kV

Performed PSCAD model quality testing for Kindle Energy's 702.409 MW Bighorn project at 40°C ambient. Built model for one synchronous machine with IEEE dynamic models (GENROU, ESST4B, PSS2B, GGOV1), one MPT, and 5.5-mile 500 kV line. Included ambient-specific auxiliary load. All five MQT scenarios passed, confirming compliance at the rated ambient condition.

PSCAD GENROU MQT 500 kV
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Bighorn Project 50°C (595 MW) — PSCAD MQT

INS Engineering · Kindle Energy LLC · Unity Grid Operator · 500 kV

Performed PSCAD model quality testing for Kindle Energy's Bighorn project at the de-rated 50°C ambient condition (595 MW). Built model for one synchronous machine with IEEE dynamic models, one MPT, and a 7-mile 500 kV line. Tuned parameters for elevated temperature de-rating. All five MQT scenarios passed, enabling interconnection approval at both ambient ratings.

PSCAD GENROU MQT 500 kV
♨️

Crystal EGS Project (132.94 MW) — PSCAD MQT

INS Engineering · Invenergy · ERCOT · PJM · MISO · 230 kV

Developed PSCAD electromagnetic transient models for a dual-generator geothermal system with Baker Hughes IEEE models (GENROU, AC7B, PSS2B, TGOV1), three-winding MPT, two GSUs, 5-mile 230 kV and two 1-mile 69 kV lines. Executed five MQT scenarios across ERCOT, PJM, and MISO requirements. Delivered a 35-page test report with full compliance confirmation.

PSCAD Geothermal AC7B ERCOT/PJM/MISO
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El Sol Dos II BESS (150 MW) — PSCAD MQT

INS Engineering · Invenergy · Arizona Public Service · 69 kV

Built PSCAD model for 169 Tesla Megapack 2XL inverters connected through 43 GSUs, a three-winding MPT, and 0.3-mile 69 kV line to APS El Sol Substation. Ran ten MQT scenarios in both discharging and charging modes including balanced and unbalanced fault ride-through, HVRT, LVRT, SCR testing at 1.2 to 5.0, and phase angle change tests. All twenty test cases passed for APS compliance.

PSCAD Tesla Megapack BESS APS
♨️

Grand View EGS I (265.88 MW) — PSCAD MQT

INS Engineering · Invenergy · Unity Grid Operator · 230 kV

Developed PSCAD model for a four-machine geothermal facility with Baker Hughes IEEE models (GENROU, AC7B, PSS2B, TGOV1), one three-winding MPT, four GSUs, a 35-mile 230 kV line, and four 1-mile 69 kV collector circuits to Hemingway Substation. All five MQT scenarios passed across all four generators simultaneously, enabling interconnection approval for this enhanced geothermal facility.

PSCAD Geothermal AC7B 230 kV
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Iron Peak Energy Center (706 MW) — PSCAD MQT

INS Engineering · Invenergy · Unity Grid Operator · 500 kV

Built PSCAD model for a combined-cycle plant with one combustion turbine and one steam turbine (GENROU, ESST4B, PSS2B, GGOV1) connected through two MPTs and a 1.10-mile 500 kV line to Mayfield Substation. Executed five MQT scenarios confirming fault ride-through, excitation control, and governor response for the combined-cycle configuration at Unity 500 kV requirements.

PSCAD Combined-Cycle GGOV1 500 kV
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Linxon Microgrid — Austin Data Center

INS Engineering · Linxon · Austin, TX

Built a comprehensive PSCAD microgrid model for a data center including a gas turbine generator, grid-forming BESS, and synchronous condenser with AI-varying loads. Ran 11 test scenarios covering base case (with and without Syncon overlay), 3LG faults at multiple buses, switching events, and GTG ramp tests at 60 to 100 MW. Confirmed system resilience under fault and loss-of-generation conditions for critical data center operations.

PSCAD Microgrid Grid-Forming BESS Data Center

Tonopash Sands Energy Center (729 MW) — PSCAD MQT

INS Engineering · Invenergy · Unity Grid Operator · APS · 500 kV

Built PSCAD model for two synchronous machines (GENROU, ESST4B, PSS2B, GGOV1) connected through two three-winding MPTs and a 9-mile 500 kV line to the APS Delaney-Sun Valley Substation. Executed five MQT scenarios confirming compliance for both generators simultaneously. All tests passed for Unity interconnection submission.

PSCAD GENROU MQT APS 500 kV
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Whispering Sands Energy Center (1,507 MW) — PSCAD MQT

INS Engineering · Invenergy · Unity Grid Operator · APS HANG2 · 500 kV

Built PSCAD model for four synchronous machines (GENROU, ESST4B, PSS2B, GGOV1) connected through four three-winding MPTs and two 0.1-mile 500 kV lines to the APS Hassayampa-N. Gila #2 Substation. One of the largest PSCAD MQT projects completed, with all five scenarios passing simultaneously across all four generators for Unity submission.

PSCAD GENROU MQT APS 500 kV

Indie Power Plant Controller PSSE UDM

INS Engineering · Dec 2025 – Mar 2026

Developed a Fortran User Defined Model in PSSE to manage active and reactive power for up to 4 downstream inverters. Added control loops for frequency support, ramp rate, and AVR with line drop compensation and droop control.

Fortran PSSE UDM AVR
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Governor UDM Benchmarking

INS Engineering · Nov 2025 – Feb 2026

Moved a governor control model from MATLAB/Simulink into PSCAD for Utility Innovation Group. Benchmarked results against DIgSILENT PowerFactory to confirm accuracy for generator frequency, speed, active/reactive power, and terminal voltage.

PSCAD MATLAB DIgSILENT Benchmarking
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ETAP Power Plant Controller UDM

INS Engineering · Dec 2025 – Jan 2026

Wrote Fortran code to build a Power Plant Controller UDM for ETAP, managing ICON, CON, STATE, and VAR modules to compile a working DLL. Ran detailed model quality tests for flat starts, voltage and frequency step-downs, and short-circuit ratio conditions.

Fortran ETAP UDM DLL
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Stargate Data Center BESS

INS Engineering · Sep 2025 – Oct 2025

Built custom battery energy storage models (Classical and Hysteresis Shepherd) in PSCAD for a Texas data center. Created a control system to manage state of charge and meet ERCOT's strict 0.333/s ramp rate limit during a 261-second dynamic load cycle. Cross-checked all results with MATLAB/Simulink.

PSCAD BESS ERCOT MATLAB
☀️

B&K Solar Project (74.9 MVA)

INS Engineering · Sep 2025

Dynamic modeling for a solar project connecting to Duke Energy's 230 kV grid using Sungrow inverters in PSSE v35. Ran 15 test cases including 3-phase faults, unbalanced faults, and ride-throughs across different system strengths (SCR 2.5 and 20).

PSSE Sungrow Solar Duke Energy
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Pioneer Solar Project (150 MW)

INS Engineering · Sep 2025

MISO compliance testing for a solar plant in PSSE, focusing on model stability under weak grid conditions down to SCR of 2. Adjusted inverter controllers (REGCA, REECA, REPCA) to stop voltage oscillations during low voltage ride-through tests.

PSSE MISO REGCA REPCA
⚗️

Lithium-Ion Battery Benchmarking

INS Engineering · Aug 2025

Built and tested custom lithium-ion battery models in both MATLAB/Simulink and PSCAD, scaling from single cells to large multi-cell arrays. Achieved only 0.08% difference between models — well below the standard 1.64% library deviation.

PSCAD MATLAB Li-Ion Benchmarking
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Western Gate Renewable (500 MW)

INS Engineering · Jul 2025 – Aug 2025

Modeled a 6-branch renewable project (solar, wind, and battery) for Pattern Energy in PSSE, including lines, transformers, and generator impedances. Identified a reactive power shortage on the wind branch and added capacitor banks for independent operation.

PSSE Wind Solar BESS
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LabVIEW Hardware Integration Framework

UT Austin · Master's Thesis · 2025

Developed a novel hardware-LabVIEW framework for real-time measurement in scaled power grids. Stepped down 220V to 10V using custom sensors and a resistor board — removing the need for a conventional transformer. Implemented PLL-based control in LabVIEW and PLECS.

LabVIEW Hardware-in-loop DAQ PLECS
📊

Time-Domain Power Quality & Harmonics

UT Austin · Jan 2025 – Apr 2025

Developed time-domain solutions for switching transients, resonance, and inverter harmonics. Designed filters that reduced Total Harmonic Distortion by 65%.

Harmonics Power Quality Filter Design THD
🚗

Supercharger Design (Ehrenberg, AZ & Manteca, CA)

Tesla · May 2024 – Aug 2024

Drafted layouts for 16 V3/V4 Supercharger posts in AutoCAD following 2018 IBC and 2020 NEC codes. Engineered a California Title 24-compliant 16-post site. Saved $40k by adjusting switchboard and wiring plans. Cut drafting time by 33% using automated load calculations.

AutoCAD NEC EV Infrastructure Tesla
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HV/EHV Substations & Transmission (PLN)

PT PLN (Persero) · Aug 2016 – Jul 2023

Managed engineering design, field supervision, and commissioning for over 20 high-voltage (150 to 500 kV) substation and transmission projects across Sumatra. Expanded grid capacity by 28% serving 25 million users. Delivered the first 150 kV underground cable in Riau Province.

150 kV 500 kV Transmission Substation