Talen Energy’s proposal to buy more than 2.5 GW of generation from Energy Capital Partners will lead to a more concentrated PJM market and greater market power for the fourth largest generator in the RTO, the Monitor said in comments filed with FERC.

FERC approved Constellation's purchase of Calpine, which will create an even bigger IPP with nearly 60 GW around the country, with the biggest share of that in PJM.

FERC took the rare step of formally noticing potential discussions with DOJ anti-trust officials over Alabama Power's proposed purchase of a Tenaska power plant.

Constellation and Calpine proposed selling off several PJM power plants in their merger application with FERC to quell any concerns with market power in some submarkets.

A lower court found Duke was just competing for business, but the appeals panel of three judges has open questions on whether market power was abused.

FERC granted Nevada Power an exemption simplifying the NV Energy subsidiary’s filing of its triennial updated market power analysis.

Top officials discussed CAISO’s handling of California’s mid-August blackouts and actions to avoid future shortages in a webinar.

FERC found Idaho Power had satisfied standards for market-based rate authority and terminated a proceeding it had ordered to find out if the utility was exercising market power in its BAA.

FERC reaffirmed its conclusion that the results of ISO-NE’s 2013/14 Winter Reliability Program were just and reasonable despite the fact that the largest participants may have had market power.