Glenview, Illinois
Commercial Energy in Glenview, IL: Electricity & Gas
At a glance
Utility and supplier-choice checkpoint
The utilities below are local service context, not an address-level eligibility guarantee. Confirm the current bill, service address, account holder, and rate class before requesting a change.
| Account | Local utility context | What to verify |
|---|---|---|
| Electricity | ComEd | Meter, tariff/rate code, current supply arrangement, measured and billed demand |
| Natural gas | Nicor Gas | Delivery utility, gas rate class, program eligibility, therms and supplier contract |
Electricity: Eligible ComEd-served business accounts can compare retail electric supply while ComEd continues delivery. Use the ICC’s electric-choice explanation and the account’s ComEd tariff and rate class. Keep supply, delivery demand, and capacity inputs separate.
Natural gas: Nicor lists this community in its service territory. For a Nicor business account, Customer Select is the relevant supplier-choice program. Check current eligibility, supplier fees, billing arrangements, and applicable utility charges and credits.
Supplier selection affects the supply arrangement. It does not replace the delivery utility or its infrastructure and emergency responsibilities. A change in supplier does not guarantee a lower total bill.
Give an expanding practice a new usage forecast
A Glenview medical, dental, or professional practice moving into additional space should identify whether the new suite adds a utility meter or changes consumption on the existing one. Separate account additions from increased load; a supply agreement may treat them differently.
Document longer opening hours, equipment that remains on overnight, and any landlord-provided heating. Where the gas account is held by the owner, ask for the cost-allocation basis rather than requesting a tenant supply switch. For direct Nicor accounts, use Customer Select terms and therm-based proposals, not an electricity-style capacity calculation.
Account review steps
- Record whether an added suite brings a separate service account.
- List the new equipment and expected weekly operating hours.
- Check the supply agreement’s provisions for additional meters.
Worked Energy Desk example
Suppose two complete electric proposals cover 246,000 kWh a year over the same term. Offer A includes all modeled variable supply components at 8¢/kWh plus $20 per month. Offer B includes the same components at 8.4¢/kWh with no monthly fee. The offer comparison calculates annual supply costs of $19,920 and $20,664, a difference of $744.
Set an included component to zero only when the proposal confirms it is included or inapplicable; leave an unresolved component blank. Delivery and taxes still need separate treatment. For gas, select the gas mode and use consistent therm-based rates, including the bill’s heat-content factor when converting Ccf. These are illustrative inputs, not local utility rates, supplier quotes, or promised savings.
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:
- Pull a recent electric bill and, where there is meaningful gas load, a recent gas bill so the gas utility is confirmed.
- For large or demand-billed accounts, gather 12 months of usage and peak-demand history so seasonality and capacity exposure can be seen clearly.
- 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.
Practical answers
Questions you may have
Which utilities serve Glenview businesses?
Electricity delivery is ComEd. Natural gas delivery in the near-north suburbs can be either Nicor Gas or North Shore Gas depending on the address, so confirm the gas utility on a recent bill rather than assuming. Both electric and gas allow eligible commercial customers to choose a competitive supplier.
How do I know whether my Glenview gas utility is Nicor or North Shore Gas?
Read a recent natural gas bill. The delivery utility's name, logo, and account number appear on it, and that is the definitive answer for a specific address. Territory in the near-north area varies block by block, so the bill is more reliable than any general map or assumption.
Does switching suppliers affect service in Glenview?
No. ComEd remains the electricity delivery utility and your gas utility remains the gas delivery utility, handling wires, pipes, meters, and emergencies regardless of the supplier. Only the supply portion of the bill changes when a business signs a competitive supply contract.
How does supplier choice actually work in ComEd territory?
Eligible commercial customers can stay on ComEd's default supply service or sign a contract with a licensed Alternative Retail Electric Supplier (ARES). Either way ComEd owns the wires, reads the meter, and responds to outages. The supplier only sets the price of the supply portion. The Illinois Commerce Commission licenses ARES and publishes consumer basics through Plug In Illinois.
What should Glenview businesses prepare for an account review?
Record whether an added suite brings a separate service account. List the new equipment and expected weekly operating hours. Check the supply agreement’s provisions for additional meters. Use the linked Energy Desk example as a planning illustration and confirm the account-specific tariff and contract.
Put this into practice
Compare supply offers
Put electricity or gas offers on the same basis. See included costs, exclusions, and unresolved inputs.
Open the toolSources & account-specific limits
- ComEd — Rates and Rules ↗
- Illinois Commerce Commission — Electric Choice Basics ↗
- Nicor Gas — Communities served ↗
- Nicor Gas — Business Customer Select ↗
Utility tariffs, program eligibility, supplier terms, and available prices can change. This guide is educational; an actual recommendation requires the applicable bill, usage, and contract. Next planned review: January 15, 2027.