Compare O'Fallon, IL electricity rates and plans (April 2025)

Best O'Fallon, IL electricity rates

In the city of O'Fallon, you can find electricity rates that range from 5.72 cents to 30.58 cents per kWh. The best electricity plans in O'Fallon for you depend on how much power you use and when you use it. Comparing companies is the best way to find better rates. Below are some rates from popular electric companies in O'Fallon.

Because Illinois has a deregulated electricity market, O'Fallon residents have the flexibility to shop around for a cheaper electricity bill. Many states don’t offer this choice. If you’re looking to reduce your energy bill, consider switching to a different provider or plan. O'Fallon electricity providers offer different types of plans for residents and businesses to satisfy a range of needs.

Average cost of electricity in O'Fallon, Illinois

According to our data, the average electricity rate in O'Fallon is 13.89 cents per kWh. This equates to an average residential bill of $123.99 per month. Our data also shows the average resident in O'Fallon uses 892 kWh per month. Below, you can see how O'Fallon's electricity rates compare to the averages in Illinois and the United States.

Since the average price is 13.89 cents per kWh or $123.99 per month for residential electricity, prices lower than these can be considered affordable. Electricity rates in O'Fallon, Illinois depend on your home size and usage, so the kWh rate is more useful when comparing your rate to the average.

Best electricity plans

We've analyzed the prices, terms, and conditions of popular O'Fallon electricity plans. Below are our picks for the best residential plans in the state.

Provider	Contract Term	Rate	Plan
	36 months	7.99¢/kWh	See Plan
	12 months	8.19¢/kWh	See Plan
	18 months	8.39¢/kWh	See Plan
	24 months	8.48¢/kWh	See Plan
	32 months	8.68¢/kWh	See Plan
	36 months	9.09¢/kWh	See Plan
	36 months	9.89¢/kWh	See Plan
	24 months	10.09¢/kWh	See Plan
	24 months	10.19¢/kWh	See Plan
	36 months	10.59¢/kWh	See Plan
	12 months	10.69¢/kWh	See Plan
	36 months	11.39¢/kWh	See Plan
	24 months	11.59¢/kWh	See Plan
	36 months	55.9¢/kWh	See Plan
	12 months	57.9¢/kWh	See Plan
	36 months	57.9¢/kWh	See Plan
	12 months	59.9¢/kWh	See Plan
	36 months	70.9¢/kWh	See Plan
	36 months	72.9¢/kWh	See Plan
	36 months	77.9¢/kWh	See Plan
	36 months	85.9¢/kWh	See Plan
	36 months	87.9¢/kWh	See Plan
	24 months	90.9¢/kWh	See Plan
	24 months	91.9¢/kWh	See Plan
	36 months	92.9¢/kWh	See Plan
	24 months	$1.06/kWh	See Plan
	24 months	$1.07/kWh	See Plan
See All Plans

Compare O'Fallon electricity providers

There are 44 electricity providers in O'Fallon, IL. While some providers only serve specific areas, you have multiple options for electricity wherever you are. Different providers can offer different specials, plan types, and sales throughout the year. However, always read the fine print of the energy plans you consider to avoid hidden penalties.

Business electricity rates in O'Fallon, IL

Commercial rates are typically cheaper than residential rates in O'Fallon, Illinois because businesses consume a lot of energy. This means they get a volume discount on electricity. Think about how much power a corner store might use to run HVAC, refrigeration, security systems, lighting, and computers. It adds up. Our data shows the average business in O'Fallon pays 9.78 cents per kWh for electricity and has an average bill of $67,479 per month. They also use 6,900 kWh per month, which is a big increase from the residential average of 892 kWh.

Finding ways to reduce overhead costs is essential as a business owner. You have the opportunity to do that in a deregulated electricity market. Even reducing your electricity by one or two cents per kWh can make a huge difference when you have a high monthly bill. Compare commercial electricity rates to find the plan that makes the most sense for your business.

Best commercial electricity plans

Below are the top commercial electricity plans in O'Fallon, Illinois.

Provider	Contract Term	Rate	Plan
	3 months	33.11¢/kWh	See Plan
	3 months	30.24¢/kWh	See Plan
	6 months	39.42¢/kWh	See Plan
	6 months	46.50¢/kWh	See Plan
	6 months	46.00¢/kWh	See Plan
	6 months	50.82¢/kWh	See Plan
	6 months	51.29¢/kWh	See Plan
	12 months	45.89¢/kWh	See Plan
	12 months	41.87¢/kWh	See Plan
	12 months	46.50¢/kWh	See Plan
	12 months	46.89¢/kWh	See Plan
	9 months	42.20¢/kWh	See Plan
	9 months	46.50¢/kWh	See Plan
	12 months	46.00¢/kWh	See Plan
	9 months	46.00¢/kWh	See Plan
	18 months	43.81¢/kWh	See Plan
	18 months	46.50¢/kWh	See Plan
	18 months	53.92¢/kWh	See Plan
	18 months	53.12¢/kWh	See Plan
	18 months	46.00¢/kWh	See Plan
	24 months	54.80¢/kWh	See Plan
	24 months	55.14¢/kWh	See Plan
	24 months	46.50¢/kWh	See Plan
	24 months	45.38¢/kWh	See Plan
	24 months	48.10¢/kWh	See Plan
	36 months	48.05¢/kWh	See Plan
	36 months	55.48¢/kWh	See Plan
	36 months	48.88¢/kWh	See Plan
	36 months	47.53¢/kWh	See Plan
	36 months	51.30¢/kWh	See Plan
	48 months	48.88¢/kWh	See Plan
	48 months	48.45¢/kWh	See Plan
	60 months	48.88¢/kWh	See Plan
	60 months	49.00¢/kWh	See Plan
	48 months	51.30¢/kWh	See Plan
	60 months	51.30¢/kWh	See Plan
	6 months	53.80¢/kWh	See Plan
	12 months	55.40¢/kWh	See Plan
	6 months	69.40¢/kWh	See Plan
	18 months	57.30¢/kWh	See Plan
	60 months	57.60¢/kWh	See Plan
	12 months	68.67¢/kWh	See Plan
	24 months	58.40¢/kWh	See Plan
	18 months	71.83¢/kWh	See Plan
	36 months	60.10¢/kWh	See Plan
	60 months	67.02¢/kWh	See Plan
	48 months	60.70¢/kWh	See Plan
	24 months	69.49¢/kWh	See Plan
	36 months	70.28¢/kWh	See Plan
	48 months	76.89¢/kWh	See Plan
See All Plans

How to switch your O'Fallon electricity provider

Wondering how to make the switch to a new electricity provider in O'Fallon? The process is straightforward and won't disrupt your service.

First, review your current agreement's terms, then select either a new Retail Electric Supplier (ARES) or return to utility providers like ComEd or Ameren.

Key steps to switch providers:

• Compare rates among certified suppliers through the Illinois Commerce Commission
• Choose your preferred supplier and plan
• Let the new supplier handle the transfer process
• Wait for the change to take effect on your next meter reading

You won't need any home visits, and your electricity service will continue uninterrupted throughout the switch.

Best time to switch electric companies in O'Fallon, Illinois?

Determining the ideal time to switch energy providers in O'Fallon requires careful consideration of market trends and seasonal price fluctuations.

You'll want to review your current rates during spring and fall when energy prices typically stabilize between peak seasons.

Before making a switch, you should:

• Compare your utility's "Price-to-Compare" with alternative supplier rates
• Review the Illinois Power Agency's procurement plans for upcoming price trends
• Evaluate whether long-term contracts align with current market conditions

Remember that regulated utilities often provide the most stable rates year-round.

O'Fallon's deregulated electricity market

Since Illinois deregulated its electricity market in 1997, you've had the power to choose your electricity provider from multiple Alternative Retail Electric Suppliers (ARES).

The system works through a split structure where utilities like ComEd and Ameren Illinois maintain the power lines while ARES compete to sell you electricity.

You'll receive two main services:

• Delivery (from your utility company)
• Supply (from your chosen ARES or utility)

The Illinois Commerce Commission oversees the market to guarantee fair competition, while the Illinois Power Agency helps secure competitive rates.

You can choose between fixed rates, variable rates, or green energy options through municipal aggregation programs.

Types of electricity plans in O'Fallon, IL

O'Fallon offers four main types of plans that cater to different needs and preferences.

Fixed-rate plans provide stable pricing throughout your contract term, typically lasting 12-36 months. While you'll pay early termination fees for canceling, you'll enjoy predictable monthly bills.

Variable-rate plans adjust monthly based on market conditions. You won't face termination fees, but rates can spike during high-demand periods.

No-deposit and prepaid plans offer flexibility in payment structure. You can either start service without an upfront deposit or pay in advance.

Green energy plans support renewable sources through RECs, though they may cost slightly more than traditional options.

Compare O'Fallon electricity rates

Compare O'Fallon electricity rates to save money and avoid overpaying in the deregulated market. Bills can vary greatly, with rates between 6 to 31 cents per kWh across different providers and plan structures. Take the time to read the fine print and do the math to figure out which is your best option.

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O'Fallon, IL electricity rate FAQs