I had this exact problem with Saint Alphonsus a few years ago, also with Idaho Power. The solution was installing voltage regulators on critical circuits. Medical equipment often needs ±2% voltage regulation vs the ±5% that ANSI allows. Cost was about $45,000 but prevented equipment failures and patient delays.
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St. Luke's Boise voltage regulation issues
St. Luke's Regional Medical Center in Boise has been experiencing voltage fluctuations causing sensitive medical equipment to malfunction. Idaho Power says voltage is within ANSI standards (114-126V on 120V base) but some imaging equipment needs tighter tolerance. Hospital is asking about power quality improvements. Anyone dealt with similar issues?
Thanks Iris. Did you have any luck getting Idaho Power to contribute to the cost since it's a power quality issue on their side?