Over the past three years, some of the country's biggest utilities have been committing to weaning themselves off carbon-emitting generation by 2050, reported a September 16 story from Green Tech Media (GTM).

Here's a look at the five largest U.S. utilities by market capitalization that have set net-zero targets so far:

While there has been some good news recently regarding the historically troubled nuclear new-build project at the Vogtle site in Waynesboro, Ga. (see here and here), the latest news on the subject does not fall into that category.

The Blue Ridge Environmental Defense League (BREDL), a North Carolina–based antinuclear organization, is claiming that Vogtle-3—one of two 1,100-MWe AP1000 pressurized water reactors currently under construction at the Vogtle nuclear plant near Waynesboro, Ga.—is sinking.

The CB-20 module being installed at Vogtle-3. Photo: Georgia Power

A massive water tank has been placed atop the containment vessel and shield building roof at Vogtle-3, one of two AP1000 reactors currently under construction at Southern Company’s nuclear expansion project near Waynesboro, Ga. The installation represents the final module placement for the unit and marks the latest significant milestone to be reached at the Vogtle site.

Vogtle-3’s integrated head package. Photo: Georgia Power

Southern Company subsidiary Georgia Power has placed the integrated head package (IHP) atop the Unit 3 reactor vessel at the Vogtle nuclear expansion project near Waynesboro, Ga., marking the latest major milestone in the construction of the first new U.S. nuclear reactors in more than 30 years.

The Vogtle-3 containment vessel in March. Photo: Georgia Power

Despite its recent decision to trim the workforce at the Vogtle reactor construction project by about 20 percent to better address the COVID-19 pandemic, Southern Company is confident that Units 3 and 4—twin AP 1000 pressurized water reactors—will be up and running according to schedule.

As a result of the COVID-19 crisis, Georgia Power Company is reducing the number of workers at its Vogtle-3 and -4 construction site, in Waynesboro, Ga., by approximately 20 percent, according to a recent joint Securities and Exchange Commission filing by the company and parent firm Southern Company.

Ongoing efforts to deal with the coronavirus pandemic could hinder progress at the reactor construction project currently under way at the Vogtle nuclear plant near Waynesboro, Ga., according to a Southern Company report filed on April 1 with the Securities and Exchange Commission.