Muhammad Refansa Annaafi

Final-year Electrical Engineering Student At Universitas Indonesia

See my portfolio Muhammad Refansa Annaafi

Work Experience

A concise overview of my hands-on engineering experience in power systems, SCADA operations, monitoring, and control.

SCADA & Grid Operations Intern — PT PLN UP2B JAKBAN

Supported the engineering team in troubleshooting issues across three substations and assisted in IEC telecommunication protocol migration to improve system reliability and control stability.

Produced technical reports and recommendations related to telecommunication security, control system stability, and power fluctuation analysis.

  • SCADA
  • Grid Operations
  • IEC Protocol
  • Technical Reporting

Projects

For now, I am highlighting two core projects. More projects can be added later using the same card structure.

PIMNAS 2025 Finalist — Fotrix Solar-powered IoT Seawater Reactor

Developed a portable solar-powered IoT reactor for green hydrogen production from seawater while degrading pollutants. The system integrates ESP32-based monitoring, sensors, solar tracking, embedded control, and a real-time dashboard.

Achieved 1.3 g hydrogen production in 205 seconds and 98% pollutant degradation in 4 hours, demonstrating strong potential for renewable-energy and environmental applications.

  • PIMNAS Finalist
  • ESP32
  • Solar Energy
  • IoT Monitoring
  • Green Hydrogen

Smart kWh Meter with Automated Load Shedding

Built an end-to-end IoT smart energy system using ESP32, Firebase, MQTT, and Flutter for real-time energy monitoring and remote control of multiple electrical loads.

Implemented LSTM-based electricity cost prediction and anomaly detection to help users anticipate bills, identify unusual usage, and improve energy efficiency.

  • ESP32
  • Firebase
  • Flutter
  • MQTT
  • LSTM

Skills

Embedded Systems & IoT

ESP32, sensors, BLE, WiFi monitoring, Firebase, MQTT, Arduino IDE, embedded control, and real-time monitoring systems.

Automation & Power Systems

SCADA fundamentals, IEC telecommunication protocol support, load control, smart energy systems, and grid-operation awareness.

Data & Analysis

Data analysis, forecasting, LSTM prediction, anomaly detection, calibration, system evaluation, and technical reporting.

Tools & Development

Flutter, Firebase, Python, Arduino IDE, hardware integration, dashboard design, documentation, and collaborative engineering workflows.