Commercial Energy in Itasca, IL: Electricity & Gas

Itasca is a DuPage County community known for its corporate campuses and office parks, alongside hospitality and some light industrial. Those account types — multi-tenant office buildings, single-tenant corporate headquarters, hotels, and warehouses tucked into business parks off the I-290/I-355 corridor — tend to carry the kind of steady, sizable load where how you buy energy actually shows up on the bill. For large office and campus accounts, commercial energy procurement and demand analysis are worth a careful look.

Utilities in Itasca

• Electricity: ComEd is the delivery utility, with commercial supplier choice available. See the ComEd commercial guide.
• Natural gas: Nicor Gas is the delivery utility, with commercial supplier choice through Choices for You. See the Nicor Gas commercial guide.

Confirm both utilities from a recent bill. The utility continues delivery and emergency service when a business chooses a supplier.

Supply versus delivery: what choice changes

Every commercial energy bill in Itasca is really two bills stacked together. Delivery is the regulated part — the poles, wires, pipes, meters, maintenance, and emergency response that ComEd and Nicor Gas provide. That part does not change no matter who supplies your energy, and its rates are set through the Illinois Commerce Commission. Supply is the commodity itself: the electricity and the gas molecules. In ComEd and Nicor territory, eligible commercial customers can choose to buy that supply from a licensed competitive supplier instead of taking the utility's default supply service.

Choosing a supplier does not create a second company that shows up when the lights go out. ComEd still restores power; Nicor still handles a gas leak. What a supplier contract does is fix the price and terms of the supply portion — often for a set term — so a business can plan around a known rate instead of riding the utility's default price, which resets periodically. For an office park or corporate campus, that predictability is frequently the whole point.

What shapes energy costs here

• Corporate campuses and office parks — large accounts are often demand-billed; see commercial real estate energy procurement for the portfolio angle across a multi-building or multi-tenant footprint.
• Office and campus HVAC makes demand charges a common cost driver. Demand is billed on the peak kW an account pulls in a billing period, so a single hot afternoon when chillers and rooftop units all run at once can set a charge that carries regardless of total kilowatt-hours used.
• ComEd/PJM capacity matters for larger accounts. Northern Illinois sits in the PJM market, and an account's peak-demand behavior on the system's highest-load hours feeds a capacity tag (the PLC) that follows the account into its future supply cost. That is why peak management is a supply-cost question, not just a delivery one.
• Seasonality cuts both ways. Office cooling drives summer electric peaks, while hospitality and any account with real heating or hot-water load sees natural gas rise through winter — which is why gas is worth procuring alongside electricity for hotels and restaurants.

Contract structure and who holds the account

In multi-tenant office parks — common in Itasca — an early question is simply who holds the meter and the utility account: the building owner, a property manager, or the tenant. That determines who can sign a supply contract and how costs flow through a lease. Where a landlord procures for common areas and tenants hold their own meters, the two can be handled separately or coordinated, which is part of the commercial real estate angle.

Supply contracts also come in different structures — most commonly a fixed price for a set term, or an index/pass-through arrangement that moves with the market. The right fit depends on how much budget certainty an account wants versus its appetite for market movement, and on when the current contract or default-service period ends. Watching that renewal window matters: default supply resets on its own schedule, and existing supplier contracts can roll into less favorable evergreen terms if a renewal date passes unmanaged. Knowing the end date is what keeps a decision on your timeline rather than the utility's or an incumbent supplier's.

Getting started

The most useful first step is simply reading the bill. Confirm the delivery utilities, note the rate class, and check whether the account is energy-only or demand-billed — that one detail changes the whole analysis. From there:

1. Pull a recent electric bill and, where there's meaningful gas load, a recent gas bill.
2. For large or demand-billed accounts, gather 12 months of usage and the peak-demand history so seasonality and capacity exposure can be seen clearly.
3. Note any upcoming lease changes, expansions, or equipment additions that could shift load.

Provide a recent electric and (where applicable) gas bill for an Itasca business (12 months of usage helps for large accounts), and the account can be reviewed and priced on matched terms through the procurement process. No savings figure is promised in advance — the goal is a clear, apples-to-apples comparison and a contract structure that fits how the building actually runs.