Often, during a widespread outage, loss of service is caused by damage to substations or major transmission
lines or towers. Damage to these types of infrastructure components can affect
thousands or even tens of thousands of customers at a time. However, hundreds or thousands
of other storm-related outages may be more localized, occurring, for instance, when branches fall
on distribution lines that might serve anywhere from one to a handful of customers each. During a large-scale
power outage, customers can be affected by one problem (for instance, substation damage) or
by a combination of problems (for instance, substation damage and a downed service line).
All problems affecting a customer must be corrected before their electricity can be restored.
CWLP uses a three-phase, prioritized service restoration plan that is designed to ensure power can be restored to the greatest number of customers with the greatest possible speed.
1. Even while damage assessment is still being done,
our line crews get busy repairing downed or broken high-voltage
transmission lines that provide power to our substations,
as well as any damages that might have occurred to the substations
themselves. Focusing on repairing these facilities allows us to restore
power to the largest number of customers in the quickest possible time.
Also as part of Priority 1, we concentrate on infrastructure repairs that
will ensure the restoration of power as quickly as possible to frontline
public health and safety providers, including hospitals and police and fire stations.
2. As soon as is feasible, we begin focusing our efforts on
restoring power to facilities that provide needed public services.
Such facilities include critical state and federal government agencies,
sewage pumping stations, and schools or other buildings that can be used
as shelters for customers who are still without power.
3. During priority phases 1 and 2, power will typically be
restored to a large percentage of all customers affected by the initial outage.
However, damage to transformers, poles, and distribution and tap lines that serve small
areas can leave clusters of outages (of anywhere from one to a few dozen customers each)
scattered throughout the city. In the Priority 3 phase, we concentrate on
restoring power to these customers. These "localized" pockets of damage are usually
the most difficult and time-consuming to deal with.