
This document describes the networking architecture, communication logic, and operation and maintenance (O&M) methods of the commercial and industrial (C&I) on-grid energy storage solution, as well as the installation, cable connection, check and preparation before power-on, system power-on commissioning, power-of, and power-on operations. [pdf]

The definition of mobile substation or portable substation is a completely self-contained trailer-mounted substation consisting of a transformer, cooling equipment, high voltage switchgear, and low voltage switchgear along with metering, protection relaying devices, AC and DC auxiliary power supply, surge protection, and cable connecting arrangement. [pdf]
Industrial power supply systems: Mobile substations can provide a reliable and secure power supply for industrial plants that require high power quality, availability, and efficiency. They can also provide backup power or load sharing for critical processes, such as oil and gas production, mining operations, chemical plants, etc.
They are pivotal in ensuring a reliable power supply during emergencies, maintenance, or in remote areas. By housing all necessary components within a portable framework, mobile substations offer flexibility, cost-effectiveness, and rapid deployment, making them ideal for a range of applications, from disaster recovery to temporary power support.
Cable connecting system: The cable connecting system is the component of a mobile substation that connects the mobile substation to the power source and the load using flexible cables and connectors. The cable connecting system has to be designed to provide easy and secure connection and disconnection of the cables.
Temporary mobile substations are deployed when there is a planned interruption or maintenance of existing substations, or when new construction or power upgrades are underway. These substations prevent service interruptions by taking over the role of the permanent substation for a specific time frame.
Metering system: The metering system is the component of a mobile substation that measures and records the electrical parameters of the power flow, such as voltage, current, power, frequency, etc. The metering system has to be designed to provide accurate and reliable data for monitoring and billing purposes.
The switchgear enables the routing of electricity within the substation and allows isolation of faults without affecting the entire system. Modular switchgear solutions in mobile substations support multiple configurations, ensuring compatibility with varying power systems.

This project, developed by Vietnam Electricity (EVN) in collaboration with the Asian Development Bank (ADB), Rocky Mountain Institute (RMI), Global Energy Alliance for People and Planet (GEAPP), and the Vietnam Energy Institute, marks a crucial step towards Vietnam’s target of developing 300MW of energy storage by 2030, as outlined in the latest Eighth Power Development Plan (PDP 8). [pdf]

The first battery, Volta’s cell, was developed in 1800. 2 The U.S. pioneered large-scale energy storage with the Rocky River Pumped Storage plant in 1929. 3 Energy storage research accelerated dramatically 2 after the 1970s oil crisis, 4 driving significant improvements in battery cost and performance. 5 Energy storage is a critical component for current and future sustainable energy grids. 6 [pdf]
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