Category Archives: Energy policy

Why a Great Reset Based on Green Energy Isn’t Possible

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It seems like a reset of an economy should work like a reset of your computer: Turn it off and turn it back on again; most problems should be fixed. However, it doesn’t really work that way. Let’s look at a few of the misunderstandings that lead people to believe that the world economy can move to a Green Energy future.

[1] The economy isn’t really like a computer that can be switched on and off; it is more comparable to a human body that is dead, once it is switched off.

A computer is something that is made by humans. There is a beginning and an end to the process of making it. The computer works because energy in the form of electrical current flows through it. We can turn the electricity off and back on again. Somehow, almost like magic, software issues are resolved, and the system works better after the reset than before.

Even though the economy looks like something made by humans, it really is extremely different. In physics terms, it is a “dissipative structure.” It is able to “grow” only because of energy consumption, such as oil to power trucks and electricity to power machines. Continue reading →

Economies won’t be able to recover after shutdowns

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Citizens seem to be clamoring for shutdowns to prevent the spread of COVID-19. There is one major difficulty, however. Once an economy has been shut down, it is extremely difficult for the economy to recover back to the level it had reached previously. In fact, the longer the shutdown lasts, the more critical the problem is likely to be. China can shut down its economy for two weeks over the Chinese New Year, each year, without much damage. But, if the outage is longer and more widespread, damaging effects are likely.

A major reason why economies around the world will have difficulty restarting is because the world economy was in very poor shape before COVID-19 hit; shutting down major parts of the economy for a time leads to even more people with low wages or without any job. It will be very difficult and time-consuming to replace the failed businesses that provided these jobs.

When an outbreak of COVID-19 hit, epidemiologists recommended social distancing approaches that seemed to be helpful back in 1918-1919. The issue, however, is that the world economy has changed. Social distancing rules have a much more adverse impact on today’s economy than on the economy of 100 years ago.

Governments that wanted to push back found themselves up against a wall of citizen expectations. A common belief, even among economists, was that any shutdown would be short, and the recovery would be V-shaped. False information (really propaganda) published by China tended to reinforce the expectation that shutdowns could truly be helpful. But if we look at the real situation, Chinese workers are finding themselves newly laid off as they attempt to return to work. This is leading to protests in the Hubei area.

My analysis indicates that now, in 2020, the world economy cannot withstand long shutdowns. One very serious problem is the fact that the prices of many commodities (including oil, copper and lithium) will fall far too low for producers, leading to disruption in supplies. Broken supply chains can be expected to lead to the loss of many products previously available. Ultimately, the world economy may be headed for collapse.

In this post, I explain some of the reasons for my concerns. Continue reading →

Do the World’s Energy Policies Make Sense?

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The world today has a myriad of energy policies. One of them seems to be to encourage renewables, especially wind and solar. Another seems to be to encourage electric cars. A third seems to be to try to move away from fossil fuels. Countries in Europe and elsewhere have been trying carbon taxes. There are also programs to buy carbon offsets for energy uses such as air travel.

Maybe it is time to step back and take a look. Where are we now? Where are we really headed? Have the policies implemented since the Kyoto Protocol in 1997 had any positive impact?

Let’s look at some of the issues involved.

[1] We have had very little success in reducing CO2 emissions.

CO2 emissions for all countries, in total, have been spiraling upward, year after year.

World CO2 Emissions

Figure 1. Carbon dioxide emissions for the world, based on BP’s 2019 Statistical Review of World Energy.

If we look at the situation by part of the world, we see an even more concerning pattern.

Figure 2. Carbon dioxide emissions by part of the world through 2018, based on BP’s 2019 Statistical Review of World Energy. Soviet Empire is an approximation including Eastern Europe and the Former Soviet Union, based on the BP report. It would not include Cuba and North Korea.

The group US+EU+Japan has been able to reduce its CO2 emissions by 5% since 2005. Emissions were slowly rising between 1981 and 2005. There was a dip at the time of the Great Recession of 2008-2009, followed by a downward trend. A person might get the impression that CO2 emissions for the EU tend to rise during periods when the economy is doing well and tend to fall when it is doing poorly.

Continue reading →

How Renewable Energy Models Can Produce Misleading Indications

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The energy needs of the world’s economy seem to be easy to model. Energy consumption is measured in a variety of different ways including kilowatt hours, barrels of oil equivalent, British thermal units, kilocalories and joules. Two types of energy are equivalent if they produce the same number of units of energy, right?

For example, xkcd’s modeler Randall Munroe explains the benefit of renewable energy in the video below. He tells us that based on his model, solar, if scaled up to ridiculous levels, can provide enough renewable energy for ourselves and a half-dozen of our neighbors. Wind, if scaled up to absurd levels, can provide enough renewable energy for ourselves and a dozen of our neighbors.

There is a major catch to this analysis, however. The kinds of energy produced by wind and solar are not the kinds of energy that the economy needs. Wind and solar produce intermittent electricity available only at specific times and places. What the world economy needs is a variety of different energy types that match the energy requirements of the many devices in place in the world today. This energy needs to be transported to the right place and saved for the right time of day and the right time of year. There may even be a need to store this energy from year to year, because of possible droughts.

I think of the situation as being analogous to researchers deciding that it would be helpful or more efficient if humans could change their diets to 100% grass in the next 20 years. Grass is a form of energy product, but it is not the energy product that humans normally consume. It doesn’t seem to be toxic to humans in small quantities. It seems to grow quite well. Switching to the use of grass for food would seem to be beneficial from a CO2 perspective. The fact that humans have not evolved to eat grass is similar to the fact that the manufacturing and transport sectors of today’s economy have not developed around the use of intermittent electricity from wind and solar.

Continue reading →

Rethinking Renewable Mandates

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Powering the world’s economy with wind, water and solar, and perhaps a little wood sounds like a good idea until a person looks at the details. The economy can use small amounts of wind, water and solar, but adding these types of energy in large quantities is not necessarily beneficial to the system.

While a change to renewables may, in theory, help save world ecosystems, it will also tend to make the electric grid increasingly unstable. To prevent grid failure, electrical systems will need to pay substantial subsidies to fossil fuel and nuclear electricity providers that can offer backup generation when intermittent generation is not available. Modelers have tended to overlook these difficulties. As a result, the models they provide offer an unrealistically favorable view of the benefit (energy payback) of wind and solar.

If the approach of mandating wind, water, and solar were carried far enough, it might have the unfortunate effect of saving the world’s ecosystem by wiping out most of the people living within the ecosystem. It is almost certain that this was not the intended impact when legislators initially passed the mandates.

[1] History suggests that in the past, wind and water never provided a very large percentage of total energy supply.

Figure 1. Annual energy consumption per person (megajoules) in England and Wales 1561-70 to 1850-9 and in Italy 1861-70. Figure by Tony Wrigley, Cambridge University.

Figure 1 shows that before and during the Industrial Revolution, wind and water energy provided 1% to 3% of total energy consumption.

Continue reading →