Qualla: Kalinin Nuclear Power Plant

Kalinin Nuclear Power Plant: Introduction

Fri, 27 Mar 2026 00:00:00 GMT

Photo credit SergioBS, CC BY-SA 4.0. From the air, the four cooling towers appear first, each 150 meters tall, white plumes of steam trailing into the sky above the dark conifer forests of Tver Oblast. The Kalinin Nuclear Power Station sits near the small town of Udomlya, about 200 kilometers northwest of Moscow, and produces enough electricity to light the capital, Saint Petersburg, Vladimir, and the entire Tver region. Its towers, each assembled from 96 prefabricated concrete sections, have become the dominant landmarks of a landscape otherwise defined by lakes, birch groves, and quiet provincial towns.

Image: SergioBS | CC BY-SA 4.0

Kalinin Nuclear Power Plant: Soviet Ambition on a Lakeside

Fri, 27 Mar 2026 00:00:00 GMT

Photo credit A.Savin, CC BY-SA 3.0. Construction of the Kalinin station began during the Soviet era, when the government pursued an aggressive nuclear energy program to power its vast territory. The site near Udomlya was chosen for its access to cooling water from local lakes and its relative proximity to the enorm...

Image: A.Savin | CC BY-SA 3.0

Kalinin Nuclear Power Plant: The Workings of a Giant

Fri, 27 Mar 2026 00:00:00 GMT

Photo credit SergioBS, CC BY-SA 4.0. The VVER reactor at the heart of each unit operates on principles common to pressurized water reactors worldwide, using enriched uranium fuel to heat water under pressure, which then transfers its energy to a secondary steam loop that drives turbine generators. What distinguishes...

Image: SergioBS | CC BY-SA 4.0

Kalinin Nuclear Power Plant: Unit Four and the Next Generation

Fri, 27 Mar 2026 00:00:00 GMT

Photo credit Sergei2709, CC BY-SA 4.0. The newest reactor, Unit 4, represents the most recent phase of the station's expansion. By March 2009, its containment structure was nearly complete, and the reactor achieved its first criticality on 8 November 2011. The addition brought the station to its current four-unit conf...

Image: Sergei2709 | CC BY-SA 4.0

Kalinin Nuclear Power Plant: Life in the Shadow of the Towers

Fri, 27 Mar 2026 00:00:00 GMT

Photo credit Sergei2709, CC BY-SA 4.0. Udomlya, the nearest town, owes much of its modern character to the power station. Like many Russian nuclear towns, it grew alongside the facility, its economy tied to the plant's operations and its population shaped by the engineers, technicians, and support workers who keep the...

Image: Sergei2709 | CC BY-SA 4.0