James Krellenstein (@jbkrell) 's Twitter Profile
James Krellenstein

@jbkrell

nuclear power, hiv+mpx+covid (previously), energy, physicist by training, gay

ID: 842678603305377793

calendar_today17-03-2017 10:06:50

4,4K Tweet

3,3K Followers

1,1K Following

Nick Touran (@whatisnuclear) 's Twitter Profile Photo

An amazing film depicting General Atomic's development of the Peach Bottom High Temperature Gas-cooled Reactor (HTGR) in Pennsylvania. 53 private utilities banded together to fund the prototype reactor. The film shows a beautiful model of Peach Bottom, the reactor under

Josh Barro (@jbarro) 's Twitter Profile Photo

There already is a liberal Rogan: Bill Maher. Of course, liberals fail to see Maher as such, because they crave the sort of top-down message-discipline that Rogan does not -- and cannot -- offer to conservatives.

Nick Touran (@whatisnuclear) 's Twitter Profile Photo

Everyone says nuclear power is over-regulated. With word of the big nuclear EOs looming, I spent a few weeks talking to people in the nuclear industry to find out which reforms they thought would be most helpful, and which they were nervous about. Here are the top 12 (a🧵...)

Brett Rampal (@beazy_rampezy) 's Twitter Profile Photo

Why is this person so smart and insightful when so many people that are SUPPOSED to be more informed (like some nuclear company leaders) act so ignorantly?

Tyler Norris (@tylerhnorris) 's Twitter Profile Photo

If it’s confirmed that MISO’s rolling blackouts were tied in part to an unplanned nuclear outage, that doesn’t mean nuclear power is inherently unreliable or that we should stop investing in it.

If it’s confirmed that MISO’s rolling blackouts were tied in part to an unplanned nuclear outage, that doesn’t mean nuclear power is inherently unreliable or that we should stop investing in it.
Xiao Wang (@xiaowang1984) 's Twitter Profile Photo

People are saying you need more transmission. But are you really gonna build more transmission for the off case that you have N-2 on maintenance, possibly N-2-1 when it's also possible that an alternative dispatch schedule would have worked as well? That said more solar capacity

Xiao Wang (@xiaowang1984) 's Twitter Profile Photo

Pretty naive analysis here tbh. We are in 2025 so far beyond the simple analysis of a copperplate network meeting average yearly demand when the real costs and unknowns for solar investors is the network upgrades that are necessary and the price crashing in markets where there is

Jeff Waksman (@waksman84) 's Twitter Profile Photo

I don't know who needs to hear this, but if your nuclear reactor doesn't have fissile material in it then it's not actually a nuclear reactor.

James Krellenstein (@jbkrell) 's Twitter Profile Photo

.Noah Smith 🐇 proving once again he doesn’t understand the most basic facts about electricity. Nuclear generated 790 TWh in 2024 and wind/solar generated 757 TWh in 2024. Like jeez just check ember

Westinghouse Nuclear (@wecnuclear) 's Twitter Profile Photo

🏳️‍🌈 With pride flags flying high at Westinghouse in June, we're recognizing our LGBTQIA+ colleagues and allies worldwide. This month, Westinghouse employees in western Pennsylvania have celebrated #PrideMonth from the #PittsburghPride March in downtown Pittsburgh to friendship

🏳️‍🌈 With pride flags flying high at Westinghouse in June, we're recognizing our LGBTQIA+ colleagues and allies worldwide.

This month, Westinghouse employees in western Pennsylvania have celebrated #PrideMonth from the #PittsburghPride March in downtown Pittsburgh to friendship
Adam Stein (@dr_a_stein) 's Twitter Profile Photo

The unprecedented step to remove Commissioner Hanson from the NRC could upend the current bipartisan support for nuclear energy. A return to partisan polarization will almost certainly cripple efforts to make progress. thebreakthrough.org/press/release-…

Adam Stein (@dr_a_stein) 's Twitter Profile Photo

The NRC prevailed on the Interim Storage of spent fuel. The Supreme Court found that Texas and Fasken Land and Minerals did not meet the standard of an aggrieved party and overturned the decision of the 5th Circuit court.

The NRC prevailed on the Interim Storage of spent fuel. The Supreme Court found that Texas and Fasken Land and Minerals did not meet the standard of an aggrieved party and overturned the decision of the 5th Circuit court.
W. Robb Stewart (@nuclear_robb) 's Twitter Profile Photo

Learning-by-doing, the sought after but never achieved cost-reduction path for new nuclear. Let's unpack some key factors that chris keefer and I discussed on Decouple Media:

James Krellenstein (@jbkrell) 's Twitter Profile Photo

Since 2018, Seqyoah 1 and 2 have an average capacity factor of 89% and 87% respectively. Dare we ask Ed, if that is not "reliable 24/7 baseload" power, what other source of clean baseload operates at that capacity factor or higher?

NRC (@nrcgov) 's Twitter Profile Photo

#NRCAdvisory: We've published a direct final rule to extend the duration of reactor design certifications from 15 to 40 years. federalregister.gov/d/2025-12396

#NRCAdvisory: We've published a direct final rule to extend the duration of reactor design certifications from 15 to 40 years. federalregister.gov/d/2025-12396