Temperatures have been warm, why isn’t my bill as low as I thought it would be?
When it’s unseasonably warm and you’re using less natural gas than usual, EEP rates adjust to ensure the company is able to recover the cost of providing safe and reliable service. And if it’s an unseasonably cold winter and the heat needs to stay on longer than usual, EEP limits the amount you’re being charged on the delivery portion of your bill.
Why do I have an EEP Weather Adjustment on my bill?
The EEP Weather Adjustment and EEP Annual Adjustment used to be included in the Usage Charge line item on your bill. Southwest Gas separated these two line items to provide more transparency on your bills.
What makes up the EEP Annual Adjustment?
The total amount of delivery charges received by Southwest Gas is reviewed annually, and any difference between the authorized amount appears on your bill as the EEP Annual Adjustment.
What is the company’s authorized revenue?
The revenue authorized by the Commission is the sum of all the costs associated with providing safe and reliable natural gas service to our customers. This amount is collected through the basic service charge and the delivery charge.
Why does Southwest Gas need the EEP Annual Adjustment?
The EEP Annual Adjustment helps align the interests of Southwest Gas and its customers. The EEP enables Southwest Gas to help its customers save money by using gas more efficiently and saving on the cost of gas, while at the same time allowing the Company to recover the fixed costs of providing gas service that have been approved by the Commission. For help on lowering the amount of gas you use visit
Energy Saving Tips
What makes up the EEP Weather Adjustment?
The EEP Weather Adjustment is part of the delivery charge. The rate per unit of gas sold consists of both gas costs and delivery charges. “Delivery charges” include the routine inspection, maintenance, repair, and upgrade of our infrastructure and pipeline system.
The EEP Weather Adjustment balances the delivery charge portion of your bill to ensure that you only pay for the service you receive. If your usage is lower because of warmer weather, you may see an increase in the EEP, but your overall bill will still be lower because you never pay for gas you do not use as a result of it being warmer. If your usage is higher because of colder weather, you will see a decrease in the EEP to ensure you do not pay more than your fair share of the delivery system.
Where can I find more information on the EEP Annual Adjustment?
The EEP Annual Adjustment is discussed on Sheets 94 through 96 of the Energy Efficiency Enabling Provision of Southwest Gas’ Arizona Gas Tariff and can be found at
Where can I find more information on the EEP Weather Adjustment?
The EEP Weather Adjustment is discussed on Sheets 92 through 94 of Southwest Gas’ Arizona Gas Tariff and can be found at