Monday, October 21, 2019

Climate Solutions BS in Houston by AIChE

Subtitle: Still BS - Bad Science, No Solutions Needed

I attended a lunch presentation by Dr. Tom Rehm, 2019 Chair of STS-AIChE on October 18, 2019 on Climate Solutions, in LaPorte, Texas.   (STS is South Texas Section)

The main points are below in bold font, with my comments in parentheses.  These are based on my notes made at the time, and may not perfectly reflect what was said; any inaccuracies are due to what I believe I heard at the time. 

(Preface:  I believe that Tom Rehm is sincere in his beliefs about catastrophic, imminent global warming caused by CO2, however he has stated in public that even if it is not true, it is prudent to do something to prevent it.  (my paraphrase, probably not his exact words).  I suspect he is also sincere in his belief that nuclear power is the planet's saviour, and that all plastic production must end and rather soon.  It is disconcerting that the STS of AIChE has taken this approach, with those beliefs based on very bad science and not on the facts.  However, the chairmanship is for only one year, and Dr. Rehm will soon hand over the chair - January 1, 2010.  It seems, though, that the incoming Chair has similar views.   That is actually ok, though, since the solutions being advanced are not workable, will have outrageous impacts on all of society, require massive government support, and cannot be implemented in less than 5 decades anyway.  By then, the inevitable global cooling will be advanced and more than evident to everyone. -- End Preface) 

The main points:

UHI, urban heat island effect, is due to aerosols that cooled the air until approximately 1980, then cleaner air caused the cities to warm.  Clean air laws were enacted.  
(That is nice to see the effect of man-made aerosols mentioned, as that is one of the several causes of warmer temperatures that have nothing to do with increased CO2 in the atmosphere.  SLB has articles on the non-CO2 causes of warming, see link. )

Population decreased in a few urban areas but temperatures increased, therefore warming is not correlated to population growth. 
(This is an attempt to show that increased temperatures are not related to population growth, however I have asked Tom in the past how does he know the temperature increase in those few locations were not related to drought, El Nino, cleaner air, fewer clouds, more local humidity, and a host of other known causes of warming?   He made no answer then.)

USCRN, United States Climate Reference Network, has more than 100 pristine sites across the US, sites with no urban warming influence for the foreseeable future.   Mentioned Stovepipe Wells, CA (actually in Death Valley), and Alaska.    Showed a slight warming trend for these locations.  
(the misdirection here was to, again, make the point that warming occurs even where population is small.  As before, no mention of non-CO2 causes of warming, El Nino, droughts, etc.) 

Professor Monty Alger of Penn State called Tom to say he was fully behind the Climate Solutions initiative at AIChE.  Alger will be AIChE president for 2020. 
 (see  https://www.che.psu.edu/faculty/alger/ for a bio of Dr. Alger.  The incoming president of national AIChE is equally misguided on the bad science, BS, of man-made global warming.  However, as an academic, it is important for the national AIChE to support and assist the other academics who receive part of their grants and other funding from promoting man-made climate change.  It is obvious that more work for chemical engineers will occur in designing and building the various systems to capture CO2, remove some from the atmosphere.)

Tom said he was instrumental in getting AIChE to change their official stance on Global Warming with the 2019 statement on climate
(The previous statement on climate was essentially, "we don't take a position as the science is not settled," with the new, 2019 statement emphatically stating "Scientific analysis finds that non-natural climate change is occurring and has been strongly influenced by human-caused releases of greenhouse gases. . . . Adverse climate change poses threats to all of us, both individually and as a society. These threats fall squarely in the realm of the chemical engineer. . ."  It is certainly dismaying that so many in our society could be so badly fooled by the BS, the bad science.   What the current statement should say is "Some very bad scientific analysis finds that".... the causation should have mentioned the multiple known causes of warmer temperature, none of which are related to increased greenhouse gases.) 

Mentioned Hofmeister’s book “Why We Hate the Oil Companies.”  Former president, Shell Oil. 
(Not much to say here, having not read the book.  I suspect the theme is that oil companies have been hiding very bad facts for decades, have conspired to deceive the public and elected officials, the usual such things.   It is quite instructive that Shell is mentioned, as they are notorious for having lied to the Securities Exchange Commission about the extent of their oil reserves, and were fined for doing that.  Shell would do well in an era where oil is minimized in favor of natural gas consumption.  That appears to be a primary goal of those who espouse climate solutions. )

Said presenter Stephanie Thomas is a geologist.   Matthew Berg won best presentation award for SPTC in Sugar Land, 2019.
(I sat through both Thomas' and Berg's presentations at that conference.  Dr. Thomas is listed as having a PhD in Earth Sciences, not Geology.  Dr. Berg has a PhD in Hydrology.   I wrote on SLB on Dr. Thomas' presentation, see link.    I have not yet written an article on Dr. Berg's presentation, but it can be summarized as "flooding is getting worse, and global warming is the cause."  He claimed, with a straight face, that local temperatures are melting railroad rails.  Then, showed a slide of a distorted rail juncture.  I laughed at that one.)

Wants the world to be CO2-neutral by year 2030, and to do that we must make no more plastics.
(this one is quite incredible; I shook my head in disbelief.  The modern world depends far too much on plastics to stop production.  The disruption, increased costs, increased disease and illness, and increased energy consumption all are insurmountable factors that will make this one never happen.   For just a few examples, how will hospitals and medical practices function without plastic?  What will food packaging be made from, at what cost in product purity and increased discards, if not plastic?  What will sanitation piping be made from?  How will transportation vehicles maintain their current low weights (or mass) that allows excellent fuel economy?  This one is, to use the vernacular, a doozy.)

Renewables cannot do the job; 100 percent renewables is impossible.  Cited Austin, Texas as having grid stability problems at 20 percent renewables on the local grid.   Said that the local grid and amount of renewables is the critical issue.  
(on this minor point, we agree at least in part.  SLB has articles on the 100 Percent Renewables issue, I agree that the world will not likely ever be run entirely by renewables.   Where Rehm is wrong, though, is on the claim that 20 percent renewables causes instability on local grids.  The fact is that many locations in the US have much more than 20 percent renewable power that makes electricity.  The issue is not with the renewables, but with the flexibility of the other generating systems.  )

Mentioned the cost for renewables is prohibitively high, and the low capacity factor, 25 percent for solar and wind combined in Texas is a major obstacle
(this is a common talking point by the anti-renewables, pro-nuclear crowd.  The fact is, the renewable sources of wind and solar are very competitive in the areas where the wind is good and the solar energy is strong.  However, the economics of solar panels in high latitudes will continue to be very bad for many decades.  Solar does well, though, in sunny areas (not cloudy) in locations between 30 degrees north and south of the equator.  Wind is the most attractive generating source in many, many areas as thoroughly documented by the US Department of Energy and their annual Wind Technologies Market Reports.)

One solution is nuclear, with new designs as Professor Tsvetkov proposes.  Said nuclear has zero emissions,   New designs will not use water as the moderator.  
(Tsvetkov clarified that zero-emissions view in his earlier 2019 speech to AIChE, it is not true for the entire nuclear cycle.  see link to SLB article on Gen IV nuclear and Tsvetkov's presentation.  Gen IV nuclear plants are unproven, most have not been built, a few prototypes were abandoned as hopeless.  The increased safety and reduced costs claims are not true at all.  Nuclear is never the solution; it costs far too much and is far too dangerous. ) 

Favors a carbon tax as paramount importance
(A carbon tax, or tax on companies that produce CO2 in their operations, is favored by one segment and opposed by another.  Those in favor are typically oil and gas companies, the opposition are coal companies.  Burning coal produces much more CO2 per unit of energy released, typically 2 - 3 times as much as does burning natural gas.  So, a carbon tax is a perfect way to run coal companies out of business.  Is it any wonder that oil and gas companies favor that?  They get to sell more natural gas, usually as fuel to utilities.)  

Three steps to carbon neutrality: Mitigation, Adaptation, and Resiliency
The points on the slide for this statement included:
-Manufacturing Energy Efficiency - Mitigation
-Electricity Generation /Distribution  - Mitigation
-Transportation - Mitigation
-Urban Energy Efficiency - Mitigation
-Agricultural Practices - Mitigation
-Land Use Practices - Mitigation, Adaptation, Resiliency
-And, governmental policy solutions. 

(He did not discuss these points in detail, except for the next paragraph on Regenerative Agriculture.  My own experience over 40 years of engineering consulting and energy work as an employee in chemical manufacturing shows that none of the above are cost-effective, except for Transportation with electric battery-powered vehicles.  If one favors the Efficient Market Theory, radical changes must make any market more inefficient and thus more costly to operate.  The prospects of increased energy efficiency due to another world energy price shock, like the 1970s had, is virtually zero.  Oil is no longer subject to price increases, and in fact OPEC is in disarray and oil prices are decreasing.  There is a world-wide glut of natural gas, driving its prices down, and coal is on the decline except in a few isolated countries (India, China).  That leaves only a government-mandated carbon tax to force such decreased energy usage.  )

Favors Regenerative Agriculture – soil must increase carbon content to remove CO2 from the air. 
(with farming already a very slim profit endeavor, the costs to include carbon sequestration in soil must be subsidized to prevent bankruptcies.  This may be where the carbon tax comes in; a wealth transfer from CO2 producers to the farmers.  More on Regen Ag will be published shortly on SLB.  For now, it's just another scheme to transfer wealth and run the oil companies out of business.)

Electricity generation options he favors are nuclear and biomass.   Said nuclear has the best safety record of all types when calculated on fatalities per TWh/y produced.   
(I wonder if that includes the entire uranium mining and fuel preparation cycle, plant construction, generation, decommissioning, and spent fuel storage for centuries.  SLB has articles on the dubious safety record of nuclear power plants, see link to "Nuclear Radiation Injures People and Other Living Things,"  and link to "Near Misses on Meltdowns Occur Every 3 Weeks," and link to "US NRC Stops Study of Cancer Risks near Reactors."  As to biomass for power generation, there is too much power needed and not nearly enough biomass to burn.  These facts have been known for decades.  And, it gets worse.  No more biomass is produced each decade, but the power generation needed keeps increasing.)

(Next, Rehm really pushed nuclear, to end the talk) Nuclear is not presently used much due to unjustified public fear.    Said advanced nuclear plants are much safer 
("Unjustified fear" is a buzzword from nuclear proponents.  One must wonder how much fear was justified among the Russians, Europeans, and others when Chernobyl exploded and sent radiation around the planet?  How much fear was justified in Pennsylvania when Three Mile Island melted down and spewed radioactive steam into the skies?  Were the evacuated pregnant women supposed to remain calm, cool, and collected during those horrible few days?  How much fear was justified in Japan during and after the triple reactor meltdowns and explosions at Fukushima?   How much fear is justified among the entire population, now that nuclear plants are being built in third-world countries with earthquakes and other serious threats to the plants' integrity?   How much fear is justified now that cyber-security is a serious threat?  As to advanced nuclear plants being much safer, how could he possibly know?   None have been built except for a few tiny proof-of-concept plants.  SLB has articles on the safety of new nuclear designs, see link to "Thorium MSR No Better Than Uranium Process,"  and link to "High Temperature Gas Reactor Still A Dream" )

Advanced nuclear will recycle existing spent fuel and generate power from the recycled material, reducing toxic radioactive waste by a large amount. 
(Why bother?  Fuel is not the expensive part of running a nuclear plant.  Safety is not improved, either, as a previous article on SLB shows, see link to "Reprocessing Spent Fuel Is Not Safe."  )

Said SMR, small modular reactors, are the answer since they will be very low-cost to build in factories.  
(This is one of the same points made by Tsvetkov in his Gen IV speech to AIChE, and the same rebuttal applies: any cost reduction due to volume production requires millions of units, not hundreds as SMR would have.  Economy of scale overwhelms any production cost reductions.  NB, the wind energy business for WTG (wind turbine generators) has the same issue for blade manufacturing.  The US industry builds and installs approximately 8 GW per year, at an average of 2.4 MW per WTG, thus the average number of WTG installed was 3,333.  Number of blades made was 10,000 for 2018.  Even that 10,000 items does not give low cost, so the industry strives for cost reductions via economy of scale with ever-larger WTG per unit.  Offshore, size went from 2 to 4 to 8 and now 12 MW.   Onshore, size from 1 to 3 and now 5 MW per WTG.  See link to SLB article on SMR and all the many drawbacks, "No Benefits From Smaller Modular Nuclear Plants." )

End of speech.  

In the Q&A portion, I asked this Question:  how much will electricity prices increase if the proposed solutions are implemented?  He admitted it will be a big increase but did not give a number. 

The transition period will require decades, Shell says 50 years, he stated BP and ExxonMobil have similar time frames.  
(how does this square with the earlier statement of carbon-neutral by 2030?  That’s only 11 years away)

Q:  how will SMR reduce costs, when economy of scale is the major factor in nuclear plant costs?  He had no answer for that, either.  

Q:  On USCRN slides that showed a warming, how much of the measured warming was due to CO2 increase, and how much to other factors like cleaner air – he mentioned pollution laws cleaned the air around 1980 and temperatures immediately increased in those locations.   His response was to show a graph purporting to show IR gap in Earth’s radiated energy out to space, with CO2 responsible for the gap.   My rebuttal was, the gap is also exactly where water vapor H2O absorbs, so how do they know it is due to 300 – 400 ppm of CO2, and not due to several percent of water vapor? 

Conclusion

The points made in this speech are typical of the misinformation and Bad Science (BS) of many in the climate alarmism camp.   So much of what they know, just isn't so. (a quote from Ronald Reagan).   The good news is, almost none of this is ever going to happen.  Plastics are here to stay.  Nuclear plants are a dying breed, and the sober review process and high standards at the NRC will prohibit the approval of the Gen IV reactors.   Economics alone will kill off any other reactor designs, such as the NuScale small modular reactor system that is presently undergoing safety review at the NRC.  Low-price wind electricity and natural gas power have doomed nuclear power, which is a very good thing.   Wind energy is a booming business, and is here to stay.  Solar is also booming in those areas of the world, as stated above, not far from the Equator where the sunshine is strong.   The AIChE will likely see the Climate Solutions division, or initiative, whatever it is called, wither away in just a few short years.  

This website will have articles and updates on that, as they occur. 


Roger E. Sowell
Houston, Texas
copyright (c) 2019 by Roger Sowell - all rights reserved




Topics and general links:

Nuclear Power Plants.......here
Climate Change................herehere,  and here
Fresh Water......................here
Engineering......................here  and here
Free Speech.................... here
Renewable Energy...........here  


Tuesday, October 8, 2019

More BS - Bad Science at SPTC in Sugar Land TX October 2019

Subtitle:  Consensus Conclusions are Wrong; Even When Repeated Over and Over

This article discusses the main points and my comments on the presentation made by Stephanie Thomas, PhD(1)  at the AIChE Southwest Process Technology Conference, Climate Solutions Session in Oct, 2019,  Sugar Land, Texas.  Dr. Thomas' presentation title is "Evidence of Climate Change; an Overview of the Science."   (see link to another SLB article on the presentation on Climate and Energy by 2070, made by a Shell executive at the Tuesday night dinner meeting at the same conference. )

(1) PhD Earth Sciences, listed as a community organizer at Public Citizen, a NGO.  Lead article at present (10-9-2019) on the Public Citizen website is "Impeach Donald Trump"

(my comments below the main points are in parentheses)

1. Overview  -  “Multiple Lines of Evidence”  - she attributed these four slogans to Professor Mark Holtzapple of Texas A&M University. 
   a. It’s Warming 
   b. It’s Bad
   c. It’s Us
   d. We Can Fix It
(this is very sophomoric sloganeering; a conference of chemical engineers certainly deserves a presentation at a much higher level.  But, sloganeering is typical of the Bad Science proponents, perhaps they don't want anyone to actually investigate the data, the analyses methods, and the computer simulation models.)

2. Showed the GATA Chart, Global Average Temperature Anomaly, from 1880 - 2016.  
(this is the same chart that clearly shows decreasing temperatures, a region of no change at all for 35 years, then two separated periods with similar increasing trends, one before 1945 and a similar one before 2015.   Meanwhile, CO2 was steadily increasing in each year)

3. Showed a few false causes of the warming trend – discarded each due to inadequate correlation
   a. Sun’s energy output
   b. Volcanoes
   c. Ice ages due to Earth Orbit variation (presumably the warming that ended the last glacial period 14,000 years ago was due to orbital changes accelerated by volcanic ash and dark particles on the ice surface)

4. Then showed a strong correlation between GHGs and Temperature  
(ignored the 800 year lag between temperature change and CO2 change)

5. Weakened her case by saying a correlation exists between temperature rise with
   a. Aerosols
   b. Ozone
   c. Land Use
(actually, aerosols increased during the temperature decline 1945-1975)

6. Venus surface temperature – claimed it is very hot due to CO2 in the atmosphere 
(wrong, Venus is very hot due to the very dense and thick atmosphere that is many miles deep.  Earth has a few miles deep.   See NASA for corroboration.  The adiabatic lapse rate requires the surface to be very hot.  ) 

7. Said CO2 is higher today than past 800,000 years as shown by Greenland and Antarctic ice cores, varied from 180 to 280 ppm in the ice cores.  
(How, then, were the previous inter-glacial periods hotter than this one?  Approximately 8 degrees C warmer.  The CO2 was never more than 280 ppm, yet the BS claims the climate was much hotter)

8. Showed chart of temp varies with CO2 
(wrong, Temperature changes occur 800 years before CO2 changes. Implies that warmer oceans release CO2 into the atmosphere, and cooler oceans absorb CO2 from the atmosphere.)

9. Energy use in total has increased over time, said this is the source of CO2 in atmosphere.  
(Energy use is also the source of soot, particulate matter, smoke, jet exhaust, fly ash)

10. Claimed researchers since 1800s reported GHG effects 
(This is immaterial, what matters is the magnitude of the impact; CO2 has a numerically insignificant impact)

11. Claimed a prediction made in 1950 was accurate, for 1 deg C increase by year 2000, with 30 percent increase in CO2.   
(approx. 300 ppm to 370 ppm, what happened was about 0.8 deg C increase)

12. Mentioned Gore’s movie as good evidence  
(wrong, the movie has multiple false statements as clearly documented in many sources)

13. Said oil companies now have statements that climate change is due to CO2 
(only because of shareholder pressure and a desire to avoid defending costly lawsuits)

14. Ocean alkalinity is decreasing, says this is a big problem for crustaceans  (somehow, they did not go extinct during the previous warm-ocean periods)

15. Ocean Temperature is increasing, says this harms coral reefs 
(here we go again, how did coral reefs survive the last several times Temperature was much hotter than today?)

16. Said extreme weather is increasing, example is Austin TX had the hottest September on record 
(no mention of drought, no rain, and very little wind in September 2019 in Austin.  No mention of the late Spring this year, late crop planting, and early cold weather that is threatening the crops and yields)

17. Said Arctic is heating, ice is melting, Arctic ocean absorbs more heat from Sun 
(BS, bad science, the Arctic is at such a low angle to the Sun, very little heat is absorbed due to reflection off the water; instead, open water radiates heat much faster than does ice; ice acts like a blanket and keeps heat in the water; ice at Summer minimum has stabilized since 2006 – that’s 13 years now)

18. Glaciers are receding 
(BS, same rate today as in 1850; more dark soot and ash fall on the ice from the air due to man’s coal-burning and jet aircraft exhaust, and large forest fires due to bad management)

19. More torrential rain due to GHGs, said Houston has record flooding over past 5 years.   
(Wrong causation, the intense storms were due to stationary cold fronts that prevented the hurricanes from moving inland quickly; intense flooding was from bad infrastructure management, and increased building with impervious ground cover e.g. foundations, roads) 

20. Sea level rise has an increasing rate, due to warmer water and more ice melted and flowed into oceans  
(false, only after splicing together buoy data with satellite data.  Buoy data shows no increase in rate of SLR)

21. More deaths due to disease that was caused by GHG.  
(Flat out wrong).

End of S. Thomas presentation. 

(No mention of:

   a. El Nino / La Nina  warming effects
   b. Timing and duration of droughts – causes warming trend
   c. Increased humidity from power plants, cooling towers, lawn watering, crop irrigation in deserts, etc
   d. Cleaner air due to air pollution laws  - removes aerosols and lets more Sunshine in
   e. Less cloud cover due to fewer sunspots from 1950 – 2009
   f. Arctic ice extent stabilized for past 13 years -  2006 – 2019
   g. Antarctic ice has grown for decades
   h. Coral reefs damaged by ships and humans with suntan lotion, antifreeze, copper paint on ship bottoms, human waste dumped overboard
   i. Polar bears populations are increasing  - they survived at least 500,00 years of ice ages and interglacials much warmer than today
   j. Zero correlation between severe weather and increased CO2 (IPCC said this)
   k. Floods more severe due to increased runoff from land use changes – more impervious cover, more siltation blockage in flow channels, more infrastructure blocking natural flow areas e.g. highways such as Houston’s Beltway   Houston Harvey flooding was made worse by bad decisions by government to not maintain flood control dams at Barker, Addicks
   l. Hurricanes' ACE has not increased since 1970)
.

Conclusion

Sadly, this presentation is quite typical of the misinformation, disinformation, and glossing over of key points that completely refute the alarmists' basic message.  


Roger E. Sowell
Houston, Texas
copyright (c) 2019 by Roger Sowell - all rights reserved



Topics and general links:

Nuclear Power Plants.......here
Climate Change................herehere,  and here
Fresh Water......................here
Engineering......................here  and here
Free Speech.................... here
Renewable Energy...........here  



Thursday, October 3, 2019

Shell Presentation on Climate and Energy by 2070

Subtitle: Hydrogen and Ammonia - Both Are Disasters

A Vice-president and Chief Scientist-Chemical Engineering, from Shell made a speech on Tuesday evening, October 1, 2019 in Sugar Land, Texas, at which I am glad I attended and took a few notes.   Dr. Joseph Powell, PhD in Chemical Engineering, was the speaker.  The event was the
combined AIChE South Texas Section and Southwest Process Technology Conference dinner meeting at the Marriott Hotel conference center.   

Dr. Powell spoke on the need for changing the world's energy system to a carbon neutral basis to avoid catastrophic climate change.  His proposed solutions covered a range of paths, but most notably using water, or methane, CH4, to create either 1) a hydrogen energy system, or 2) an ammonia, NH3, energy system.   Solar and wind renewable energy systems were to play a big part in the basic energy input, with hydrogen or ammonia as the energy carriers.   The time-frame was a transition period of 50 years, and carbon neutrality achieved by the year 2070.   With a veiled swipe at the Green New Deal proposal, he mentioned that changing the world's huge energy infrastructure could not be done in a short period, but would require several decades.   I agree with that last statement based on my 40 years experience in the industry, the sheer size and scope of the energy infrastructure would require decades to transform. 

The presentation, as he said, was based on the Shell Sky Scenarios developed and published by Shell over the past few decades.  ( see link to Shell Sky Scenarios.)

I cringed when I heard this presentation, and more than once.   This article describes what I believe I heard, and why such things caused me to shake my head in total dismay.   In short, hydrogen is incredibly dangerous and should never be placed in general, widespread use due to the inevitable fires, explosions, and human deaths.   Ammonia is equally toxic.    The economic impact of a radical transition to hydrogen would be catastrophic to 90 percent of the world's population.  

Dr. Powell began with a brief introduction of his experience, with a BS in chemical engineering in 1978, when the US had gasoline shortages such that gasoline sales were allowed only on alternate days.   A car owner could buy gas based on the last digit of the license plate, odd numbers on odd-numbered days, and even numbers on the even-numbered days.  I recall those days vividly, as my BS in chemical engineering was awarded just one year earlier, in 1977.   

Dr. Powell obtained his PhD in chemical engineering a few years later (1984), and worked in various assignments at Shell for the past 30 years.  Part of that appears to be looking far into the future, and evaluating various processes to meet energy demands.  It is instructive, although he made no mention of this, that Shell's energy reserves are natural gas, to a significant extent.   Shell has notably failed to discover significant oil reserves, however.   So, it makes sense that Shell's Sky Scenarios would focus on processes that convert natural gas to usable transportation fuels.   He did mention at one point Shell's gas-to-diesel process plant, PERL, in Qatar.   The PERL plant takes an otherwise worthless natural gas pocket located deep in the Middle East, and produces diesel fuel that can be transported by ship or pipeline.  

Dr. Powell also mentioned that, in 1978, the world's climate scientists sounded the alarm over imminent global cooling.   That, too, is a vivid memory, since the bitterly cold winters of 1977, 1978, and 1979 were at the end of a 35-year cooling trend (since 1945).  (SLB has several articles on the Abilene Effect, and the unprecedented consecutive 3 years  of abnormally cold winters   see link.)  The climate scientists were very wrong then, as almost everyone knows by now.   

One can only wonder why those climate scientists are to be believed now, when they were so spectacularly wrong in 1980 about global cooling and an imminent ice age.  Few of the same scientists are alive today, but the discipline has quite a few people sounding an equally shrill alarm over global warming. 

The final bit of introductory material discussed the opinion polls, which he said showed a large minority (I think 30-40 percent?) believe that climate change is real and is a crisis.  Another minority view (perhaps another 40 percent?) held no position for or against, and a small minority hold the view that there is zero cause for alarm.    He said that the opinion of stakeholders led Shell to develop the future scenarios.    That was not shareholders he mentioned, but stakeholders.   He did not define exactly who he meant by stakeholders. 

As an aside, oil companies such as Shell, BP, Chevron, and ExxonMobil (collectively known as Big Oil), and the national oil companies from many nations, have been the targets of many organizations for many decades.    I have met many of the Big Oil opponents, and found that they fervently believe in things like the car with a 200 mile-per-gallon carburetor, magic portable batteries that let an affordable car run for 1000 miles on one charge, and recharge in 5 minutes, solar panels that work around the clock, and wind turbines that produce free electricity.   Many of these same people advocate vigorously for nuclear power plants, even the tiny ones that would be buried in a vault in every neighborhood to produce electricity for very near free, just a small metering charge.   To paraphrase Ronald Reagan, "It's not that (these people) don't know anything, but what they know just isn't so."

The reality is, yes, some cars obtain 200 miles per gallon.  Much more than that, in fact.  But, they can never be sold in commercial use because they will never meet the automotive safety standards.   Those are highly specialized "cars" with very little weight, tiny engines, very high-pressure or solid tires, and run at slow speed on an incredibly smooth surface.   We now do have batteries that would allow 1000 miles range, but the cost is still very high.  Recharging in a short time is possible, but will be very expensive.   Solar panels of course would not work around the clock, unless they are in orbit.   Wind turbines are getting better, but 3 cents per kWh for the electricity is about the best we have at this time.  

Returning to Dr. Powell's presentation, he described several process paths for a carbon-neutral energy system by the year 2070.  They were, as best I can recall, gas to methanol, gas to hydrogen via carbon black process, water to hydrogen via electrolysis, gas to hydrogen via steam-methane-reforming with CO2 capture, and natural gas to ammonia. 

The hydrogen would be transported to the end user, where cars with fuel cells would fill up and drive away for their normal use.   He mentioned one detailed study that Shell performed, with solar panels in north Texas providing energy to produce hydrogen that would be sent to New York City for use in fuel-cell vehicles.   It was not clear to me if the solar panels would make electricity for water electrolysis (produces hydrogen), or supply electricity for hydrogen production via the carbon black process.   He did mention that excess carbon black could be permanently stored in abandoned coal mines.   As an aside, that does not seem sustainable to me, since there are such a limited number of abandoned coal mines in the world.   If we truly are about to run out of oil (and gas), surely we are equally certain to run out of space in the coal mines.  

The mix of energy providers in year 2070 also seems very implausible, with nuclear power almost quadrupling from today, solar PV providing a bit more than 30 percent of all energy, and wind providing a bit more than 10 percent of all energy.   

Nuclear power is going to shrink, and fall to almost zero within 20 years as it is completely lost in the competitive market, not to mention the growing awareness of the dangers of meltdown disasters.  (Update 10/4/2019:  Shell's proposal would have 1,800 nuclear power plants built between year 2020 and 2070, with one large 1,000 MWe output plant started up every 10 days for the next 50 years.   Clearly, that is never going to happen.  see link for SLB articles on the many insurmountable disadvantages of nuclear power  - end update) 

Solar has a distinct disadvantage compared to wind, because even in the best locations, solar can only produce at approximately 25 percent of the installed capacity.   The Sun's path across the sky dictates this outcome.  However, wind does not care where the Sun is, and wind turbine generators are already producing at an annual rate of 50 percent (some at 60 percent) of nameplate capacity.  The result of this is that any storage system for solar must be at least twice as large, require more capital to install, and have more losses on charging and discharging.  Solar PV will never, ever, win out over wind on a global basis.   

For some illustrative numbers, a 4,000 MW solar power plant that produces at 25 percent of nameplate would produce only 24,000 MWh in a 24 hour period.  But, for the 6 hours per day that it does operate, and using 100 percent output as a simplification, the plant would send one-fourth of the output to the grid (6,000 MWh), and three-fourths (18,000 MWh) to a storage system (presumably batteries).  The storage system would then discharge for 18 hours each day, returning approximately 80 percent of the stored electricity back to the grid.  

Wind turbines that operate at 60 percent of nameplate would have a similar analysis, 1,667 MW at 60 percent gives 24,000 MWh in a 24 hour period.   Only 40 percent need be stored, with 9,600 MWh stored.  

Conclusion

Shell's Sky Scenario is entirely implausible for many reasons, and is extremely unsafe due to the reliance on hydrogen as an energy carrier.  The system is also woefully too costly, with reliance on very expensive nuclear plants, and solar PV systems with twice the storage requirements compared to wind turbine generators.  

There is zero need to reduce any CO2 emissions in any event, since any measured  warming in the past 100 years is almost entirely due to natural forces, increased human population growth, and increased energy consumption.  Natural droughts since 1960, El Nino events since 1960, urban heat effect from more dense cities, increased fuel and electricity per capita, decreased cloud cover due to more sunspots, and cleaner air with fewer aerosols due to air pollution laws, all are responsible for "global warming."  But, CO2 is innocent.  (see link to SLB article on A Skeptic's View of Climate Science - It's BS)


Roger E. Sowell
Houston, Texas
copyright (c) 2019 by Roger Sowell - all rights reserved



Topics and general links:

Nuclear Power Plants.......here
Climate Change................here, here,  and here
Fresh Water......................here
Engineering......................here  and here
Free Speech.................... here
Renewable Energy...........here