Island Microgrid Development

What are the island microgrids?

Table 1. Summary of the island microgrids. Recently, three unique stand-alone microgrid projects have been built at Dongfushan Island, Nanji Island, and Beiji Island in the east China, with an aim to replace diesel with renewable energy to improve renewable energy utilization, enhance power supply reliability, and reduce power supply cost.

Where are microgrids found?

Microgrids are more likely found on physical terrestrial island nations because typically islands in the tropics have relied on diesel as a fuel source for power. On islands, microgrids have become testbeds to integrate higher shares of variable renewable energy options, such as solar photovoltaic electricity or wind power.

What is a microgrid & how does it work?

A microgrid is a group of interconnected loads and distributed energy resources that acts as a single controllable entity with respect to the grid. It can connect and disconnect from the grid to operate in grid-connected or island mode. Microgrids can improve customer reliability and resilience to grid disturbances.

What technologies are used in Island microgrids?

Key technologies such as control technology and energy management for island microgrids are studied. Renewable energy penetration is discussed for the design and operation of island microgrids. The operation data for a year of the three island microgrids are analyzed from various aspects.

What is the Maui Island microgrid?

The Maui Island microgrid is built on the island of Hawaii . A 10 MW lithium-ion-based battery energy storage system (BESS) is designed to maintain the load frequency control by dispatching regulating reserves of active power to a 91 MW test section of the Maui Island grid model with WT of 30 MW.

Do Island microgrids work in the East China Sea?

Three representative island microgrids in the East China Sea are demonstrated. Key technologies such as control technology and energy management for island microgrids are studied. Renewable energy penetration is discussed for the design and operation of island microgrids.