Coal should be a warming concern: scientists

By Reuters


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Researchers and officials concerned about global warming have focused on oil usage, but scientists said liquefied coal could have a greater affect on global climate change.

Global warming scenarios are based on oil reserves, but those reserves will have less impact on global climate than the extent to which liquefied coal replaces oil and gas, scientists said at a meeting of the American Geophysical Union in San Francisco.

"Oil and gas by themselves don't have enough carbon to keep us in the dangerous zone for very long by themselves, but that's assuming we do something about coal," Pushker Kharecha, a researcher for the U.S. space agency NASA and Columbia University in New York.

Estimates vary, but coal is the most abundant fossil fuel, and countries like China and the United States are looking at liquefaction technology. Many industries in South Africa already use liquefied coal.

In 2007, Illinois Democratic Sen. Barack Obama and Kentucky Republican Jim Bunning introduced legislation that would set the stage for large-scale production of transportation fuels from coal. Bunning and president-elect Obama come from state with prodigious coal supplies.

Liquefied coal releases 40 percent more carbon dioxide than oil when burned, said Ken Caldeira, a scientist at the Carnegie Institution of Washington.

"Addressing the climate problem means addressing the coal problem," he said. "Whether there's a little more oil or a little less oil will change the details, but if we want to change the overall shape of the warming curve, it matters what we do with coal."

Caldeira said his climate models show that if all oil used in the world is replaced with liquefied coal, global temperatures will rise 2 degrees Celsius (3.6 degrees Fahrenheit) by 2042, three years sooner than if oil remains a staple.

If oil is replaced with solar, wind, or nuclear power, temperatures will rise 11 years later.

Many scientists believe high levels of atmospheric carbon dioxide lead to warming and effects like melting glaciers, thawing permafrost, ocean acidification and latitudinal shifts in climate.

Current atmospheric carbon dioxide levels are 385 parts per million and rising at a rate of about 2 parts per million (ppm) year as a result of burning coal, oil, and gas, the researchers said.

The generally accepted threshold for atmospheric carbon dioxide is 450 ppm. But scientists today said that number should be 350 ppm.

Climate change is a slow process, Kharecha said, and the effects may take decades and centuries to show up.

"There are currently more than enough fossil fuels and coal to push us well past safe atmospheric CO2 levels," he said.

None of the models presented at the session included carbon dioxide emissions from unconventional fossil fuels like tar sands, methane hydrates or oil shale.

Representatives from the liquefied coal industry could not be immediately reached for comment. In February, Robert Kelly of DKRW Advanced Fuels, which is building a liquefied coal production facility in Wyoming, told Reuters, "liquefied coal could be a huge fuel source for the next 50 years if we do it responsibly." He said coal emissions could be safely captured and stored underground.

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Hydro One, Avista to ask U.S. regulator to reconsider order against acquisition

Hydro One Avista Takeover faces Washington UTC scrutiny as regulators deny approval; companies plan a reconsideration petition, citing acquisition terms, governance concerns, merger risks, EPS dilution, and balance sheet impacts across regulated utility operations.

 

Key Points

A $6.7B bid by Hydro One to buy Avista, denied by Washington UTC on governance risk, under reconsideration petition.

✅ UTC denied over potential provincial interference.

✅ Petition for reconsideration due by Dec. 17.

✅ Deal seen diluting EPS, weakening balance sheet.

 

Hydro One Ltd. and Avista Corp. say they plan to formally request that the Washington Utilities and Transportation Commission reconsider its order last week denying approval of the $6.7-billion takeover, which previously received U.S. antitrust clearance from federal regulators, of the U.S.-based energy utility.

The two companies say they will file a petition no later than Dec. 17 but haven't indicated on what grounds they are making the request, even as investor concerns about Hydro One persist.

Under Washington State law, the UTC has 20 days to consider the petition, otherwise it is deemed to be denied.

If it reconsiders its decision, the UTC can modify the prior order or take any actions it deems appropriate, similar to provincial rulings such as the OEB decision on Hydro One's first combined T&D rates, including extending deliberations.

Washington State regulators said they would not allow Ontario's largest utility to buy Avista for fear the provincial government, which owns 47 per cent of Hydro One's shares and recently prompted a CEO and board exit at the utility, might meddle in Avista's operations.

Hydro One's shares have risen since the order because the deal, announced in July 2017, would have eroded earnings per share and weakened Hydro One's balance sheet, according to analysts, even as the company reported a one-time-boosted Q2 profit earlier this year.

 

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Wind and Solar Double Global Share of Electricity in Five Years

Wind And Solar Energy Growth is reshaping the global power mix, accelerating grid decarbonization as coal declines; boosted by pandemic demand drops, renewables now supply near 10% of electricity, advancing climate targets toward net-zero trajectories.

 

Key Points

It is the rise in wind and solar's share of electricity, driving decarbonization and displacing coal globally.

✅ Share doubled in five years across 83% of global electricity

✅ Coal's share fell; renewables neared 10% in H1 2020

✅ Growth still insufficient for 1.5 C; needs ~13% coal cuts yearly

 

Wind and solar energy doubled its share of the global power mix over the last five years, with renewable power records underscoring the trend, moving the world closer to a path that would limit the worst effects of global warming.

The sources of renewable energy made up nearly 10% of power in most parts of the world in the first half of this year, according to analysis from U.K. environmental group Ember, while globally over 30% of electricity is renewable in broader assessments.

That decarbonization of the power grid was boosted this year as shutdowns to contain the coronavirus reduced demand overall, leaving renewables to pick up the slack.

Ember analyzed generation in 48 countries that represent 83% of global electricity. The data showed wind and solar power increased 14% in the first half of 2020 compared with the same period last year while global demand fell 3% because of the impact of the coronavirus.

At the same time that wind turbines and solar panels have proliferated, coal’s share of the mix has fallen around the world. In some, mainly western European countries, where renewables surpassed fossil fuels, coal has been all but eliminated from electricity generation.


China relied on the dirtiest fossil fuel for 68% of its power five years ago, and solar PV growth in China has accelerated since then. That share dipped to 62% this year and renewables made up 10% of all electricity generated.

Still, the growth of renewables may not be going fast enough for the world to hit its climate goals, even as the U.S. is projected to have one-fourth of electricity from renewables soon, and coal is still being burnt for power in many parts of the world.

Coal use needs to fall by about 79% by 2030 from last year’s levels - a fall of 13% every year throughout the decade to come, and in the U.S. renewable electricity surpassed coal in 2022, Ember said.

New installations of wind farms are set to hold more or less steady in the next five years, according to data from BloombergNEF on deployment trends. That will make it difficult to realize a sustained pace of doubling renewable power every five years.

“If your expectations are that we need to be on target for 1.5 degrees, clearly we’re not going fast enough,” said Dave Jones, an analyst at Ember. “We’re not on a trajectory where we’re reducing coal emissions fast enough.”

 

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USA: 3 Ways Fossil Energy Ensures U.S. Energy Security

DOE Office of Fossil Energy safeguards energy security via the Strategic Petroleum Reserve, domestic critical minerals from coal byproducts, and carbon capture to curb CO2, strengthening resiliency amid shocks and supporting U.S. manufacturing and defense.

 

Key Points

A DOE program advancing energy security through SPR stewardship, critical minerals R&D, and carbon capture.

✅ Manages the Strategic Petroleum Reserve for emergency crude supply

✅ Develops domestic critical minerals from coal and mining byproducts

✅ Deploys carbon capture, utilization, and storage to cut CO2

 

The global economy has just experienced a period of unique transformation because of COVID-19. The fact that remains constant in this new economic landscape is that our society relies on energy; it’s an integral part of our day-to-day lives, even as U.S. energy use has evolved over time. According to the U.S. Energy Information Administration, approximately 80 percent of energy consumption in the United States comes from fossil fuels, so having access to a secure and reliable supply of those energy resources is more important than ever for national energy security considerations today. Below are three examples that highlight how our work at the U.S. Department of Energy’s Office of Fossil Energy (FE) helps ensure the Nation’s energy security and resiliency.

(1) Open crude oil reserves to respond to crises

FE has overall program responsibility for carrying out the mission of the Strategic Petroleum Reserve (SPR), the world’s largest supply of emergency crude oil. These federally-owned stocks are stored in massive underground salt caverns along the coastline of the Gulf of Mexico. The SPR is a powerful tool U.S. leaders use to respond to a wide range of crises, including energy crisis impacts on electricity and fuels, involving crude oil disruption or demand loss.  When the COVID-19 pandemic hit, the oil markets crashed and crude oil demand dropped drastically across the world. U.S. oil producers turned to the SPR to store their oil while broader energy dominance constraints were becoming evident in practice. This helped alleviate the pressure on producers to shut in oil production and proved to be a critical asset for American energy and national security.

(2) Use the Nation’s abundant coal reserves to produce valuable materials

Critical materials, including rare earth elements, are a group of chemical elements and materials with unique properties that support manufacturing of most modern technologies. They are essential components for critical defense and homeland security applications, green energy technologies, hybrid and electric vehicles, and high-value electronics. While these materials are not rare, they are hard to separate and expensive to extract. The United States relies heavily on imports from China. To reduce U.S. dependence on foreign sources, FE has a research and development program aimed at producing a domestic supply of critical materials from the Nation’s abundant coal resources and associated byproducts from legacy and current mining operations. Many of the technologies being developed can also be used to separate critical minerals from other mining materials and byproducts. Tapping into these resources has the potential to create new industries and revitalize coal communities and the workforce in coal-producing regions.

(3) Decrease carbon emissions for a cleaner energy future

FE is committed to balancing the Nation’s energy use with the need to protect the environment, and has a comprehensive portfolio of technological solutions that help keep carbon dioxide (CO2) emissions out of the atmosphere. For example, amid high natural gas prices that reinforce the case for clean electricity, the Department has been investing in carbon capture, utilization, and storage technologies for over a decade. These technologies capture CO2 emissions from various sources, including coal-fired power plants and manufacturing plants, before they enter the atmosphere. Several of these cutting-edge technologies have been deployed at major demonstration sites, supported by clean energy funding that aims to benefit millions. Three of these projects—Petra Nova, Archer Daniels Midland, and Air Products & Chemicals—have captured and injected over 10.8 million metric tons of CO2. The success of these projects is paving the way toward a cleaner and more sustainable American energy future.

 

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Britain Goes Full Week Without Coal Power

Britain Coal-Free Week signals a historic shift to clean energy, with zero coal power, increased natural gas and renewables, lower greenhouse gas emissions, and ambitious UK energy policy targeting a 2025 coal phase-out and decarbonization.

 

Key Points

A seven-day period with no coal power in the UK, signaling cleaner energy and progress on emission reductions.

✅ Seven days of zero coal generation in the UK

✅ Natural gas and renewables dominated the electricity mix

✅ Coal phase-out targeted by 2025; emissions cuts planned

 

For the first time in a century, Britain weaned itself off of coal consumption for an entire week, a coal-free power record for the country.

Reuters reported that Britain went seven days without relying on any power generated by coal-powered stations as the share of coal in the grid continued to hit record lows.

The accomplishment is symbolic of a shift to more clean energy sources, with wind surpassing coal in 2016 and the UK leading the G20 in wind share as of recent years; Britain was home to the first coal-powered plant back in the 1880s.

Today, Britain has some aggressive plans in place to completely eliminate its coal power generation permanently by 2025, with a plan to end coal power underway. In addition, Britain aims to cut its total greenhouse gas emissions by 80 percent from 1990 levels within the next 30 years.

Natural gas was the largest source of power for Britain in 2018, providing 39 percent of the nation's total electricity, as the Great Britain generation dashboard shows. Coal contributed only about 5 percent, though low-carbon generation stalled in 2019 according to reports. Burning natural gas also produces greenhouse gases, but it is much more efficient and greener than coal.

In the U.S., 63.5 percent of electricity generated in 2018 came from fossil fuels. About 35.1 percent was produced from natural gas and 27.4 percent came from coal. In addition, 19.3 percent of electricity came from nuclear power and 17.1 percent came from renewable energy sources, according to the U.S. Energy Information Administration.

 

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Blackout-Prone California Is Exporting Its Energy Policies To Western States, Electricity Will Become More Costly And Unreliable

California Blackouts expose grid reliability risks as PG&E deenergizes lines during high winds. Mandated solar and wind displace dispatchable natural gas, straining ISO load balancing, transmission maintenance, and battery storage planning amid escalating wildfire liability.

 

Key Points

California grid shutoffs stem from wildfire risk, renewables, and deferred transmission maintenance under mandates.

✅ PG&E deenergizes lines to reduce wildfire ignition during high winds.

✅ Mandated solar and wind displace dispatchable gas, raising balancing costs.

✅ Storage, reliability pricing, and grid upgrades are needed to stabilize supply.

 

California is again facing widespread blackouts this season. Politicians are scrambling to assign blame to Pacific Gas & Electric (PG&E) a heavily regulated utility that can only do what the politically appointed regulators say it can do. In recent years this has meant building a bunch of solar and wind projects, while decommissioning reliable sources of power and scrimping on power line maintenance and upgrades.

The blackouts are connected with the legal liability from old and improperly maintained power lines being blamed for sparking fires—in hopes that deenergizing the grid during high winds reduces the likelihood of fires. 

How did the land of Silicon Valley and Hollywood come to have developing world electricity?

California’s Democratic majority, from Gov. Gavin Newsom to the solidly progressive legislature, to the regulators they appoint, have demanded huge increases in renewable energy. Renewable electricity targets have been pushed up, and policymakers are weighing a revamp of electricity rates to clean the grid, with the state expected to reach a goal of 33% of its power from renewable sources, mostly solar and wind, by next year, and 60% of its electricity from renewables by 2030.

In 2018, 31% of the electricity Californians purchased at the retail level came from approved renewables. But when rooftop solar is added to the mix, about 34% of California’s electricity came from renewables in 2018. Solar photovoltaic (PV) systems installed “behind-the-meter” (BTM) displace utility-supplied generation, but still affect the grid at large, as electricity must be generated at the moment it is consumed. PV installations in California grew 20% from 2017 to 2018, benefiting from the state’s Self-Generation Incentive Program that offers hefty rebates through 2025, as well as a 30% federal tax credit.

Increasingly large amounts of periodic, renewable power comes at a price—the more there is, the more difficult it is to keep the power grid stable and energized. Since electricity must be consumed the instant it is generated, and because wind and solar produce what they will whenever they do, the rest of the grid’s power producers—mostly natural gas plants—have to make up any differences between supply and immediate demand. This load balancing is vital, because without it, the grid will crash and widespread blackouts will ensue.

California often produces a surplus of mandated solar and wind power, generated for 5 to 8 cents per kilowatt hour. This power displaces dispatchable power from natural gas, coal and nuclear plants, resulting in reliable power plants spending less time online and driving up electricity prices as the plants operate for fewer hours of the day. Subsidized and mandated solar power, along with a law passed in California in 2006 (SB 1638) that bans the renewal of coal-fired power contracts, has placed enormous economic pressure on the Western region’s coal power plants—among them, the nation’s largest, Navajo Generating Station. As these plants go off line, the Western power grid will become increasingly unstable. Eventually, the states that share their electric power in the Western Interconnect may have to act to either subsidize dispatchable power or place a value on reliability—something that was taken for granted in the growth of the America’s electrical system and its regulatory scheme.

California law regarding electricity explicitly states that “a violation of the Public Utilities Act is a crime” and that it is “…the intent of the Legislature to provide for the evolution of the ISO (California’s Independent System Operator—the entity that manages California’s grid) into a regional organization to promote the development of regional electricity transmission markets in the western states.” In other words, California expects to dictate how the Western grid operates.

One last note as to what drives much of California’s energy policy: politics. California State Senator Kevin de León (the author served with him in the State Assembly) drafted SB 350, the Clean Energy and Pollution Reduction Act. It became law in 2015. Sen. de León followed up with SB 100 in 2018, signed into law weeks before the 2018 election. SB 100 increased California’s renewable portfolio standard to 60% by 2030 and further requires all the state’s electricity to come from carbon-free sources by 2045, a capstone of the state’s climate policies that factor into the blackout debate.  

Sen. de León used his environmental credentials to burnish his run for the U.S. Senate against Sen. Dianne Feinstein, eventually capturing the endorsements of the California Democratic Party and billionaire environmentalist Tom Steyer, now running for president. Feinstein and de León advanced to the general in California’s jungle primary, where Feinstein won reelection 54.2% to 45.8%.

De León may have lost his race for the U.S. Senate, but his legacy will live on in increasingly unaffordable electricity and blackouts, not only in California, but in the rest of the Western United States—unless federal or state regulators begin to place a value on reliability. This could be done by requiring utility scale renewable power providers to guarantee dispatchable power, as policymakers try to avert a looming shortage of firm capacity, either through purchase agreements with thermal power plants or through the installation of giant and costly battery farms or other energy storage means.

 

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CT leads New England charge to overhaul electricity market structure

New England Grid Reform Initiative aligns governors with ISO New England to reshape market design, boost grid reliability, accelerate renewable energy and offshore wind, explore carbon pricing and forward clean energy markets, and bolster accountability.

 

Key Points

Five states aim to reform ISO New England markets, prioritize renewables and reliability, and test carbon pricing.

✅ Governors seek market design aligned with clean energy mandates

✅ ISO-NE accountability and stakeholder engagement prioritized

✅ Explore carbon pricing and forward clean energy market options

 

Weeks after initiating a broad overhaul of utility regulation within its borders, Connecticut has recruited four New England states, as Maine debates a 145-mile transmission line project to rework the regional grid that is overseen by ISO New England, the independent system operator charged with ensuring a reliable supply of electricity from power plants.

In a written statement Thursday morning, Gov. Ned Lamont said the current structure “has actively hindered” states’ efforts to phase out polluting power plants in favor of renewable sources like wind turbines and solar panels, while increasing costs “to fix market design failures” in his words. Lamont’s energy policy chief Katie Dykes has emerged as a vocal critic of ISO New England’s structure and priorities, in her role as commissioner of the Connecticut Department of Energy and Environmental Protection.

“When Connecticut opted to deregulate our electricity market, we wanted the benefits of competition — to achieve lower-cost energy, compatible with meeting our clean-energy goals,” Dykes said in a telephone interview Thursday afternoon. “We have a partner [in] ISO New England, to manage this grid and design a market that is not thwarting our clean-energy goals, but achieving them; and not ignoring consumers’ concerns. ... That’s really what we are looking to do — reclaim the benefits of competition and regional cooperation.”

Lamont and his counterparts in Massachusetts, Rhode Island, Vermont and Maine plan to release a “vision document” in their words on Friday through the New England States Committee on Electricity, after New Hampshire rejected a Quebec-Massachusetts transmission proposal that sought to import Canadian hydropower.

The initial documents made no mention of New Hampshire, which likewise obtains electricity through the wholesale markets managed by ISO New England and has seen clashes over the Northern Pass hydropower project in recent years; and whose Seabrook Station is one two nuclear power plants in New England alongside Dominion Energy’s Millstone Power Station in Waterford. Gov. Chris Sununu’s office did not respond immediately to a query on why New Hampshire is not participating.

Connecticut and the four other states outlined a few broad goals that they will hone over the coming months. Those include creating a better market structure and planning process supporting the conversion to renewables; improving grid reliability, with measures such as an emergency fuel stock program considered; and increasing the accountability of ISO New England to the states and by extension their ratepayer households and businesses.

ISO New England spokesperson Matt Kakley indicated the Holyoke, Mass.-based nonprofit will “engage with the states and our stakeholders” on the governors’ proposal, in an email response to a query. He did not elaborate on any immediate opportunities or challenges inherent in the governors’ proposal.

“Maintaining reliable, competitively-priced electricity through the clean energy transition will require broad collaboration,” Kakley stated. “The common vision of the New England governors will play an important role in the discussions currently underway on the future of the grid.”

 

Renewable revolution
ISO New England launched operations in 1999, running auctions through which power plant operators bid to supply electricity, including against long-term projections for future needs that can only be met through the construction or installation of new generation capacity.

ISO New England falls under the jurisdiction of the Federal Energy Regulatory Commission rather than the states whose electricity supplies it is tasked with ensuring. That has led to pointed criticism from Dykes and Connecticut legislators that ISO New England is out of touch with the state’s push to switch to renewable sources of electricity.

Entering October, ISO New England published an updated outlook that revealed 60 percent of proposed power generators in the region’s future “queue” are wind farms, primarily offshore installations like the proposed Park City Wind project of Avangrid and Revolution Wind from Eversource. But Dykes recently criticized as unnecessary an NTE Energy plant approved already by ISO New England for eastern Connecticut, which will be fueled by natural gas if all other regulatory approvals are granted.

The six New England states participate in the Regional Greenhouse Gas Initiative that caps carbon emissions by individual power plants, while allowing them to purchase unused allowances from each other with that revenue funneled to the states to support renewable energy and conservation programs. FERC is now considering the concept of carbon pricing, which would levy a tax on power plants based on their emissions, and it also faces pressure to act on aggregated DERs from lawmakers.

ISO New England is investigating the concepts of net carbon pricing and a “forward clean energy market” that would borrow elements of the existing forward capacity market, but designed to meet individual state objectives for the percentage of renewable power they want generated while ensuring adequate electricity is in place when weather does not cooperate.

The Connecticut Public Utilities Regulatory Authority is collecting on its own initiative industry input on modernization proposals, as New York regulators open a formal review of retail energy markets for comparison, that would add up to hundreds of millions of dollars, including utility-scale batteries to store power generated by offshore wind farms and solar arrays; and “smart” meters in homes and businesses to help electricity customers better manage their power use.

The New England Power Pool serves as a central forum for plant operators, commercial users and others like the Connecticut Office of Consumer Counsel, amid Massachusetts solar demand charge debates that affect distributed generation policy, with NEPOOL’s chair stating Thursday morning the group was still reviewing the governors’ announcement.

“NEPOOL has been engaged this year in meetings ... exploring the transition to a future grid in New England and potential pathways forward to support that transition,” stated Nancy Chafetz, chair of NEPOOL, in an email.

Connecticut’s issues with ISO New England boiled over this summer on the heels of a power-purchase agreement between Millstone owner Dominion and transmission grid operators Eversource and United Illuminating, which contributed to a sharp increase in customer bills.

A few weeks ago, Lamont signed into law a “Take Back the Grid” act that allows the Connecticut Public Utilities Regulatory Authority to factor in Eversource’s and Avangrid subsidiary United Illuminating’s past performance in maintaining electric reliability, in addition to any future needs for revenue based on needed upgrades. The law included an element for Connecticut to initiate a study of ISO New England’s role.

Eversource and Avangrid have voiced support for the switch to “performance-based” regulation in Connecticut. Eversource spokesperson Mitch Gross on Thursday cited the company’s view that any changes to the operation of New England’s wholesale power markets should occur within the existing ISO New England structure.

“We also recommend any examination of potential alternatives includes a thorough evaluation that ensures unfair costs would not be imposed on customers,” Gross stated in an email.

In a statement forwarded by Avangrid spokesperson Ed Crowder, the United Illuminating parent indicated it intends to have “a voice in this process” with the goal of continued grid reliability amid increased adoption of clean energy sources.

 

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