The speed of disruptive innovation in the electricity sector has been outpacing regulatory and utility business model reform, which is why they now sometimes feel in conflict. That disruptive innovation is only accelerating. RMI’s recent report,The Economics of Grid Defection: When and where distributed solar generation plus storage competes with traditional utility service, sets a timeline for utilities, regulators, and others to get ahead of the curve and shift from reactive to proactive approaches. Becoming proactive and deliberate about the electricity system's transformation, and doing so ahead of any fundamental shifts in customer economics, would enable us to optimize the grid and make distributed technologies the integral and valuable piece we believe they can and should be.
When RMI issued The Economics of Grid Defection three weeks ago, our intent was to stretch the conversation among electricity system stakeholders by looking out far enough in the future to discern a point where the rules of the system change in a fundamental way. We used the best available facts to explore when and where fully off-grid solar-plus-battery systems could become cheaper than grid-purchased electricity in the U.S., thus challenging the way the current electricity system operates. Those systems, in fact, don’t even need to go fully off grid. The much less extreme but perhaps far more likely scenario would be grid-connected systems, which could be just as or even more challenging for electricity system operation and utility business models.
The takeaway is this: even under the fully off-grid scenarios we modeled, we have about 10 years—give or take a few—to really solve our electricity business model issues here in the continental U.S. before they begin compounding dramatically. The analysis also suggests we should carefully read the “postcards from the future” being sent from Hawaii today, and take much more interest in how that situation plays out as a harbinger of things to come.
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