UAMPS Update & Regional EDAM Market Cost Pressures
Summary
The city is preparing to adopt a new UAMPS pooling agreement required by PacifiCorp joining the Extended Day-Ahead Market (EDAM). This major contract change will alter how power is purchased and managed, with review scheduled over the next month before a March vote.
At a glance
- Total mentions
- 5
- Last 30 days
- 1
Discussed at 1 meeting in the last 60 days; most recently Oct 6, 2026.
Impact analysis
Affects approximately two-thirds of the city's power budget, totaling around $16 to $17 million annually.
Washington City electric ratepayers, through optimized wholesale power purchasing and market integration.
Washington City utility customers could face higher power supply costs reflected in future rate adjustments.
Mentions & discussions (5)
Regular Meeting Agenda — October 6, 2026
Washington City hit a new record peak load of 58 megawatts in July, but participation in the EDAM energy market has driven power costs up by about 30 percent due to strict day-ahead resource efficiency purchase rules.
Power Board Meeting for Washington City, Utah — July 7, 2026
Participation in the Energy Imbalance Market (EDAM) is introducing billing complexities and data delays. Wholesale power costs are projected to rise by 5 to 15 percent due to strict resource sufficiency requirements.
Regular Meeting Agenda — July 7, 2026
The board discussed UAMPS updates, noting that the new EDAM wholesale market is increasing wholesale power costs by 5% to 15% due to strict resource sufficiency rules, and highlighted long delivery times for substation transformers.
Power Board Meeting for Washington City, Utah — February 3, 2026
The city is preparing to adopt a new UAMPS pooling agreement required by PacifiCorp joining the Extended Day-Ahead Market (EDAM). This major contract change will alter how power is purchased and managed, with review scheduled over the next month before a March vote.
Power Board Meeting for Washington City, Utah — January 6, 2026
The board previewed upcoming changes to the UAMPS pooling agreement required by the new Extended Day Ahead Market launching in May.
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