Price an outage in dollars, not customer-minutes. Drop in customers served, current SAIDI, cost per customer-hour, and a target SAIDI; get the annual cost, savings per minute improved, and the business case for hitting your target.
Total outage hours = (SAIDI / 60) × customers. Annual cost = total outage hours × cost per customer-hour. The cost per SAIDI minute tells you what every minute of outage costs your customers, and the savings rows show what hitting a target SAIDI is worth in dollars.
For the full economic case (VOLL ranges, ROI math, deferred capital), see Part 06 · The $10M SAIDI improvement.