SPP filed bylaw amendments at FERC to place seven Western entities under its tariff that, if approved, will make the RTO the first grid operator with markets in both major interconnections.

SPP says two announcements by the Western Area Power Administration and Basin Electric Power have rounded out the group of seven western utilities that plan to pursue membership in its Western Interconnection RTO market.

Colorado utility Platte River Power Authority is the latest Western utility to express intent to evaluate participation in SPP's RTO West.

SPP’s Board of Directors approved stakeholders’ recommendation to issue a notification to construct a 345-kV double-circuit transmission project in New Mexico.

SPP said it plans to close its Western Energy Imbalance Service, with members joining either its proposed Markets+ program or its Western RTO.

Gov. Jared Polis joined stakeholders at COSSA's Solar Power and Energy Storage Mountain West Conference to discuss the state’s future renewable energy economy.

CAISO's Western Energy Imbalance Market hit a record $739 million in member benefits in 2021, putting its total close to $2 billion since it launched in 2014.

Public Service Company of Colorado, Platte River Power Authority and Black Hills Colorado Electric said they plan to join SPP’s WEIS market in April 2023.

Major Western utilities plan to discuss coordinated market services and the possible formation of an organized market in an exploratory group.

The WEIM approved participation by utilities within an entity's balancing authority area — a move intended to convince Xcel Energy Colorado to join the market.