Bitcoin power plant is turning a 12,000-year-old glacial lake into a hot tub

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In this aerial photo of Greenidge Generation's power plant outside Dresden, NY, Seneca Lake is visible in the background. The lake receives warm water from Greenidge's operations.
Enlarge / In this aerial photo of Greenidge Generation’s power plant outside Dresden, NY, Seneca Lake is visible in the background. The lake receives warm water from Greenidge’s operations.

The fossil fuel power plant that a private equity firm revived to mine bitcoin is at it again. Not content to just pollute the atmosphere in pursuit of a volatile crypto asset with little real-world utility, this experiment in free marketeering is also dumping tens of millions of gallons of hot water into glacial Seneca Lake in upstate New York.

“The lake is so warm you feel like you’re in a hot tub,” Abi Buddington, who lives near the Greenidge power plant, told NBC News.

In the past, nearby residents weren’t necessarily enamored with the idea of a pollution-spewing power plant warming their deep, cold water lake, but at least the electricity produced by the plant was powering their homes. Today, they’re lucky if a small fraction does. Most of the time, the turbines are burning natural gas solely to mint profits for the private equity firm Atlas Holdings by mining bitcoin.

Atlas, the firm that bought Greenidge has been ramping up its bitcoin mining aspirations over the last year and a half, installing thousands of mining rigs that have produced over 1,100 bitcoin as of February 2021. The company has plans to install thousands more rigs, ultimately using 85 MW of the station’s total 108 MW capacity. 

Seneca Lake’s water isn’t the only thing the power plant is warming. In December 2020, with the power plant running at just 13 percent of its capacity, Atlas’ bitcoin operations there produced 243,103 tons of carbon dioxide and equivalent greenhouse gases, a ten-fold increase from January 2020 when mining commenced. NOx pollution, which is responsible for everything from asthma, lung cancer, and premature death, also rose 10x.

The plant currently has a permit to emit 641,000 tons CO2e every year, though if Atlas wants to maximize its return on investment and use all 106 MW of the plant’s capacity, its carbon pollution could surge to 1.06 million tons per year. Expect NOx emissions—and health impacts—to rise accordingly. The project’s only tangible benefit (apart from dividends appearing in investors’ pockets) are the company’s claimed 31 jobs.

Sparkling specimen

The 12,000-year-old Seneca Lake is a sparkling specimen of the Finger Lakes region. It still boasts high water quality, clean enough to drink with just limited treatment. Its waters are home to a sizable lake trout population that’s large enough to maintain the National Lake Trout Derby for 57 years running. The prized fish spawn in the rivers that feed the lake, and it’s into one of those rivers—the Keuka Lake Outlet, known to locals for its rainbow trout fishing—that Greenidge dumps its heated water. 

Rainbow trout are highly sensitive to fluctuations in water temperature, with the fish happiest in the mid-50s. Because cold water holds more oxygen, as temps rise, fish become stressed. Above 70˚ F, rainbow trout stop growing and stressed individuals start dying. Experienced anglers don’t bother fishing when water temps get to that point.

Greenidge has a permit to dump 135 million gallons of water per day into the Keuka Lake Outlet as hot as 108˚ F in the summer and 86˚ F in the winter. New York’s Department of Environmental Conservation reports that over the last four years, the plant’s daily maximum discharge temperatures have averaged 98˚ in summer and 70˚ in winter. That water eventually makes its way to Seneca Lake, where it can result in tropical surface temps and harmful algal blooms. Residents say lake temperatures are already up, though a full study won’t be completed until 2023.

Casting about for profits

Atlas, the private equity firm, bought the Greenidge power plant in 2014 and converted it from coal to natural gas. The firm initially intended it to be a peaker plant that would sell power to the grid when demand spiked. 

But in the three years that Atlas spent renovating the plant, the world changed. Natural gas, which was once viewed as a bridge fuel, is increasingly being seen as a dead end. Renewable sources like wind and solar continue to plunge in price, so much so that by 2019, the economics of power plants like Greenidge meant that 60% of them didn’t run more than six hours in a row. Today, renewable sources backed by batteries are cheaper than gas-powered peaker plants, and even batteries alone are threatening the fossil behemoths.

Though Atlas spent $60 million retrofitting the old coal plant to run on gas, it didn’t spring for the more advanced combined cycle technology,…



Read More:Bitcoin power plant is turning a 12,000-year-old glacial lake into a hot tub

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