PUCN outlines how Nevada utilities are regulated, how rates and long-range planning work

Stephanie Mullen, executive director of the Public Utilities Commission of Nevada (PUCN), and Garrett Weir, the commission’s general counsel, told the Assembly Committee on Growth and Infrastructure in Carson City that the PUCN regulates electric, natural gas, water, telecommunications and rail safety and that its work balances consumer protection, safety and the need to attract capital for long-lived infrastructure.

The remarks matter because the commission’s rulings determine how utilities recover costs, how much customers pay and how Nevada plans for future electricity, gas and water needs as new industries and extreme weather change demand patterns.

Mullen summarized the PUCN’s scope and structure, saying the agency “regulates approximately 400 investor‑owned utilities” across multiple sectors and partners with federal agencies on safety inspections. She told the committee the commission is a three‑member quasi‑judicial body appointed by the governor and that regulatory staff operate independently from the commissioners. The PUCN is funded by a regulatory fee (a mill assessment) levied on intrastate utility revenues; that cap was set at 3.5 mills in 1980, Mullen said.

Weir described how the PUCN carries out rate cases and resource planning. He explained the basic rate‑setting steps: determine the utility’s revenue requirement for a historical test year, set a reasonable return on capital, and then design rates to allocate the revenue requirement among customer classes. He said fuel and purchased power costs are generally passed through to ratepayers on a dollar‑for‑dollar basis and are adjusted quarterly, with an annual prudence review.

Weir said contested proceedings at the commission include rate cases, resource‑planning dockets and customer complaints. He noted the statutory right for the Bureau of Consumer Protection (in the attorney general’s office) to intervene on behalf of residential ratepayers. “The commission cannot adopt rates that are not just and reasonable,” Weir told members, summarizing the agency’s statutory obligations.

Both presenters described the commission’s resource‑planning role. Weir said the PUCN evaluates 20‑year load forecasts and approves plans tied to long‑lead projects; once the commission approves a project in a resource plan it is generally presumed prudent for cost recovery if executed reasonably. He also gave statutory timelines for PUCN proceedings, noting typical deadlines of 210 days for rate cases and resource plan proceedings and 135 days for the energy‑supply component of a resource plan.

Committee members pressed the presenters on issues now at the forefront in Nevada: growing industrial load (including data centers and artificial‑intelligence demand), whether residential customers could be asked to bear costs for generation or transmission built primarily to serve new industrial customers, and whether extreme heat and wildfire risk are factors in planning. Weir said the commission and staff have been engaging with the governor’s office and economic development stakeholders about planning for large new loads and that the electric utility NV Energy has publicly stated it does not intend residential customers to shoulder undue risk from industrial projects. On extreme heat, Weir said the commission is aware of increased summer cooling demand and the wildfire and drought risks that affect planning and that he would look into whether extreme heat has been treated explicitly in past ‘‘natural disaster protection planning’’ dockets.

Both Mullen and Weir said many regulatory processes are evolving as Nevada’s load patterns change, and they offered to answer committee questions as lawmakers consider whether statutory or procedural changes are needed.

The committee did not take action on PUCN items; members moved on to other agenda items after the presentation.