Tag: Ukraine

Piercing the fog of war at Ukraine’s embattled Zaporizhzhia Nuclear Plant

After plumbing Ukraine’s lightning fast leap to unplug from Russia’s power grid and a pair of exposés exposing Russian moles within its nuclear energy utility, my latest reporting on the #EnergyFront refocused coverage of the warfare threatening Europe’s largest nuclear power plant. While domestic and international reporting focused on the terrifying explosions rocking Zaporizhzhia — a perilous game of nuclear roulette — my stories spotlighted efforts by Ukrainian nuclear experts to cancel the game, and thus slash the risk of devastating reactor meltdowns.

Few stories questioned why Zaporizhzhia was still producing power in the middle of a war zone. U.S. reactors proactively shut down when, for example, a hurricane is barreling in. Why was Ukraine’s nuclear utility and energy ministry and nuclear regulator ordering Zaporizhzhia’s operators to do otherwise, and why was its nuclear regulator allowing it? The answer: Ukraine wanted to maximize its power supply to bolster electricity exports to Europe in a bid for political support and badly-needed revenue.

But nuclear experts I spoke to, such as former Chernobyl chief engineer and IAEA board member Nikolai Steinberg, called maintaining nuclear chain reactions at Zaporizhzhia “a crime.” Shutting down, Steinberg and others argued, would cool Zaporizhzhia’s reactors, thus slashing the risk of an accident akin to (or potentially worse than) Japan’s Fukushima disaster.

My first story laid out the experts’ case for a proactive shutdown. For example, I cited an unpublished assessment by Ukraine’s state nuclear-safety center reviewing the risk of a station-wide blackout that would zap the plant’s ability to cool its reactors and pools of spent nuclear fuel (as occurred at Fukushima in 2011). Moving Zaporizhzhia’s reactors to a ‘cold stop’, they found, would reduce accident risk by extending the time between station blackout and reactor core damage from 3 hours to 27 hours, buying crucial time for operators to find workarounds and restart cooling.

Shutting down proactively would also cease the production of short-lived fission products, reducing the harm caused by any reactor breach.

I followed up one week later after shelling (most likely by the Russian forces occupying the plant) forced the entire plant off the grid for the first time since it began operating in 1985, and temporarily shut down two reactors. My story explained how:

  • Repeated damage to Zaporizhzhia’s transmission lines — the electrical umbilical cords linking it to Ukraine’s grid — caused the plant’s reactors to blink on and off the grid.
  • The near misses bolstered calls for an orderly shutdown, even if diesel generators and other emergency systems had averted radiological accidents; and
  • Ukrainian officials continued to restart reactors and power generation rather than heed the warnings.

My story also noted, however, that nuclear experts had scored one win. Ukraine’s nuclear regulator took a symbolic baby step by ordering two reactor units already in cold shutdown to remain offline.

A few days later after that story the White House called for a “controlled shutdown” at Zaporizhzhia. Ukraine’s nuclear utility Energoatom acceded to the growing chorus on September 11.

by pfairley

The Internal Struggle Compounding Ukraine’s Nuclear Peril

There’s a cloak-and-dagger struggle on for control of Ukraine’s nuclear power plants, pitting activist nuclear professionals against alleged Russian agents. I began tracking this opaque battle early in Russia’s invasion when Ukraine’s state security bureau detained the nuclear power utility’s director of personnel. That cast a dark cloud over officials he’d appointed at Energoatom’s headquarters and at the four nuclear power plants that supply over half of Ukraine’s electricity.

Now this spy-vs-spy battle for Ukraine’s nuclear power has leapt from the shadows.

Last month Ukrainian counterintelligence pierced an “extensive agent network” led by the suspect official’s longtime patron: U.S.-sanctioned Russian spy Andriy Derkach, who gained global notoriety passing kompromat on Biden to Trump lawyer Rudy Giuliani in 2019. Then utility CEO Petro Kotin fanned the flames this month in a disastrous appearance before a parliamentary panel. Kotin did not win deputies’ confidence when, for example, he explained that his deputy failed to show for the hearing because he had the day off.

The spectacle prompted Kyiv-based media outlet Glavcom to report that Ukraine’s “Nuclear energy is in danger,” and that a “search for collaborators” was on.

Fears of infiltration add to the instability created by Russia’s unprecedented military assaults on Ukraine’s nuclear reactors. And both threats raise the spectre of accidents that could spread radiation across Europe, and undercutting Ukraine’s ability to defend itself. If the power grid collapses, the country will be in chaos.

Read the full story @IEEE Spectrum

by pfairley

Ukraine’s #EnergyFront

Energy is central to the geopolitics of Russia’s war on Ukraine. Putin thought Europe would let him seize Ukraine because the continent depends so heavily on Russian gas, petroleum and coal. The US is helping turn back Russian aggression not just by pumping weapons into Ukraine, but also by bolstering Europe’s energy supplies and thus facilitating European solidarity.

A substation in Ukraine shelled by Russia. Photo credit: State Emergency Service Of Ukraine.

But there’s also an #EnergyFront within Ukraine, which I’ve been covering for @IEEESpectrum. One flashpoint has been Ukraine’s power grid which was, until the war began, tied to the giant UPS/IPS synchronous AC power zone controlled from Moscow. My report, How Russia Sent Ukraine Racing Into the “Energy Eurozone”, chronicles bold moves in the war’s first weeks that isolated Ukraine’s power system and then plugged it into Europe’s.

Ukraine’s power grid operator made the first move hours before Russian tanks and missiles crossed borders in February. The transmission operators’ European counterparts made the next “heroic” move a few weeks later, stabilizing Ukraine’s power supply even as its attackers destroyed lines, substations and power generators.

Another flashpoint is the battle for control of Ukraine’s nuclear power sector, including the four operating plants that supply over half of the country’s electricity. When Russia invaded, Ukraine remained heavily dependent on Russian suppliers of nuclear fuel, waste handling, and parts. Patriots feared sabotage of nuclear power plants and and their defences, either to facilitate the plants’ seizure by Russian forces or to cause a nuclear incident.

Their fears prove justified when the Russian army attacked and captured Ukraine’s Zaporizhzhya nuclear power plant—Europe’s largest.

My report, Ukraine Scrubbing Nuclear Agencies of Russian Influence, revealed an internal struggle for control of Ukrainian national nuclear power generating company Energoatom whereby several top executives fled the country and a vice president was detained by state security police.

by pfairley