SPP says it is devoting significant resources to finally resolve Attachment Z2, a bone of contention among SPP stakeholders since 2016 -- by the end of this decade.

The 8th U.S. Circuit Court of Appeals denied review petitions by several SPP members over FERC's rejection of generators’ rehearing requests seeking compensation under tariff Attachment Z2.

The D.C. Circuit Court of Appeals has dismissed a review petition filed by petition by Xcel Energy and Kansas Electric Power Cooperative over FERC’s rejection of their rehearing requests related to SPP’s filed rate doctrine.

FERC rejected four separate rehearing requests related to SPP’s revenue credits under Attachment Z of its tariff.

FERC partially granted three complaints filed by members against SPP related to its revenue crediting process under Attachment Z2 of its tariff.

FERC rejected a pair of separate rehearing requests by SPP members related to the RTO’s assignment of network upgrade charges under tariff Attachment Z2.

The D.C. Circuit backed FERC's reversal of a waiver over SPP transmission upgrade costs, even though it resulted in a “free pass” for some system users.

FERC approved SPP’s proposal to eliminate revenue credits for sponsored transmission upgrades under Attachment Z2 and replace them with incremental long-term congestion rights.

SPP’s Board of Directors approved the first two revision requests stemming from the Holistic Integrated Tariff Team’s work.

SPP CEO Barbara Sugg assured stakeholders the RTO is taking careful steps to reopen while the pandemic still rages, making clear it will be a slow process.