Island Microgrid Policy

Are island microgrids a viable solution?

Island microgrid (IM) systems offer a promising solution; however, optimal planning considering diverse components and alternatives remains challenging. Using China's Yongxing Island as a case study, we propose a novel indicator system integrating economic, resilience, energy, and environmental dimensions.

What is an island microgrid (IM) system?

Through the use of an island microgrid (IM) system, local energy resources which islands are usually rich in, e.g., wind and solar, can be utilized more efficiently. Integrating local energy resources, not only reduces the cost of the IM system [ 8] but also enhances post-fault reliability for local consumers.

What are Island-based microgrids?

Island-based microgrids are opportunities to increase access to electricity for areas with underserved electricity needs. The systems are also ways to provide baseload and reliable electricity for regions that have consistently lacked reliable electricity.

How do mainland microgrids work?

Mainland microgrids disconnect and connect to the main grid without problem. In effect, they may operate in island-mode, without regard to other physical connections. These microgrids provide support to the main grid as backup during natural disasters. Microgrids on islands can also become part of a larger grid and add resilience.

What happens if a microgrid is grid-connected?

If the microgrid is grid-connected (i.e., connected to the main electric grid), then the community can draw power from the main electric grid to supplement its own generation as needed or sell power back to the main electric grid when it is generating excess power.

How can Island microgrids be managed optimally?

Overall, the paper presents a comprehensive approach to the optimal management of island microgrids. The approach involves reducing losses and pollution, and improving voltage while maximizing the use of renewable resources.