Illinois
Power factor correction in Naperville, IL
How power factor is billed in Naperville, when correcting it is worth doing, and how to get your own bill reviewed.
Which utility serves Naperville?
The research identifies Naperville Electric Utility as the delivery utility serving Naperville. Confirm your facility's utility from its bill or service address; postal addresses and service boundaries can differ.
Not on ComEd's list of cities and villages (ILL. C. C. No. 10, Sheets 5-18). Rates are set by Naperville Municipal Code Title 8 Ch. 1. Fringe or unincorporated parcels with a Naperville address were not checked.
Territory source: Naperville Electric Utility territory listing.
Naperville's own electric utility
Naperville is served by a municipal utility, City of Naperville Department of Public Utilities – Electric, which sets its own retail rates and rules rather than following a state-wide investor-owned utility. Naperville requires customers to keep power factor at 95–100%. A power factor/quality fee can apply under an individual written agreement, but its amount isn't published.
Source: Naperville Municipal Code Title 8, Ch. 1, Art. C; DPU-E Service Rules and Policies, Code section 8-1C-4 item 5; Service Rules section 25.
The power-factor rule
Naperville Electric Utility Partly confirmed
Naperville requires customers to keep power factor at 95–100%. A power factor/quality fee can apply under an individual written agreement, but its amount isn't published.
GS1 (under 50 kW), GS2 (over 50 kW), PM, TM; Service Rules section 25. Applies to: All customers. Customers must maintain 95–100% power factor and may be required to install corrective equipment. Under a written agreement, a customer causing poor power factor or power quality can be charged a power factor/quality fee. There is no automatic kVAR charge in the rate tables.
- The fee amount and formula are set by individual agreement and aren't published.
As checked 2026-10-03. Naperville Electric Utility's full rules, tariff quotes and sources →
Is correction worth it in Naperville?
We could only partly confirm Naperville Electric Utility's current rules, so the reliable answer is to read your bill: send us one.
Working with us in Naperville
Naperville is about 90 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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