EPA received comments on its proposal to regulate greenhouse gases from power plants, with some, including ISO/RTOs, arguing the proposal needed major improvements to preserve reliability.

The cost estimate for MISO’s and SPP’s package of 345-kV lines meant to facilitate the interconnection of generation at the seams has nearly doubled, the RTOs have said in the past week.

At Infocast’s Transmission & Interconnection Summit, experts said interconnection requests continue to grow and grid operators have tried to keep pace.

FERC has approved SPP’s tariff revisions to its transmission planning process that establish new study processes for transmission-owning members.

Kansas regulators have granted a siting permit for NextEra Energy Transmission's Wolf Creek-Blackberry project, clearing the way for construction to begin.

Texas regulators rejected SWEPCO's application to build renewable generation resources at the site of a coal plant that ceased operations in March.

SPP and MISO plan to draft a white paper on rate pancaking and unreserved use, two issues that bedevil utilities along the RTOs’ seam.

FERC denied a solar farm developer’s tariff waiver request and a complaint against SPP over the RTO's interconnection studies for the planned facility.

SPP says it expects “normal” summer operations in its balancing authority and reliability coordinator areas this summer, despite a projected drought.

FERC accepted an unexecuted facilities service agreement between SPP, Southwestern Public Service and Ponderosa Wind, finding it to be just and reasonable.