Commercial Energy in Glenview, IL: Electricity & Gas

Glenview is a north-suburban Cook County community with a broad commercial base — office and medical buildings, retail corridors, restaurants and hospitality, and light industrial and flex space. For businesses across that mix, the way energy is purchased is worth understanding, because a commercial bill is really two separate things stacked together, and only one of them is open to choice. The starting point in Glenview is the same as anywhere in northern Illinois: know your delivery utilities, then decide how you want to buy supply.

Utilities in Glenview

• Electricity: ComEd is the delivery utility, with commercial supplier choice available. See the ComEd commercial guide.
• Natural gas: In the near-north suburbs, gas delivery can be either Nicor Gas or North Shore Gas depending on the address. Do not assume one — confirm the gas utility on a recent bill.

Because the gas territory in this area varies by address, a recent bill is the reliable source of truth. The delivery utility, whichever it is, continues delivery and emergency service when a business chooses a competitive supplier.

Confirm your gas utility on the bill

This matters more in Glenview than in many suburbs. Some near-north addresses are served by North Shore Gas and others by Nicor Gas, and the dividing lines do not follow municipal boundaries neatly. Rather than guess, pull a recent natural gas bill: the delivery utility's name and account number are printed on it, and that is definitive for your specific meter. Confirming the gas utility first is not a formality — it determines which utility's rules, rate classes, and supplier-choice program apply to the gas side of the account. Get that right and everything downstream, from pricing supply to reading demand, follows cleanly.

Supply versus delivery: what choice changes

Every commercial energy bill in Glenview separates into two parts. Delivery is the regulated portion — the poles, wires, pipes, meters, maintenance, and emergency response that ComEd and your gas utility provide. That part does not change no matter who supplies the energy, and its rates are set through the Illinois Commerce Commission. Supply is the commodity itself: the electricity and the gas. In ComEd territory, and in both Nicor and North Shore Gas territory, eligible commercial customers can choose to buy supply from a licensed competitive supplier instead of taking the utility's default supply service. You can read the mechanics in how Illinois commercial electricity choice works and how commercial natural gas choice works in Illinois.

Choosing a supplier does not create a second company that appears when the lights go out. ComEd still restores power; your gas utility still handles a leak. A supplier contract fixes 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.

What shapes energy costs here

• Account type and rate class. An office or retail account billed on energy alone reads very differently from a medical building or light-industrial account that is demand-billed. The rate class on the bill is the first thing to check because it changes the entire analysis.
• HVAC and equipment peaks make demand charges a common cost driver for larger accounts. Demand is billed on the peak kW an account pulls in a billing period, so an afternoon when cooling, refrigeration, and equipment 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 that follows the account into future supply cost. That makes peak management a supply-cost question, not only a delivery one.
• Seasonality cuts both ways. Cooling drives summer electric peaks, while any account with real heating or hot-water load sees natural gas rise through winter — which is why gas is worth reviewing alongside electricity for restaurants, hospitality, and similar operations.

Contract structure and renewal timing

Supply contracts come in different structures — most commonly a fixed price for a set term, or an index or 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. Because Glenview accounts may hold separate electric and gas contracts, and because the gas side depends on which utility serves the meter, it helps to track both renewal dates so neither slips by unmanaged. Knowing each 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 reading the bill. Confirm the electric utility (ComEd) and — importantly — confirm the gas utility from a recent gas bill, since Glenview addresses land on either Nicor Gas or North Shore Gas. Note the rate class, and check whether the account is energy-only or demand-billed. From there:

1. Pull a recent electric bill and, where there is meaningful gas load, a recent gas bill so the gas utility is confirmed.
2. For large or demand-billed accounts, gather 12 months of usage and 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 a Glenview business, and the account can be reviewed and priced on matched terms through the commercial energy procurement process. No savings figure is promised in advance, and no specific outcome is guaranteed — the goal is a clear, apples-to-apples comparison and a contract structure that fits how the business actually runs.