On October 18, 2018, FERC accepted Southwest Power Pool's
("SPP") tariff revisions to implement a major maintenance
cost component for mitigated start-up offers and mitigated no-load
offers. FERC found SPP's proposal to be a just and
reasonable means of addressing concerns over the recovery of costs
resulting from the gradual deterioration of resources'
operating equipment in the SPP Integrated Marketplace.
On May 15, 2018, as amended on July 12, 2018, SPP filed its
proposed tariff revisions. In doing so, SPP explained that
the operation of a resource results in gradual deterioration of
equipment and therefore requires maintenance to sustain the
resource's ability to operate. SPP added that the
proposed tariff revisions would allow market participants to
include major maintenance costs associated with the number of unit
starts and run hours in a generating resource's mitigated
start-up and no-load offers, respectively. SPP also stated
that major maintenance costs
