Skip to main content

Cost of electricity in Rockford, IL

Updated 10/6/2024

See how much solar can save you.

  1. EnergySage
  2. IL Data Explorer
  3. IL
  4. Winnebago County

  5. Cost of Electricity in Rockford IL

Why you can trust EnergySage

The data on this page comes from real solar quotes to real solar shoppers on the EnergySage Marketplace. We give you access to transparent information so you can confidently make informed energy decisions. Learn more about how our Marketplace works and how we make money.

On average, Rockford, IL residents spend about $169 per month on electricity. That adds up to $2,028 per year.

That’s 27% lower than the national average electric bill of $2,796. The average electric rates in Rockford, IL cost 14 ¢/kilowatt-hour (kWh), so that means that the average electricity customer in Rockford, IL is using 1,166.00 kWh of electricity per month, and 13992 kWh over the course of the year.

Electric rates in Rockford, IL

This data is aggregated over the past 6 months.

Key takeaways about electric rates in Rockford, IL

  • Over the next 25 years, you should expect to pay $85,400 on electric bills in Rockford, IL.
  • You can reduce your electric bill by using less electricity or by reducing the cost of your electricity (like by installing a solar system).
  • If you install a solar system, on average, you’ll break even on your solar investment in 4.73 years in Rockford, at which point you may not owe anything on your electric bills.
  • If you’re a renter or are unable to install solar on your property, you can save 5-15% on your electric bill by subscribing to a community solar farm.

On this page

Solar saves you money by reducing or eliminating your monthly electric bill. The amount that you can save with solar in Rockford, IL is based on two factors: how much you spend on electricity now and how much of your electric bill you can offset with solar.

Based on the intensity and amount of sunlight hours in Rockford, IL, the average electricity customer in Rockford, IL will need a 10.0 kilowatt (kW) solar panel system to offset 100% of their annual electricity consumption of 13992 kWh per year. On the EnergySage Marketplace, solar shoppers in Rockford, IL pay an average of $31,000 for a 10.0 kW solar panel system prior to incentives.

The savings from offsetting 100% of an electric bill with solar can add up fast! Assuming an 4.1% annual increase in electricity prices and that you install your system with a $0-down loan, you can expect to save $2,000 in your first year, $11,000 over five years, $24,400 over 10 years, and $60,900 over 20 years on electric bills in Rockford, IL. Over your system’s lifetime you’ll save more by financing your solar system with a cash purchase, but you won’t start saving in year one. Learn more about how to finance your solar panel system.

How much can you save by going solar in Rockford, IL?

Even if onsite solar doesn’t make sense for you, you can still participate in the clean energy transition and save on your electric bills by subscribing to a community solar farm. Community solar programs in Rockford, IL typically save you 5-15% in electricity costs over the course of the year. For the average electricity customer in Rockford, IL, 10% annual savings would amount to $203 in savings per year.

How much can you save by subscribing to a community solar farm in Rockford, IL?

Find out how much community solar can save you in 2024
factors that make up a total electric bill
factors that make up a total electric bill
factors that make up a total electric bill

Monthly electric bills are a product of how much electricity you use per month and your electric rate. In Rockford, IL, the average monthly electric bill for residential customers is $169/month, which is calculated by multiplying the average monthly consumption by the average electric rate: 1,166.00 kWh * 14 ¢/kWh.

Electric bills are designed to cover all of the costs of producing the electricity that you use, of running and maintaining the electrical grid to help prevent outages, and of any public benefit funds that promote things like renewable energy and energy efficiency. These costs are rolled into both fixed charges (i.e., monthly customer charges) and variable charges (i.e., ¢/kWh that you use). While fixed charges will remain the same from month to month, the portion of variable charges on your bill each month will change based on how much electricity you use. As a result, there are two ways to reduce your bills: by either using less electricity or by reducing the cost of electricity, by installing solar for instance.

The easiest way to compare the cost of electricity from one region to another is to look at the electricity rate. Residential rates in the U.S. range from 6 ¢/kWh to 71 ¢/kWh depending upon where you live, what types of power plants provide your electricity, and when during the day or year you’re consuming electricity.

The average residential electricity rate in Rockford, IL is 14 ¢/kWh, which is 7% lower than the average electricity rate in Illinois of 15.50 ¢/kWh. The average residential electricity rate in Rockford, IL is 23% lower than the national average rate of 19 ¢/kWh.

Solar panel systems help you save money by reducing your monthly electric bills. Although a $50 or $100 electric bill might not seem like much when you pay it each month, those bills add up quickly over ten, twenty or even thirty years: if you pay $100 per month in electricity now, you’ll pay over $68,000 on electricity over the next thirty years!

EXISTING ELECTRIC BILL10 YEAR COST20 YEAR COST30 YEAR COST
$50 $7,200 $18,000 $34,000
$100 $14,000 $36,000 $68,000
$150 $22,000 $54,000 $100,000
$200 $29,000 $72,000 $140,000
$250 $36,000 $90,000 $170,000

Assuming a 4.1% annual increase based on inflation and average annual electric rate increases.

Installing solar allows you to reduce or even eliminate your electric bill: when you pay upfront for solar panels, you are effectively paying today for the electricity you’ll use over the next 25 or even 30 years. Calculating your savings from investing in solar is as simple as subtracting the amount you pay for solar from what you would have paid for electricity otherwise.

EnergySage can help you go solar and save!

We know electric bills add up over time, and going solar is a great way to save money while helping the environment. When you sign up on the EnergySage Marketplace, you'll be able to receive and compare solar quotes side-by-side from qualified solar installers in your area. We're here to help along the way - talk with one of our Energy Advisors to learn more about your unique quotes, any local solar incentives you may be eligible for, or any other questions about saving on electric bills with solar.

In 2022, the average solar payback period in Rockford is about 4.73 years – this is the point in time at which your solar investment will start to earn you money.
In most cases, you will still have an electric bill with solar. Even if your solar system offsets 100 percent of your electricity use, as long as your property remains grid-connected, your utility will still send you a bill. However, it’s possible that your bill will be $0 or even negative if your electricity supply to the grid is more than you pull (depending on the incentives available in your location).
In most cases, your monthly payment towards your solar loan will be less than your electric bill – this means that if you install a solar system with a $0-down loan, you can start saving immediately! However, you’ll still pay more over the lifetime of your system with a solar loan compared to an upfront cash payment due to the interest that accrues.
If you live in an area with retail energy providers (REPs), you may choose to switch from your standard electricity utility to a REP. There are two main options for REP contracts: fixed and variable rates. If you choose a fixed-rate plan, you’ll pay a fixed price per kWh that will remain throughout the duration of your contract. On the other hand, if you choose a variable rate plan, the rate you pay for energy will fluctuate based on the wholesale price of electricity from your energy company, which represents how much power plants charge electric companies to buy the electricity they produce.
If you’re on a demand charge electric rate, your electric bill will be based on the maximum amount of power you use over a single time period (like an hour or fifteen minute period) in a given month. You’ll still be billed for your monthly consumption, but the rate you owe for consumption will be low compared to a typical electric bill; thus, the best way to reduce the amount you owe each month is to decrease the amount of electricity you use all at once – like by installing a solar or solar-plus-storage system.
Time-of-use electric rates are an electricity plan designed to incentivize you to use less electricity when the cost of generation is high. Time-of-use rates follow a set schedule, resulting in your electricity provider charging you more for your electricity consumption when the cost of generation and demand for electricity are high (i.e., the afternoon of a hot summer day) and less when both of these are low (i.e., in the middle of the night). You can save money in two ways: by being thoughtful about when you’re running certain appliances and waiting for off-peak times when cheap electricity is available, and by installing a solar battery to reduce the amount of electricity you pull from the grid when rates are high.
When your solar panels are producing more electricity than you’re consuming, you can use that excess energy to charge your solar battery. Now let’s say your electricity usage is more than your panels are able to produce when electric rates are surging – with a solar battery, you can choose to use the energy you’ve stored rather than pull from the grid, protecting you from surge rates and high energy costs, and getting you the best electric rate possible.
As a renter, it’s likely that you won’t be able to install solar on your property. However, signing up for a community solar project saves subscribers between 5-15% on average on annual electricity costs and supports local green energy development. Additionally, as a renter you can still use plug-in batteries – storage systems that plug directly into a wall outlet – to charge or run devices when electricity rates are surging.
If you subscribe to a community solar project, you’ll likely receive two separate monthly bills: one from your utility company and one from your community solar provider. Your community solar bill will include charges for the energy your share of the project generates. This generated electricity will then show up as credits on your electric bill, lowering your overall cost.
Your savings will vary monthly with community solar because the amount of electricity you’re consuming and the amount of electricity your share of the project is generating likely won’t match up 1:1. In summer months, you’ll probably receive more credits than you’ll use. However, in winter months, you may consume more electricity than your share of the project generates – at which point you can rollover any unused credits towards these bills. So, while you might not save every month, overall, you can expect annual savings with community solar.
In most cases, it’s free to sign up for a community solar project and you’ll receive a fixed discount on any energy you buy from the project. If you need to cancel your contract eventually, there might be some cancellation fees to pay, but those are becoming much rarer, and may even be waived in certain situations.
Yes! WattBuy is an energy marketplace that allows you to compare electricity plans from PUC-licensed companies. If you live in one of the states listed below, you could save up to 40% on your electric bills by switching with WattBuy:
CT, DE, IL, ME, MD, MA, MI, NH, NJ, NY, OH, PA, RI, TX, VA, DC
See the cost of electricity across Illinois

Recommended for You

home with solar panels
Solar panel buyer's guide

Compare solar panels from leading brands

solar farms
Community solar

Save money with renewable energy by subscribing to a community solar farm

solar quotes on a computer
All about solar

Learn the basics of solar energy for your home so you can compare quotes with confidence

Make an impact.
It's never been easier.
We developed our one-of-a-kind marketplace with funding from the U.S. Department of Energy to make clean home energy solutions affordable and accessible to all.
EnergySage
Facebook LinkedIn Instagram X YouTube

ENERGYSAGE is a registered trademark and the EnergySage logo is a trademark of EnergySage, Inc. Other trademarks are the property of either EnergySage, Inc. or our licensors and are used with permission.

© Copyright 2009-2024 EnergySage, Inc. All rights reserved.

Terms of use
Privacy policy
Mobile terms of use
Non-discrimination policy

Learn more about our success working with the U.S. Department of Energy.