Why in news?
A Nevada utility has told Liberty Utilities, the company that supplies electricity to the California side of Lake Tahoe, that it will end about 75 percent of its power supply by May 2027. The power will be diverted to meet the growing demand from AI data centres being built in neighbouring Nevada. The decision affects roughly 49,000 residents and businesses in Lake Tahoe and has sparked public concern about rising energy costs and grid reliability.
Background
Lake Tahoe is a deep alpine lake that straddles the border between the U.S. states of California and Nevada. Formed about two million years ago, it is known for its clear blue water and attracts visitors for skiing, hiking and other outdoor activities. Electricity for the region is mainly supplied by Liberty Utilities, which buys a large portion of its power from NV Energy in Nevada. In recent years Nevada has become a hub for data centres built by companies like Google, Apple and Microsoft. These facilities require enormous amounts of electricity to run servers and cooling systems.
Main points
- Power cut: NV Energy has notified Liberty Utilities that it will stop supplying most of the electricity it currently provides to Lake Tahoe by May 2027. This is because the utility needs the capacity for data centres in the Tahoe–Reno Industrial Center east of Reno.
- Impact on residents: Around 49,000 customers on the California side of Lake Tahoe rely on Liberty Utilities. They will have less than a year to find alternative power sources. Residents worry about higher rates and potential disruptions.
- Growing demand: Data centres consumed about 22 percent of Nevada’s electricity in 2024, and estimates suggest that share could reach 35 percent by 2030. Twelve planned projects in northern Nevada could add about 5,900 megawatts of new demand by 2033. This rapid growth is driving utilities to redirect power away from residential areas.
- Broader trend: Across the United States, AI data centres are expected to triple their share of electricity consumption from 4.4 percent in 2023 to 12 percent by 2028. Rising demand from data centres is pushing homeowners to adopt solar panels and battery systems to ensure reliable power.
