Southwest Gas Holdings Inc

Electric utilities are the principal competitors of Southwest Gas for the residential and small commercial markets throughout its service areas. Competition for space heating, general household, and small commercial energy needs generally occurs at the initial installation phase when the customer/builder typically makes the decision as to which type of equipment to install and operate. The customer will generally continue to use the chosen energy source for the life of the equipment, meaning that notwithstanding a premise vacancy, customers will continue their service each month and on an ongoing basis. Southwest Gas interfaces with regulators and directly with the various home builders and commercial property developers in its service territories to ensure that natural gas appliances are considered in new developments and commercial centers. As a result of these efforts, Southwest Gas has continued to experience growth in the new construction market among residential and small commercial customer classes. In 2024, Southwest Gas provided natural gas to a large majority of the new homes constructed during the year in the major metropolitan markets composing our service territories.

Certain large commercial, industrial, and electric generation customers have the capability to switch to alternative energy sources. To date, Southwest Gas has been successful in retaining most of these customers by setting rates (subject to conditions of the respective state tariffs) at levels competitive with commercially available alternative energy sources such as electricity and fuel oils. To address potential state policies surrounding electrification and reducing fossil fuels, Southwest Gas has taken steps to align with these efforts by supporting energy efficiency in our jurisdictions, being part of GHG protocols and initiatives in California, partnering on hydrogen blending innovation, and creating new biogas and RNG tariff schedules in Arizona, California, and Nevada. In 2023, the legislature in Nevada passed SB 281 that establishes a long-term planning process for gas utilities before the PUCN. Under SB 281, natural gas utilities are required to file a three-year plan to include current and projected demands, significant projects and investments, energy efficiency and load management programs, and renewable energy and low carbon fuel initiatives. The bill creates an opportunity to seek regulatory pre-approval for certain investments and reinforces natural gas’ role in providing safe, reliable, and affordable energy. Proposed draft regulations are pending final adoption. The first plan under the new law is required to be filed by October 1, 2025. Additionally, Arizona has in place certain protections prohibiting municipalities and counties from banning or restricting natural gas use. Specifically, it prevents municipalities and counties from adopting a code, ordinance, land use regulation, or general or specific plan that would prohibit or have the effect of restricting a person’s or entity’s ability to use the services of a utility provider that is capable and authorized to provide service, and also prevents municipalities and counties from denying a building permit or imposing discriminatory fees or requirements on a building permit based on the utility provider proposed to serve a project. While certain forms of renewable energy initiatives compete with natural gas, the abundance, low cost, resiliency, and reliability of natural gas, as well as the convenience and comfort it provides to our customers, result in competitive advantages across our portfolio of customers. Overall, management does not anticipate any material adverse impact on operating margin from fuel switching or alternative energy initiatives over the near term. See also “Environmental Matters” below.

Southwest Gas competes with interstate transmission pipeline companies, such as El Paso, Kern River, Transwestern, Tuscarora, and Ruby to provide service to certain large end-users. End-use customers located in proximity to these interstate pipelines pose a potential bypass threat. Southwest Gas closely monitors each customer situation and provides competitive service in order to retain the customer. Southwest Gas has remained competitive through the use of negotiated transportation contract rates (subject to conditions of the respective state tariffs), special long-term contracts with electric generation and cogeneration customers, and other tariff programs. These competitive response initiatives have mitigated the loss of operating margin earned from large customers.