The AP1000 Masterclass

Fan favourite, James Krellenstein, returns for a deep dive into the AP1000. We walk through how its conservative nuclear steam supply system is built from proven Westinghouse and Combustion Engineering lineage, and where its true innovation lies, in a radically passive safety architecture that removes the traditional race against diesel generators during LOCAs and station blackouts. From core makeup tanks and automatic depressurization to canned pumps, the in containment refueling water storage tank, the passive residual heat removal system and a containment that behaves like a heat exchanger, James explains how the AP1000 achieves passive safety and demonstrates the dynamism of the U.S Nuclear Regulatory Commission. This is an unvarnished look at a remarkable nuclear engineering achievement. Listen to Decouple on: • Spotify: • Apple Podcasts: • Overcast: • Pocket Casts: • RSS: Website:

You can listen to The AP1000 Masterclass online on Radio and Podcast. Open the player on this page to stream the available audio.

The AP1000 Masterclass is an episode from Decouple by Dr. Chris Keefer.

This episode is 01:08:58 long.

This episode was published on Nov 18, 2025.

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