PLC (Peak Load Contribution)

The Peak Load Contribution is a customer's average metered demand across PJM's five coincident peak hours of the prior summer. It is recalculated once a year and applied for the delivery year that starts June 1. Suppliers pass capacity costs through as PLC times the capacity rate, so a lower PLC means a lower bill every month for twelve months. The only way to move it is to use less power during the five hours that end up counting.

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