Rates & Services
Why natural gas?
According to the U.S. Census Bureau, here are just a few of the reasons home buyers prefer homes heated with natural gas:
- Natural gas is more economical
Gas can significantly cut your energy bills, depending on where you live and your energy usage.
- Natural gas is efficient
Using gas directly for space heat, water heating, cooking, and drying decreases our region’s demand for electricity.
- Natural gas is reliable and convenient
Gas is delivered directly to your home through underground piping and will not leave you stranded in inclement weather as electricity can. Using natural gas means no storage tanks, no running out, and no waiting for delivery as with oil and propane.
- Natural gas is environmentally friendly
Clean-burning natural gas is the most efficient fossil fuel available and the least taxing on the environment.
Commercial or Industrial Business Usage
Interested in natural gas information for commercial and large commercial business usage? Use the links below to determine which information best suits your gas needs.
Are you: A commercial business using less than 2,000 therms a day and less than 200,000 therms annually click here.
Are you: An industrial and large commercial business using 200,000 therms or more annually click here.
What should your rate classification be?
GS-1 (General Service): Small commercial or light industrial business will be billed for natural gas service under the GS-1 tariff.
How are natural-gas rates determined?
Per Therm Charge – The Per Therm Charge is the actual cost of the natural gas purchased from suppliers plus the cost of transporting that gas through various pipelines in Intermountain’s system then delivering the gas to customers. The gas cost portion of the Per Therm Charge is trued-up in an annual Purchased Gas Adjustment (PGA) mechanism.
Customer Charge – The Customer Charge helps to recover a small portion of costs incurred to provide service to your home or business.
What is included in the cost of gas?
A PGA is a method of reconciling or “truing-up” the prices Intermountain pays for purchasing and transporting natural gas to customers with the rates that are charged for the gas that is delivered. The first part of this process involves looking ahead and establishing the best projected price of natural gas in the upcoming year. The second part looks back and calculates the difference between the previous projected price and the actual price. Sometimes that difference is positive and the customer receives a credit. If the difference is negative, a surcharge is applied to the bill.
The price Intermountain pays for natural gas fluctuates daily, yet the rates charged to the customer are normally adjusted only once each year through the PGA mechanism. Intermountain’s earnings do not change as a result of a proposed rate change reflected in a PGA.
What is included in the cost of delivery?
The cost of transportation, storage and distribution of natural gas includes the maintenance of pipelines, meters and other equipment. It also encompasses the cost of billing customers and allows for a moderate level of profit for Intermountain’s investment in the local distribution system. Any request for higher rates is reviewed by the Idaho Public Utilities Commission.
Intermountain Gas Company
|The following cost comparisons for Natural Gas space heating vs. other energy sources are based on the current average therm consumption for all IGC RS customers (742 therms per year).
The Electricity comparison is based on 110% Efficiency of Electric equipment and current published rates as of 04/01/2022.
Based on Intermountain Gas prices approved 10/01/2021
|Energy Source||Efficiency||Annual Energy Cost||Monthly Energy Cost||Savings With Gas|
|IGC Natural Gas Space Heat||80%||$513.10||$42.76|
|Idaho Power Resistance Space Heat||110%||$1,458.26||$121.52||65%|
|City of Idaho Falls Resistance Space Heat||110%||$997.97||$83.16||49%|
|Rocky Mountain Power Resistance Space Heat||110%||$1,794.14||$149.51||71%|
|Oil Space Heat @ $2.69/Gal||80%||$2,020.71||$168.39||75%|
|Propane Space Heat @ $1.66/Gal||82%||$2,098.26||$174.85||76%|