Commercial Energy in Naperville, IL: Municipal Electric & Gas

Naperville is an important point of clarity in Illinois commercial energy: it is not a competitive-electricity market. The city owns its electric utility, so a business here cannot shop for an electricity supplier the way a ComEd or Ameren customer can. Natural gas, however, is a different story.

Electricity: municipal utility, no supplier choice

Naperville operates its own city-owned electric utility and buys power on a full-requirements basis through the Illinois Municipal Electric Agency (IMEA). That means:

• There is no Alternative Retail Electric Supplier (ARES) choice for Naperville businesses — competitive electricity supply does not apply.
• Any website offering to "switch your Naperville electricity supplier" is describing something that does not exist here.
• The productive electric-side work is usage, efficiency, and bill/rate review with the municipal utility.

This is exactly why confirming the delivery utility matters before assuming choice applies — see how commercial electricity choice works in Illinois.

Natural gas: Nicor Gas, with supplier choice

Naperville's natural gas utility is Nicor Gas, and here supplier choice does apply. Eligible commercial customers can buy gas supply from a licensed alternative gas supplier through Nicor's Choices for You program while Nicor delivers the gas. For a business with meaningful gas load — heating, hot water, kitchens, process — this is the account worth procuring. See the Nicor Gas commercial guide and commercial natural gas in Illinois.

Getting started

For a Naperville business, the honest path is: procure natural gas competitively through Nicor where the account justifies it, and treat electricity as a usage, efficiency, and bill-review exercise with the municipal utility. Provide a recent gas bill to review the gas account on matched terms. No savings figure is promised in advance.