Quantifying Resilience Value of Solar plus Storage in City of Reno

This paper summarizes the development and implementation of resilience valuation metrics for solar plus storage in the City of Reno. The proposed resilience valuation metrics are intended to assist local governments, policy makers, and building owners in making well-informed decisions and plans for resilience enhancement of power supply. The valuation metrics are developed based on historical data of extreme events, historical outage data, cost of outages, and classifications of critical loads to determine the likelihood, expected duration, and average cost of outages. Events that last for less than 24 hours are not considered in developing metrics for resilience valuation. The proposed approach enables resilience valuation based on selected parameters such as sites, types and characteristics of critical loads, and size of solar and energy storage systems. The ten regions in the continental United States and territories identified by the Federal Emergency Management Agency (FEMA) are used to classify types of extreme events at different locations. Although resilience value of solar plus storage alone may not justify investments in some resilience enhancement projects, the stacked value (resilience value, revenue, avoided costs, etc.) of solar plus storage during their lifetime will be an important measure in weighting different investment alternatives. The proposed resilience valuation approach is demonstrated on a Public Safety Center in City of Reno.