Just rewards

The Nobel Prize for Chemistry at last recognizes John Goodenough and his revolutionary battery.

The Nobel Prize committee for chemistry took their time but finally did the right thing:

The Nobel Prize in Chemistry 2019 was awarded jointly to John B. Goodenough, M. Stanley Whittingham and Akira Yoshino “for the development of lithium-ion batteries.”

Yours truly has been agitating for this since 2017. I’m sure far more influential voices than mine have been making the case, though I’m still quite proud of the letter I sent them (reproduced in the post), and repeated last year.

It’s particularly gratifying that John Goodenough is still alive to receive the prize. He is amazingly fit and still working, but at 97 nothing can be taken for granted.

Many chemists, including him, are trying to find a better battery formulation, but so far, your mobile phone (revolution one) and future electric car (revolution two) still run on the battery he and others invented over 30 years ago.

If human civilisation gets through this mess, he and his colleagues will be on the short list of unlikely heroes and heroines who gave us a chance.

Thank you, John, Stanley, and Akira, from all of us.

My climate strike

Joining the striking kids in Malaga

Lu and I joined the children’s climate strike in Malaga yesterday.

Can you spot the odd man out? Photo by Lu

The photo is slightly misleading in that the majority of the protesters were older, with a surprising number of Seniores. A decent if not startling turnout, and all very good-humoured.

Our information-rich poster. Translation at the end. Bus by Playmobil. Hollin is soot – the streaks are the real thing from my wood-burning fireplace. The QR code links to a paper in Nature Communications, but only one other participant took a photo of it. No media in sight.

I did quite well on photos otherwise: several dozen. Very markedly, there was disproportionate interest from middle-aged women. I assume it’s the placenta reference: it doesn’t connect in the same way to young nulliparae.

If I were Francisco de la Torre, the 77-year-old PP mayor of Malaga, would I be worried enough to reconsider my policies? For instance on slow-walking the buying of electric buses? I doubt it: we weren’t enough, nor sufficiently focused. A lot depends on whether Greta’s army, or its parents, will get down to the plank-boring work of political organization. The Occupy Wall Streeters notoriously failed to make this transition. But I might be more worried by the middle-aged women, the kind that go to meetings, who may now be circulating photos of my poster and others on their FB feeds.

Continue reading “My climate strike”

Financing hydrogen iron

A wonkish plan for problem industries in the energy transition.

We know how to make the electricity supply renewable. We know how to make land transport electric. Both are on track. But there are four problem industries where things are not so clear.

These estimates are not all for the same year and not strictly comparable, but they are good enough to make the point that to reach net zero emissions, the four sectors (together 20% of global fossil emissions) cannot be ignored.

The challenges are distinct but they have common features.

  1. Very plausible technological pathways exist to decarbonise. But these are not mature, and for the moment they are far more expensive than BAU.
  2. There is no guarantee or strong expectation that technical progress will ever eliminate the cost barrier, in contrast to electricity and land vehicles.
  3. The industries are typical of modern capitalism: they are international and oligopolistic, with a lot of trade, a handful of large companies, and a myriad of small ones.
  4. Their products and services rarely have plausible substitutes. (We shall see later on why this matters).

Points 1 and 2 mean that the issue for public policy is not R&D (pace all the Democratic presidential hopefuls) but early deployment.

Recall how we got to cheap wind, solar and batteries. It wasn’t a carbon tax, since that does not exist anywhere in the pure form. Partial cap-and-trade exists in the EU, but it has only just started to bite, after giveaway initial allocations. It was done by subsidies for early deployment to create economies of learning and scale:

  • In the USA, tax breaks for wind, solar, and electric cars; renewable obligations at state level.
  • In Europe and China, tax breaks, subsidies, and regulatory privileges for electric cars.
  • FITs and ringfenced auctions for wind and solar generation in Germany, other European countries, China and India.

The costs of FITs have been large in the past, though the cumulative liability (in Germany for instance) has now almost stopped growing as the few surviving FITs are near market rates. Well worth it of course, especially if you aren’t a German consumer.

The same principle holds for our four problem industries. Carbon taxes are politically toxic, and a coordination nightmare in globalised industries. So what’s the workable second-best kludge?

I’d like to float a possible solution. I’ll take steel as the example. The principle extends to the others ceteris paribus.

!

Dominion backs V2G

A big US utility subsidises school buses as grid batteries.

As a rule I don’t post much on renewable technology. The news is of a steady flow of small, unremarkable, incremental improvements that keep making wind and solar energy ever cheaper. It’s the prices that do it. But every so often, something bigger happens. I think it has here:

Dominion Energy Virginia has published a bullish plan to convert 50 school buses in its territory to electric buses by 2020. That’s just the start, as the company plans to add 200 more per year to hit its target of 1,050 fully electric school buses by 2025.
The company has a request for proposals in the works for electric vehicle manufacturers with plans to open the application to school districts in its Virginia territory this Friday, September 5th, 2019. […]
Dominion is excited to use the buses as vehicle to grid (V2G) batteries, and what’s even better is that the company has stepped up to pay the difference in price between traditional diesel buses and the fully electric buses in order to gain access to this new V2G resource.

V2G – vehicle-to-grid – is the idea of using electric vehicle batteries as storage for the grid. If it works, the potential is vast.
In 2018, there were 5.1 million electric cars on the roads worldwide, and 460,000 buses. (IEA Global EV Outlook 2019 ) Taking 30 kwh as a representative battery capacity for cars (Nissan Leaf) and 320 kwh for a representative electric bus (BYD K9), we have a total EV battery capacity of ~300 Gwh. The global light vehicle stock is about 1 billion, so EVs only represent 0.5% of it. But the growth rate is staggering – over 50% per year. The IEA suggests a global EV stock of 130 million in 2030 in its New Policies scenario (reflecting current policy ambitions), not much more than 10% of the stock allowing for market growth. We would then have a global vehicle battery capacity of ~7,800 Gwh, with plenty of upside.

Suppose we can tap a mere 10% of this for V2G. That’s ~780 Gwh. The Bath County pumped storage dam in Virginia, still the world’s largest (though not for long) has a storage capacity of 24 Gwh. V2G at scale would make a serious dent in the firming problem for very large-scale wind and solar. And it’s a very cheap solution compared to pumped storage or grid batteries: the owners of the vehicles will have bought the batteries anyway, and would not need to be paid much to lend them to the grid with appropriate guarantees and at minimal inconvenience.

A schematic illustration how this would work using Dominion’s school buses (my timetable guesses, not their estimates). On a working day:

  • 0000h – 0630 h: charge bus batteries in garage to 100%
  • 0630h – 0930h: morning school run, buses return to garage with average 33% charge
  • 0930h – 1600h: charge bus batteries in depot to 100%; available for V2G but not used much
  • 1600h – 1900h: afternoon school run, buses return to garage with average 33 % charge
  • 1900h -2400h: interruptible charging; >33% of bus battery capacity available for V2G to meet evening demand peak.

That’s for the 200 school days a year. For the other 165 days, the buses just sit in the garage, working exactly as grid batteries.

The scheme depends on the fact that any bus operator will buy a number of identical buses, but these will follow a mixture of longer and shorter routes. On the shorter ones, the buses don’t exhaust the charge. Given that Dominion is subsidising the purchases, they will be able to insist on as much over-capacity as they want.

There are several takeaways from this news. Continue reading “Dominion backs V2G”

Holes in the ground update

Warren half-way supports my pumped storage plan.

Some random blogger, last month, arguing for a large US investment in pumped hydro storage:

Picking with a pin, a 100 GW initial programme looks reasonable. […] it will cost a ballpark $60 bn. […] Where should the dams go? As a climate justice measure, it has to be Appalachia, since that is where most of the unemployed miners are and will be.

Candidate Elizabeth Warren, adopting Inslee’s climate plan with bells and whistles, earlier today:

We’ll provide dedicated support for the four Power Marketing Administrations, the Tennessee Valley Authority, and the Appalachian Regional Commission to help them build publicly-owned clean energy assets and deploy clean power to help communities transition off fossil fuels. And we’ll expand investments in smart energy storage solutions and cybersecurity for the grid.

Pretty close. The only thing the Appalachian Regional Commission can usefully spend money on is pumped storage, so Warren’s plan would buy some. However, her plan lacks specificity, numbers, and immediacy. “If you build a Bath County dam here, it will create 1,000 jobs for five years”. She achieves this elsewhere:

I’ll also invest in electric vehicle charging infrastructure, including ensuring that every federal interstate highway rest stop hosts a fast-charging station by the end of my first term in office.

See the difference?

China is currently building 30 GW of pumped hydro, on top of the existing stock of 19 GW, a shade under the USA’s 24 GW. The programme includes one 3.6 GW megaproject at Fengning which will knock Bath County from its three-decade reign as the world’s largest. Another 6 GW has just been added to the pipeline, taking the future total to 55 GW. The USA is being left in the dust and should aim at a bare minimum to match this.

The ambitious rollout is steered by China State Grid, the huge national high-voltage transmission monopoly. Warren’s plan leaves out a national grid too, merely rebranding FERC, weak tea by her high standards. But it may be good politics. Steering new funding to existing public bodies can be got through Congress by reconciliation. A national grid and electricity market would need primary legislation, a very scarce resource in the Warren (or Sanders or Biden) Presidency.

FWIW, if I were an American Democrat and primary elector, I would focus less on the details of the rival climate plans, and more on the ability of the candidates to get anything done. The plans will converge, as there are few serious ideological divides among Democrats equivalent to those on universal health care. The nearest is on nuclear power. Sanders rules it out; Biden will spend on research; Warren ducks. Fair enough, as the practical question is merely how much money to throw away on new reactor designs that will never be built commercially at any scale. Nuclear is a side-issue, not worth wasting political capital on. It’s more important who the new President would appoint as Secretary for Energy.

Footnote

For aficionados, there’s an interesting machinery-of-government angle. One part of the DoE’s job is minding the nuclear weapons stockpile and nuclear waste. These are thousand-year headaches, with no tolerance for mistakes, and highly technical, though they only create major policy issues irregularly. That is why Obama appointed top-flight nuclear physicists as Secretaries. This inevitably creates a pro-nuclear bias in the other side of the job, energy policy. Warren (&c) might consider hiving off the nuclear stewardship job to a distinct non-Cabinet agency with considerable professional autonomy, like the Fed, and a real scientist in the Chu or Moniz mould as head. The Cabinet-level energy and climate czar would have plenty of other things to do, leading a multi-trillion-dollar GND.

A Grunberg side-effect

Cute children for the climate

A PR photo taken at the opening on Thursday of an offshore wind farm in Denmark:

Caption supplied:

At the Horns Rev 3 opening, left to right: CEO of Vattenfall Magnus Hall, Chairman of Vattenfall Lars G. Nordström, HRH Crown Prince of Denmark, Danish Prime Minister Mette Frederiksen, Minister of Climate, Energy and Utilities Dan Jørgensen, and pupils from Hvide Sande School

Credit: Vattenfall, via Recharge

What are the smiling kids doing there? Their contribution to building the wind farm is nil. They were roped in to show that the powerful adults in the back row are Concerned about future generations. Should I blame Greta Grunberg, or John Kerry, who took his scene-stealing granddaughter along to sign the Paris Agreement in New York?

Picky, picky, you say. If it helps and does no harm to the kids, fine. But let’s not mistake charming photo ops for action. To be fair, in this case they had some action to celebrate. The wind farm is for now the largest in Scandinavia, with a nameplate capacity of 407 MW.

There is much more cuteness to come along these lines.

PS: On reflection, there is a clear distinction between the Kerry photo and the Danish one. Kerry’s granddaughter is interacting with him, not the assembled grandees. She is fascinated by Grandpa’s behaviour; he is doing something unusual she does not understand, but it’s clearly very important to him, so she wants to be part of it. In the Danish photo, there is no interaction, the adults are not looking at the kids or talking to them. They are just exploited extras on the stage. Maybe the suits talked to the kids at another time, but it’s not what the photo says.

One clean beach

Why is my local beach now free of plastic litter?

No pretty photograph for this one. How can you take a snap of something that isn’t there?

Plastic litter on my local beach, that’s what.

I moved to Spain 15 years ago. My beach walks were interrupted by regular collections of litter, almost all plastic of one sort or another: drinks bottles, throwaway shopping bags, formless lumps of polystyrene, broken tangles of fishing net. It was densest along the shoreline, so jetsam (nice word: its counterpart flotsam is floating junk).

Recently I have had to leave my spandex Supergramps suit at home. There is hardly any to collect. On reflection, the change has been slow, though I’ve only just noticed it. Why has this happened?

Continue reading “One clean beach”

Trump’s War on Coal IV

In the second of this series of posts, I reported on data from the SEIA and consultants WoodMac that cast doubt on FERC’s forecasts of “highly probable” new solar installation in the USA. I went so far as to characterize these as “politicised rubbish”.

At the time I did not have comparable data for wind. Now I do. In a press release, the American Wind Energy Association (AWEA) reports:

Of the total wind pipeline, 17,213 MW were under construction across 21 states at the end of first quarter. [….] Project developers also reported 21,949 MW of wind capacity in the advanced development stage, which also reached a record level. Projects in advanced development have not yet begun construction but are likely to come online in the near term because they have either signed a long-term contract, placed turbine orders, or are proceeding under utility ownership.

My italics.

The AWEA definition corresponds very closely to the SEIA/WoodMac criterion for solar and to any common-sense interpretation of the term “highly probable”. So FERC have got this badly wrong too.

Putting the data together for your convenience, I get this:

The implied coal retirements in the last line – implied by the AWEA and SEIA/WoodMac data – are based on the assumptions of static demand for electricity, one-for-one substitution of renewables for coal, and no change in the latter’s break-even capacity factor (CF). The continuous-equivalent number for the announced retirements is just reached by applying the fleet average and is probably inaccurate, but it plays no part in the rest of the calculation. Note that old coal plants are inflexible, unlike gas, and don’t contribute much to the needed firming backup for cheap intermittent renewables.

The table also assumes that all the utility projects listed by SEIA/WoodMac and the AWEA will be completed in the three-year horizon used by FERC. This is very likely, though recently solar developers have started signing PPAs with delivery as late as 2023. The CFs for wind and solar are conservative, as technical advances are still raising them.

The estimate therefore has a fair margin of error. But it does strongly suggest that coal retirements of well over twice those already notified to FERC are already baked into the cake, with more on the way.

* * * * * *

Politically, the key factor is how many more coal jobs are lost in the next 15 months, before the 2020 elections. Here the picture is much less clear, but qualitatively similar.

It’s a fairly safe assumption that all the wind and solar farms currently under construction will be working by the election and cutting demand for coal. Since solar is very quick to build once ground is broken, this may imply a large underestimate. Using the same simple methods as in my table, that translates to 11.5 GW of redundant coal generation. The actual coal plant closures may be delayed or anticipated; the impact on mining jobs will be immediate.

The number is in the same ballpark as recent experience. 15 GW of American coal plants closed in 2018, displaced by gas as much as renewables. ( I don’t attempt to take account of gas here, but it’s more bad news for coal.) The acceleration I predicted, and still do, looks as if it will come after the election. However, the now certain job losses, and the equally certain prospect of many more to come, will already be on a sufficient scale to show up Trump’s promises in 2016 to American coal-miners as a cynical fraud.

It looks as if Appalachians generally are slowly getting the message. Trump’s approval ratings in selected states, Morning Consult, for now and at the start of his term:

Update 3 September

To do the FERC staff justice, they have changed the concept again and now less subjectively list new generating plants “under construction”. In the “energy infrastructure” report for June, the numbers I am interested in are:

  • coal plant retirements to July 2022 16.3 GW (+3.0 GW from May)
  • wind under construction 27.1 GW (+1.6 GW)
  • solar under construction 17.1 GW (+2.3 GW)
  • gas under construction less retirements 21.7 GW (+3.5 GW)

The small victory for professionalism should be praised. Note however that since wind and solar plants take at most 2 years to put up, FERC’s table is no longer very useful as a three-year projection. What we can say is that at least 44 GW of new wind and solar will be up and running before next November, and cutting coal sales. I make that 22 GW of coal generation replaced, plus up to another 13 GW from gas.

Holes in the ground!

The case for a large pumped storage programme in Appalachia

Senator (and Presidential pre-candidate) Kamala Harris and Rep. Alexandra Ocasio Cortez (not a candidate but lefty star) have published a draft Climate Equity Act. Here it is (pdf). It provides for principles, an Office, reports, consultations, and a platform for “frontline communities” to share their pain with the denizens of the Beltway. It reads like the work of a New Age therapist working in the bureaucracy of the late Austro-Hungarian Empire.

Missing: any proposals for action that would actually do something for unemployed American coal-miners in say Harlan County, Kentucky.

Here’s my idea.

A 100% renewable electricity grid – actually a 90% one – based on cheap wind and solar electricity needs a lot of backup or firming to cover the gaps when there is no solar output (called “the night”) or little wind (week-long lulls mainly created by the procession of anticyclones that drive the weather in middle latitudes). Today, there is enough legacy baseload coal and nuclear power to reduce the problem, and natural gas to deal with what’s left, but they are all going to phase out soon in the GND. Actually the coal will go anyway regardless of the GND from price competition, and nuclear from age, but this plan is for GND supporters.

There is a longish list of technically feasible solutions or part-solutions. None of them are really cheap; but then, a good part of the cost of the electricity you buy today is to cover the rarely used peak generation capacity and the unused reserve. There are no free lunches here.

Sources: personal guesses except for deployment, for which here (pdf)

There is a lively argument in the “100% renewable” expert trade about the best method of firming. Very lively. Mark Jacobson went so far as to sue Christopher Clack for a hostile rebuttal of his first scenario for the USA, relying for firming on a rather peculiar scheme, since dropped, of retrofitting all existing US hydropower dams to run in burst mode, at much higher outputs for much shorter periods. I don’t include this false start.

Some of these technologies are in flux, others mature. It is therefore impossible to predict now the lowest-cost firming mix ten years ahead. The problem is that in a ten-year GND transition, there isn’t time to let things settle down. Some big spending decisions will have to be taken in the next few years, and some of them will turn out to be wrong in the sense of diverging from the optimum – there is not much risk of being stuck with an asset that simply does not work. The priority is as always to ensure a reliable supply, not to assure ratepayers suffering from power cuts that you were prudently trying to save them every last cent on their bills. The compressed timescale also calls for a strong federal policy lead and assumption of risks.

I want to make a case here for off-river pumped hydro storage (PHS).

It may not work out the cheapest in the end, but it’s a mature technology with no technical risk, known and reasonable costs, long working life, modest environmental impact (note off-river), and scaleable to any volume you want. Existing plants (pdf) provide 95% of the current US utility storage capacity. Its problem is that dams take a long time to build: at best five years, though with much less construction risk than nuclear plants. If the USA is going to rely on pumped storage to any significant extent, it will have to start building it out by 2025. There is no technical reason not to start sooner. Storage replaces peak gas immediately as soon as there is a worthwhile volume of wind and solar, which you already have.

Satellite view of Bath County PHS dams. The penstocks are inside the mountain. The height difference is 385 metres. Source

At least one expert, Andrew Blakers of the Australian National University, strongly recommends pumped hydro as the basis for firming a wind/solar power supply, along with more HVDC transmission. He has constructed 100% renewable scenarios (pdf) for the Australian NEM (the grid covering the populated East and South) using just these four technologies, with hourly balancing to match the current demand. This balancing costs an additional midpoint US$21 per Mwh on top of the raw wind+solar LCOE of midpoint US$49, a markup of 43%. His paper gives the (narrow) ranges and offers a large number of variants tweaking the assumptions in different ways. His base case calls for 16 GW of storage for 31 hours, making 490 Gwh, balancing a total annual demand of 205 Twh. The capital cost of the storage, based on replicating a standard unit costed by a hydro engineer, is US$600 per kw or US$9.6 bn for the whole package.

To get an order of magnitude for a US programme on the same lines, we will just scale up Blakers without any apology or attempt at adjustment. US consumption of electricity is 4,070 Twh a year, so the model calls for 318 GW of capacity at a cost of $191 bn. (Cross-check: the one-off PHS plant at Bath County, originally 2.1 GW, cost $1.6 bn in 1985, so on that basis 318 GW would have been $242 bn. The order of magnitude is OK, and there has been technical progress since in reversible generators and in tunnelling.)

Since we don’t know whether the alternatives will be cheaper or dearer, it does not make sense to put all the eggs in one basket. However, we can be pretty sure that PHS, as the dominant historical storage technology and still much the cheapest, will play a significant part. Picking with a pin, a 100 GW initial programme looks reasonable. As of 2017, 40 new PHS sites were already under active investigation by utilities and licenses applied for with eight, so we won’t start absolutely from scratch. But if we do, it will cost a ballpark $60 bn. In the context of the multi-trillion overall cost of the GND, this is clearly doable. The plants are long-lived revenue-earning assets: storage has a price, sometimes a high one. I don’t know what the ROI will be, and doubt if it matters very much.

PHS plants are very flexible on size and can adapt to different geographies. The world’s largest PHS plant, at Bath County in Virginia, has a capacity today of 3GW / 24 Gwh. But many working plants are much smaller, down to 100 MW or so. The programme could be met with 33 Bath Counties or 1,000 100 MW plants, or anything in between. The power generated is proportional to the head, and you can get more work from a given size of reservoirs if you can site the upper one higher. This all gives the planners a great deal of flexibility.

Where should the dams go? As a climate justice measure, it has to be Appalachia, since that is where most of the unemployed miners are and will be.

The mountain range is very extensive, seismically inactive, and high enough with typical crests of 900m. You only need 300m or so height difference for a decent PHS scheme. The number of potential sites is so large that the choice can often be made on grounds of economic deprivation. Socially, dam-building is a nearly ideal economic stimulus. The jobs are manly to match an old-fashioned culture, moderately skilled (highly skilled for tunnelling), and last for several years. Contrast suggestions that unemployed Appalachians should be retrained for installing solar in a foggy climate, or wind turbines on the few suitable hilltop sites, clashing with recreation.

How many jobs will be created? At its peak, Bath County had 3,400 workers on site. Applying the same ratio to our 100 GW programme, that would give 113,000 jobs. This is not realistic: smaller dams have different demands to big ones, the employment peaks won’t be synchronised, tunnelling machines are much better, and so on. But it is certainly enough to put a sizeable dent in unemployment across the region, before counting the spending multiplier in local communities. The ambition of the whole programme may even be constrained by the availability of workers. The jobs are only for a decade, but this buys time to develop other opportunities.

How to set up the programme? It is both large and specialised. The obvious solution is to copy Roosevelt’s TVA and set up the Appalachian Storage Authority, under a joint federal/inter-state governance structure, with borrowing and eminent domain powers and so on. It could have a fixed 20-year life, and sell the dams on to states or utilities before winding up. A programme of earmarked federal grants to states would risk sabotage by GOP state governments, which have shown on the Medicaid expansion that they are prepared to sacrifice the welfare of their citizens to ideology. Centralisation and standardization should also work out cheaper in design and project management. There are risks either way.

I don’t know if the scheme can realistically be extended to the Powder River Basin miners in Wyoming. Since their mines are open-cast and highly automated, the miners are far fewer – 5,535 in the state in 2018.  The Rockies have even more and better potential sites for PHS than the Appalachians but they are not SFIK anywhere near the mines. I suspect the climate justice warriors will have to think of something else.

Question to Senator Harris and Representative Ocasio-Cortez:

  • Do you support this plan or something like it?
  • If not, what is your alternative plan that gives former coal miners decently paid jobs where they and their families want to live?

Suppose you both win your political and electoral battles. If you content yourselves with just creating a cool new federal bureaucracy for climate justice, the miners will say: you may be prettier and better spoken than Mitch and Manchin, but in the end you are just another pair of politicians who spin fine words and let us down. They won’t be entirely wrong.

Footnote 1

In this post I have ignored the steelworkers and other groups in Appalachia whose situation is often just as bad as that of coal-miners. The issue here is framed by the two representatives as climate justice, implying specific action for those who must lose their jobs to secure the essential energy transition. In Appalachia, that means coal-miners, and they are the measuring-stick for my plan and for any alternative. The plan will of course benefit other groups as well, and these wider benefits should be considered in the planning.

I have no idea what to do for Texan oilfield roustabouts. They are doing all right for now, but that won’t last. Let’s think of something.

Footnote 2

The title is, as alert RBC readers will have spotted, a h/t to this famous passage of Keynes:

If the Treasury were to fill old bottles with banknotes, bury them at suitable depths in disused coalmines which are then filled up to the surface with town rubbish, and leave it to private enterprise on well-tried principles of laissez-faire to dig the notes up again (the right to do so being obtained, of course, by tendering for leases of the note-bearing territory), there need be no more unemployment and, with the help of the repercussions, the real income of the community, and its capital wealth also, would probably become a good deal greater than it actually is. It would, indeed, be more sensible to build houses and the like; but if there are political and practical difficulties in the way of this, the above would be better than nothing.

General Theory, Chapter 10, section VI

My dams, being useful, are “houses and the like”.

Footnote 3

As in Australia, the national grid is a good way of keeping storage costs down through geographical smoothing. The Australian population, and hence the variability of demand, is crammed into a single vertical time zone. An HVDC line from Sydney to Perth captures useful smoothing of wind and solar supply but not of demand. From New York to San Francisco, it does both. The grid has an even higher payoff in the USA, lowering the storage costs.

Footnote 4

If anybody wants to talk to someone who really knows about this stuff, Andrew Blakers is in the phone book: +61 2 612 55905, andrew.blakers@anu.edu.au

Update 08/08/2019

Blakers points me to a world atlas his team has prepared with 616,000 (not a typo) potential pumped hydro storage sites identified from satellite images. The theoretical collective storage capacity is a hundred times anything we are likely to need. Some of them are in places like Patagonia and Kamchatka that are fairly safe from the bulldozers, but that still leaves innumerable more useful locations. The database lists 33,000 site pairs in the USA, the majority in the Rockies  but a good number in the Appalachians – eyeballing, a few thousand. Total US potential storage 1.5 million Gwh. (The huge spreadsheet does not help you find geographical locations, to explore you have to work off the detailed zoomable map, example here, and then copy and paste the coordinates into Google Earth). Some of these sites will be home to protected snail darters or the like, others would drown the governor’s hunting cabin. That still leaves plenty.

Nuclear zombies

Kevin Drum goes off the rails. (Uncharacteristically; here is his nice tribute to Mark .)

I’d like to point out just how easy a non-carbon form of capitalism would be—and not just to imagine, but to accomplish. Here it is:

Over the next ten years, build about 5,000 standardized 5 TWh nuclear reactors worldwide and retire all fossil-fuel plants. Mandate a 20-year switch to electric vehicles. This would cost around $3 trillion per year, which isn’t much, and would cut carbon emissions by about 80 percent. Done.

Note that I’m not recommending this, nor saying that it would be mere child’s play. I’m just saying it’s far more feasible than reconstructing the entire global economy over the next decade …

Where to begin? This post will be completely unoriginal, but if it brings well-worn facts to the attention of a few new readers, it will be worthwhile. (Shade of MK: don’t be afraid to repeat the truth.)

One: no nuclear power reactor can be built anywhere without a cast-iron government guarantee replacing third-party liability insurance and government assumption of responsibility for waste, in practice a non-market price too (Hinkley C). A mass reactor buildout is the most socialist project you can imagine.

Two: As of mid-2018, 50 power reactors were under construction worldwide. The industry struggles and fails to build them on time, let alone to budget. The 50 have on average been under construction for 6.5 years. “The average construction time of the latest 53 units in nine countries that started up since 2008 was 10.1 years with a very large range from 4.1 to 43.5 years.” (World Nuclear Industry Status report, 2018, pdf). This is the best today’s battle-hardened reactor builders, the survivors in a steadily declining industry, can do. Building 5,000 at a time would have to be done by completely inexperienced workers, engineers and project managers. What could possibly go wrong?

Three: Drum thinks that worries about safety and costs can be addressed by using new designs: Generation IV, thorium, small modular reactors. No full-size commercial prototype exists for any of them, or even a fully licensed design. The normal procedure would be to build a handful of prototypes (at best 5 years construction, plus a crash two years for design and approval). Then you mass-produce the most successful prototype, betting there is one (another 6 years, allowing just one for design). So you don’t make any impact on emissions for at best 13 years, beyond the deadline for action set by the IPCC. Historical experience suggests 20 years. Plan B is to forget about prototyping and go straight to building 5,000 full-sized power reactors using completely untested designs and builders with no experience. This is not sane. (H/t to John Quiggin for emphasizing the timing issues.)

Four: Lazards’ 12th survey of US generating costs gives the comparative unsubsidised LCOEs per Mwh as:

  • Utility PV solar $40 – $46 (midpoint $43)
  • Onshore wind $29 – $56 (midpoint $42.5)
  • Nuclear $57 – $148 (midpoint $102.5) $112 to $189 (midpoint $151)

The wind and solar numbers are hard data from hundreds of developers. The nuclear ones are optimistic guesses, as no new reactor site has been started in the USA for just short of a decade. This shows what real capitalists think of the technology. I wonder what snake-oil salesman Lazards got the $57 low number from: it’s entirely out of line with recent experience in the USA and Europe with reactor construction. [Update: Sorry about that] The unsubsidised tag is incidentally a joke – there is no market price for the state guarantees for nuclear. So even in the best-case scenario, new nuclear in the USA will cost twice three times what you can get wind and solar for. There is no reason to think the global pattern will be significantly different. [Update: Jacobson gives the cost ratio as 2.3 to 7.4 , consistent with my rough estimate]

BUT, say nuclear advocates, nuclear reactors offer reliable! baseload! supply (90% availability) while wind and solar are intermittent (hiss hiss) and have to be firmed with gas or storage. This is a half-truth. The true part is that wind and solar do need firming with despatchable storage and transmission; I’ll go with Andrew Blakers’ calculated markup of 50% for Australia (pdf). But nuclear plants are lumpy and also need backup in case they have unplanned outages, an infrequent but regular event. (Simultaneous mechanical failure of equivalent volumes of wind turbines or solar panels is is no more likely than a giant asteroid strike.) Most of the world’s pumped hydro storage was built as backup for nuclear plants. Let’s say we need a 25% safety margin, either in the form of excess nuclear plants or the same mixture as for renewables. That pushes up your costs.

In addition, the claimed “baseload” feature is a bug to grid managers. Electricity demand cycles over the day and the year. Let’s just look at the daily cycle. A random day in January in California:

Source: Vox

The minimum load, about 21 GW, is in the small hours. The peak, at 6 pm, comes in at about 32 GW, 50% more. So California would, in Drum’s scenario, need 23 GW of nuclear (at 90% availability) to cover the baseload. But going all-nuclear, it needs another 12 GW to cover the peak – running around half the time. That hits the LCOE, which is based on running round the clock. The average capacity factor drops to 26.5/35 or 76%. It’s lower again if you superimpose the annual cycle. By itself, the lower CF pushes up the LCOE by at least 15%. At first sight that’s not too bad, but power reactors are designed to run all the time. Ramping them up and down imposes stresses and shortens life, though the French are forced to do it with their huge nuclear fleet.

Taking these factors together, the various operational constraints just about balance the availability advantage of nuclear and maintain the proposition that 100% nuclear would cost at least twice three times the 100% renewables solution.

Drum costs his thought experiment at $3 trn a year. Using the same back-of-a-napkin methods, say $1 trn for EVs, leaving $2 trn for electricity, of which $0.5 trn for renewables, so $1.5 trn for nuclear reactors or $15 trn over ten years. I have shown that half two-thirds of this, $7.5 $10 trn, is an opportunity cost over wind/solar/storage. In what universe does it make sense to waste trillions of dollars on an unreliable and complex technology with problems we know all too much about?

I could go on: the waste headache, proliferation risks (Iran), the negative learning curve (in contrast to the well-behaved ones for wind, solar, and batteries, and known flat costs for pumped hydro and transmission), and fading public acceptance after Chernobyl and Fukushima. But the issues I’ve covered are enough to make it crystal clear that nuclear power is an obsolete, expensive and multiply risky technology we no longer need. Time to draw a line, break the bad news tactfully, and present the gold watch for long and moderately faithful service.

What annoys me most about Drum’s little jeu d’esprit is the subtext that since a massive rollout of nuclear power is evidently impossible, so is the whole GND or fast transition. This is false. As I’ve noted here before, cost estimates of the energy component of the GND from supporters (Jacobson) and foes (Holtz-Eakin), come in quite similar, under $1 trn a year, before netting out the current investment in oil and gas. This is large but practicable in the $20 trn a year US economy.

Zooming in, FERC thinks there are 188 GW of renewable generating plants being planned in the USA for installation in the next three years, say 63 GW continuous equivalent at an average 33% CF. The remaining coal capacity a year ago was 268 GW or 144 GW continuous equivalent. If all the planned renewables are built, they will make 44% of the coal fleet redundant in three years. Not all of them will see the light of day, but most will because they are cheaper and, with storage and gas backup, do the job just fine. A complete phaseout of American thermal coal in the next decade is not only feasible: it’s what current trends predict.

(Shade of Mark Kleiman again: Is it about something that matters? Check. Have you proofread for typos? Check. Source links and quotations verified? Check. [Update: not carefully enough, I’m afraid.] As short as needed to make the point? Guilty, but you know me.)