Southwest Gas Holdings Inc
For the period ended Dec 31, 2024. Filed Feb 26, 2025.
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FY2024 · Filed Feb 26, 2025
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General Description
Southwest Gas is subject to regulation by the ACC, the PUCN, and the CPUC. These commissions regulate public utility rates, practices, facilities, and service territories in their respective states. The CPUC also regulates the issuance of all debt securities by Southwest Gas, with the exception of short-term borrowings. Certain accounting practices, transmission facilities, and rates are subject to regulation by the FERC. Centuri, by contrast, is not rate regulated by the state utilities commissions or by the FERC in any of its operating areas.
As of December 31, 2024, Southwest Gas purchased and distributed or transported natural gas to approximately 2,258,000 residential, commercial, and industrial customers in geographically diverse portions of Arizona, Nevada, and California. Southwest Gas added 41,000 first-time meter sets during 2024.
The table below lists the percentage of operating margin (operating revenues less net cost of gas) by major customer class for the years indicated:
| Distribution | |||
|---|---|---|---|
| For the Year Ended December 31, | Residential andSmall Commercial | Other SalesCustomers | Transportation |
| 2024 | 85% | 4% | 11% |
| 2023 | 85% | 4% | 11% |
| 2022 | 85% | 4% | 11% |
Southwest Gas is not dependent on any one or a few customers such that the loss of any one or several would have a significant adverse impact on earnings or cash flows.
Transportation of customer-secured gas to end-users accounted for 42% of total system throughput in 2024, but represents only 11% of operating margin as shown in the table above. Customers who utilized this service transported 93 million dekatherms in 2024, 86 million dekatherms in 2023, and 93 million dekatherms in 2022.
The demand for natural gas is seasonal, with greater demand in the colder winter months and decreased demand in the warmer summer months. It is the opinion of management that comparisons of earnings for interim periods do not reliably reflect overall trends and changes in operations due to this seasonality. The decoupled rate mechanisms in place in the three state service territories, as described below, are structured with seasonal variations. Also, earnings for interim, or any, periods can be significantly affected by the timing of general rate relief.
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