During the 2021 bull market, many large mining companies took on massive loans to buy equipment and the proper infrastructure required to mine cryptoc
During the 2021 bull market, many large mining companies took on massive loans to buy equipment and the proper infrastructure required to mine cryptocurrency. Yet the collapse of crypto exchange FTX and Celsius left many of these companies filing for bankruptcy.
The current bear market, coupled with high Bitcoin network hash rates and low profits, has yet again left the crypto industry wondering if miners will be able to recover from losses. While this remains questionable, it’s become evident that mining companies today are focusing more on alternative energy resources to cut costs, ensure profits and, in some cases, reduce their environmental impact.
Alternative energy sources used by miners
Steven Lubka, managing director for Bitcoin-focused financial services company Swan Bitcoin, told Cointelegraph that while the average rate to mine a single Bitcoin (BTC) is around $26,000, mining companies focused on renewable energy sources are seeing rates between $5,000 and $15,000 per BTC.
A spokesperson for Riot Blockchain, a United States-based publicly traded Bitcoin mining company, told Cointelegraph that wind and solar energy generated across Texas has helped Riot ensure some of the lowest costs to mine crypto. “As stated in our Q2 investor deck, it costs Riot $8,389 to mine 1 Bitcoin,” he said.
Kent Halliburton, president and chief operating officer of Sazmining — a hosted Bitcoin mining provider — told Cointelegraph that the biggest expense for mining has always been electricity:
“Bitcoin miners are naturally incentivized to find the lowest-cost power. Excess electricity is the lowest priced. With renewables, there is often excess electricity, which makes it a perfect fit for Bitcoin mining.”
Halliburton added that independently sourced data from the Bitcoin Mining Council shows that the Bitcoin network may indeed be one of the most sustainable industries. According to the source, 59% of mining operations are carbon-free and growing at a rate of nearly 4.5% per year.
“All of our mining operations in Wisconsin and Paraguay are utilizing excess hydroelectricity,” he said.
The shift to alternative energy sources seems to be a trend for miners thinking about long-term success. Phil Harvey, CEO of crypto mining infrastructure provider Sabre56, told Cointelegraph that the company is currently working with dozens of mining companies to get machines set up across Sabre56’s three facilities located in Wyoming and Ohio.
Harvey explained that Sabre56’s facility in Gillette, Wyoming — known as “Bonepile” — hosts nearly 2,200 mining machines that are powered by a combination of energy sources, including a material contribution from renewable energy. The 5,200-square-foot site draws on Basin Electric’s mixed energy portfolio. According to Basin Electric’s website, this includes 24% wind, 0.6% recovered energy and 4.3% hydro, which adds up to 28.9% renewables.
Harvey said, “The machines at our Bonepile site consist of a mixture of MicroBT Whatsminer M50s and Bitmain Antminer S19s. In terms of the site design and methodology, we leverage a forced-air design, meaning air is forced into the facility to cool the machines.”
According to Harvey, the Bonepile facility is designed to ensure surplus air provision. Harvey explained that this method reduces overheating and strain on the mining equipment while also allowing the miners to naturally exhaust hot air through overpressure.
“This is different from the standard design widespread in the mining industry, which is often extracting the hot air with an additional mechanism while not having a system in place to aid air into the facility,” he remarked.
OceanBit, a company developing renewable energy platforms using ocean thermal sources, is taking a different approach. Michael Bennett, co-founder of OceanBit, told Cointelegraph that the company is integrating Bitcoin mining into its ocean thermal energy power plant design. “This will allow us to balance variable loads, deliver power faster to offshore operations, and monetize excess energy to improve plant profitability,” he explained.
According to Bennett, ocean thermal energy is the largest untapped energy source on the planet. “It’s a base load source of renewable energy, like hydro or geothermal, but uses the temperature difference in ocean water to generate electricity.”
Bennett believes Bitcoin is the missing piece needed to scale the energy source to global adoption since it solves a number of ocean thermal energy conversion (OTEC) commercial challenges.
Nathaniel Harmon, co-founder and CEO of OceanBit, elaborated, “The byproduct of OTEC generation process is four degrees Celsius cold water, which makes it ideal for cooling ASICs, while the byproduct of ASICs is low…
cointelegraph.com
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