Big tech companies need lots of electricity for their data centers, which are processing increasingly complex artificial intelligence applications.

Adds share movement Amazon.com (NASDAQ:AMZN) has said it will continue to back a deal for an Amazon Web Services data center in Pennsylvania powered by Talen Energy's (NASDAQ:TLN) nuclear power plant.

The Federal Energy Regulatory Commission (FERC) denied an amended Interconnection Service Agreement (ISA) that would have given Amazon a boost in its data

The Federal Energy Regulatory Commission (FERC) rejected an effort Friday to allow an Amazon data center to tap into additional power from a nearby Pennsylvania nuclear plant. The decision could throw a wrench in efforts by large technology companies to secure so-called “behind the meter” power from nuclear plants as they seek to meet

The US Federal Energy Regulatory Commission (FERC) has rejected a proposal that would have allowed an Amazon data centre

Talen Energy Corp. and other US power company stocks slumped in pre-market trading Monday following the rejection by the country’s top energy regulator of Talen’s plan to supply a data center.

Talen said it believed FERC had erred and was evaluating its options. The company can still restructure its expanded deal with Amazon, according to Oppenheimer analysts.

The proposal would have boosted the amount of electricity coming from the Pennsylvania power plant from 300 megawatts to 480 megawatts.