Interdependent critical infrastructure and generation assets tend to cluster around communities (i.e., load centers) and can be combined to be served by a Resilient Community Grid as shown in the graphic above.
Resilient Community Grids can support facilities on either the transmission or distribution grid including at transmission voltages. Microgrids, by contrast, are typically connected through Points of Common Coupling only to the distribution network at lower voltages. Microgrids within a community, however, can be embedded within a Resilient Community Grid.
Resilient Community Grids provide several unique security advantages:
The potential for a layered defense goes even deeper than the regional grid and a Resilient Community Grid. It could also include microgrids within the Resilient Community Grid as well as hardening of facilities, especially critical infrastructure, served by the Resilient Community Grid.
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