Illinois
Power factor correction in St. Charles, IL
How power factor is billed in St. Charles, when correcting it is worth doing, and how to get your own bill reviewed.
Which utility serves St. Charles?
The research identifies St. Charles Municipal Electric Utility as the delivery utility serving St. Charles. Confirm your facility's utility from its bill or service address; postal addresses and service boundaries can differ.
Not on ComEd's municipality list. Rates are set by City Code Ch. 13.08. Fringe parcels with a St. Charles address were not checked.
Territory source: St. Charles Municipal Electric Utility territory listing.
St. Charles's own electric utility
St. Charles is served by a municipal utility, City of St. Charles, Illinois, which sets its own retail rates and rules rather than following a state-wide investor-owned utility. Demand-billed commercial customers with a metered power factor below 0.85 have their billing demand increased.
Source: City of St. Charles, IL Code of Ordinances, Title 13, Ch. 13.08 Electricity, Sections 13.08.260 B.2, 13.08.275 B.2, 13.08.292 B.2 (Power factor correction).
The power-factor rule
St. Charles Municipal Electric Utility Power-factor rule confirmed
Demand-billed commercial customers with a metered power factor below 0.85 have their billing demand increased.
Rate 5 General Service; Rate 7 Large General Service (450 kW and up); Rate 9 Primary Metered Large General Service. Applies to: Demand-billed non-residential customers. If the metered power factor in the billing cycle is below 0.85, billing demand is multiplied up by the shortfall. Billing demand = (1 + (0.85 − PF)) × metered demand.
- The latest amending ordinance for Rates 5 and 7 was not verified.
As checked 2026-10-03. St. Charles Municipal Electric Utility's full rules, tariff quotes and sources →
Is correction worth it in St. Charles?
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 St. Charles
St. Charles is about 80 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
Elgin, IL · Carol Stream, IL · Hanover Park, IL · Streamwood, IL · all service areas