Pinnacle West Capital is poised to move forward with its own clean energy plans after Arizona voters rejected Proposition 127.

CAISO said Monday its Western Energy Imbalance Market has produced more than a half-billion dollars in benefits for participants since its founding five years ago, including more than $100 million in benefits in the third quarter of 2018.

The Western Energy Imbalance Market saw financial benefits soar to a record $71.2 million in the second quarter, according to a CAISO report.

CAISO and PacifiCorp reaped the majority of the Western Energy Imbalance Market’s $42.1 million in gross benefits during the first quarter (Q1 2018).

FERC upheld a previous ruling covering Order 1000 cost allocation in the WestConnect planning region, adding further explanation of its reasoning.

Pinnacle West Capital, parent of APS, earned $276 million ($2.46/share) in the third quarter, compared with $263 million during the same period in 2016.

CAISO hauled in the largest share of the $39.52 million in benefits produced by the EIM during the second quarter.

Salt River Project signed an agreement with CAISO that puts the utility on track to join with the Western Energy Imbalance Market (EIM) in April 2020.

Arizona Public Service expects to meet its future energy needs through increased use of natural gas and solar, while reducing coal reliance.

The unpredictability of cloud cover, which can cause sharp and sudden drops in solar production, creates a challenge for load forecasting in the EIM.