Illinois
Best electricity plans in Illinois
Illinois has two electricity markets with different rates, so we rank them separately: ComEd (northern Illinois) and Ameren Illinois(central and southern). Each ranking uses only that utility's plans and its own Price to Compare — independent verdicts, no paid placements.
First: are you on a municipal aggregation rate?
Many Illinois communities run opt-out municipal aggregation programs that automatically enroll residents in a town-negotiated supply rate. If you're on one, the rate on your bill is your aggregation rate, and that — not your utility's Price to Compare — is the number a plan below has to beat. Check your bill first. How Illinois municipal aggregation works.
ComEd territory
Northern Illinois, including the Chicago metro. Rankings below cover only ComEd plans — the ComEd Price to Compare benchmark is 10.399¢/kWh; a competitive plan has to beat that (or your aggregation rate, if you're on one).
Best for Lowest Rate
The cheapest plans available now, ranked on the rate you'd actually pay.
American Power & Gas of IL, LLC
High caution advisedAP&G Fixed Intro
$262/year savings vs. average default rate (10.40¢/kWh) at 750 kWh/month
Santanna Energy Services
Not yet reviewedChoice 12-Month
CleanChoice Energy, Inc.
Not yet reviewedClean Shopper BL1
Editorial note on best for lowest rate winner
American Power & Gas of IL, LLC offers the lowest headline rate in this category. However, our editorial review flagged elevated complaint patterns and teaser rate concerns. We recommend reading the full review before signing up.
Read our American Power & Gas of IL, LLC reviewBest for Rate Stability
Longer fixed terms that lock your rate against market swings.
Santanna Energy Services
Not yet reviewedChoice 12-Month
$6/year savings vs. average default rate (10.40¢/kWh) at 750 kWh/month
CleanChoice Energy, Inc.
Not yet reviewedClean Shopper BL1
Just Energy Solutions Inc.
Not yet reviewedRate Guard Plan - 24
Best for Green Energy
100% renewable plans, ranked by price.
American Power & Gas of IL, LLC
High caution advisedAP&G Fixed Intro 100% Green
$217/year savings vs. average default rate (10.40¢/kWh) at 750 kWh/month
CleanChoice Energy, Inc.
Not yet reviewedClean Shopper BL1
Constellation Energy
Recommended12 Month Plan - 100% Green
Editorial note on best for green energy winner
American Power & Gas of IL, LLC offers the lowest headline rate in this category. However, our editorial review flagged elevated complaint patterns and teaser rate concerns. We recommend reading the full review before signing up.
Read our American Power & Gas of IL, LLC reviewBest for Flexibility
Short terms (3–6 months) for renters and movers who want to stay flexible.
American Power & Gas of IL, LLC
High caution advisedAP&G Fixed Intro
$262/year savings vs. average default rate (10.40¢/kWh) at 750 kWh/month
Inspire Energy Holdings, LLC
Proceed with cautionInspire Fixed 6
Editorial note on best for flexibility winner
American Power & Gas of IL, LLC offers the lowest headline rate in this category. However, our editorial review flagged elevated complaint patterns and teaser rate concerns. We recommend reading the full review before signing up.
Read our American Power & Gas of IL, LLC reviewBest for Overall Value
The best balance of rate, term, and fees.
Santanna Energy Services
Not yet reviewedChoice 12-Month
$6/year savings vs. average default rate (10.40¢/kWh) at 750 kWh/month
CleanChoice Energy, Inc.
Not yet reviewedClean Shopper BL1
Constellation Energy
Recommended12 Month
Best for Low Usage (Under 500 kWh/month)
For small apartments and light users — plans with low or no monthly fees.
American Power & Gas of IL, LLC
High caution advisedAP&G Fixed Intro
$175/year savings vs. average default rate (10.40¢/kWh) at 500 kWh/month
Santanna Energy Services
Not yet reviewedChoice 12-Month
CleanChoice Energy, Inc.
Not yet reviewedClean Shopper BL1
Editorial note on best for low usage (under 500 kwh/month) winner
American Power & Gas of IL, LLC offers the lowest headline rate in this category. However, our editorial review flagged elevated complaint patterns and teaser rate concerns. We recommend reading the full review before signing up.
Read our American Power & Gas of IL, LLC reviewBest for High Usage (Over 2000 kWh/month)
For larger homes and heavy users, where the per-kWh rate matters most.
American Power & Gas of IL, LLC
High caution advisedAP&G Fixed Intro
$698/year savings vs. average default rate (10.40¢/kWh) at 2000 kWh/month
Santanna Energy Services
Not yet reviewedChoice 12-Month
Editorial note on best for high usage (over 2000 kwh/month) winner
American Power & Gas of IL, LLC offers the lowest headline rate in this category. However, our editorial review flagged elevated complaint patterns and teaser rate concerns. We recommend reading the full review before signing up.
Read our American Power & Gas of IL, LLC reviewBest for New Connections & Movers
Quick, low-friction plans for setting up service at a new address.
Inspire Energy Holdings, LLC
Proceed with cautionInspire Fixed 6
Best for Customer Service
Suppliers that pair a competitive rate with a solid service record.
Constellation Energy
Recommended12 Month
Public Power, LLC
RecommendedElectric 24 Month Standard Fixed Rate
Ameren Illinois territory
Central and southern Illinois. Rankings below cover only Ameren Illinois plans — the Ameren Illinois Price to Compare benchmark is 11.326¢/kWh; a competitive plan has to beat that (or your aggregation rate, if you're on one).
Best for Lowest Rate
The cheapest plans available now, ranked on the rate you'd actually pay.
SmartEnergy Holdings, LLC
Not yet reviewed12-Month Fixed-Rate Plan 100% Renewable Electricity
$56/year savings vs. average default rate (11.33¢/kWh) at 750 kWh/month
Public Power, LLC
RecommendedElectric 12 Month Standard Fixed Rate
Illinois Gas & Electric
Not yet reviewedPower Lock 12
Best for Rate Stability
Longer fixed terms that lock your rate against market swings.
SmartEnergy Holdings, LLC
Not yet reviewed12-Month Fixed-Rate Plan 100% Renewable Electricity
$56/year savings vs. average default rate (11.33¢/kWh) at 750 kWh/month
Public Power, LLC
RecommendedElectric 12 Month Standard Fixed Rate
Illinois Gas & Electric
Not yet reviewedPower Lock 12
Best for Green Energy
100% renewable plans, ranked by price.
SmartEnergy Holdings, LLC
Not yet reviewed12-Month Fixed-Rate Plan 100% Renewable Electricity
$56/year savings vs. average default rate (11.33¢/kWh) at 750 kWh/month
Constellation Energy
Recommended12 Month Plan - 100% Green
Best for Flexibility
Short terms (3–6 months) for renters and movers who want to stay flexible.
Constellation Energy
Recommended6 Month
SmartEnergy Holdings, LLC
Not yet reviewed6-Month Fixed-Rate Plan 100% Renewable Electricity
Best for Overall Value
The best balance of rate, term, and fees.
Public Power, LLC
RecommendedElectric 12 Month Standard Fixed Rate
$30/year savings vs. average default rate (11.33¢/kWh) at 750 kWh/month
SmartEnergy Holdings, LLC
Not yet reviewed12-Month Fixed-Rate Plan 100% Renewable Electricity
Constellation Energy
Recommended12 Month
Best for Low Usage (Under 500 kWh/month)
For small apartments and light users — plans with low or no monthly fees.
SmartEnergy Holdings, LLC
Not yet reviewed12-Month Fixed-Rate Plan 100% Renewable Electricity
$38/year savings vs. average default rate (11.33¢/kWh) at 500 kWh/month
Public Power, LLC
RecommendedElectric 12 Month Standard Fixed Rate
Illinois Gas & Electric
Not yet reviewedPower Lock 12
Best for High Usage (Over 2000 kWh/month)
For larger homes and heavy users, where the per-kWh rate matters most.
SmartEnergy Holdings, LLC
Not yet reviewed12-Month Fixed-Rate Plan 100% Renewable Electricity
$150/year savings vs. average default rate (11.33¢/kWh) at 2000 kWh/month
Public Power, LLC
RecommendedElectric 12 Month Standard Fixed Rate
Illinois Gas & Electric
Not yet reviewedPower Lock 12
Best for New Connections & Movers
Quick, low-friction plans for setting up service at a new address.
Constellation Energy
Recommended6 Month
SmartEnergy Holdings, LLC
Not yet reviewed6-Month Fixed-Rate Plan 100% Renewable Electricity
Best for Customer Service
Suppliers that pair a competitive rate with a solid service record.
Public Power, LLC
RecommendedElectric 12 Month Standard Fixed Rate
$30/year savings vs. average default rate (11.33¢/kWh) at 750 kWh/month
Constellation Energy
Recommended6 Month
Illinois supplier verdicts
Our independent take on the reviewed suppliers serving Illinois — based on economics and pricing honesty, not marketing.
Workable, but read the fine print before signing.
Pricing or practices we'd steer clear of.
Illinois electricity FAQ
- How often are the winners updated?
- Plan data refreshes weekly from Plug In Illinois. Category winners are re-evaluated monthly. If a winner's rate changes significantly mid-month, we update immediately.
- Why doesn't your "best overall" pick match other sites?
- Other sites typically rank by rate alone, or by which supplier pays the highest commission. Our overall ranking weighs rate, term length, early termination fees, and supplier track record. Different methodology, different winner.
- Is the "lowest rate" winner always the best choice?
- No. The lowest-rate plan may have a short term, a high ETF, or be from a supplier with a less reliable track record. That's why we rank by category — different shoppers need different plans.
- Why aren't all IL suppliers represented in the winners?
- We rank from ICC-licensed suppliers with active residential plans on Plug In Illinois. Some suppliers have active licenses but no current residential plan offerings — they're excluded from rankings but not from the comprehensive supplier list.
- Can I trust your rankings if you earn commissions?
- We earn affiliate commissions when readers switch through our links. But commissions don't influence rankings — plans are ranked by category criteria, not by what we earn. If a plan we earn commission from doesn't actually win its category, it doesn't appear in the winners list.