Iowa
Power factor correction in Dubuque, IA
How power factor is billed in Dubuque, when correcting it is worth doing, and how to get your own bill reviewed.
Which utility serves Dubuque?
The research identifies Alliant Energy (Interstate Power and Light) as the delivery utility serving Dubuque. Confirm your facility's utility from its bill or service address; postal addresses and service boundaries can differ.
Named on IPL Index of Communities (Substitute Second Revised Sheet No. 5, effective 10-1-2024), service code E. Rural co-op fringe not checked.
Territory source: Alliant Energy (Interstate Power and Light) territory listing.
The power-factor rule
Alliant Energy (Interstate Power and Light) Power-factor rule confirmed
On Large General Service, demand charges rise once the power factor drops below 85%, with a bonus above 95%. Very large rates charge or credit per kVAR.
Large General Service rates 447/487. Applies to: More than 20,000 kWh for 12 consecutive months. Where the power factor is below 85%, net demand charges increase by 0.1% for each 0.1% the power factor is below 90%. A bonus applies above 95%. Between 85% and 95% there is no adjustment.
Not established Rate 760 High Load Factor / Large Volume. Applies to: Transmission-voltage service with minimum demand of 25,000 kW. The research recorded a $1.78 per kilovar charge for reactive demand above 50% of kW and a credit below it, but we have not quoted the sheet text here, so treat this as unverified until checked. (kVAR = 50% of kW is about a 0.894 power factor; that equivalence is our calculation.)
Not established Supplementary Power 807/817; Rider ICR. Applies to: Not established on this page. The research identifies a reactive-demand provision, but this page has not established the complete applicability and source details.
- Copies were read from Alliant's site, not from the Iowa Utilities Commission filing system.
As checked 2026-10-03. Alliant Energy (Interstate Power and Light)'s full rules, tariff quotes and sources →
Is correction worth it in Dubuque?
Correction may reduce the applicable adjustment. The result depends on the schedule's measurement basis, minimums, ratchets and credit provisions; check the bill before assigning a benefit.
Working with us in Dubuque
Dubuque is about 140 miles from our Brookfield office, measured straight-line. Send your bills and available measurement data to discuss the appropriate next step and whether site work can be arranged.
Nearby
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