Solar Wind Turbine Hybrid System with Battery-Supercapacitor as storage system

PROBLEM STATEMENT About 80% of the global energy supply depends on fossil fuels including coal, oil and gas. Consider that if fossil fuel demands increases, side effects toward the globe are bound to escalate. Hence, to acquire solution to this problem, alternative energy sources are needed to be urgently developed […]

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Solution for product out-breathing and in-breathing in atmospheric tanks

PROBLEM STATEMENT In the process of filling or emptying an atmospheric chemical storage tank, it is important that adequate ventilation points are provided at the top of the roof tank to discharge or collect air. During the process of filling a tank with liquid, displacement of air inside the tank occurs, […]

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Indonesia’s Electricity Systems – Sumatera Interconnected System

The Sumatera interconnected system is the second largest electricity network in Indonesia, second only to the Jawa-Madura-Bali (JAMALI) grid, and covers the entire Sumatera mainland. At a Glance Operational systems: Sumatera Bagian Utara (SUMBAGUT) Sumatera Bagian Selatan & Tengah (SUMBAGSELTENG) Operating voltages: 275kV, 150kV, 70kV, 20kV, 0.4kV Number of customers: […]

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