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OFGEM

Determination- Outage Cost Adjusting Event for 2019-20

The Gas and Electricity Markets Authority (the “Authority”) has considered the Notice submitted by National Grid Electricity System Operator Limited (NGESO) under Part B of SpC 4J on 28 April 2020. The Notice sets out the proposed income adjustment for 2019-20, resulting in £894,640.04 of outage change costs and £1,473 of total commercial operational services costs being incurred.

This letter sets out our determination of the allowed outage cost adjustment (IONTt) value for 2019-20 of (minus) -£2,193,366.16 as proposed by NGESO. This is the reduction in NGESO allowed revenue as the outage cost adjusting event.