Nation's First Nuclear Power Plant in Nearly Half a Century Breaks Ground in Wyoming

Microsoft co-founder Bill Gates had shovel-in-hand for the groundbreaking of his company's small-scale nuclear power plant in Kemmerer, Wyoming, on June 10.

2 minute read

June 19, 2024, 7:00 AM PDT

By Irvin Dawid


Close-up on map of Kemmerer, Wyoming.

Gary L Hider / Adobe Stock

It was in 1978, 46 years ago, that the Shearon Harris Nuclear Power Plant in North Carolina began construction.

Unlike the Harris Nuclear Plant, which had a capacity of 860 megawatts when built, the pilot Natrium nuclear power plant in Kemmerer “is designed to generate a consistent 345 megawatts of power — enough energy to power about 250,000 homes — with a capability of ramping up to 500 megawatts for short periods, according to the Bellevue, Washington-based TerraPower,” reported Dustin Bleizeffer, who covers energy and climate for WyoFile, on June 10.

Rather than the industry’s existing standard of massive nuclear power plants that consume a lot of water, Natrium is much smaller and will use liquid sodium to cool the reactor.

Construction of the small modular reactor, posted here in November 2021, was delayed by the unprovoked invasion of Ukraine by Russia three months later, resulting in legislation last month affecting the fuel supply. Gates, appearing on CBS's Face the Nation on June 9, “noted that...suppliers in the United Kingdom and South Africa, along with an eventual supply from uranium mines in the U.S. and Canada will allow the project to go forward.”

A final note by Bleizeffer on the importance of the plant to Wyoming and a sign of the transition to cleaner fuels for the nation's largest coal-producing state.

The $4 billion construction project is also considered an economic lifeline for southwest Wyoming, particularly the adjacent towns of Kemmerer and Diamondville, a region impacted by fossil fuels’ decline. 

Hat tip to Sammy Roth, climate columnist for the Los Angeles Times newsletter, Boiling Point.

Monday, June 10, 2024 in WyoFile

Young Professional

I love the variety of courses, many practical, and all richly illustrated. They have inspired many ideas that I've applied in practice, and in my own teaching. Mary G., Urban and Environmental Planner

I love the variety of courses, many practical, and all richly illustrated. They have inspired many ideas that I've applied in practice, and in my own teaching.

Mary G., Urban and Environmental Planner

Get top-rated, practical training for planners

Overlapping highways

The state-sanctioned urbicide of Austin

People don’t kill cities. Freeways do.

September 8, 2026 - Benjamin Schneider

The Hoover Dam blocking the Colorado River. The river's water level is noticeably low. The cliffs surrounding the blue water are brown and jagged.

US to reduce Colorado River water deliveries to Mexico

A new Colorado Treaty amendment reduces Mexico’s Colorado River water allocation by 250,000 acre feet.

September 11, 2026 - The Arizona Republic

Skyscrapers in Jersey City.

New Jersey’s second-largest city bans standalone data centers

Jersey City will continue to allow co-location facilities, such as those meant for research institutions that store their own data.

September 4, 2026 - The Cool Down

A New Jersey train approaches people waiting at the station.

Amtrak not solely to blame for New Jersey commuter rail's unreliability, report finds

A new study from the Garden State Initiative found that NJ Transit’s budget grew 20% across a 4 year period, but reliability declined significantly over the same period.

September 15 - Mass Transit

A tall, gray power plant billows smoke into a blue sky.

EPA erases limits on planet-warming pollution from power plants

Under Monday’s plan, power plants would still have some limits on how much mercury, arsenic and other contaminants they can emit.

September 15 - New York Times

A white RAPID bus. The lower half is light blue, and says RAPID in purple text. The bus is half visible, appearing from the left side of the image.

Phoenix announces new on-demand transit service, more frequent RAPID buses

Both new services will launch in October, and are part of Phoenix's Project Effective Access Solutions for Easing Congestion.

September 15 - KJZZ

FREE Course: Walkable City 1: Why Walkability?

After describing his path towards focusing on walkability as the essence of good planning, Jeff Speck marches through his five principal reasons for making more walkable places.

Reinventing Malls: Planning Alchemy—Turning Gray Fields Into Gold

The course focuses on the opportunities and imperatives that shape reinvention of mall sites.