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What are Microgrids?

Microgrids are small-scale, low-voltage power systems that incorporate various distributed energy sources, storage devices, and controllable loads. They can operate while connected to the main power network or independently as an "islanded" system, all in a controlled and coordinated manner. Essentially, a microgrid is a self-sufficient energy system that serves a specific geographic area, such as a college campus, hospital complex, business centre, or neighbourhood.


Within a microgrid, you'll find one or more types of distributed energy sources, such as solar panels, wind turbines, combined heat and power systems, or generators, which produce the power needed. Additionally, many modern microgrids are equipped with energy storage capabilities, often in the form of batteries. Some microgrids also feature electric vehicle charging stations.

It's important to note that a microgrid differs from a conventional minigrid commonly used for village electrification projects, as it allows for controlled management of energy sources and loads. It represents a comprehensive solution that combines both the generation and utilization of solar electricity.

Microgrids consist of multiple energy resources, some independent and others controllable. These include solar and wind generators, which are mainly independent and intermittent, as well as fossil fuel generators (such as diesel or gas), battery storage, thermal storage, hydrogen generators, controllable loads (both short-term and long-term), and other miscellaneous loads.

In the case of a rural microgrid, the following loads can be combined:

  • Mini cold storage

  • Ice plants

  • Milk chillers

  • Water purifiers

  • Water pumping for small-scale irrigation

  • Battery charging for electric farm machinery and transportation

  • Communication systems

Most of these loads are flexible and can be controlled as needed.

When connected to the main grid or embedded within it, a microgrid appears as a single, steady load or source to the overall network. Any fluctuations or disturbances that occur are typically contained within the microgrid itself. In the event of a disruption in the main grid, a microgrid has the ability to isolate and operate autonomously. Microgrid designs generally prioritize the maximization of local generation from renewable sources.

In summary, microgrids are sophisticated energy systems that provide localized power and enhance resilience by utilizing distributed energy sources, storage, and controllable loads. They can operate connected to the main grid or independently, ensuring reliable and sustainable energy supply for specific areas or communities.

For more information about Microgrids please refer to this article: What is a Microgrid?

Oztron Energy offers specialized services for Microgrids. These include:

  • Feasibility

  • System Design, Detailed Design and Optimization

  • Steady-state and Dynamic modelling

  • Control System Design

  • Approvals and certifications

  • Supply of critical components like battery storage, controllers, electrical switchgear, communication systems

  • Construction, as required

  • Commissioning

  • On-going Maintenance and Management

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