What a Commercial Energy Quote Requires in Illinois
By Illinois Commercial Energy editorial team
Reviewed by JakenEnergy commercial energy team
The single biggest reason a commercial energy "rate" turns out to be wrong is that it was quoted without the account's actual data. Here is exactly what an accurate Illinois quote requires — and why each item matters — so the number you get is executable, not a guess.
The essentials
- A recent bill and account number. This anchors everything: it identifies the utility, rate class, and account, and confirms whether the business even has supplier choice at that address.
- Service address and utility. Determines the market (ComEd/PJM vs. Ameren/MISO for electric; Nicor, Peoples, North Shore, or Ameren for gas) and whether choice applies.
- Historical usage. 12 months where possible — kWh for electricity, therms for gas. Gas is seasonal, so a full year captures the shape.
- Billed demand (kW). For demand-billed accounts, this is central to cost — see demand charges.
- Current contract end date. Timing drives the whole decision and avoids a holdover rate.
Helpful for larger or variable accounts
- Interval data. For load-shape-sensitive or large accounts, interval data enables accurate pricing and demand analysis.
- The executed contract. Lets terms, pass-throughs, and exclusions be read alongside the rate — see contract review.
- A meter/account inventory. Essential for multi-location portfolios.
Why an address alone isn't enough
Commercial pricing depends on the account's usage, demand, and utility — not the location. Without usage detail, a "rate" is indicative only. That's why a recent bill, which carries the account number, utility, rate class, and usage, is the real starting point. See commercial electricity and commercial natural gas for how each is priced.
Handle bills securely
Utility bills carry confidential account data. Share them only through a secure request — not a public post or an unverified address. When you have a recent bill ready, that's the moment a real quote becomes possible.
Sources
A quote built on the account's data is executable; one built on an address is only an estimate.
Frequently Asked Questions
QWhat do I need to get a commercial energy quote?
At minimum: a recent bill and account number, the service address and utility, historical usage (kWh for electric, therms for gas), billed demand (kW) where it applies, and the current contract's end date. Larger or load-shape-sensitive accounts also benefit from interval data. With these, pricing can be executable rather than indicative.
QWhy isn't a quote possible from just an address?
Because commercial pricing depends on the specific account's usage, demand, and utility, not the location alone. Without usage detail, any 'rate' is a generic estimate. A recent bill provides the account number, utility, rate class, and usage that a real quote requires.
QIs my utility bill information safe to share?
Utility bills contain confidential account information, so they should be shared only through a secure channel, never posted publicly or sent to an unverified address. Provide bills through the secure request rather than an open form or email where possible.