Several energy utility companies in Arizona, including Arizona Public Service APS Salt River Project SRP, Tucson Electric Power TEP, and UniSource Energy Services, are set to join the Southwest Power Pool’s SPP new Markets+ energy market.
This new day-ahead, real-time market is designed to span the northwest, southwest, and mountain west regions, enhancing reliability and offering nearly $100 million in savings, which will be passed on to customers.
The collaboration will support Arizona’s growing energy demands and help integrate more renewable resources into the grid.
APS plans to join as early as 2027, aiming to improve energy efficiency, grid resilience, and access to diverse generation resources, including hydroelectric, wind, and nuclear power.
The new market will enable Arizona’s utilities to respond more efficiently to market fluctuations and regional weather events, benefiting from the availability of resources such as excess solar energy during off-peak times.
The shift to Markets+ is a strategic move to ensure affordable, reliable energy for customers while advancing sustainability goals, such as SRP’s aim to meet its 2035 sustainability objectives.
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