Louisville Gas and Electric Company and Kentucky Utilities announced on April 30, 2026, that they’re teaming up with X-energy—a NASDAQ-listed advanced nuclear reactor developer—to study whether small modular reactors could be deployed in Kentucky.
The two utilities, both subsidiaries of PPL Corporation, say early feasibility activities are already underway. Their focus: long-term grid reliability and the rising electricity needs of large load customers, including data centers.
Utilities and X-energy launch SMR feasibility study in Kentucky
LG&E and KU made it official on April 30, 2026, kicking off a collaboration with X-energy to assess whether the Xe-100 small modular reactor can be deployed somewhere in the Commonwealth. The partnership is still in its earliest stage — the companies describe it as “early project feasibility activities” — but the direction is clear enough.
Two broad use cases are on the table. One is supporting overall grid reliability across Kentucky. The other is meeting the power demands of large-load customers—data centers, specifically—that are already setting up shop in LG&E and KU service territories.
Why Kentucky utilities are turning to nuclear energy now
Electricity demand in Kentucky is climbing, and utilities need baseload options that run around the clock regardless of weather. Nuclear fits that description in a way solar and wind simply don’t — it’s dispatchable and indifferent to sunlight or wind speed.
Data centers are a big part of the pressure. These facilities need stable, long-term power supply, and they’re landing in LG&E and KU territory in real numbers. Intermittent sources can’t easily serve that kind of load. As for the specific reactor under study, LG&E and KU president John R. Crockett III called the Xe-100 “one of the safest nuclear designs on the market “today”—a Generation 4 design that emphasizes passive safety features and simpler operations compared to older reactor types.
New Kentucky law provides $75 million in grants to support nuclear site readiness
The LG&E–KU–X-energy collaboration didn’t come out of nowhere. It follows a wave of nuclear-friendly policy moves in Frankfort, the most recent being a law Governor Andy Beshear signed in April 2026.
That legislation — the Nuclear Reactor Site Readiness Pilot Program — allocates $75 million in grants to support nuclear development in the state. Three projects can be selected, each eligible for up to $25 million. Eligible expenses include feasibility studies, early site permitting applications, construction permitting, and licensing costs.
Regulated utilities also get a path to recover permitting and licensing expenses not already covered by existing rates. They can apply to the Kentucky Public Service Commission for that cost recovery — a provision that takes some of the financial risk out of pursuing nuclear development before any reactor gets built. Crockett mentioned the pilot program directly in the announcement, signaling that LG&E and KU may go after one of those grant slots.
What the Xe-100 reactor is and how it would be deployed
The Xe-100 is an 80 MWe high-temperature gas-cooled reactor. Unlike traditional nuclear plants, it’s factory-built and assembled on-site—an approach meant to simplify construction and bring costs down.
Deployment scale is flexible. A four-unit plant delivers 320 MWe, which works well for regional utilities and large load customers, while a twelve-unit configuration can reach gigawatt-scale output, making it viable for larger metro areas or hyperscale data infrastructure.
There’s a practical upside worth noting: each unit can come online independently. A utility doesn’t have to wait for an entire plant to finish before generating power. Capacity can be phased in as demand grows—which lines up with how data center expansion tends to work. X-energy is currently developing more than 11 GW of nuclear capacity across the U.S. and U.K., with existing partners that include Dow Chemical, Amazon, and Centrica.
Kentucky’s broader nuclear policy push provides regulatory context
The LG&E–KU announcement is one piece of a larger policy picture Kentucky has been assembling for a couple of years. In 2024, the state established the Kentucky Nuclear Energy Development Authority, a non-regulatory body created to support the nuclear ecosystem in the Commonwealth.
The Kentucky Public Service Commission then opened a formal case in 2025 to investigate nuclear energy and determine how the state would regulate its development. That groundwork matters—nuclear projects need regulatory clarity before anyone makes serious investment decisions.
Even so, this collaboration isn’t a construction commitment. LG&E and KU describe it explicitly as part of an “all-of-the-above” generation strategy, and no timeline for a final deployment decision has been announced. For now, the work stays focused on feasibility — figuring out whether nuclear fits into the utilities’ long-term plans before any shovel hits the ground.
Kelly is an experienced writer with 15 years of experience exploring the big stories that shape our world, from tech breakthroughs and space exploration to climate, energy, and the fascinating quirks of science. She has a talent for turning complex ideas into sharp, memorable insights that stay with readers long after they’ve finished reading.
