California now finds it necessary to shut parts of the state-wide electricity grid down where and when high winds, power lines and dry vegetation threaten to cause wildfires.  Prompted by wildfire experience and anticipating further and more severe wildfires, an energy resilience conversation is beginning in California.  Energy resilience is the ability to restore energy supplies quickly even when they are severely disrupted.  High levels of energy resilience minimize costs and economic dislocation in the wake of natural disasters. Energy resilience is made possible by on-site and community based electricity sources producing energy commodities that community choice providers, microgrids and nanogrids collect to meet site and local demand. The figure below shows bulk energy supplementing locally produced energy supplementing energy produced on site.

Integrated Regional Energy System

Integrated Regional Energy System