39 7. EVALUATING OVERALL PROGRAM SUCCESS After establishing a potential resiliency program objective, how a resiliency program can support the pursuit of the objective, how to create a resiliency program, developing the resiliency program plan, obtaining approval, implementation, and reporting program progress, the next step in the Utility Infrastructure Resiliency Playbook (Playbook) is evaluating overall program success against the original program objective. This step is critical to ensuring the prudency, reauthorization, and continuation of the resiliency efforts, and is built on efficient data gathering and reporting. Data Gathering & Reporting The objective of this step is to confirm the results of the resiliency program. As is described in Step 6 REPORTING PROGRAM PROGRESS, because these programs are designed to reduce outage duration or frequency, this cannot be fully tested until an outage condition takes place. In addition, because this type of resiliency program is highly targeted geographically, the reviewing of overall system performance to observe the impact of a targeted resiliency program is often muted or invisible. In the case of Florida Power & Light as described in CASE STUDY III – LEGISLATIVE PATH APPROVAL, a resiliency program focused on both hardening and undergrounding strategies was monitored for implementation progress by the Florida Public Service Commission (FPSC) for 10 years until the 2016/2017 storm year when the efforts demonstrated significant impact: The length of utility power outages was reduced from the baseline 2004-2005 storm season. o 50% (two million) customers restored in 24 hours versus five days in previous storms. o Reenergized all substations in 24 hours versus five days in previous storms. Hardened and undergrounded distribution facilities performed better than non-hardened facilities. o 546,000 customer interruptions avoided with smart grid switches. Power outages primarily resulted from falling trees, vegetation, and debris from outside the utility’s rightof-way. o Replaced only 4,600 damaged poles versus 12,400 in previous storms. Given the likelihood that significant outages may not occur every year, the collection of routine implementation data is necessary to demonstrate forward progress. The type of routine data collection might include the following (#251): Annual total spend versus budget or maximum allowable Line mileage addressed versus plan Number of lines addressed versus plan Cost per mile versus plan or maximum allowable Cost per customer versus plan Ratepayer impact per 1000 kWh
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