FERC provided guidance to Western electricity sellers on how and when to seek exceptions for transactions that exceed the region’s $1,000/MWh soft cap.

Arizona Public Service (APS) can continue to charge market-based rates in Tucson Electric Power’s balancing authority area, FERC ruled.

FERC accepted transmission calculations submitted by Southwestern transmission-owning utilities in support of their requests for market-based rates.

Tucson Electric could become the latest Western utility to lose authorization to sell electricity at market-based rates within its balancing authority area.