What is defined as a microgrid?

According to the Department of Energy (DoE), a microgrid is defined as 'a group of interconnected loads and distributed energy resources within clearly defined electrical boundaries that acts as a single controllable entity with respect to the grid'. This definition outlines a microgrid as a self-contained system capable of operating independently from the main power grid or in parallel with it.

How many microgrids are there?

In the US, there are 160 microgrids, according to the Center for Climate and Energy Solutions. Alaska, Texas, New York and California are some of the seven states where these are mostly based. India also has 160 microgrid solutions across four states, according to Hive Power, a Swiss smart grid specialist. More than 80% of these are solar powered.

What are the different types of microgrids?

There are three main types of microgrid. Remote microgrids – also called ‘off-grid microgrids’ – are set up in places too far away to be connected to the main electricity grid. These generally run on renewable energy, like wind or solar power, and are permanently in island mode.

Can microgrids bring electricity to all?

Most generate their own power using renewable energy like wind and solar. In power outages when the main electricity grid fails, microgrids can keep going. They can also be used to provide power in remote areas. A nun in the Democratic Republic of Congo is showing the world how microgrids can bring electricity to all.

What is the difference between grid connected and networked microgrids?

Grid-connected microgrids have a connection to the main grid, but can switch away from this if there are power supply issues, for example. Networked microgrids are groups of microgrids that are connected together to serve a wide geographic area, like a community or city.