Springfield, Illinois

Commercial Energy in Springfield, IL: Municipal Electric, Gas Choice

Last reviewed: 7/31/2026

By Illinois Commercial Energy editorial team · Reviewed by JakenEnergy commercial energy team

Editorial and sourcing policy

Springfield is a special case among Illinois cities, and being clear about it up front saves a business a lot of wasted effort. The electricity here comes from a city-owned utility that sits outside the state's retail-choice system, so there is no electric supplier to shop for. The natural gas side, by contrast, works like most of central Illinois: Ameren Illinois delivers, and eligible commercial accounts can choose a competitive gas supplier. Understanding which side offers choice — and which does not — is the whole picture for a Springfield business.

Springfield's municipal electricity: CWLP, and no supplier choice

Springfield's electricity is provided by City Water, Light & Power (CWLP), a municipal utility owned by the City of Springfield. CWLP is not part of the state's retail-choice framework. That has one direct, practical consequence: a business in Springfield cannot shop for a competitive electricity supplier, because none is offered. There is no Alternative Retail Electric Supplier (ARES) to switch to on the electric side. Any pitch suggesting otherwise for a CWLP-served address is describing a market that does not exist here.

This is different from most of the state. In ComEd and Ameren territory, retail electricity choice lets eligible businesses buy supply from a competitive supplier. Springfield sits outside that structure entirely because its electric utility is municipal. CWLP handles generation, delivery, metering, and outages for its electric customers, and the account stays with CWLP.

So what is productive on the electric side? Because there is no supplier switch to make, the real levers are operational:

  • Usage reduction. Cutting consumption directly lowers the electric bill in a way that does not depend on any supply market.
  • Efficiency. Lighting, HVAC, controls, and equipment upgrades reduce the kilowatt-hours an account draws.
  • Demand management. For accounts where demand applies, managing when heavy equipment runs together can matter alongside total usage — see commercial demand charges for how that component generally works.
  • Rate and bill review. Confirming the account is on the correct CWLP rate schedule, and reviewing the bill for errors or a better-fit rate class, is the closest thing to a "procurement" move on the municipal electric side.

That is honest work with real value — it just is not a supplier switch, because Springfield does not offer one.

Springfield's natural gas: Ameren delivery, with choice

The gas side is where a Springfield business can actually procure. Ameren Illinois is the natural gas delivery utility in Springfield, and eligible commercial gas accounts can choose a competitive gas supplier for the supply portion while Ameren continues to deliver. See the Ameren commercial guide for context.

Here the familiar supply-versus-delivery split applies. Delivery is the regulated service Ameren provides — the gas mains, meters, maintenance, and emergency response — and it does not change with the supplier. If there is a gas leak or a service issue, Ameren responds regardless of who supplies the gas. Supply is the commodity itself, and eligible commercial accounts can buy it from a licensed alternative gas supplier instead of Ameren's default supply. A supplier contract only fixes the price and terms of the supply portion; delivery stays with Ameren, unchanged.

For a Springfield business, that makes the Ameren gas account the one where a competitive supply decision is genuinely on the table — the opposite of the electric side.

What shapes gas costs here

Natural gas costs are driven by factors that make the gas account worth pricing on its own terms:

  • Seasonality. Gas usage climbs in winter with heating and process load, so the annual pattern matters, not just a single month.
  • Load profile. How much gas a facility uses and when — a bakery, a manufacturer, and an office each carry different shapes — affects which supply structure fits.
  • Contract structure. A fixed price for a defined term gives budget certainty; an index or pass-through arrangement moves with the wholesale market, trading certainty for exposure. Which fits depends on the account and its risk tolerance, and neither structure promises a lower cost.

Because the gas account is the procurable one, it is worth reviewing deliberately rather than leaving on default supply by inertia. The commercial natural gas procurement process covers how offers are compared on matched terms.

What to gather

A Springfield business is really running two separate conversations, and each needs its own bill:

  • A recent CWLP electric bill — for a usage and rate review on the municipal side, since there is no supplier to shop.
  • A recent Ameren gas bill — for a procurement review, so the gas supply can be priced and compared while Ameren delivers.

Having both makes the split clear: the electric bill drives an efficiency and rate-review discussion with CWLP, and the gas bill drives a competitive supply comparison.

Getting started

Start by separating the two sides in your own head, because they work differently. On electricity, there is no supplier switch to make in Springfield — CWLP is municipal and outside retail choice — so the useful moves are usage reduction, efficiency, demand management where it applies, and confirming the CWLP rate and bill are right. On gas, Ameren delivers and competitive supply is available, so the gas account can be reviewed and priced through the procurement process.

Pull the two bills — CWLP electric and Ameren gas — and each side can be handled on its own terms: efficiency and rate review for the municipal electric account, competitive comparison for the gas account.

No specific savings figure, percentage, or outcome is promised in advance, and no electricity supplier switch is offered in Springfield because none exists. What is offered is honest, useful work on both fronts: a usage and rate review on the CWLP electric side, and a genuine supply comparison on the Ameren gas side.

Frequently Asked Questions

QCan a Springfield business shop for an electricity supplier?

No. Springfield's electricity is provided by City Water, Light & Power (CWLP), a municipal utility owned by the City of Springfield. CWLP is not part of the state's retail-choice framework, so there is no competitive electric supplier (ARES) to switch to. The productive electric-side work is usage review, efficiency, and rate and bill review with CWLP directly.

QWho delivers electricity in Springfield?

City Water, Light & Power (CWLP), the municipal utility owned by the City of Springfield, provides electricity in Springfield. Because it is a city-owned utility outside the retail-choice system, a business cannot choose a third-party electric supplier. CWLP handles generation, delivery, metering, and outages for its electric customers.

QIs there natural gas supplier choice in Springfield?

Yes, for gas. Springfield's natural gas delivery utility is Ameren Illinois, and eligible commercial gas accounts can choose a competitive gas supplier for the supply portion while Ameren continues to deliver. So electricity is municipal with no choice, but the gas account is one a Springfield business can actually procure.

QIf I can't switch electric suppliers, how do I manage electric costs?

Because there is no supplier to switch to, the real electric levers in Springfield are on the usage side: reducing consumption, improving efficiency, managing demand where it applies, and reviewing the CWLP rate and bill to confirm the account is on the right schedule. This is operational work, not a supply-contract decision.

QWhat should a Springfield business gather to get started?

Two things: a recent CWLP electric bill, so usage and rate class can be reviewed on the municipal side, and a recent Ameren gas bill, so the gas account can be priced and compared for competitive supply. The electric bill drives an efficiency and rate-review conversation; the gas bill drives a procurement conversation.

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Sources

Next scheduled review: 10/31/2026. Time-sensitive rate, tariff, capacity, and incentive details should be confirmed against the linked primary sources and a current bill.