Most executive engineers managing transformer fleets are quick to acknowledge that certain of that fleet would be classified as ‘strategic’ assets to their company. They would readily agree that the unforeseen loss of such strategic assets would be a calamity but then the interesting conversation begins. When asked to articulate the likely cost of that impact to the business most would cite an approximate figure for the transformer replacement cost but begin to pale when asked next to articulate the cost to the business beyond the value of the asset itself. Perhaps a ‘well it depends…’ statement could be expected but few really have worked it through in reality to the extent that the true likely impacts sit at their fingertips, nor by corollary, at their top of mind.