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IGS Energy: offers on state price lists

Judy takes no money from electric or gas companies. This page uses every offer on 7 state price lists, checked November 11, 2026 from each state’s own website.

In short

  • Sells in 6 states: Illinois, Indiana, Massachusetts, Michigan, Ohio and Pennsylvania.
  • 119 offers on the state price lists today. 14 of its 119 locked plans cost less than the standard price.
  • Complaints: numbers from the state regulator in Illinois and Pennsylvania. See the complaint numbers
  • To leave: pick another company, or go back to your utility's standard price. Your power stays on. How to cancel, state by state

The standard price is what you pay if you never picked another company. A locked plan keeps its price for 6 months or more.

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Complaints about IGS Energy

We show only the complaint numbers state regulators publish, with their dates. We don’t give stars or write reviews.

Illinois

In Illinois, IGS Energy had fewer complaints than average for its number of customers from October 2025 to March 2026, by the ICC's count.Show
Complaints, August 2025 to January 2026
3 complaints: 2 about sales or marketing, 1 about contracts or billing. No formal complaints.
Complaint scorecard, October 2025 to March 2026
The ICC sorts 48 companies into five groups by complaints for every 1,000 customers. IGS Energy is in the group it calls “Lower Than Average Rate of Complaints”.
Name on the state’s list
IGS Energy (scorecard: IGS)

The ICC counts every complaint it gets, even when the company was not at fault. It says the numbers are only one way to judge a company.

We checked these on October 12, 2026.

To complain about IGS Energy in Illinois, call Illinois Commerce Commission (ICC) at 1-800-524-0795.

Plug In Illinois: consumer protections (opens a new tab)

Pennsylvania

In 2024, the PA PUC got 34 complaints from homes about IGS Energy for electricity and 34 complaints for natural gas. It doesn't rate IGS Energy against other companies, so we can't say if that is many or few for its size.Show
Electricity, 2024
34 complaints named the company. In 28 of them, it was the main company the complaint was about.
Natural gas, 2024
34 complaints named the company. In 26 of them, it was the main company the complaint was about.
Name in the report
IGS Energy (Interstate Gas Supply)

These count complaints and requests for help with a payment plan that homes brought to the PA PUC in 2024.

The PA PUC says companies differ in size and it doesn't know how many customers each one has. So a high number doesn't by itself mean the company broke the rules.

We checked these on October 13, 2026.

To complain about IGS Energy in Pennsylvania, call Pennsylvania Public Utility Commission (PUC) at 1-800-692-7380.

PA PUC: informal complaints (opens a new tab)

We haven’t found complaint numbers for IGS Energy from the regulators in Indiana, Massachusetts, Michigan and Ohio. Each state’s part below says who to call with a complaint.

Offers in each state

Tap a state to see each utility area, the company's lowest locked price and the standard price.

Illinois

16 offers. Lowest locked: electric 12.69 cents per kWh; gas 43.9 cents per therm.Show

  • ComEdElectric

    Offers listed
    4
    Locked plans
    4
    Its lowest locked price
    12.69 cents per kWh, locked for 12 months
    Standard price
    10.1 cents per kWh
    Locked plans cheaper than standard
    0 of 4

  • Nicor GasGas

    Offers listed
    4
    Locked plans
    4
    Its lowest locked price
    43.9 cents per therm, locked for 12 months
    Standard price
    31 cents per therm
    Locked plans cheaper than standard
    0 of 4

  • North Shore GasGas

    Offers listed
    4
    Locked plans
    4
    Its lowest locked price
    43.9 cents per therm, locked for 12 months
    Standard price
    39.23 cents per therm
    Locked plans cheaper than standard
    0 of 4

  • Peoples GasGas

    Offers listed
    4
    Locked plans
    4
    Its lowest locked price
    43.9 cents per therm, locked for 12 months
    Standard price
    35.18 cents per therm
    Locked plans cheaper than standard
    0 of 4

Prices are worked out for a home that uses 1,000 kWh a month, with monthly fees included.

A question or complaint about a company in Illinois? Call Illinois Commerce Commission (ICC) at 1-800-524-0795 (Check their website for the hours to call.).

Plug In Illinois: consumer protections (opens a new tab)

To check that a company may sell energy in Illinois, look for it on the state’s list:

Indiana

2 offers. Lowest locked: 79.3 cents per therm.Show

  • NIPSCOGas

    Offers listed
    2
    Locked plans
    2
    Its lowest locked price
    79.3 cents per therm, locked for 12 months
    Standard price
    48.7 cents per therm
    Locked plans cheaper than standard
    0 of 2

Prices are worked out for a home that uses 800 therms a year, with monthly fees included.

A question or complaint about a company in Indiana? Call Indiana Utility Regulatory Commission (IURC) at 1-800-851-4268 (Monday to Friday, 8:15 a.m. to 4:45 p.m. Eastern time.).

Indiana Utility Regulatory Commission: contact (opens a new tab)

To check that a company may sell energy in Indiana, look for it on the state’s list:

Massachusetts

6 offers. Lowest locked: 15.59 cents per kWh.Show

  • Eversource (Eastern Massachusetts)Electric

    Offers listed
    2
    Locked plans
    2
    Its lowest locked price
    15.99 cents per kWh, locked for 12 months
    Standard price
    17.32 cents per kWh
    Locked plans cheaper than standard
    2 of 2

  • Eversource (Western Massachusetts)Electric

    Offers listed
    2
    Locked plans
    2
    Its lowest locked price
    15.59 cents per kWh, locked for 12 months
    Standard price
    15.93 cents per kWh
    Locked plans cheaper than standard
    2 of 2

  • National GridElectric

    Offers listed
    2
    Locked plans
    2
    Its lowest locked price
    16.39 cents per kWh, locked for 12 months
    Standard price
    17.19 cents per kWh
    Locked plans cheaper than standard
    2 of 2

Prices are worked out for a home that uses 1,000 kWh a month, with monthly fees included.

A question or complaint about a company in Massachusetts? Call Massachusetts Department of Public Utilities (DPU), Consumer Division at 1-877-886-5066 (Check their website for the hours to call.).

Mass.gov: file a complaint about a gas, electric or water company (opens a new tab)

To check that a company may sell energy in Massachusetts, look for it on the state’s list:

Michigan

12 offers. Lowest locked: 49.9 cents per Ccf.Show

  • Consumers EnergyGas

    Offers listed
    5
    Locked plans
    5
    Its lowest locked price
    $4.99 per Mcf, locked for 12 months
    Standard price
    $3.345 per Mcf
    Locked plans cheaper than standard
    0 of 5

  • DTE GasGas

    Offers listed
    7
    Locked plans
    7
    Its lowest locked price
    49.9 cents per Ccf, locked for 12 months
    Standard price
    36 cents per Ccf
    Locked plans cheaper than standard
    0 of 7

Prices are worked out for a home that uses 77.5 Mcf a year, with monthly fees included.

A question or complaint about a company in Michigan? Call Michigan Public Service Commission (MPSC) at 1-800-292-9555 (Check their website for the hours to call.).

Michigan Public Service Commission: complaints (opens a new tab)

To check that a company may sell energy in Michigan, look for it on the state’s list:

Ohio

40 offers. Lowest locked: electric 11.99 cents per kWh; gas 65.9 cents per Ccf.Show

  • AEP OhioElectric

    Offers listed
    4
    Locked plans
    4
    Its lowest locked price
    12.39 cents per kWh, locked for 12 months
    Standard price
    10.19 cents per kWh
    Locked plans cheaper than standard
    0 of 4

  • AES OhioElectric

    Offers listed
    4
    Locked plans
    4
    Its lowest locked price
    11.99 cents per kWh, locked for 12 months
    Standard price
    10.86 cents per kWh
    Locked plans cheaper than standard
    0 of 4

  • Duke Energy OhioElectric

    Offers listed
    4
    Locked plans
    4
    Its lowest locked price
    11.99 cents per kWh, locked for 12 months
    Standard price
    10.49 cents per kWh
    Locked plans cheaper than standard
    0 of 4

  • Ohio EdisonElectric

    Offers listed
    4
    Locked plans
    4
    Its lowest locked price
    12.39 cents per kWh, locked for 12 months
    Standard price
    11.07 cents per kWh
    Locked plans cheaper than standard
    0 of 4

  • The Illuminating CompanyElectric

    Offers listed
    4
    Locked plans
    4
    Its lowest locked price
    12.39 cents per kWh, locked for 12 months
    Standard price
    11.24 cents per kWh
    Locked plans cheaper than standard
    0 of 4

  • Toledo EdisonElectric

    Offers listed
    4
    Locked plans
    4
    Its lowest locked price
    12.39 cents per kWh, locked for 12 months
    Standard price
    11.26 cents per kWh
    Locked plans cheaper than standard
    0 of 4

  • CenterPoint Energy OhioGas

    Offers listed
    4
    Locked plans
    4
    Its lowest locked price
    67.9 cents per Ccf, locked for 12 months
    Standard price
    46.64 cents per Ccf
    Locked plans cheaper than standard
    0 of 4

  • Columbia Gas of OhioGas

    Offers listed
    4
    Locked plans
    4
    Its lowest locked price
    67.9 cents per Ccf, locked for 12 months
    Standard price
    50.67 cents per Ccf
    Locked plans cheaper than standard
    0 of 4

  • Duke Energy OhioGas

    Offers listed
    4
    Locked plans
    4
    Its lowest locked price
    65.9 cents per Ccf, locked for 12 months
    Standard price
    102.48 cents per Ccf
    Locked plans cheaper than standard
    4 of 4

  • Enbridge Gas OhioGas

    Offers listed
    4
    Locked plans
    4
    Its lowest locked price
    $4.69 per Mcf, locked for 12 months
    Standard price
    $3.517 per Mcf
    Locked plans cheaper than standard
    0 of 4

Prices are worked out for a home that uses 1,000 kWh a month, with monthly fees included.

A question or complaint about a company in Ohio? Call Public Utilities Commission of Ohio (PUCO) at 1-800-686-7826 (Monday to Friday, 8 a.m. to 5 p.m.).

PUCO: file a complaint (opens a new tab)

To check that a company may sell energy in Ohio, look for it on the state’s list:

Pennsylvania

43 offers. Lowest locked: electric 13.39 cents per kWh; gas 45.9 cents per therm.Show

  • Duquesne LightElectric

    Offers listed
    4
    Locked plans
    4
    Its lowest locked price
    17.99 cents per kWh, locked for 12 months
    Standard price
    14.14 cents per kWh
    Locked plans cheaper than standard
    0 of 4

  • Met-EdElectric

    Offers listed
    4
    Locked plans
    4
    Its lowest locked price
    15.69 cents per kWh, locked for 12 months
    Standard price
    13.95 cents per kWh
    Locked plans cheaper than standard
    0 of 4

  • PECO EnergyElectric

    Offers listed
    2
    Locked plans
    2
    Its lowest locked price
    13.39 cents per kWh, locked for 12 months
    Standard price
    11.76 cents per kWh
    Locked plans cheaper than standard
    0 of 2

  • PenelecElectric

    Offers listed
    3
    Locked plans
    3
    Its lowest locked price
    14.99 cents per kWh, locked for 12 months
    Standard price
    13.14 cents per kWh
    Locked plans cheaper than standard
    0 of 3

  • Penn PowerElectric

    Offers listed
    3
    Locked plans
    3
    Its lowest locked price
    16.99 cents per kWh, locked for 12 months
    Standard price
    13.48 cents per kWh
    Locked plans cheaper than standard
    0 of 3

  • PPL Electric UtilitiesElectric

    Offers listed
    4
    Locked plans
    4
    Its lowest locked price
    14.99 cents per kWh, locked for 12 months
    Standard price
    13.08 cents per kWh
    Locked plans cheaper than standard
    0 of 4

  • West Penn PowerElectric

    Offers listed
    4
    Locked plans
    4
    Its lowest locked price
    14.79 cents per kWh, locked for 12 months
    Standard price
    12.08 cents per kWh
    Locked plans cheaper than standard
    0 of 4

  • Columbia Gas of PennsylvaniaGas

    Offers listed
    4
    Locked plans
    4
    Its lowest locked price
    45.9 cents per therm, locked for 12 months
    Standard price
    35.34 cents per therm
    Locked plans cheaper than standard
    0 of 4

  • National Fuel GasGas

    Offers listed
    4
    Locked plans
    4
    Its lowest locked price
    63.9 cents per Ccf, locked for 12 months
    Standard price
    54.92 cents per Ccf
    Locked plans cheaper than standard
    0 of 4

  • PECO EnergyGas

    Offers listed
    3
    Locked plans
    3
    Its lowest locked price
    64.9 cents per Ccf, locked for 12 months
    Standard price
    65.05 cents per Ccf
    Locked plans cheaper than standard
    2 of 3

  • Peoples Natural GasGas

    Offers listed
    4
    Locked plans
    4
    Its lowest locked price
    $3.99 per Mcf, locked for 12 months
    Standard price
    $3.575 per Mcf
    Locked plans cheaper than standard
    0 of 4

  • UGI GasGas

    Offers listed
    4
    Locked plans
    4
    Its lowest locked price
    75.9 cents per Ccf, locked for 12 months
    Standard price
    76.65 cents per Ccf
    Locked plans cheaper than standard
    2 of 4

Prices are worked out for a home that uses 1,000 kWh a month, with monthly fees included.

A question or complaint about a company in Pennsylvania? Call Pennsylvania Public Utility Commission (PUC) at 1-800-692-7380 (Check their website for the hours to call.).

PA PUC: informal complaints (opens a new tab)

To check that a company may sell energy in Pennsylvania, look for it on the state’s list:

How to cancel IGS Energy

You can leave IGS Energy by picking another company or by going back to your utility’s standard price. Your power stays on. The rules depend on your state.

The rules in each state

6 statesShow

In Illinois

Electric plans

  • Changed your mind right after you signed up? You have 10 days to cancel for free after your utility mails you a letter about the change.
  • Later on, you can pick another company, or call your utility and say: “I want to go back to your standard electric supply.” Check your next bill or two. After you go back, you may have to stay on the standard price for 12 months.
  • Your contract says if IGS Energy charges a fee to leave early. Look for it before you call.

Gas plans

  • Changed your mind right after you signed up? You have 10 business days to cancel for free after your utility mails you a letter about the change. Weekends and holidays don't count. Call IGS Energy to cancel in that time.
  • Later on, you can pick another company, or call your utility and say: “I want to go back to your gas supply.” Check your next bill or two. The gas company may ask you to stay for a while after you go back.
  • Your contract says if IGS Energy charges a fee to leave early. Look for it before you call.

In Indiana

  • Changed your mind right after you signed up? You have 5 business days to cancel for free after you get the new company's plan papers. This is for sign-ups by phone or email. If you signed papers in person, the company doesn't have to give you this time. Weekends and holidays don't count. Call IGS Energy to cancel in that time.
  • Later on, you can pick another company, or call your utility and say: “I want to go back to NIPSCO's own gas supply.” Going back starts on a regular meter reading. Check your next bill or two. Your supplier may also need to hear from you.
  • Your contract says if IGS Energy charges a fee to leave early. Look for it before you call.

In Massachusetts

  • Changed your mind right after you signed up? You have 3 business days to cancel for free after you get the new company's plan papers. Weekends and holidays don't count. Call IGS Energy to cancel in that time.
  • Later on, you can pick another company, or call your utility and say: “I want to go back to Basic Service.” Check your next bill or two for the Basic Service price.
  • Your contract says if IGS Energy charges a fee to leave early. Look for it before you call.

In Michigan

  • Changed your mind right after you signed up? You have 30 days from the day you sign up to cancel for free. Call IGS Energy to cancel in that time.
  • Later on, you can pick another company, or call your utility and say: “I want to go back to your standard gas price.” Check your next bill or two. After you go back, you have to stay on the gas company's price for 12 months.
  • Your contract says if IGS Energy charges a fee to leave early. Look for it before you call.

In Ohio

Electric plans

  • Changed your mind right after you signed up? You have 7 days to cancel for free after your utility mails you a letter about the change. Call your utility to cancel in that time.
  • Later on, you can pick another company, or call your utility and say: “I want to go back to standard service.” The standard price should show up on your bill in 1 to 2 months. Sometimes it takes 3.
  • Your contract says if IGS Energy charges a fee to leave early. Look for it before you call.

Gas plans

  • Changed your mind right after you signed up? You have 7 business days to cancel for free after your utility mails you a letter about the change. Weekends and holidays don't count. Call your utility to cancel in that time.
  • Later on, you can pick another company, or call your utility and say: “I want to go back to your standard price.” The standard price can take 1 or 2 bills to show up.
  • Your contract says if IGS Energy charges a fee to leave early. Look for it before you call.

In Pennsylvania

Electric plans

  • Changed your mind right after you signed up? You have 3 business days to cancel for free after you get the new company's plan papers. Weekends and holidays don't count. Call IGS Energy to cancel in that time.
  • Later on, you can pick another company, or call your utility and say: “I want to go back to default service.” The change can take about 3 business days. Check your next bill or two.
  • Your contract says if IGS Energy charges a fee to leave early. Look for it before you call.

Gas plans

  • Changed your mind right after you signed up? You have 3 business days to cancel for free after you get the new company's plan papers. Weekends and holidays don't count. Call IGS Energy to cancel in that time.
  • Later on, you can pick another company, or call your utility and say: “I want to go back to default service.” The change back happens when your meter is next read. Check your next bill or two.
  • Your contract says if IGS Energy charges a fee to leave early. Look for it before you call.

Names on the state lists

3 names, as the lists print themShow

The lists print the company under these names:

  • IGS Energy
  • Interstate Gas Supply, Inc.
  • Interstate Gas Supply LLC

More

Other energy companies on the lists

Today’s prices in:

Offers come from the state price lists. We check them every 2 hours.