The sixth edition of Sierra Club’s Dirty Truth report gave Sierra Pacific Power, the NV Energy subsidiary responsible for northern Nevada, a D—the worst result it has received since the organization began tracking utility plans. The report evaluates electric utilities based on the scale of their coal-plant retirements, their plans to add gas plants, and their expansion of renewable energy.
NV Energy serves two main areas in the state: Sierra Pacific Power in the north and Nevada Power in the south. Together, they cover most residential customers in Nevada. The two companies had received positive ratings over the past five years, but this year’s report finds that gas-expansion plans and load-growth projections threaten to undo some of the gains achieved through earlier clean-energy projects.
New Demand Comes from Data Centers
Northern Nevada has become a hub for artificial intelligence data centers, prompting Sierra Pacific Power to plan the addition of more than 2.7 gigawatts of gas-generation capacity by 2035. That is four times the capacity the company had planned for the previous year.
According to NV Energy’s latest filing, data centers currently account for about 5% of the company’s sales, but that share could reach 64% by 2046. The company says its proposal is intended to require data centers to cover their costs and protect other customers from having the burdens shifted onto them, but these mechanisms have not yet taken effect. The Office of the Consumer Advocate also pointed to major gaps in the current proposals in its testimony.
Pressure on Renewable Energy Goals
Nevada residents voted in 2020 to strengthen the state’s renewable portfolio standard, which requires utilities to supply 50% of the state’s needs from renewable sources by 2030. But according to the report, NV Energy has acknowledged that it expects not to meet these requirements.
Sierra Club says that growing reliance on gas to meet demand linked to artificial intelligence could increase electricity costs and delay the transition to cleaner sources. The company, by contrast, argues that load growth requires new arrangements to protect customers from the costs imposed by data centers.
Why Does This News Matter?
The case reveals that the expansion of artificial intelligence infrastructure is not limited to servers and networks, but also directly pressures electricity-system planning. The practical issue in Nevada is determining who will pay for the new capacity: data centers or all customers, as well as deciding whether the rising demand will be met with long-lived gas plants or renewable investments.
The debate is becoming more sensitive after Nevada Power was forced to return $65 million to southern Nevada residents following overcharges collected over two decades. The report does not establish that the new expansion will inevitably lead to higher customer bills, but it shows that ensuring costs are not shifted requires effective rules and actual oversight, not proposals that have not yet been adopted.
Olivia Tanager, director of Sierra Club’s Toiyabe Chapter, criticized the plans to build gas plants, while Chris Bell, a chapter member, said that northern Nevada residents should have a role in determining the shape of growth in their communities. Holly Bender, Sierra Club’s chief program officer, also called on utilities to accelerate renewable-energy deployment and reduce reliance on fossil fuels.