Monticello nuclear plant finishing up repairs

By Associated Press


Electrical Testing & Commissioning of Power Systems

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Xcel Energy says power has been restored to two transformers at its nuclear plant in Monticello.

Officials have been working to restore the plant to full electricity production since September 11, when a breaker on a transformer that feeds electricity to the plant failed.

And on September 17, the plant declared unusual event status after an employee of an equipment rental company was fatally injured after coming in contact with a power line.

Xcel Energy says in a news release that operators at the Monticello facility expect to complete repairs soon and return the plant to full power within a few days.

Xcel says the plant's status with the U.S. Nuclear Regulatory Commission has gone back to normal.

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Britain's National Grid Drops China-Based Supplier Over Cybersecurity Fears

National Grid Cybersecurity Component Removal signals NCSC and GCHQ oversight of critical infrastructure, replacing NR Electric and Nari Technology grid control systems to mitigate supply chain risk, cyber threats, and blackout risk.

 

Key Points

A UK move to remove China-linked grid components after NCSC/GCHQ advice, reducing cyber and blackout risks.

✅ NCSC advice to remove NR Electric components

✅ GCHQ-linked review flags critical infrastructure risks

✅ Aims to cut blackout risk and supply chain exposure

 

Britain's National Grid has started removing components supplied by a unit of China-backed Nari Technology's from the electricity transmission network over cybersecurity fears, reflecting a wider push on protecting the power grid across critical sectors.

The decision came in April after the utility sought advice from the National Cyber Security Center (NCSC), a branch of the nation's signals intelligence agency, Government Communications Headquarters (GCHQ), amid campaigns like the Dragonfly campaign documented by Symantec, the newspaper quoted a Whitehall official as saying.

National Grid declined to comment citing "confidential contractual matters." "We take the security of our infrastructure very seriously and have effective controls in place to protect our employees and critical assets, while preparing for an independent operator transition in Great Britain, to ensure we can continue to reliably, safely and securely transmit electricity," it said in a statement.

The report said an employee at the Nari subsidiary, NR Electric Company-U.K., had said the company no longer had access to sites where the components were installed, at a time when utilities worldwide have faced control-room intrusions by state-linked hackers, and that National Grid did not disclose a reason for terminating the contracts.

It quoted another person it did not name as saying the decision was based on NR Electric Company-U.K.'s components that help control and balance the grid, respond to work-from-home demand shifts, and minimize the risk of blackouts.

It was unclear whether the components remained in the electricity transmission network, the report said, amid reports of U.S. power plant breaches that have heightened vigilance.

NR Electric Company-U.K., GCHQ and the Chinese Embassy in London did not immediately respond to requests for comment outside of business hours.

Britain's Department for Energy Security and Net Zero said that it did not comment on the individual business decisions taken by private organizations. "As a government department we work closely with the private sector to safeguard our national security, and to support efforts to fast-track grid connections across the network," it said in a statement.
 

 

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Ontario Providing Support for Industrial and Commercial Electricity Consumers During COVID-19

Ontario Global Adjustment Deferral provides COVID-19 relief to industrial and commercial electricity consumers, holding GA charges at pre-COVID levels, aligning Class A and Class B rates, and deferring non-RPP costs from April to June 2020.

 

Key Points

An emergency measure that defers a portion of GA charges to stabilize electricity bills for non-RPP Class A/B consumers.

✅ Holds GA near pre-COVID levels at $115/MWh for Class B.

✅ Applies equal percentage relief to Class A customers.

✅ Deferred costs recovered over 12 months from Jan 2021.

 

Through an emergency order passed today, the Ontario government is taking steps to defer a portion of Global Adjustment (GA) charges for industrial and commercial electricity consumers that do not participate in the Regulated Price Plan for the period starting from April 2020, at a time when Toronto's growing electricity needs require careful planning. This initiative is intended to provide companies with temporary immediate relief on their monthly electricity bills, as utilities use AI to adapt to shifting electricity demands in April, May and June 2020. The government intends to keep this emergency order in place until May 31, 2020, and subsequent regulatory amendments would, if approved, provide for the deferral of these charges for June 2020 as well.

This relief will prevent a marked increase in Global Adjustment charges due to the low electricity demand caused by the COVID-19 outbreak. Without this emergency order, a small industrial or commercial consumer (i.e., Class B) could have seen bills increase by 15 per cent or more. This emergency order will hold GA rates in line with pre-COVID-19 levels, even as clean energy initiatives in British Columbia accelerate across the sector.

"Ontario's industrial and commercial electricity consumers are being impacted by COVID-19. They employ thousands of hardworking Ontarians, and we know this is a challenging time for them," said Greg Rickford, Minister of Energy, Northern Development and Mines. "This would provide immediate financial support for more than 50,000 companies when they need it most: as they do their part to stop the spread of COVID-19 and as they prepare to help get our economy moving again with Toronto preparing for a surge in electricity demand in the years ahead."

Quick Facts

  • The GA rate for smaller industrial and commercial consumers (i.e., Class B) has been set at $115 per megawatt-hour, which is roughly in line with the March 2020 value, alongside efforts to develop IoT security standards for electricity sector devices today. Large industrial and commercial consumers (i.e., Class A) will receive the same percentage reduction in GA charges as Class B consumers.
  • Subject to the approval of subsequent amendments, deferred costs would be recovered over a 12-month period beginning in January 2021, amid increasing exposure to harsh weather across Canadian grids.

 

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3 Reasons Why Cheap Abundant Electricity Is Getting Closer To Reality

Renewable Energy Breakthroughs drive quantum dots solar efficiency, Air-gen protein nanowires harvesting humidity, and cellulose membranes for flow batteries, enabling printable photovoltaics, 24/7 clean power, and low-cost grid storage at commercial scale.

 

Key Points

Advances like quantum dot solar, Air-gen, and cellulose flow battery membranes that improve clean power and storage.

✅ Quantum dots raise solar conversion efficiency, are printable

✅ Air-gen harvests electricity from humidity with protein nanowires

✅ Cellulose membranes cut flow battery costs, aid grid storage

 

Science never sleeps. The quest to find new and better ways to do things continues in thousands of laboratories around the world. Today, the global economy is based on the use of electricity, and one analysis shows wind and solar potential could meet 80% of US demand, underscoring what is possible. If there was a way to harness all the energy from the sun that falls on the Earth every day, there would be enough of electricity available to meet the needs of every man, woman, and child on the planet with plenty left over. That day is getting closer all the time. Here are three reasons why.

Quantum Dots Make Better Solar Panels
According to Science Daily, researchers at the University of Queensland have set a new world record for the conversion of solar energy to electricity using quantum dots — which pass electrons between one another and generate electrical current when exposed to solar energy in a solar cell device. The solar devices they developed have beaten the existing solar conversion record by 25%.

“Conventional solar technologies use rigid, expensive materials. The new class of quantum dots the university has developed are flexible and printable,” says professor Lianzhou Wang, who leads the research team. “This opens up a huge range of potential applications, including the possibility to use it as a transparent skin to power cars, planes, homes and wearable technology. Eventually it could play a major part in meeting the United Nations’ goal to increase the share of renewable energy in the global energy mix.”

“This new generation of quantum dots is compatible with more affordable and large-scale printable technologies,” he adds. “The near 25% improvement in efficiency we have achieved over the previous world record is important. It is effectively the difference between quantum dot solar cell technology being an exciting prospect and being commercially viable.” The research was published on January 20 in the journal Nature Energy.

Electricity From Thin Air
Science Daily also reports that researchers at UMass Amherst also have interesting news. They claim they created a device called an Air-gen, short for air powered generator. (Note: recently we reported on other research that makes electricity from rainwater.) The device uses protein nanowires created by a microbe called Geobacter. Those nanowires can generate electricity from thin air by tapping the water vapor present naturally in the atmosphere. “We are literally making electricity out of thin air. The Air-gen generates clean energy 24/7. It’s the most amazing and exciting application of protein nanowires yet,” researchers Jun Yao and Derek Lovely say. There work was published February 17 in the journal Nature.

The new technology developed in Yao’s lab is non-polluting, renewable, and low-cost. It can generate power even in areas with extremely low humidity such as the Sahara Desert. It has significant advantages over other forms of renewable energy including solar and wind, Lovley says, because unlike these other renewable energy sources, the Air-gen does not require sunlight or wind, and “it even works indoors,” a point underscored by ongoing grid challenges that slow full renewable adoption.

Yao says, “The ultimate goal is to make large-scale systems. For example, the technology might be incorporated into wall paint that could help power your home. Or, we may develop stand-alone air-powered generators that supply electricity off the grid, and in parallel others are advancing bio-inspired fuel cells that could complement such devices. Once we get to an industrial scale for wire production, I fully expect that we can make large systems that will make a major contribution to sustainable energy production. This is just the beginning of a new era of protein based electronic devices.”

Improved Membranes For Flow Batteries From Cellulose
Storing energy is almost as important to decarbonizing the environment as making it in the first place, with the rise of affordable solar batteries improving integration.  There are dozens if not hundreds of ways to store electricity and they all work to one degree or another. The difference between which ones are commercially viable and ones that are not often comes down to money.

Flow batteries — one approach among many, including fuel cells for renewable storage — use two liquid electrolytes — one positively charged and one negatively charged — separated by a membrane that allows electrons to pass back and forth between them. The problem is, the liquids are highly corrosive. The membranes used today are expensive — more than $1,300 per square meter.

Phys.org reports that Hongli Zhu, an assistant professor of mechanical and industrial engineering at Northeastern University, has successfully created a membrane for use in flow batteries that is made from cellulose and costs just $147.68 per square meter. Reducing the cost of something by 90% is the kind of news that gets people knocking on your door.

The membrane uses nanocrystals derived from cellulose in combination with a polymer known as polyvinylidene fluoride-hexafluoropropylene.  The naturally derived membrane is especially efficient because its cellular structure contains thousands of hydroxyl groups, which involve bonds of hydrogen and oxygen that make it easy for water to be transported in plants and trees.

In flow batteries, that molecular makeup speeds the transport of protons as they flow through the membrane. “For these materials, one of the challenges is that it is difficult to find a polymer that is proton conductive and that is also a material that is very stable in the flowing acid,” Zhu says.

Cellulose can be extracted from natural sources including algae, solid waste, and bacteria. “A lot of material in nature is a composite, and if we disintegrate its components, we can use it to extract cellulose,” Zhu says. “Like waste from our yard, and a lot of solid waste that we don’t always know what to do with.”

Flow batteries can store large amounts of electricity over long periods of time — provided the membrane between the storage tanks doesn’t break down. To store more electricity, simply make the tanks larger, which makes them ideal for grid storage applications where there is often plenty of room to install them. Slashing the cost of the membrane will make them much more attractive to renewable energy developers and help move the clean energy revolution forward.

The Takeaway
The fossil fuel crazies won’t give up easily. They have too much to lose and couldn’t care less if life on Earth ceases to exist for a few million years, just so long as they get to profit from their investments. But they are experiencing a death of a thousand cuts. None of the breakthroughs discussed above will end thermal power generation all by itself, but all of them, together with hundreds more just like them happening every day, every week, and every month, even as we confront clean energy's hidden costs across supply chains, are slowly writing the epitaph for fossil fuels.

And here’s a further note. A person of Chinese ancestry is the leader of all three research efforts reported on above. These are precisely the people being targeted by the United States government at the moment as it ratchets up its war on immigrants and anybody who cannot trace their ancestry to northern Europe. Imagine for a moment what will happen to America when researchers like them depart for countries where they are welcome instead of despised. 

 

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Covid-19 crisis hits solar and wind energy industry

COVID-19 Impact on US Renewable Energy disrupts solar and wind projects, dries up tax equity financing, strains supply chains, delays construction, and slows jobs growth amid limited federal stimulus and uncertain investor appetite.

 

Key Points

COVID-19 has slowed US clean energy growth by curbing tax equity, disrupting supply chains, and delaying projects.

✅ Tax equity dries up as investor profits fall

✅ Supply chain and construction face pandemic delays

✅ Policy aid and credit extensions sought by industry

 

Swinerton Renewable Energy had everything it needed to build a promising new solar farm in Texas. It lined up more than 2,000 acres for the $109 million project estimated to generate 400 jobs while under construction. By its completion date, the solar farm was expected to produce 200 megawatts of energy — enough to power about 25,000 homes — and generate big tax breaks for its investors as part of a government program to incentivize clean energy.

But the coronavirus pandemic put everything on hold. The solar farm’s backers aren’t sure they will make enough money from other investments during the pandemic-fueled downturn for those tax breaks to be worth it. So the project has been delayed at least six months.

“This is not a shortage of materials. It is not a pricing issue,” said George Hershman, president of Swinerton Renewable Energy. “Everything was pointing to successful projects.”

The coronavirus crisis is not only battering the oil and gas industry. It’s drying up capital and disrupting supply chains for businesses trying to move the country toward cleaner sources of energy.

While President Trump has promised lifelines for airlines and oil companies struggling with a drastic decrease in demand as Americans remain under stay-at-home orders, there is little focus in Washington on economic relief for this sector, despite a power coalition's call for action to address the pandemic — unlike during the Great Recession a decade ago, when Congress and the Obama administration earmarked an unprecedented sum for renewable energy and more efficient automobiles in a stimulus bill.

“We don’t want to lose our great oil companies,” Trump said during an April 1 news briefing. He so far has not made a similar promise to help wind and solar firms, and none of the four economic rescue and stimulus packages that Congress has passed to respond to the coronavirus crisis set aside any money for renewable energy specifically.

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The impact of the crisis is already clear: About 106,000 clean-energy workers have already filed for unemployment in March alone, according to an analysis of Bureau of Labor Statistics data by Environmental Entrepreneurs, an advocacy group.

The layoffs are a blow to a sector that has prided itself on official projections that solar installers and wind turbine technicians would be the two fastest growing occupations over the next decade.

The job losses include not just wind and solar construction workers, but also those assembling electric cars and installing energy-efficient appliances, lighting, heating and air conditioning.

“These aren’t left-wing coastal hippies,” said Bob Keefe, executive director of Environmental Entrepreneurs. “These are construction workers who get up every day and lace up their boots and pull on their gloves and go to work putting insulation in our attics.”

Despite the economic turmoil, climate experts say the coronavirus pandemic could be an opportunity to make drastic shifts in the energy landscape, with green investments potentially driving a robust recovery. They say governments around the world should help fund renewable energy and use the turmoil in energy markets to remake the industry and slash carbon dioxide emissions, which will tumble 8 percent this year, according to the International Energy Agency.

The agency said that while global energy demand fell 3.8 percent in the first quarter, renewables were the only source to post an increase in demand, rising 1.5 percent thanks to new renewable power plants, low operating costs and priority on some electricity grids.

But many investors, who rely on a broad mix of investments, are spooked. “Everything is quiet because people want to see where we land with the current crisis, and people are holding on to cash,” said Daniel Klier, the global head of sustainable finance at HSBC bank. “As soon as people have a bit of confidence that the market is recovering, they can get projects going.”

Social distancing and the country’s stay-at-home orders are also having a deep effect on daily operations. The areas hardest hit are installing solar panels on rooftops and adding energy-efficiency measures inside homes — work that often requires face-to-face interactions. Sungevity, once one of the nation’s leading solar-installation companies, laid off 377 workers, most of its workforce, in late March, according to filings with California’s Employment Development Department. The company, which had emerged from a 2017 bankruptcy, cited economic conditions.

The push to promote a more fuel-efficient automobile fleet has also veered off track. The electric car maker Tesla was forced to shut down its factory in Fremont, Calif., just as it was turning up production on its new crossover vehicle, the Model Y.

Lockdown orders across the country led Tesla’s outspoken chief executive, Elon Musk, to launch into an expletive-laden rant during an earnings call last week in which Tesla posted a lukewarm profit of $16 million.

“To say that they cannot leave their house and they will be arrested if they do,” Musk said, “this is fascist.”

Sungevity and Tesla represent only a sliver of the economic pain in this sector across the country. The Solar Energy Industries Association had anticipated a growth in solar jobs, from 250,000 to 300,000, over the course of the year, said the group’s president, Abigail Ross Hopper. Now, she said, half the workforce is at risk.

“Shelter in place puts limitations on how people can work,” she said. “Literally, people don’t want other people inside their houses to fix electrical boxes. And there are no door-to-door sales.”

Bigger projects are also grappling with the pandemic economy, though not as severely. Hopper said the industry was geared up to increase the number of new solar farms, in part to take advantage of federal tax credits. “We were on track to do almost 20 gigawatts, which would have been the highest year yet,” Hopper said. That would have been enough to power about 3.7 million homes. Now she expects new projects will come closer to last year’s 13.27 gigawatts’ worth of new construction, after a report on utility-scale solar delays warned of widespread slowdowns, enough to run approximately 2.5 million homes.

Wind energy companies, too, are bracing for lost progress unless the federal government steps in. The American Wind Energy Association said projects that would add 25 gigawatts of wind power to the U.S. grid are at risk of being scaled back or canceled outright over the next two years because of the pandemic. Altogether, that work represents about 35,000 jobs.

“2019 was a good year for the wind industry,” said Tom Kiernan, the association’s chief executive. “We were expecting 2020 to be an even stronger year.”

One project put on the back burner: an enormous 9 gigawatt offshore wind venture led by the New York State Energy Research and Development Authority set to be completed by 2035.

With New York City besieged by coronavirus cases, the authority said it would comply with an executive order from Gov. Andrew M. Cuomo (D), “pausing” all on-site work on clean-energy projects until at least May 15. Michigan, New Jersey and Pennsylvania also delayed wind turbine projects by deeming construction on them nonessential.

The Danish offshore wind firm Orsted said that plans for offshore U.S. wind installations would move “at a slower pace than originally expected due to a combination of the Bureau of Ocean Energy Management’s prolonged analysis of the cumulative impacts from the build-out of US offshore wind projects, and now also COVID-19 effects.” The company told investors it expects delays on projects off the coasts of New York, New Jersey and Rhode Island totaling almost 3 gigawatts.

The supply chains have also taken a hit during the pandemic: Even if contractors can get the money to erect wind turbines or lay solar arrays, that doesn’t mean they will have the parts. At least two factories that make wind turbine parts — one in North Dakota and another in Iowa — were forced to pause production because of coronavirus outbreaks. Factory shutdowns in China have constrained solar supplies, too.

The key reason for delaying most big solar and wind projects is the use of tax credits known as “tax equity.” These allow investors, such as banks, to use the credits to directly offset their overall tax burdens. But if an investor doesn’t have enough profit to offset the credits, the tax equity could become worthless.

“If your profitability is going down, you don’t have the same appetite,” Hopper said.

Solar and wind industry leaders are pressing Congress and the Trump administration to extend the eligibility period for tax credits that are due to expire, with senators urging support for clean energy in relief packages, and to make the tax credits refundable, meaning the government would issue a check to investors who do not have enough profit to justify their investments.

Currently, big wind turbines get a 1.5 cents per kilowatt hour tax credit if construction begins before the end of this year. Tax credits for residential renewable energy — solar panels and small wind — phase out by the end of 2021, and debate over a potential solar ITC extension continues to shape expectations in the wind market.

The lack of attention to renewables in Congress’s relief efforts so far is in stark contrast to 2009, when the United States spent $112 billion to boost “green” energy, according to the World Resources Institute. The government’s package then provided a mixture of grants and loans for a variety of renewable energy ventures — including a $465 million loan Tesla used to get its Fremont factory off the ground.

This year, a handful of clean-energy firms, including a Connecticut-based manufacturer of fuel cells and an Ohio-based maker of energy-efficient lighting systems, took money from a federal small-business lending program, before funds ran dry in the middle of last month. Broadwind Energy, a maker of steel wind energy towers based outside Chicago, received $9.5 million in small-business loans, one of the biggest totals in the program.

So far, the Trump administration has shown far more eagerness to help American petroleum producers that the president said were “ravaged” by a sharp drop in energy demand. Last month, Trump met with oil executives at the White House, and Energy Secretary Dan Brouillette has floated the idea of bridge loans for struggling oil firms.

During negotiations for the last relief package, congressional Democrats tried to strike a deal to refill the nation’s Strategic Petroleum Reserve in exchange for extending the clean-energy incentives, but Senate Majority Leader Mitch McConnell (R-Ky.) rebuffed those calls.

“Democrats won’t let us fund hospitals or save small businesses unless they get to dust off the Green New Deal,” McConnell said in March.

Already, Democrats are signaling they will make a push again in the next round of stimulus spending.

“Relief and recovery legislation will shape our society for years to come,” said Rep. A. Donald McEachin (D-Va.), vice chair of the House Sustainable Energy and Environment Coalition, a caucus that supports renewable energy resources. “We must use these bills to build in a climate-smart way.”

But it remains unclear how much appetite the GOP will have for a deal. “I just don’t know how to handicap that at this point,” said Grant Carlisle, an analyst at the Natural Resources Defense Council, a major environmental group.

Kiernan, the head of the American Wind Energy Association, said his group has “gotten a very good reception with the administration and with the Hill” when it comes to coronavirus relief, but he declined to go into specifics.

In other parts of the world, governments have been providing support for renewables. The European Union has its own Green New Deal, and China is expected to support wind and solar to get the economy moving more quickly.

Some energy analysts note that big oil companies don’t have to wait for government stimulus. The price of oil is so low that they would be better off investing in wind and solar, they say.

“For all these oil companies, the returns on these renewable projects are better than what they can do in the oil and gas industry,” said Sarah Ladislaw, director of the energy program at the Center for Strategic and International Studies. “Now is a good time to do that and tell their investors.”

This fits in with their broader goals, analysts contend. After all, Royal Dutch Shell recently matched BP’s earlier promise to aim to be net-zero for carbon emissions by 2050.

Shell’s chief executive Ben van Beurden has said the company would try to protect its low-carbon Integrated Gas and New Energies division from the largest spending cuts as it sought to weather the pandemic. “We must maintain focus on the long term,” he said in a video message. “Society expects nothing less.”

 

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Electricity deal clinches $100M bitcoin mining operation in Medicine Hat

Medicine Hat Bitcoin Mining Deal delivers 42 MW electricity to Hut 8, enabling blockchain data centres, cryptocurrency mining expansion, and economic diversification in Alberta with low-cost power, land lease, and rapid construction near Unit 16.

 

Key Points

A pact to supply 42 MW and lease land, enabling Hut 8's blockchain data centres and crypto mining growth in Alberta.

✅ 42 MW electricity from city; land lease near Unit 16

✅ Hut 8 expands to 60.7 MW; blockchain data centres

✅ 100 temporary jobs; 42 ongoing roles in Alberta

 

The City of Medicine Hat has agreed to supply electricity and lease land to a Toronto-based cryptocurrency mining company, at a time when some provinces are pausing large new crypto loads in a deal that will see $100 million in construction spending in the southern Alberta city.

The city will provide electric energy capacity of about 42 megawatts to Hut 8 Mining Corp., which will construct bitcoin mining facilities near the city's new Unit 16 power plant.

The operation is expected to be running by September and will triple the company's operating power to 60.7 megawatts, Hut 8 said, amid broader investments in new turbines across Canada.

#google#

"The signing of the electricity supply agreement and the land lease represents a key component in achieving our business plan for the roll-out of our BlockBox Data Centres in low-cost energy jurisdictions," said the company's board chairman, Bill Tai, in a release.

"[Medicine Hat] offers stable, cost-competitive utility rates and has been very welcoming and supportive of Hut 8's fast-paced growth plans."

In bitcoin mining operations, rows upon rows of power-consuming computers are used to solve mathematical puzzles in exchange for bitcoins and confirm crytopcurrency transactions. The verified transactions are then added to the public ledger known as the blockchain.

Hut 8's existing 18.7-megawatt mining operation at Drumheller, Alta. — a gated compound filled with rows of shipping containers housing the computers — has so far mined 750 bitcoins. Bitcoin was trading Tuesday morning for about $11,180.

Medicine Hat Mayor Ted Clugston says the deal is part of the city's efforts to diversify its economy.

We've made economic development a huge priority down here because we were hit very, very hard by the oil and gas decline," he said, noting that being the generator and vendor of its own electricity puts the city in a uniquely good position.

"Really we're just turning gas into electricity and they're taking that electricity and turning it into blockchain, or ones and zeroes."

Elsewhere in Canada, using more electricity for heat has been urged by green energy advocates, reflecting broader electrification debates.

Hut 8 says construction of the facility is starting right away and will create about 100 temporary jobs. The project is expected to be finished by the third-quarter of this year.

The Medicine Hat mining operation will generate 42 ongoing jobs for electricians, general labourers, systems technicians and security staff.

 

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The Great Debate About Bitcoin's Huge Appetite For Electricity Determining Its Future

Bitcoin Energy Debate examines electricity usage, mining costs, environmental impact, and blockchain efficiency, weighing renewable power, carbon footprint, scalability, and transaction throughput to clarify stakeholder claims from Tesla, Square, academics, and policymakers.

 

Key Points

Debate on Bitcoin mining's power use, environmental impact, efficiency, and scalability versus alternative blockchains.

✅ Compares energy intensity with transaction throughput and system outputs.

✅ Weighs renewables, stranded power, and carbon footprint in mining.

✅ Assesses PoS blockchains, stablecoins, and scalability tradeoffs.

 

There is a great debate underway about the electricity required to process Bitcoin transactions. The debate is significant, the stakes are high, the views are diverse, and there are smart people on both sides. Bitcoin generates a lot of emotion, thereby producing too much heat and not enough light. In this post, I explain the importance of identifying the key issues in the debate, and of understanding the nature and extent of disagreement about how much electrical energy Bitcoin consumes.

Consider the background against which the debate is taking place. Because of its unstable price, Bitcoin cannot serve as a global mainstream medium of exchange. The instability is apparent. On January 1, 2021, Bitcoin’s dollar price was just over $29,000. Its price rose above $63,000 in mid-April, and then fell below $35,000, where it has traded recently. Now the financial media is asking whether we are about to experience another “cyber winter” as the prices of cryptocurrencies continue their dramatic declines.

Central banks warns of bubble on bitcoins as it skyrockets
As bitcoins skyrocket to more than $12 000 for one BTC, many central banks as ECB or US Federal ... [+] NURPHOTO VIA GETTY IMAGES
Bitcoin is a high sentiment beta asset, and unless that changes, Bitcoin cannot serve as a global mainstream medium of exchange. Being a high sentiment beta asset means that Bitcoin’s market price is driven much more by investor psychology than by underlying fundamentals.

As a general matter, high sentiment beta assets are difficult to value and difficult to arbitrage. Bitcoin qualifies in this regard. As a general matter, there is great disagreement among investors about the fair values of high sentiment beta assets. Bitcoin qualifies in this regard.

One major disagreement about Bitcoin involves the very high demand for electrical power associated with Bitcoin transaction processing, an issue that came to light several years ago. In recent months, the issue has surfaced again, in a drama featuring disagreement between two prominent industry leaders, Elon Musk (from Tesla and SpaceX) and Jack Dorsey (from Square).

On one side of the argument, Musk contends that Bitcoin’s great need for electrical power is detrimental to the environment, especially amid disruptions in U.S. coal and nuclear power that increase supply strain.  On the other side, Dorsey argues that Bitcoin’s electricity profile is a benefit to the environment, in part because it provides a reliable customer base for clean electric power. This might make sense, in the absence of other motives for generating clean power; however, it seems to me that there has been a surge in investment in alternative technologies for producing electricity that has nothing to do with cryptocurrency. So I am not sure that the argument is especially strong, but will leave it there. In any event, this is a demand side argument.

A supply side argument favoring Bitcoin is that the processing of Bitcoin transactions, known as “Bitcoin mining,” already uses clean electrical power, power which has already been produced, as in hydroelectric plants at night, but not otherwise consumed in an era of flat electricity demand across mature markets.

Both Musk and Dorsey are serious Bitcoin investors. Earlier this year, Tesla purchased $1.5 billion of Bitcoin, agreed to accept Bitcoin as payment for automobile sales, and then reversed itself. This reversal appears to have pricked an expanding Bitcoin bubble. Square is a digital transaction processing firm, and Bitcoin is part of its long-term strategy.

Consider two big questions at the heart of the digital revolution in finance. First, to what degree will blockchain replace conventional transaction technologies? Second, to what degree will competing blockchain based digital assets, which are more efficient than Bitcoin, overcome Bitcoin’s first mover advantage as the first cryptocurrency?

To gain some insight about possible answers to these questions, and the nature of the issues related to the disagreement between Dorsey and Musk, I emailed a series of academics and/or authors who have expertise in blockchain technology.

David Yermack, a financial economist at New York University, has written and lectured extensively on blockchains. In 2019, Yermack wrote the following: “While Bitcoin and successor cryptocurrencies have grown remarkably, data indicates that many of their users have not tried to participate in the mainstream financial system. Instead they have deliberately avoided it in order to transact in black markets for drugs and other contraband … or evade capital controls in countries such as China.” In this regard, cyber-criminals demanding ransom for locking up their targets information systems often require payment in Bitcoin. Recent examples of cyber-criminal activity are not difficult to find, such as incidents involving Kaseya and Colonial Pipeline.

David Yermack continues: “However, the potential benefits of blockchain for improving data security and solving moral hazard problems throughout the financial system have become widely apparent as cryptocurrencies have grown.” In his recent correspondence with me, he argues that the electrical power issue associated with Bitcoin “mining,” is relatively minor because Bitcoin miners are incentivized to seek out cheap electric power, and patterns shifted as COVID-19 changed U.S. electricity consumption across sectors.

Thomas Philippon, also a financial economist at NYU, has done important work characterizing the impact of technology on the resource requirements of the financial sector. He has argued that historically, the financial sector has comprised about 6-to-7% of the economy on average, with variability over time. Unit costs, as a percentage of assets, have consistently been about 2%, even with technological advances. In respect to Bitcoin, he writes in his correspondence with me that Bitcoin is too energy inefficient to generate net positive social benefits, and that energy crisis pressures on U.S. electricity and fuels complicate the picture, but acknowledges that over time positive benefits might be possible.

Emin Gün Sirer is a computer scientist at Cornell University, whose venture AVA Labs has been developing alternative blockchain technology for the financial sector. In his correspondence with me, he writes that he rejects the argument that Bitcoin will spur investment in renewable energy relative to other stimuli. He also questions the social value of maintaining a fairly centralized ledger largely created by miners that had been in China and are now migrating to other locations such as El Salvador.

Bob Seeman is an engineer, lawyer, and businessman, who has written a book entitled Bitcoin: The Mother of All Scams. In his correspondence with me, he writes that his professional experience with Bitcoin led him to conclude that Bitcoin is nothing more than unlicensed gambling, a point he makes in his book.

David Gautschi is an academic at Fordham University with expertise in global energy. I asked him about studies that compare Bitcoin’s use of energy with that of the U.S. financial sector. In correspondence with me, he cautioned that the issues are complex, and noted that online technology generally consumes a lot of power, with electricity demand during COVID-19 highlighting shifting load profiles.

My question to David Gautschi was prompted by a study undertaken by the cryptocurrency firm Galaxy Digital. This study found that the financial sector together with the gold industry consumes twice as much electrical power as Bitcoin transaction processing. The claim by Galaxy is that Bitcoin’s electrical power needs are “at least two times lower than the total energy consumed by the banking system as well as the gold industry on an annual basis.”

Galaxy’s analysis is detailed and bottom up based. In order to assess the plausibility of its claims, I did a rough top down analysis whose results were roughly consistent with the claims in the Galaxy study. For sake of disclosure, I placed the heuristic calculations I ran in a footnote.1 If we accept the Galaxy numbers, there remains the question of understanding the outputs produced by the electrical consumption associated with both Bitcoin mining and U.S. banks’ production of financial services. I did not see that the Galaxy study addresses the output issue, and it is important.

Consider some quick statistics which relate to the issue of outputs. The total market for global financial services was about $20 trillion in 2020. The number of Bitcoin transactions processed per day was about 330,000 in December 2020, and about 400,000 in January 2021. The corresponding number for Bitcoin’s digital rival Ethereum during this time was about 1.1 million transactions per day. In contrast, the global number of credit card transactions per day in 2018 was about 1 billion.2

Bitcoin Value Falls
LONDON, ENGLAND - NOVEMBER 20: A visual representation of the cryptocurrencies Bitcoin and Ethereum ... [+] GETTY IMAGES
These numbers tell us that Bitcoin transactions comprise a small share, on the order of 0.04%, of global transactions, but use something like a third of the electricity needed for these transactions. That said, the associated costs of processing Bitcoin transactions relate to tying blocks of transactions together in a blockchain, not to the number of transactions. Nevertheless, even if the financial sector does indeed consume twice as much electrical power as Bitcoin, the disparity between Bitcoin and traditional financial technology is striking, and the experience of Texas grid reliability underscores system constraints when it comes to output relative to input.  This, I suggest, weakens the argument that Bitcoin’s electricity demand profile is inconsequential because Bitcoin mining uses slack electricity.

A big question is how much electrical power Bitcoin mining would require, if Bitcoin were to capture a major share of the transactions involved in world commerce. Certainly much more than it does today; but how much more?

Given that Bitcoin is a high sentiment beta asset, there will be a lot of disagreement about the answers to these two questions. Eventually we might get answers.

At the same time, a high sentiment beta asset is ill suited to being a medium of exchange and a store of value. This is why stablecoins have emerged, such as Diem, Tether, USD Coin, and Dai. Increased use of these stable alternatives might prevent Bitcoin from ever achieving a major share of the transactions involved in world commerce.

We shall see what the future brings. Certainly El Salvador’s recent decision to make Bitcoin its legal tender, and to become a leader in Bitcoin mining, is something to watch carefully. Just keep in mind that there is significant downside to experiencing foreign exchange rate volatility. This is why global financial institutions such as the World Bank and IMF do not support El Salvador’s decision; and as I keep saying, Bitcoin is a very high sentiment beta asset.

In the past I suggested that Bitcoin bubble would burst when Bitcoin investors conclude that its associated processing is too energy inefficient. Of course, many Bitcoin investors are passionate devotees, who are vulnerable to the psychological bias known as motivated reasoning. Motivated reasoning-based sentiment, featuring denial,3 can keep a bubble from bursting, or generate a series of bubbles, a pattern we can see from Bitcoin’s history.

I find the argument that Bitcoin is necessary to provide the right incentives for the development of clean alternatives for generating electricity to be interesting, but less than compelling. Are there no other incentives, such as evolving utility trends, or more efficient blockchain technologies? Bitcoin does have a first mover advantage relative to other cryptocurrencies. I just think we need to be concerned about getting locked into an technologically inferior solution because of switching costs.

There is an argument to made that decisions, such as how to use electric power, are made in markets with self-interested agents properly evaluating the tradeoffs. That said, think about why most of the world adopted the Windows operating system in the 1980s over the superior Mac operating system offered by Apple. Yes, we left it to markets to determine the outcome. People did make choices; and it took years for Windows to catch up with the Mac’s operating system.

My experience as a behavioral economist has taught me that the world is far from perfect, to expect to be surprised, and to expect people to make mistakes. We shall see what happens with Bitcoin going forward.

As things stand now, Bitcoin is well suited as an asset for fulfilling some people’s urge to engage in high stakes gambling. Indeed, many people have a strong need to engage in gambling. Last year, per capita expenditure on lottery tickets in Massachusetts was the highest in the U.S. at over $930.

High sentiment beta assets offer lottery-like payoffs. While Bitcoin certainly does a good job of that, it cannot simultaneously serve as an effective medium of exchange and reliable store of value, even setting aside the issue at the heart of the electricity debate.

 

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