Rates and Riders
General Rate Plans
General Service
Rate 4 is appropriate for commercial and industrial customers ranging from small users to those with annual use less than 800,000 therms. Rate 4 customers purchase all natural gas supplies from Nicor Gas.
General Transportation Service
The customer profile for Rate 74 is the same as Rate 4, however, customers arrange for purchases from another source and contract with Nicor Gas for varying storage options. Rate 74 is one of our "unbundled" rates because customers can select storage levels.
Seasonal Use Rates and Riders
Seasonal Use Service
Rate 5 is appropriate for commercial and industrial customers with annual use less than 700,000 therms and with winter period use totaling no more than 5 percent of annual usage. Rate 5 customers purchase all natural gas supplies from Nicor Gas.
Seasonal Use Transportation Service
The customer profile is the same as Rate 5, however, customers arrange for purchases from another source and contract with Nicor Gas for varying storage options. Rate 75 is one of our "unbundled" rates because customers can select storage levels.
Large Volume Commercial and Industrial Options
Large General Service
Rate 6 is economical for large commercial and industrial customers with annual loads greater than 800,000 therms and high load factors. This rate has a minimum monthly bill of $7,100, excluding gas costs. Customers purchase all natural gas supplies from Nicor Gas.
Large Volume Service
Industrial customers with a monthly use greater than 800,000 therms may find this rate most economical. Rate 7 has a minimum monthly bill of $20,300, excluding gas costs, and is dependent on load factor. A detailed analysis by the customer account executive can determine whether Rate 6 or 7 is more appropriate.
Rate Book Information
Rates and Riders
Nicor Gas has its Rates and Riders on file with the Illinois Commerce Commission (ICC) and they are also listed in our Schedule of Rates for Gas Service (ICC No. 16) – also called our Rate Book. A number of Riders on file with the ICC are updated monthly, including Rider 6 – the Gas Supply Cost (GSC). Updates to information sheets are posted on the first of each month.
Current Rates & Riders
Rate 1 - Residential Service
Rate 4 - General Service
Rate 5 - Seasonal Use Service
Rate 6 - Large General Service
Rate 7 - Large Volume Service
Rate 10 - Compressed Natural Gas - CANCELED
Rate 11 - Energy Service - CANCELED
Rate 17 - Contract Service
Rate 19 - Contract Service for Electric Generation
Rate 21 - Interruptible Transportation and Storage Services
Rate 74 - General Transportation Service
Rate 75 - Seasonal Use Transportation Service
Rate 76 - Large General Transportation Service
Rate 77 - Large Volume Transportation Service
Rate 81 - General Renewable Gas Interconnection Service Pilot
Rate 82 - General Renewable Gas Interconnection Service
Associated Riders
Rider 1 – Customer Charge Adjustment
Rider 1 History – History of Utility Assessment Recovery Charge Information Sheets
Rider 1 History – History of Supplemental Low-Income Energy Assistance Fund Information Sheets
Rider 1 Info – Supplemental Low-Income Energy Assistance Fund Information Sheet
Rider 1 Info – Utility Assessment Recovery Charge Information Sheet
Rider 2 – Franchise Cost Adjustment
Rider 2 History – History of Franchise Cost Adjustment Information Sheets
Rider 2 Info – Franchise Cost Adjustment Information Sheets
Rider 3 – Invested Capital Tax Adjustment
Rider 3 History – History of Invested Capital Tax Adjustment Information Sheet
Rider 3 Info – Invested Capital Tax Adjustment Information Sheet
Rider 4 – Gas Cost Performance Program - CANCELED
Rider 5 – Storage Service Cost Recovery
Rider 5 History – History of Rider 5 Information Sheets
Rider 5 Info – Storage Service Cost Recovery Information Sheet
Rider 6 – Gas Supply Cost
Rider 6 History – History of Rider 6 Information Sheets
Rider 6 Info – Gas Supply Cost Information Sheet
Rider 7 – Governmental Agency Compensation Adjustment
Rider 7 History – History of Rider 7 Information Sheets
Rider 7 Info – Governmental Agency Compensation Adjustment Information Sheet
Rider 8 – Adjustments for Municipal and State Utility Taxes
Rider 8 History – History of Rider 8 Information Sheets
Rider 8 Info – Adjustments for Municipal and State Utility Taxes Information Sheets
Rider 9 – Air Conditioning Service - CANCELED
Rider 10 – Alternate Fuel Service - CANCELED
Rider 11 – Thermal Content of Gas Supplied
Rider 11 History – History of Rider 11 Information Sheets
Rider 11 Info – Thermal Content of Gas Supplied Information Sheet
Rider 12 – Environmental Cost Recovery
Rider 12 History – History of Rider 12 Information Sheets
Rider 12 Info – Environmental Cost Recovery Information Sheet
Rider 13 – Supplier Transportation Service
Rider 14 – Controlled Attachment Plan
Rider 15 – Customer Select Program
Rider 16 – Supplier Aggregation Service
Rider 25 – Firm Transportation Service
Rider 26 – Uncollectible Expense Adjustment
Rider 26 History – History of Rider 26 Information Sheets
Rider 26 Info – Uncollectible Expense Adjustment Information Sheet
Rider 28 – Residential Payment Assistance Programs
Rider 29 – Energy Efficiency Plan
Rider 29 History – History of Rider 29 Information Sheets
Rider 29 Info – Energy Efficiency Plan Information Sheet
Rider 30 – Energy Efficiency Plan Cost Recovery
Rider 30 History - History of Rider 30 Information Sheets
Rider 30 Info - Energy Efficiency Plan Cost Recovery Information Sheet
Rider 31 - On-Bill Financing Program
Rider 32 - Qualified Infrastructure Plant
Rider 32 History - History of Rider 32 Information Sheet
Rider 32 Info - Qualified Infrastructure Plant Information Sheet
Rider 33 - Designated Extension Service Area
Rider 33 Info – Designated Extension Service Area Information Sheet
Rider 34 - Supplier Firm Transportation Service
Rider 36 - Variable Income Tax Adjustment
Rider 36 History - History of Variable Income Tax Adjustment Information Sheet
Rider 36 Info – Variable Income Tax Adjustment Information Sheet
Rider 38 - Volume Balancing Adjustment
Rider 38 History – History of Rider 38 Information Sheet
Rider 38 Info – Volume Balancing Adjustment Information Sheet
Rider 39 – Special Purpose Charge - CANCELED
Rider 39 History – History of Rider 39 Information Sheet
Rider 39 Info – Special Purpose Charge Information Sheet
Rider 40 – TotalGreen
Rider 40 History – History of TotalGreen Information Sheet
Rider 40 Info – TotalGreen Information Sheet
Rider 42 – Low Income Discount Adjustment
Rider 42 History – History of Low Income Discount Adjustment Sheets
Rider 42 Info – Low Income Discount Adjustment Information Sheet
