If you measure the cost of an outage only by how long the asset is unavailable, you are looking at just part of the problem.
In transmission, the direct impact shows up in the variable portion of the revenue, falling short of what was projected. In generation, it shows up in the energy that is not produced while the asset is down.
Those are the costs that make it onto the balance sheet. What is usually left out is the effort required after the event.
Every outage takes hours of work drafting reports, defending the case before the parties involved and replacing the resources used during the event.
The impact does not end when the asset comes back, it carries on into the operation.
Where preparation is inadequate, the response to the outage makes the problem worse, whether through a lack of resources, procedures or crew capability, and unavailability lasts longer as a result.
And from the moment a forced outage occurs, the impact is direct: lost revenue and the risk of contractual penalties.
Decisions driven only by immediate O&M cost reduction tend to increase exposure to unplanned outages and their effects.
In the power sector, the distinction is objective: planned outages are part of the operation; unplanned outages point to failures in preparation, structure or execution.
At Cotesa, we approach this with a focus on predictability, structuring the operation so that outages happen as planned, with control over time, resources and impact.
