Charles Komanoff – Page 10

Carbon Tax Center

Pricing carbon efficiently and equitably

This is the fundamental reason conservatives will never join in a good-faith fight against climate change. By its very structure, solving climate requires non-zero-sum cooperation, shared sacrifice, & long-term thinking. Cons oppose those things at a brainstem level.”

By

Journalist David Roberts, responding to Trump Secretary of State Mike Pompeo tweeting that “If you stand for Climate Change First, you stand for America Last, ” May 30.

CTC’s Carbon Tax Model Now Incorporates EV’s and Other Electrified Transport

By

We’ve just posted an update — the first in four years — to our carbon-tax spreadsheet model, CTC’s easy-to-use but powerful tool for forecasting future emissions and revenues from possible U.S. carbon taxes.

The model, which runs in Excel, accepts any carbon tax trajectory and spits out estimated sector-by-sector and economy-wide emission reductions, year by year.

The big new feature is explicit modeling of transportation’s conversion to electric propulsion. The model establishes baseline projections of electric power’s 2050 shares of car travel (60 percent), freight hauling (30 percent), and airplane seat miles (10 percent, probably by hydrogen, which, like battery power, will be produced by electricity); it then elevates these percentages in the case of robust carbon-taxing.

Our updated model also includes, as it must, the added electricity to power electric transport. This quantity is substantial, accounting for around 20 percent of all electricity usage by the 2045 end of the forecast period. Yet the resulting emissions never reach 100 million metric tons of CO2, on account of the rapid decarbonization of electricity production predicted in the model. (For comparison, note that total U.S. carbon dioxide emissions this year from burning fossil fuels are likely to be between 5,000 and 5,500 million metric tons.)

Without a tax on carbon emissions, however, electrified transport will add 200 million metric tons to annual U.S. emissions two decades from now — even though fewer cars, trucks and planes will be electric-powered, due to the absence of a carbon price signal. The higher level is because of the slower pace of decarbonization of electricity generation without a carbon tax.

A Carbon Tax Could Put Biden’s Ambitious 2030 Target Within Reach

At last month’s Earth Day climate summit, President Biden committed the United States to “a 50-52 percent reduction from 2005 levels in economy-wide net greenhouse gas pollution in 2030.” Since his target encompasses greenhouse gas pollutants like methane and chlorofluorocarbons and also appears to take credit for carbon sequestration in soils and forests, it’s possible that it assumes only a 40 percent reduction in fossil fuels’ CO2 along with very aggressive reductions in other areas.

A robust carbon tax could put a 40 percent CO2 reduction target nearly in reach. Our modeling suggests that with a carbon tax starting next year at $15 per ton of CO2 and rising by $10 a ton each year, U.S. 2030 carbon emissions from burning fossil fuels would be 36 percent less than in 2005. Without a carbon tax, the 2030 vs. 2005 reduction is limited to 14 percent — the same as in 2017. And while Biden’s laudable plans to ramp up energy efficiency and renewable electricity will cut emissions somewhat, raising the reduction figure to 20 percent is probably the limit to what the U.S. can accomplish by 2030 without a rapidly rising carbon tax.

How We Model Electrified Transport

Vehicle electrification is beginning to take off, propelled by improving battery performance, zero-emission-vehicle mandates in some states, and Biden administration plans to jump-start battery charging facilities across the country.

S-curves for electric vehicle uptake.

Like other innovative mass-market technologies — smartphones, VCR’s and microwave ovens come readily to mind — dissemination of EV’s is likely to follow an s-curve rather than a linear (straight) path. We use such a curve to represent the rate of uptake, with the halfway point assumed to be 2035.

As noted, we posit that even without a significant carbon price, electric or hydrogen propulsion will account for 60 percent of U.S. driving, 30 percent of goods movement and 10 percent of aviation by 2050. But a robust carbon tax will speed the transition, not just by widening electric vehicles’ per-mile price advantage over gasoline, diesel and jet fuels but by creating tipping points, e.g., accelerating the replacement of gas stations with charging stations. We assume that a robust price — $100 or higher (in 2020 dollars) by 2031 — will lift our 60/30/10 percentages by half, to 90/45/15.

The reductions in U.S. petroleum requirements predicted for that scenario by our model are striking. By the mid-2030s, when the penetration of electric transport is at its halfway point and kicking in fast, total oil consumption is projected to be nearly four million barrels a day (25 percent) less than in a business-as-usual, no-carbon-tax future, and nearly eight million barrels a day less than the actual 2005 rate.

Other Features of CTC’s Carbon Tax Model

Here are other defining features of our carbon-tax model:

1. It’s baselined to 2019: That’s the most recent year with available data. It’s also a more solid baseline year than 2020, when the pandemic drove down key fossil fuel use sectors, especially driving and flying.

2. Oil refining is allocated to usage sectors: “Upstream” carbon emissions from refining petroleum products are assigned to the respective end-use sectors such as driving, goods movement and aviation. The model doesn’t ignore analogous add-ons for electric transportation; we add 20 percent to the current watt-hours per mile figures for the respective travel modes to allow for electric-intensive battery manufacture.

Our familiar pie chart, updated to the last pre-pandemic year, 2019.

3. We smooth the uptake of the carbon tax: Big jumps in carbon tax levels won’t be fully reflected in fossil fuel use right away. Households and businesses need time to adapt to costlier fossil fuels. The model captures these lags through a ceiling in the tax increment that can be “absorbed” in any one year and carries over any excess. This feature is helpful for trajectories like the Whitehouse-Schatz bill, which kicks off with a bang at $45 per metric ton of CO2. Under our default setting, in which the economy in any year is assumed able to process only tax increments up to $15 per ton of CO2, the reductions from that initial $45/ton charge are spread over three years rather than, unrealistically, assigned to the first year.

4. Demand vs. supply impacts: The Summary page has a section comparing projected CO2 reductions from changes in fuels’ carbon intensities (“supply side”) versus reductions from reduced energy usage (“demand side,” e.g., lower electricity purchases, less driving or flying). Under our default carbon tax — starting at $15 per ton of carbon dioxide and rising annually at $10/ton — an estimated 64% of projected CO2 reductions are on the supply side (i.e., due to decarbonization); a substantial minority, 36%, come about through reduced demand, illustrating that subsidies-only policies miss out on huge CO2 reductions. Indeed, clean-energy subsidies undercut decarbonization by stimulating energy usage through lowered energy prices, a phenomenon we noted in our 2014 comments to the Senate Finance Committee.

5. Transparency: All model assumptions, formulas and algorithms are in plain sight. This includes our price-elasticity assumptions that translate higher fossil fuel prices into lower demand trajectories, as well as the income-elasticities that predict more driving, flying, electricity usage and so forth as incomes rise. To be sure, some hunting may be required; the model has nearly 25,000 equations, after all. But the stepwise procedures we use to calculate year-to-year changes in each sector’s activity level, fuel use and emissions are all annotated, a mighty assist to anyone wishing to get deep into the model’s workings.

6. Easy to use: For example, we just read today’s WaPo op-ed, Biden should embrace a carbon tax, by veteran Washington and Wall Street insiders Henry Paulson and Erskine Bowles. Once we got past the political tone-deafness of urging a carbon tax now (“Biden’s task is to pass bold, progressive, popular legislation to help Democrats expand their Congressional majorities in 2022 and 2024 and give him a thumping second-term mandate to boot,” we wrote last month; “then, and only then, can he risk a carbon tax”), we saw Paulson and Bowles’ claim that a carbon tax starting at $40 per ton and increasing by 5 percent per year above the rate of inflation “would reduce U.S. emissions to 50 percent below 2005 levels by 2035.” It took only seconds to plug those figures into our model and see that in year 15, which would be 2036 or later, the tax would reduce emissions by only 39 percent. While that’s a big reduction, it’s still a ways below the council’s claimed 50 percent.

The spreadsheet is user-friendly, powerful and, if you’re so inclined, captivating. We hope you’ll download it — here’s the link again — and run it in Excel. See for yourself the relative efficacy of a carbon tax trajectory that increases by a fixed amount each year, as does the Energy Innovation and Carbon Dividend Act supported by Citizens Climate Lobby, vs. one like the Climate Leadership Council’s (touted by Paulson and Bowles) that starts high but rises only by moderate, percentage-driven amounts.

As you work (play?) with the model, jot down your thoughts so you can tell us what works and what needs improving. Especially the latter, as we just wrapped the update and there are bound to be glitches. We’d love to hear from you.

Playing the Long Game for Carbon Fee-and-Dividend

By

Barely twenty days after signing his $1.9 trillion American Rescue Plan to provide pandemic relief and wrestle Covid-19 to a halt, President Biden this week unveiled a follow-on eight-year $2 trillion plan that he called a “once-in-a-generation investment in America” to repair failing roads and bridges, revitalize rail travel and freight, get rid of water-supplying lead pipes, and generally overhaul the country’s infrastructure.

While a New York Times headline framed Biden’s American Jobs Plan as “stressing jobs, roads and growth,” the paper’s own explainer was sketching a different — and lower-carbon — story. Of $621 billion in transportation spending, less than 20 percent, $115 billion, goes to “roads and bridges,” and much and perhaps most of that appears destined for “fix-it-first” repairs rather than traffic-inducing highway expansions. (See graphic.) Public transit and railways get a combined $165 billion, and word is that some of the $20 billion penciled in for “underserved communities” is to pay to tear down segregation-enforcing urban expressways.

Roads and bridges get less than 20% of Biden’s transportation investments, and much of that is for repairs, not expansions.

The devil is in the details, of course, as Streetsblog USA noted today, with links to detailed treatments in Vox, Politico and Transportation for America. Notably missing from the new Biden package, though, is a carbon tax, or a carbon price in any form. The Biden infra plan is all carrots and no sticks, meaning it may not make much headway in reducing carbon emissions, at least in the short term.

We’re at peace with that, at the Carbon Tax Center. Razor-thin House and Senate margins simply don’t allow for hot-button measures like carbon pricing that might jeopardize other elements of the package in addition to failing on their own. Biden’s task, as he knows full well, is to pass bold, progressive, popular legislation to help Democrats expand their Congressional majorities in 2022 and 2024 and give him a thumping second-term mandate to boot. Then, and only then, can he risk a carbon tax.

Syracuse University public administration professor David Popp spoke to this dynamic in another Times story earlier this week, Biden’s Lesson From Past Green Stimulus Failures: Go Even Bigger. “Spending money is politically easier than passing policies to cut emissions,” he noted. “Unless [spending is paired] with a policy that forces people to reduce emissions, a big spending bill doesn’t have a big impact. [But if that] sets up the energy economy in a way that it’s eventually cheaper to reduce emissions, it could create more political support for doing that down the road.”

When the time is ripe, what kind of carbon price?

The number of $1,400 stimulus payments issued by the Treasury Department has surpassed 125 million, according to a CNBC update on the American Rescue Plan. That’s in addition to 100 million or more stimulus relief checks last April that provided up to $1,200 for Americans earning less than $100,000 a year.

The vast majority of these payments have been made as direct deposits, a procedure so immediate and trusted that one elected official recently called such payments “political magic.” That accolade fits our own preference for the carbon fee-and-dividend method of taxing carbon, which returns all (or nearly all) of the carbon revenues to American households as direct payments made quarterly or even monthly.

As we’ve written previously (explainer here, policy/strategy here), carbon-fee-and-dividend has these powerful virtues: simplicity (explainable in a sentence), concreteness (money in your bank account), proportionality (the amounts deposited rise whenever the carbon tax level is raised), and progressivity (most low- and even middle-income households come out ahead).

Depositing carbon revenues in people’s bank accounts makes fee-and-dividend quintessentially revenue-neutral. Where, then, will the money come from to pay for American Jobs Plan? President Biden’s answer is to boost corporate tax rates while also raising corporate tax “capture rates” by finally plugging special provisions and accounting tricks that last year enabled over 50 major U.S. corporations to go completely tax-free despite reaping billions in profits, according to a new report from the Institute on Taxation and Economic Policy.

A two-step strategy of (1) building green — or, at least, greener — infrastructure and paying for it by taxing corporate wealth, and (2) instilling carbon-cutting incentives in every cranny and capillary of the economy via a revenue-neutral carbon price, would follow the contours of the “New Synthesis: Carbon Taxing, Wealth Taxing & A Green New Deal” we sketched in Dec. 2019, shortly before the pandemic struck. The Biden plan does #1, and, if successful, could lay the foundation for tackling #2 after the midterms or the president’s re-election.

That approach is not what the Washington Post urged in an editorial last week, Pay for Biden’s $3 trillion infrastructure plan with a carbon tax. In our view, adding a carbon tax would sink the infrastructure plan. Better to get the plan through Congress (infra is perennially popular), pay for it with corporate taxes (similarly popular), and use the political windfall to marshal support for a carbon tax later.

Time to reform the Climate Solutions Caucus

Clearly, we think carbon fee-and-dividend has legs, and we salute Citizen Climate Lobby for patiently and faithfully building grassroots support for it over the past dozen years. Nevertheless, even before this week’s unmasking of Florida Congressmember and Trumpista Matt Gaetz as a possible serial sex-offender (first salvo from Tuesday here, today’s latest, here) we were getting restive about the inclusion of Gaetz and other avowed-denialist House Republicans in the ranks of the Climate Solutions Caucus.

See any pro-climate reps in this list of Republicans? Neither do we. The list of caucus Democrats is longer and stronger.

CCL has touted the caucus since its inception as part of its philosophy to advance fee-and-dividend carbon pricing as bipartisan. Alas, that project has become increasingly dubious as Republicanism has come to require unflinching fealty to fossil fuels. For years now, few of the two dozen House Republicans who signed up for the caucus have so much as lifted a finger to warrant being considered climate solutions anything. (Several who did, such as Francis Rooney and Carlos Curbelo, both from Florida, either retired or were defeated for re-election.)

I have in mind two members from New York State: Lee Zeldin, from my native Long Island, and Elise Stefanik, who represents sparsely populated northern NY where my family has a cabin. Both are unreservedly Trumpian (voting to overturn the 2020 election, for example). Gaetz, even before this week’s unseemly revelations, was arguably the most Trumpian member of Congress, ideologically and culturally. Since entering Congress, none of the three have evinced interest in or support for carbon pricing.

The Carbon Tax Center calls on Citizens Climate Lobby to develop meaningful, transparent criteria for maintaining membership in the Climate Solutions Caucus. My concern here is not to keep undeserving caucus members from greenwashing themselves. They likely couldn’t care less; indeed, for them, anti-climate is probably a badge of honor to wear in their next primary campaign.

Rather, we at CTC believe that removing climate deniers from the Climate Solutions Caucus could help rehabilitate carbon taxing in the public conversation. As it now stands, letting anti-climate ideologues remain in a “climate solutions” body makes it easier to cast carbon-tax proponents as easy marks — gullible Charlie Browns waiting in vain for the G.O.P. to share the carbon-tax football.

In our opinion, any leverage that Citizens Climate Lobby might gain from continuing to seek bipartisanship is more than offset by the perception — which has only risen since the Capitol insurrection — that pursuit of climate partnership with Republicans is a fool’s errand.

Carbon pricing (in the form of higher fuel taxes) may have been the lightning rod [for the Gilets Jaunes uprising in France], but actually the underlying cause was the perceived unfairness of the overall tax reform package, which cut taxes for wealthier households at the same time as hiking up fuel prices. Thus, it is a little clumsy to use the Gilets Jaunes as evidence to suggest higher carbon prices are not possible – they are simply not possible in isolation.”

By

Josh Burke & Esin Serin, UK carbon pricing needs to be part of comprehensive tax reform, Grantham Institute News, Feb. 22.

Changes in the Wind in Wyoming’s Carbon County

By

Four states — Pennsylvania, Montana, Utah and Wyoming — have counties named Carbon, after their wealth-generating coal deposits. The last, in the south-central part of the nation’s least populous state but, by some measures, its windiest, is hosting construction of a giant wind farm called the Chokecherry and Sierra Madre Wind Energy Project — 700 wind turbines that within a few years will generate a combined 3,000 MW.

An image from the carbonwy.com home page. The wind turbines are best glimpsed by looking right to left.

The transition to wind of any county named for coal is bound to conjure both irony and poetry, a dynamic captured in a resonant photo-essay in today’s New York Times, Carbon County, Wyoming, Knows Which Way the Wind Is Blowing. (After we posted, the Times changed its headline to the anodyne “Wyoming Coal Country Pivots, Reluctantly, to Wind Farms.”)

For the Carbon Tax Center, the change is extra-delicious. More than 40 years ago, I toured a power plant and strip mine at the northern end of the region’s massive Powder River Basin, in Colstrip, Montana, before a backpacking trip deep into Wyoming’s Big Horn and Wind River mountain ranges. I wondered if the Northern Rockies would ever evolve from coal mining to wind harvesting, a question I put into a post here, A Struggling Wyoming Is Slow to Embrace Its Renewable Future, in 2016.

Now, at last, that embrace is gathering force. Last year, wind turbines in Wyoming generated 5,143,000 megawatt-hours of electricity, 20 percent more than in 2019, though less than Texas, Iowa and 14 other states. The Chokecherry and Sierra Madre project will add around 9,000,000 MWh, assuming the turbines spin the equivalent of full speed for one-third of the time. Other projects are expected to bring the state’s total to 27,000,000 MWh by 2029.

What’s driving the transition? Not a carbon tax, since neither the U.S. nor any coal-consuming state has one. And not federal policies. The long-standing production tax credit for renewables, though slightly shrunk last year, still grants wind developers $18 for each megawatt-hour their projects produce.

Rather, energy-efficiency gains that have flattened U.S. demand for electricity, along with an inability to cut operating costs, have handed coal-fired plants the short straw in today’s power-generation zero-sum game. When one source’s share goes up, another’s goes down. Meanwhile, wind turbines grow ever-larger, more powerful and more reliable, bringing down their costs. And developers have gotten savvier about obtaining permits and negotiating deals.

None of this seems lost on Terry Weickum, the 68-year-old mayor of Rawlins, the seat of Carbon County, whom the Times portrays as the embodiment of every wind energy paradox. The permitting and taxing guidelines that he wrote as head of the county’s wind task force helped unlock the state’s wind siting gridlock; but that displeased other, pro-coal county commissioners, costing him his county post. Like many of his neighbors, Weickum is said to disparage concerns over climate change and to “disapprove of the way the glossy turbines interrupt the emptiness of the sagebrush-spotted landscape.” Nonetheless he went to bat for wind power as a way to save Rawlins from the ghost-town fate that traditionally has befallen towns in the hardscrabble west that could neither keep up nor reinvent themselves.

“If it wasn’t for wind farms, [Carbon County and Rawlins] would be in terrible shape,” Weickum told the Times. Wind is also now a godsend for Weickum’s printing and sign-making business. Last year it took in nothing from coal-mining companies but garnered $150,000 of business from wind companies.

In another sign of wind power’s evolution in Wyoming, debate could be starting to shift from “Wind yes or no?” to “How much should we tax wind power?,” judging from a story from Wyoming Public Media, Proposal To Raise Wind Tax Dies Again In Committee (hat tip to the Times for the link).

Last December, the legislature’s Joint Revenue Committee voted down a proposed doubling in the state’s wind tax royalty, to $2 per MWh from the current $1. The debate was earnest and thoughtful, as reported by WPM. A businessman from Lander, in the western part of the state, who opposes wind power and supported the increase, testified “There’s a fear that by imposing realistic taxes on renewable energy, producers will go elsewhere. But that argument supposes that citizens in other states will not value their contributions to production as lovingly as we do in Wyoming.”

On the anti-taxing side, a number of local government officials, ranchers and residents argued in tandem with the wind-energy companies that even at just $1/MWh, the royalty payments have been “a bright revenue spot for a state used to a boom-bust cycle,” as WPM put it, but that raising it risked branding the state as unreliable and driving wind developers elsewhere.

Image from Power Company of Wyoming LLC, developer of the Chokecherry and Sierra Madre project in Carbon County, WY.

CTC aligns with Wyoming’s higher-tax folks. Yet it’s safe to say that no one at the hearing brought up the possibility that a national carbon tax could create room to raise Wyoming’s royalty rate without hamstringing the state’s fledgling wind sector. The numbers are intriguing. A middling carbon tax of $50 per ton of CO2 — more than the token $20 rate that occasionally escapes Exxon’s lips, but less than the triple-digit charge that CTC and others eye as the needed level to reach by the end of this decade — would add a hefty $54 to the cost of each megawatt-hour generated by burning coal. The effective tax on natural gas-fired generation would be less, just $22.50, though with an ancillary tax on methane emissions that would probably rise to around $30 per MWh. Either figure dwarfs the $1 a MWh increase that died in the legislature.

Such carbon-tax-driven increases in the merchant price of gas- and coal-fired electricity, which still accounted for nearly 60 percent of U.S. electricity last year, would give cover for Wyoming (and other states) to raise wind-power royalty rates by much more than a dollar per megawatt-hour. And while asking Wyoming’s hard-right Senators John Barrasso and Cynthia Lummis and its lone Rep. Liz Cheney to join the carbon-tax camp is surely a fool’s errand — coal mining still provides more employment than wind energy in Wyoming — the transformative power of carbon taxing is something Wyomingites may want to bear in mind as they continue their state’s transition from carbon to wind.

In the meantime, the rest of us would do well to ponder what Wyoming state senator Cale Case, an opponent of rapid wind development in his state (and a proponent of raising the royalty fee), told the Times: “This is one of the largest undeveloped places in the United States. There’s a pure existence value on its own to see what the early people saw, what the pioneers saw, just to be able to breathe.”

Amen. And while it’s true that any sentiments in the last century against turning Wyoming into the nation’s coal colony went unheeded, that doesn’t lessen the fact that even machines that magically turn air into power can’t be invisible.

Note: Calculations translating $50/ton carbon tax to $ per MWh assume 2.16 lb of CO2 per coal-fired kWh (heat rate = 10,080 Btu/kWh) and 0.90 lb for natural gas (assuming combined-cycle generation with heat rate = 7,658). 

A Carbon Tax Can Put Zero-Carbon New Jersey In Closer Reach

By

Note: This post has been updated from its original March 1 posting: new closing section, some “line edits,” new headline.

That was quite a feel-good story in Yale Environment 360 last week. The headline, On U.S. East Coast, Has Offshore Wind’s Moment Finally Arrived?, didn’t really rate a question mark, considering how the subhead brimmed with optimism:

After years of false starts, offshore wind is poised to take off along the East Coast. Commitments by states to purchase renewable power, support from the Biden administration, and billions in new investment are all contributing to the emergence of this fledgling industry.

About time. Early this century, I was an ardent proselytizer for wind power, “the only non-polluting means of generating energy that is commercially available on a large scale,” as I described it in an Appeal to the environmental community to support the Cape Wind project in Nantucket Sound in 2002.

Block Island Wind Farm south of Rhode Island, the first commercial offshore wind farm in the U.S. The 6-megawatt turbines stand 600 feet tall. Photo by Don Emmert / AFP via Getty Images, courtesy Yale Environment 360.

Sadly, in one of the worst NIMBY flameouts ever, the 470-megawatt Cape Wind project was set upon by well-connected Cape Codders like the Kennedy family and Walter Cronkite, keeping it from fruition. and creating a playbook for wind foes everywhere. Even a proposal to repurpose a mine-damaged Adirondacks mountaintop with a mere half-dozen turbines proved no match for preservationists who prioritized their views over sustainability.

But wind power’s political travails did help kindle my interest in carbon taxing. “If carbon fuels were taxed for their damage to the climate,” I mused in a 2006 article in Orion magazine, “wind power’s profit margins would widen, and surrounding communities could extract bigger tax revenues from wind farms,” helping ease the path to public acceptance and regulatory approvals. A few months after writing that, I co-founded CTC.

Wind power today

Today, though fewer than ten wind turbines operate at just two offshore U.S. sites, tens of thousands of onshore turbines together are generating 8 percent of U.S. electricity (based on preliminary 2020 data). Percentage-wise, Iowa led all states with 42 percent of its electricity production coming from wind in 2019. Texas (yes, Texas) led in absolute megawatt-hours from wind last year with a whopping 93 million megawatt-hours, nearly 28 percent of the U.S. total.

Now, the Yale story reports, “New York, New Jersey, Virginia, Massachusetts, Connecticut, Rhode Island, and Maryland have together committed, through legislation or executive action, to buying about 30,000 megawatts (MW) of offshore electricity by 2035.”

A quarter of those megawatts, 7,500, would be located off New Jersey’s Atlantic coast, a goal that NJ Gov. Phil Murphy affirmed in a statement last September announcing the state’s Offshore Wind Strategic Plan.

What physical scale do those 7,500 megawatts constitute? Let’s use as our metric the new crop of super-giant turbines. According to the Yale story, Vestas, Orsted and General Electric are today selling wind machines in the 12-14 megawatt range — an impressive notion, considering that not long ago the 3.6-megawatt Cape Wind turbines were said to be pushing the envelope.

These machines, which the manufacturers are selling today, are truly massive, with towers extending 850 feet above the ocean’s surface, and 350-foot-long blades.

Let’s stipulate 12.5 megawatts, since 80 of them conveniently multiply to 1,000 MW. Meeting NJ Gov. Murphy’s 7,500 MW target would then entail erecting 600 of these super-giants off the state’s roughly 115-mile-long Atlantic coast.

GE’s specs for its new ‘Haliade’ wind turbines.

If 600 huge windmills seem daunting, try multiplying the number by five. Yes, 3,000 mammoth turbines providing 37,000 MW from offshore wind is what could be required if New Jersey goes all-in for decarbonization over the next several decades, according to one energy vision that is a kind of apotheosis of the Green New Deal.

The idea of 100% Wind-Water-Sunlight

That vision is the all-renewables 100% wind-water-sunlight (“100% WWS”) conception propounded by Stanford physicist-engineer Mark Jacobson and colleagues, under the aegis of an NGO known as the Solutions Project.

The idea is for electricity to power all energy uses — not just lights and appliances and electronics but also cars, trucks, heat and industry. Even, eventually, aircraft, either through batteries or, more likely, hydrogen fuel manufactured by electrolyzing water. Electricity is both an efficient energy form for delivering “energy services” and the easiest to provide from all-zero-carbon sources: wind turbines, solar panels and other sunlight-based generation, and water power from rivers or tides.

The Jacobson et al. vision has been written about widely (here’s Jacobson’s 2014 TED talk; also see link to pdf paper at the end of this paragraph) and need not be rehashed here. We use it here as a benchmark. References are to the detailed 2015 paper by Mark Z. Jacobson et al., “100% clean and renewable wind, water, and sunlight (WWS) all-sector energy roadmaps for the 50 United States,” Energy Environ. Sci., 2015, 8, 2093 (14 MB pdf).

By The Numbers: New Jersey Offshore Wind in an All-Renewables Scenario (without a Carbon Tax)

  • 32,900 MW — New Jersey’s total 2050 “end-use energy load” under 100% WWS, expressed as megawatts operating continuously all year. From Table 1 of the Jacobson paper.
  • 288,204,000 MWh — New Jersey’s total 2050 “end-use energy load” under 100% WWS, in megawatt-hours. Calculated by multiplying the preceding MW figure by the number of hours in a year (8,760).
  • 55.5% — Share of New Jersey’s electricity to be provided by offshore wind, from Jacobson’s Table 3. Another 10% is assumed to come from onshore wind, for a total NJ wind percentage of 65.5%, which is consistent with Jacobson’s U.S. total of 50% (31% onshore, 19% offshore), considering the state’s small land area relative to its coastline. (Another 27.25% of the needed electricity in the 100%WWS scenario would be generated by utility-owned-and-managed photovoltaic arrays, with another roughly 3% each from PV installations on residential and commercial buildings.)
  • 160,000,000 MWh — New Jersey’s 2050 electricity to be provided by offshore wind. Calculated by multiplying the #2 and #3 figures above.
  • 50% — assumed capacity factor of the offshore wind turbines. That’s more than the 42.5% in the Jacobsen paper (Table 2, FN), but less than the 60-64% that General Electric optimistically touts for its 12-14 MW turbines.
  • 54,750 MWh — annual electricity from each 12.5-MW offshore turbine. Calculated by multiplying 12.5 MW figure by the number of hours in a year.
  • The result: 3,000 offshore wind turbines — calculated by dividing the #4 figure by the #6 figure. (The calculation yields 2,920, which we round to 3,000.)

Can this be done? Can New Jersey install (or, more precisely, organize and govern the installation of) 3,000 giant offshore wind turbines?

A robust carbon tax would let NJ dispense with 35-40% of the offshore turbines

When we posted this blog on March 1, we promised to estimate how much a robust carbon tax could trim the need for New Jersey offshore wind by trimming energy demand.

At the end of the first decade of a U.S. carbon tax starting at $15 per ton and rising annually at that rate, an estimated 37% of CO2 reductions would be from reduced demand/usage. The remaining 63% would come from decarbonizing electricity and fuels. Source: CTC carbon tax model.

We’ve now (March 12) done the calculation: it appears that a carbon tax starting at $15 per ton of CO2 and incrementing annually (and indefinitely) by that amount would achieve roughly five-eighths (63%) of its carbon reductions through fuel-switching, i.e., by swapping out fossil fuels in favor of renewables — wind turbines, solar panels, etc. The other three-eighths (37%) of the carbon reductions would come from reducing energy demand as a result of energy being made more expensive relative to other goods and services.

The latter figure — the 35 to 40 percent reduction — means that New Jerseyans could achieve 100% wind-water-sunlight energy provision with 35-40 percent cuts across the board in the amounts of wind, solar and water power that the Jacobson scenario would otherwise entail. The requirement to build 3,000 giant offshore wind turbines would become “just” 1,800 to 1,900.

April 10 postscript: What do we mean by “monster” wind turbines?

Friend of CTC Peter Jacobsen (no relation to Mark Jacobson; different spelling, in fact) tipped us off yesterday to the size matchup between what the New York Times recently called GE’s new “monster” wind turbines and the smokestacks of what was the largest U.S. coal-fired power plant until its closure in 2019 and demolition last year, the Navajo Generating Station in northern Arizona, near Lake Powell.

The Navajo plant smokestacks were 775 feet tall. Photo, courtesy Power magazine. GE turbine diagram courtesy NY Times.

Some folks view giant smokestacks and giant turbines as pretty much the same. Two decades ago, a newspaper story about a proposed wind farm outside Cooperstown, NY, near the Finger Lakes, closed with a quote from a Manhattan television executive who was retiring to a hilltop home in the area: “I think the towers would make my property worthless,” he said. “To see these giant towers near your house — it would be like driving through oil derricks to get to your front door.”

A few years later, I toured a nearby wind farm while researching an essay on wind power for Orion magazine. “To my eye,” I wrote, “the wind turbines were anti-derricks, oil rigs running in reverse. The windmills I saw in upstate New York signified, for me, not just displacement of destructive fossil fuels, but acceptance of the conditions of inhabiting the Earth.”

To perform calculation: Download CTC’s carbon-tax spreadsheet model (xls). Stay within the first “tab,” Inputs-Summary. In Col. I, make sure Rows 19, 22 and 27 are set to $15.00 and Row 21 is set to Linear. The 37% result may be found in Cell G224. We hope to update the model’s 2017 parameters to 2019 (pre-pandemic) levels by the end of May.

There’s long been a hope that repeated climate crises will force Republicans to enlist in the fight to stop, or slow, climate change. How can you ignore the crisis when it is your constituents who are frozen, your home that is underwater? But what we saw in Texas is the darker timeline — a doom loop of climate polarization, where climate crises lead, paradoxically, to a politics that’s more desperate for fossil fuels, more dismissive of international or even interstate cooperation.”

By

NY Times columnist Ezra Klein, in Texas Is a Rich State in a Rich Country, and Look What Happened, Feb. 25.

 

Data correction reveals 2020 CO2 shrinkage was less than reported

By

Last November, we posted a story, Downturn in U.S. driving led 2020 global CO2 decline, with this lede:

The world’s emissions of carbon dioxide from burning fossil fuels diminished by more than 1.6 billion metric tons in the first three quarters of 2020 from the same period in 2019, a decline of 6.3 percent. Fully one-fifth of the decline, 320 million tonnes, was due to the nearly 25 percent drop in ground transport in the United States, according to data compiled and made available this week by Carbon Monitor, an international collaboration of energy and climate specialists providing regularly updated, rigorous estimates of daily CO2 emissions.

This corrected, 12-month graph replaces the similar graph from our Nov. 17, 2020 post.

Scratch that. Carbon Monitor has reformulated its carbon emissions data for U.S. ground transport. The earlier-reported drop of almost 25 percent in U.S. car and truck emissions has been revised to a mere 9 percent shrinkage — a drop of 153 million tonnes for all of 2020 vs. 2019, rather than a decline of 320 million tonnes for Jan-Sept.

With that revision, as well as natural evolution from adding fourth quarter data, we have these results for 2020 vs. 2019:

  • Global CO2 emissions fell by 1.37 billion metric tons, a drop of 4.0 percent.
  • All eight regions defined by Carbon Monitor registered emission declines, with the exception of China, where emissions rose by 0.5%. Excluding China, world emissions fell by 6.0 percent.
  • The U.S. accounted for 35 percent of the global decline, falling by 477 million tonnes. In percentage terms, the U.S. decline, 9.4 percent, was second only to Brazil’s 9.8 percent.
  • Carbon Monitor calculates emissions for 8 regions and 5 categories, which makes 40 “nation categories” (8×5). The biggest numerical drop by far was in ground transport (driving ) in the “Rest of World” catch-all category: 370 million tonnes, or 13.9 percent, a figure that feels suspiciously large.
  • With that caveat, ground transport accounted for 52 percent of the net decline in emissions, falling by 710 million tonnes. The greatest percentage drop was in domestic aviation, 32 percent.

Carbon Monitor, a British-based NGO that labored mightily to collect the underlying data, hasn’t posted an explanation for radically revising the U.S. ground transport datum. We wrote to its volunteer staff in mid-January to report that gasoline and diesel fuel data from the U.S. Energy Information Administration indicated much lesser drops —  around 13 percent in CO2 emissions from automobiles and 9 percent for trucks, rather than their 24.5 percent for ground transport overall.

We suggested further that CM’s methodology, which relied on extrapolating from reported changes in urban traffic congestion, appeared to grossly underweight changes in suburban and rural driving, which would have created a sharp upward bias in the group’s estimated reduction in emissions. It now appears our hunch was right.

The green table at right shows that by far the steepest decline in global emissions came in domestic aviation, at 32 percent. (International air travel isn’t counted in any of the categories.) Many air travelers deemed it unwise to spend hours in confined aircraft spaces, and teleconferencing filled in for most business travel. The reduction rate might have been higher still, but for “ghost flights” resulting from byzantine government regulations and financial incentives.

The donut chart at left provides another view. It arranges 24 of the 40 “nation categories” in descending order of their 2020 vs. 2019 emission reductions. (Four other categories had emissions increases, two were flat and another ten were too minor to warrant including.)

Finally, some U.S. takeaways:

  • The overall U.S. emissions decline, 9.4 percent, far outweighed the 3.5 percent year-on-year drop in real (inflation-adjusted) gross domestic product, or GDP.
  • The decline in CO2 emissions from U.S. power generation, 166 million tonnes, slightly outstripped the 153 million tonne decline in ground travel. In percentage terms, the 10.3 percent drop in electricity emissions outpaced the 9.3 percent decline in emissions from cars and trucks.
  • Final 2020 electricity figures will almost certainly show coal-fired electricity production and tons of coal burned at power plants at their lowest levels since before the 1973 oil embargo and OPEC-engineered oil price rises that spurred conversion of oil-fired generation to coal. (Even in 2019, U.S. coal-fired plants produced their fewest kilowatt-hours since 1978, the year preceding the Three Mile Island reactor meltdown, which also spurred an overnight switch to coal, as dozens of reactors were throttled for safety checks.)

U.S. emissions (not to mention world CO2 as well) appear set to roar back this year, as the imminent Democrats’ relief-stimulus package injects nearly two trillion dollars into the economy and pandemic-weary Americans seek to regain normalcy by spending and traveling. The Biden administration will need to move broadly and rapidly with low-carbon infrastructure and incentives to keep U.S. carbon emissions from rebounding sharply over the next several years.