A Presidential Campaign Speech from 2052

(Note to my readers: please allow me this ‘indulgence’ as it allows me to discuss what I see coming in the energy field.)

My fellow Americans, I am pleased to announce today my candidacy for President of the United State. We have just turned the corner on the first half of the 21st century, a time of significant change for our country and many other countries. In 2052 it is time to consolidate and reaffirm those changes that are beneficial, and plan for the coming decades. The 21st century has been an American century, but not exclusively – other parts of the world have demonstrated global leadership both economically and politically in these past 50 years – and it is encumbent on a new set of U.S. leaders to continue the American century in peaceful and meaningful cooperation with our global partners. Before discussing my plans for the future I would like to review what I see as the history and the accomplishments of the century’s first fifty years.

The century began as an extension of the 20th century – multiple national conflicts, internal dissension in many countries, and heavy dependence on traditional fuels such as coal, oil and natural gas. Global population continued to increase – having grown from 1.8 billion to more than 6 billion in the past century – and is expected to reach as much as 10 billion sometime before the turn of the current century. That number in 2052 is just under eight billion.

Increasing electrification was an important characteristic of the 20th century and will continue to define the 21st century as well. It is allowing increasing numbers of people to enjoy the energy services that access to electricity and other forms of energy brings – lighting, heating, cooling, communication, transportation, and the ability to make things quickly and in quantity. Today, fewer than five percent of the world’s population lacks access to reliable electricity supplies, and this number should reach zero in the next two decades. Essentially all have access to wireless devices that allow widespread communication and access to the world’s store of information.

This access to energy, the closely related access to clean water, and wireless capability have significantly reduced global poverty and greatly enhanced opportunities for learning. The education revolution that has been made possible by universal access to the internet, for both women and men, and the individualized learning that the computer revolution has made possible, together with energy access, has finally allowed a slowdown in the rate of population growth so that a stabilized global population may be achievable in my lifetime.

This century has also seen other powerful changes. In 2008 our country elected its first black President, and then reelected him in 2012 as affirmation of their good judgement four years before. In 2016 the U.S., after a lengthy and often nasty presidential campaign, elected its first female president, who once and for all showed that women can serve effectively at the highest levels of our political life. Together with the military opening all its ranks to female participation in 2015, the so-called ‘glass ceiling’ was finally shattered, never to be restored. That election also saw the election of a Vice President of Hispanic ethnicity, who eventually went on to become the 47th President of the United States. Today I am trying to shatter still another political barrier by attempting to become the first Muslim American to receive the nomination for President of a major political party.

While much has changed in the past five decades, and I will discuss one of the most important changes in detail shortly, not everything has changed, unfortunately. We are still human beings, with all our many shortcomings, and religious and racial intolerance are still major sources of pain and conflict in the modern world. While the threat of Islamic jihadism that arose forcefully in the first few decades of the century has been reduced significantly through the actions of a global coalition of Muslim and non-Muslim governments, remnants are still with us and require careful attention. As our President I would commit all the resources needed, in cooperation with our allies, to keep this threat under control. A major factor in controlling this threat has been the willingness of Sunni and Shiite governments to put aside their religious differences In the name of their overriding commonality, Islam.

Among the other changes we have seen in our lifetime is the establishment of the first human colonies on the moon and on Mars. The moon colony was a joint U.S.-Chinese achievement in 2032, just twenty years ago, and the first Mars colony of four people was established just 8 years ago, in 2044. Both were extraordinary events at the time, and commanded global attention, but as is true of so many achievements in outer space the existence of the colonies is becoming part of the background. That is an OK result as we want space travel to become a routine part of the mainstream.

Other major steps forward have been in the field of medicine. With advances in DNA measurement and manipulation personalized treatment has become routine for many gene-related diseases. It is not unusual today to see people living into their second centuries and still functioning normally. Of course the social security and related safety-net systems in the U.S. have had to be adjusted for this new longevity, and as you might expect, only after long and difficult political battles.

Finally, let me talk in some detail about the most important revolution of the 21st century, one I have worked hard to support in my current position as a U.S. Senator. It is one that I am committed to support and advance if I am privileged to serve as your President. That is the energy revolution that started in the latter part of the 20th century, took flight during the early decades of the 21st, and is today reaching all parts of the globe. It is a transition point in human history.

The 1973-74 Oil Embargo, which took place almost a century ago, was a brutal wake up call for many nations, including our own. The history books tell many stories about how Americans, for the first time, began to look at energy issues in a different light. Prior to the Embargo energy costs were sufficiently low that it was not an area of public concern. Then, one day Americans awakened to the fact that much of their energy, especially for transportation, was imported from abroad, and that such supplies were subject to political uncertainties beyond our control. This was true in the countries of Western Europe as well. We responded by creating the International Energy Agency, a mechanism for sharing oil reserves among countries if another embargo threatened our energy supplies. We also started looking at energy alternatives, with particular emphasis on nuclear power. In fact the public mantra at that time by our political leaders was a doubling every decade of the number of nuclear power plants deployed in the U.S. A few others raised concerns about nuclear power and called for examination of enhanced energy efficiency and renewable energy alternatives. Until that time renewable energy had not been seriously considered except in the case of hydroelectricity. The suggestion related to enhanced energy efficiency was dismissed by economists and others who saw economic growth (GDP) tied one-to-one with energy consumption, and renewables were attacked as too expensive and incapable of meeting the demands of the U.S. economy. These arguments persisted for several decades until it was shown that GDP and energy consumption were not directly linked, climate change associated with combustion of fossil fuels became a major global issue, the costs of renewable energy systems began to decrease, and the ability of renewable energy in the form of electricity, biofuels, and heat were shown capable of supporting large economies. These new realities became the focus of policy debates in the first two decades of the century, and finally came to govern U.S. energy policy in the third decade when the majority of the private sector finally put its full support behind renewables and the battle to limit global warming. All Presidents since the Obama era have supported a move away from dependence on fossil fuels – it was 80% at the turn of the century – and Congress finally placed a steadily increasing cost on carbon emissions in 2020. This created the economic environment needed for investment in clean energy technologies and reduced use of fossil fuels. It allowed the U.S. to finally catch up with the many other countries that had seen the importance of these changes and implemented appropriate policies many years before.

These changes have led to today’s energy situation in the U.S. – 70% of electricity is generated by solar, wind, hydropower, and geothermal, natural gas from fracking peaked in 2040 and is steadily being replaced as an energy source in power plants as renewables take over, petroleum from fracking of oil shale peaked at about the same time and has been used to power aging and disappearing transportation fleets, electric vehicles dominate the automobile and light duty truck markets, all new aircraft and ships are designed to run on alternative biofuels, energy efficiency has been enshrined as the cornerstone of national energy policy, coal has been replaced as a domestic energy source except in a few industries, and nuclear power’s share of electricity generation has been steadily reduced to its current value of 5%. Total national energy demand has been stable even as the U.S. population has increased to 400 million, all new homes are routinely outfitted with solar energy rooftop systems and ground source heart pumps wherever feasible, the U.S. leads the world in wind turbine and wind energy production, we are second only to China in offshore wind energy deployment and production, and battery energy storage has become as ubiquitous as any other household appliance.

The world has turned a corner in these pat 50 years, undergoing an inevitable transition to dependence on energy from the sun and heat derived from radioactive decay in the core of the earth. These clean energy sources will last as long as people populate the earth, unlike fossil fuels which are depletable on any timescale relevant to humankind. We owe much to our fossil fuel resources, the product of millions of years of transformation of organic materials subject to high temperatures and extreme pressures deep in the earth, but the fossil fuel era is coming to an end and will eventually be only a blip on the timeline of history.

My promise to you as your President will be to continue and strengthen this transition in all ways possible so that our children, grandchildren, and their heirs, will live in a world free of global warming and the other harmful impacts of burning fossil fuels. Nuclear fission power had its day as well, but the issues associated with its use – cost, safety, long term storage of wastes, and weapons proliferation – have proved too difficult to accept now that renewable energy has been shown up to the task of meeting societal needs. Nuclear fusion, a much cleaner form of nuclear energy, remains as a long term possibility as well, but progress in taming the process that powers our sun and other stars has been slow and time will tell if controlled nuclear fusion has a future here on earth. I support continued cooperation with other countries in researching this technology that offers unlimited energy availability but so far has always been a few years away. Our investments largely must go into renewable technologies to ensure completion of the transition. This is our legacy to the future.

Report of an Interview – Republished From the ECOreport

The attached piece, written by Roy Hales and first published in the ECOreport on February 3, 2015 (www.theECOreport.com) was based on a voice interview he held with me on January 31st. It came about when Roy asked me if I would be willing to comment on the recent report issued by DOE’s Energy Information Administration (EIA) that presented figures on new electrical generating capacity installed in the U.S. in 2014. I agreed to do so and the interview (to be radio broadcast) and the attached article are the results. The article is republished with Roy’s permission and speaks for itself.
(Note: the photos published with the original piece did not reproduce in this republished copy and can be found at the web site referenced above.)

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RENEWABLES
THE GROWTH OF US RENEWABLES DURING 2014 AS A VINDICATION
FEBRUARY 3, 2015 ROY L HALES
By Roy L Hales

It has been 37 years since Dr Allan Hoffman gave President Jimmy Carter the plan that could have started America’s renewable revolution. The idea was shelved after Reagan was elected. Hoffman waited, as administration after administration ignored the potential, until Barack Obama was elected. The retired senior Department of Energy executive views the growth of US renewables during 2014 as a vindication of what he and his colleagues saw decades ago.

More Than Half Of The New Capacity

(Note: Clean Technica estimates that 54.8% of the installations made in December came from these two sectors and 53.3% of the installations for the year.)

“If the Clean Technica chart (which includes an estimate for non-utility solar) is accurate, more than half of the new capacity added last year is from renewables. This is very significant. I pinch myself when I see these numbers and I am very grateful to see the transition move to the extent it has,” said Hoffman.

Though natural gas was still the leading single energy source, in terms of installations during 2014, its 7.5 GW of added capacity is overshadowed by close to 10 GW from the renewable sector.

Natural Gas Will Be With Us For Decades

Photo Credit: US Electricity Capacity Added in 2014 by Clean Techncia
“There is no doubt that natural gas will be with us for decades, but I don’t see it as a long term option,” said Hoffman. “Right now it is exciting. We will probably use more natural gas in transportation. It is perfectly suited for that, if you build the right kind of car, but I think electrification is the answer for most forms of transportation in the future.”

He used the automotive sector to illustrate what is happening with fossil fuels. The trend is to electrification, but EVs are not yet ready to take over. Around 70% of car trips, in the US, are less than 40 miles. EVs can supply this, but there is still a need for a gas or diesel back-up on longer trips.

“There are a lot of vested interests protecting fossil fuel use. You are going to see a determined battle from the petroleum industry, who want to continue their role in transportation. That doesn’t change overnight. Cars are on the road for an average of 10 to 12 years in the United States. They need petroleum, so that’s going to be with us for a while,” said Hoffman. “But I don’t think the fossil fuel industry can win this battle over the long term and the smart companies will be switching over eventually.”

He added, “We will still have fossil fuels in 2050, but it will be a diminishing fraction. We will move increasingly to electrification. Our children and grandchildren will eventually drive electric cars.”

Alternatives, like biofuels and biojet diesel, will eventually replace fossil fuels in sectors like aviation. The US Airforce is already moving in that direction. Even the US Navy, which uses bunker fuel to power many of its ships, is switching over.

The Real Future Of This Sector Is Offshore

The 4 GW of wind capacity added in 2014 is impressive, but Hoffman believes the real future of this sector is offshore.

“I consider offshore wind to be the most important and exciting emerging renewable technology. When you go offshore, the winds are stronger and more steady. That’s really critical because more steady winds produce a higher capacity factor. A larger fraction of the potential is realized in generating energy, which is really the ultimate test. The other thing is that with higher speeds, the economics become much better. The energy extracted from the wind goes as the third power of the wind speed. So if you double the wind speed, you get eight times the power out of that machine,” said Hoffman.

Developers can also build larger turbines than on land. There are a lot of logistics involved, but 6 to 7 MW turbines are presently common offshore. Hoffman has seen plans for 10MW to 15MW and even a 20 MW turbine.

“Of course there will be hurricanes and things like that and these machines have to hold up under those conditions, but I have confidence we can do that.”

Photo Credit: Total US Capacity at the end of 2014 by Clean Techncia
“The resource available in offshore wind is very, very large. Look at the United States. It has four coastal regions: The East Coast; The West Coast; The Gulf Coast; and the Great Lakes Coast. There is a lot of wind available.”

There is a potential for close to 4,000 GW of capacity, according to the National Renewable Energy Laboratory’s (2010) report “Large-Scale Offshore Wind Power In The United States.” This figure needs to be reduced, by subtracting areas (like shipping lanes) where you cannot put wind turbines, but the potential is still HUGE.

“To put this number in perspective, the United States’ present potential for generating electricity is just over 1,000 GW,” said Hoffman. “So even if only a fraction of offshore potential is realized, we have a major source of energy coming online in the future.”

Though the US has been slow to adopt offshore wind, Hofffman expects that to change in the next few years. It will start on the East Coast, where the winds are strong and a large part of the population lives.

New Solar Capacity

Photo Credit: Powerfilm Solar Panel by Stephan Ridgway via Flickr (CC By SA, 2.0 Liicense)
The 5.2 GW of new solar capacity added in 2014 is also impressive, but just a beginning. The potential for growth in this sector is enormous.

“Solar may be the fastest growing energy source in the world today. Look at what’s happening in Germany. There are days when more than half the electricity comes from solar and Germany is not a particularly sunny country, said Hoffman. “So I can see that happening in the United States. States like Nevada, Arizona have an incredible solar input.”

Resistance From Utilities

“There has been a lot of resistance from utilities. They have resisted net metering and other simplified connections to the grid because they see it as diminishing the importance of their business model. They make a lot of money selling energy at peak hours, when electricity is more expensive. If solar provides energy during those peak hours, their business model is upset. They are going to resist it for as long as they can because change is hard for people to accept.”

This battle is already over in Germany, where the four major utilities have now switched over to become providers of solar energy. They lease solar systems, maintain them and are now offering energy storage for homes.

Hoffman perceives the utility model of a centralized grid as a relic from the past. There will be more of a variety of systems in the future. Some people will utilize battery storage to be independent of the grid, there will be more local microgrids, regional grids and possibly even a global multinational grid.

“I have no question that this is happening. It’s happening as we speak. It will unfold over the next decades, but I think it is inevitable,” said Hoffman.

Though he believes both nuclear energy and natural gas will continue for several decades, Hoffman predicts their importance will diminish. Environmental pressures and economic realities are pushing the US into renewables.

“Eventually Congress will have to move in this direction, even Republicans can get the message,” he said. “What’s going to happen is that people are going to be talking to their members of congress. The business community has a major impact on Congress and they are going to see it is in their interest to move ahead with a clean energy system.”

US Needs To Adopt An Energy Plan

Photo Credit: Library of Congress by Juan Llanos via Flickr (CC BY SA, 2.0 License)
The US needs to adopt an energy plan, so that people have certainty about the future. Businesses need it, so they can formulate their own strategies.

“Climate Change is real and it has adverse effects, but they are long term effects,” said Hoffman. “Someone has to do the long term thinking to protect this generation as well as future generations from having to deal with it under less desirable conditions.”

Despite the resistance in Congress, Hoffman believes a carbon tax is inevitable. “Putting a price on emissions” is probably the best was to reduce them. The revenues can be used to reduce other taxes, like income tax, or redistributed to low income persons who are adversely affected by increased energy costs due to a carbon tax.

“I think there are a lot of tradeoffs on a carbon tax that would not only address carbon emissions, but that could also provide revenues that can be applied to other aspects of our economy,” said Hoffman.

“I see the early stages of what I consider an inevitable transition away from traditional energy sources, largely fossil fuel sources but also including nuclear to some extent, to an increasing reliance on renewable energy in the form of wind, solar, geothermal, biomass and eventually ocean energy as well.”

“I have been saying this was inevitable for many years, but for a long time it was hard to get people to accept that. I think we’re seeing it happen. When you look at the numbers, both from the Energy Information Administration (EIA) of the Department of Energy and the Federal Energy Regularity Commission (FERC) you can see that the transition is beginning to take place. The new capacity that is coming online is largely renewables.”

(Top Photo Credit: Photo Credit: Lillgrund Wind Farm, Near Copenhagen by Håkan Dahlström via Flickr (CC By SA, 2.0 License)

Reflections on Short-term vs. Long-term Thinking on Energy Policy

In this post U.S.-election period there are many articles on what to expect from the U.S. Congress now that Republicans will control both Houses of Congress for at least two years after January 20, 2015. After reading quite a few of them, and authoring one in a recent blog post (‘What Might the 2014 Elections Mean for U.S. Energy and Environmental Policy’), my thoughts turned to the conflict between short-term and long-term thinking in the formulation of energy policy. In particular, I am reminded of the observation by Kevin Phillips, former Republican strategist and then registered Independent, in his 2006 book ‘American Theocracy’, as paraphrased in one of several reviews of his book: “His objective historical notes about previously fallen Empires involved several historical facts that have occurred to other great powers in the past: global usurpation, religious intransigence, debt, and dependency on resources that are *outside* of the nation…..it’s a truthful observation based on statistical facts, not necessarily just opinion. And, it’s a concept that happens to ALL empires over the course of world history.”

In his discussion Phillips refers to the fall of the Roman Empire, but also more recent examples of previously-dominant nations that relied too long on particular energy sources as other resources became available and strategically important. He cites the Netherlands and other maritime nations for dependence on wind energy in the 1600’s, the British dependence on coal in the late 18th and early 19th centuries, and the U.S. dependence on oil in the 20th century. These points have stuck with me ever since.

U.S. dependence on oil and other fossil fuels (coal, natural gas) in these early years of the 21st century is still extensive, and many vested interests with short-term perspectives are understandably fighting hard to maintain this status quo. Economic self-interest, rather than long-term national interest, is a powerful force and few champions exist in the U.S. Congress for a longer-term perspective. This is fully understandable from a political point-of-view when the next election is only two or fewer than six years away, and politics today is overly-dependent on private campaign contributions. However, this is survival, not leadership, and many if not most of our elected representatives take the easy way out by voting for short-term rather than long-term solutions to our nation’s energy problems. To this observer it seems clear that a transition to a clean energy society is an imperative for the U.S. and other countries, and the faster this transition occurs the better.

As with any transition there are winners and losers, and the U.S. fossil fuel industries feel deeply threatened by potential loss of markets, as is already happening in the coal industry. This will happen in the oil industry as well, as U.S. demand for oil is steadily reduced by more energy-efficient transportation vehicles, and despite the emergence of oil derived from fracking of oil shale deposits. This will also be true of natural gas from fracking, as fracking is likely to be a few decades phenomenon and not a long-term energy resource. On a global basis this transition will be stretched out as developing countries require energy supplies now as their economies develop (e.g., increased demand for cars/transportation fuels in China and India), and renewable energy supplies are developing their ability to meet this growing and long-term demand in an environmentally sustainable way.

Looking beyond self-interest for most people is not easy, and requires champions – i.e., people with a long-term vision of the future (the ‘vision thing’ again, as derisively characterized by President H.W. Bush) who are willing to stick their necks out to propose policies that may have short-term political liabilities. Examples are Lincoln’s decision on Emancipation, Teddy Roosevelt’s protection of the environment and his battles against corporate irresponsibility, FDR’s push for Social Security legislation and banking reform, Truman’s racial integration of the U.S. military, LBJ’s support of civil rights legislation, and Obama’s push for health insurance for millions of previously-uninsured Americans. His recent push for stimulating renewable energy production and reducing U.S. carbon emissions may fall into this category as well.

To be truthful, I see no national leaders post Obama who are naturals to serve this role on energy and environmental policy. Few, if any, Republican politicians are willing to buck the right wing of their Party on energy and other issues, largely out of fear of right-wing primary challenges, and no Democratic leader has assumed this mantle in conspicuous ways. Even Hillary Clinton’s priorities on energy and environmental policy are unclear, despite years in the public limelight, due to her extremely cautious approach to an announcement of her interest in the Democratic nomination for President in the upcoming 2016 election.

In light of all this, I am concerned about our long-term energy future and the price we will pay for not adopting appropriate policies now that will expedite the clean-energy transition, which I consider inevitable. The costs I see are in continued dependence on other countries for parts of our energy supply, less flexibility in our foreign policy, environmental damage due to pollutant and carbon emissions, and long-term economic vulnerability as fossil fuel energy costs rise and other countries take the lead in providing clean-energy technologies to an expanding and more environmentally-sensitive global population. The U.S. has a choice to make, to be a major player in the coming clean-energy future, or continue to resist the speedy replacement of our current fossil-fuel-dominated energy infrastructure and play a diminishing role in the decades ahead. This is Kevin Phillips’ point, and one I agree with strongly: if the U.S. is not sensitive enough to the role of energy resources in a nation’s global standing, its role can change over time . We should learn from history, not just repeat it.

Looking Ahead 30-40 Years – A Risky Business

History has always been my favorite subject, starting in high school, and still constitutes a major part of my personal reading. Needless to say I have a strong interest in other topics as well, as attested to by my long career in science and engineering and education/mentoring activities with young people. What often fascinates me is looking back at how things have changed in the past, often in unexpected ways, and how people looking back in the decades ahead will put their perspectives on what we are doing today. This blog post is my attempt to flesh out these thoughts, while acknowledging the difficulty of looking into the future. If I look far enough into that future I will not be around to suffer the slings and arrows of projecting incorrectly, or collecting the kudos for projecting accurately. Nevertheless, it feels like a stimulating and challenging activity to undertake, and so here goes.

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Let me start by going back seven decades to the 1940s when I was a young kid growing up in the Bronx and just beginning to form my likes and dislikes and develop opinions. My love for science fiction developed at that time and was probably a dead give-away of my future career interests. An important shaping event was the dropping of the first atomic bomb on Japan on August 6, 1945, an event that I still clearly remember learning about on the radio while sitting in the back seat of my parents’ car. Without a deep or much of any understanding at that time, I somehow sensed that the world had changed in that August moment. I still feel that way after many subsequent years of reading and studying.

The following decades saw several other unexpected and defining events: the addition of fusion weapons (hydrogen bombs) to our nuclear arsenals, commercial applications of controlled nuclear fission (nuclear submarines and nuclear-powered surface ships, and the first commercial nuclear power plant which was actually a land-based nuclear submarine power plant), development and emergence of the transistor as a replacement for vacuum tubes (first using germanium and then silicon), the development of the first solar cell at Bell Labs, the development and application of laser technology, the emergence of the information technology industry based on the heretofore abstract concepts of Boolean algebra (0s and 1s), and the increasing attention to a wide range of clean energy technologies that had previously been considered impractical for wide scale application – wind, solar, geothermal, ocean energy, fuel cells, advanced battery technologies, and a broad range of alternative liquid and gaseous fuels. Each in its own way has already changed and will further change the world in future decades, as will other technologies that we now only speculate about or cannot imagine. This is the lesson of history – it is difficult for most of us to look ahead and successfully imagine the future, and one of my earlier blog posts (‘Anticipating the Future: It Can Be Difficult’) discusses this topic. In the following paragraphs I speculate about the future with humility but also great anticipation. My only regret is that I will not live long enough to see most of this future unfold.

I will divide this discussion into two parts on which I have focused some attention and feel that I have some knowledge – medicine/health care, and energy. That leaves all too many aspects of the future that I don’t feel qualified to comment upon – e.g., what more will we learn about Amelia Earhart’s disappearance, Cuba’s possible participation in John Kennedy’s assassination, and the future of the tumultuous Middle East and the countries of the former Soviet Union. My primary focus in this post will be on the latter of the two parts, energy.

To help you understand my interest in medicine and health care I confess that at one point in my career, before committing to pursuing a PhD in physics, I gave serious consideration to attending medical school. During this period in the early 1960s I was a research scientist at Texas Instruments (TI) and was excited about the possibilities of miniature electronics which TI was pioneering in. I even suggested to my TI bosses that we undertake the application of transistors and sensors to artificial vision, but it was much too early for the company to make such a commitment. Today, 50 years later, that vision is being realized.

I also see great promise in the application of miniature electronics to continuous in-vivo diagnosis of human health via capsules that float throughout a human’s blood network, monitor various chemical components, and broadcast the results to external receivers. This will depend on low-powered miniature sensors and analysis/broadcast capability powered by long-lasting miniature batteries or an electrical system powered by the human body itself. Early versions are now being developed and I see no long-term barriers to developing such a system.

A third area in which I see great promise is the non-invasive monitoring of brain activity. This is a research area that I see opening up in the 21st century as we are beginning to have the sensitive tools necessary to explore the brain in detail. Given that the brain is responsible for so many aspects of our mental and physical health I expect great strides in the coming decades in using brain monitoring to address these issues.

The energy area is where I have devoted the bulk of my professional career and where my credibility may be highest – at least I’d like to think so. Previous blog posts address my thoughts on a wide range of current energy, water-energy, and related policy issues. Recognizing that changes in our energy systems come slowly over decades and sometimes unexpectedly, as history tells us, I will share my current thoughts on where I anticipate we will be in 30-40 years.

Let me start with renewable energy – i.e., solar, wind, hydropower, geothermal, biomass, and ocean energy. I have commented on each of these previously, but not from a 30-40 year perspective. Renewables are not new but, except for hydropower, their entering or beginning to enter the energy mainstream is a relatively recent phenomenon. Solar in the form of photovoltaics (PV) is a truly transformative technology and today is the fastest growing energy source in the world, even more so than wind. This is due to significant cost reductions for solar panels in recent years, PV’s suitability for distributed generation, its ease and quickness of installation, and its easy scalability. As soon as PV balance-of-system costs (labor, support structures, permitting, wiring) come down from current levels and approach PV cell costs of about $0.5-0.7 per peak watt I expect this technology to be widespread on all continents and in all developed and developing countries. Germany, not a very sunny country but the country with the most PV installed to date, has even had occasional summer days when half its electricity was supplied by solar. In combination with energy storage to address its variability, I see PV powering a major revolution in the electric utility sector as utilities recognize that their current business models are becoming outdated. This is already happening in Germany where electric utilities are now moving rapidly into the solar business. In terms of the future, I would not be surprised if solar PV is built into all new residential and commercial buildings within a few decades, backed up by battery or flywheel storage (or even hydrogen for use in fuel cells as the ultimate storage medium). Most buildings will still be connected to the grid as a backup, but a significant fraction of domestic electricity (30-40%) could be solar-derived by 2050. The viability of this projection is supported by the NREL June 2012 study entitled ‘Renewable Electricity Futures Study’.

Hydropower already contributes about 10% of U.S. electricity and I anticipate will grow somewhat in future decades as more low-head hydro sites are developed.

For many years onshore wind was the fastest growing renewable electricity source until overtaken recently by PV. It is still growing rapidly and will be enhanced by offshore wind which currently is growing slowly. However, I expect offshore wind to grow rapidly as we approach mid-century as costs are reduced for two primary reasons: it taps into an incredibly large energy resource off the coasts of many countries, and it is in close proximity to coastal cities where much of the world’s population is increasingly concentrated. In my opinion, wind, together with solar and hydro, will contribute 50-60% of U.S. electricity in 2050.

Other renewable electric technologies will contribute as well, but in smaller amounts. Hot dry rock geothermal wells (now called enhanced geothermal systems) will compete with and perhaps come to dominate traditional geothermal generation, but this will take time. Wave and tidal energy will be developed and become more cost effective in specific geographical locations, with the potential to contribute more in the latter part of the century. This is especially true of wave energy which taps into a large and nearly continuous energy source.

Biomass in the form of wood is an old renewable energy source, but in modern times biomass gasification and conversion to alternative liquid fuels is opening up new vistas for widescale use of biomass as costs come down. By mid-century I expect electrification and biomass-based fuels to replace our current heavy dependence on petroleum-based fuels for transportation. This trend is already underway and may be nearly complete in the U.S. by 2050. Biomass-based chemical feedstocks will also be widely used, signifying the beginning of the end of the petroleum era.

I expect that other fossil fuels, coal and natural gas, will still be used widely in the next few decades, given large global resources. Natural gas, as a cleaner burning fossil fuel, and with the availability of large amounts via fracking, will gradually replace coal in power plants and could represent 30-40% of U.S. power generation by mid-century with coal generation disappearing.

To this point I have not discussed nuclear power, which today provides close to 20% of U.S. electricity. While I believe that safe nuclear power plants can be built today –i.e., no meltdowns – cost, permanent waste storage, and weapons proliferation concerns are all slowing nuclear’s progress in the U.S. Given the availability of relatively low-cost natural gas for at least several decades (I believe fracking will be with us for a while), the anticipated rapid growth of renewable electricity, and the risks of nuclear power, I see limited enthusiasm for its growth in the decades ahead. In fact I would not be surprised to see nuclear power supplying only about 10% of U.S. electricity by 2050, and less in the future.

To summarize, my picture today of an increased amount of U.S. electricity generation in 2050 is as follows:

Generating Technology : Percent of U.S. Generation in 2050
nuclear: 5-10
coal: 0-5
Oil: 0
natural gas: 30-40
solar + wind + hydro: 50-60
other renewables: 5-10

I am sure that some readers of this post will take strong issue with my projections and have very different thoughts about the future. I welcome their thoughts and invite them to join me in looking ahead. As the title of this post acknowledges, looking ahead is risky business, but it is something I’ve wanted to do for a while. This seems as good a time as any to do so.

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Off to Doha – international Herald Tribune’s Global Clean Energy Forum

I will be leaving on Sunday, October 6th to spend most of a week in Doha, Qatar. This will largely be to participate in the International Herald Tribune’s annual Global Clean Energy Forum. My next blog(s) will be based on what I experience and learn at the Forum. (Note: as of October 15th the IHT will formally be relabeled New York Times International).

The following description is from the 2013 Forum web site (http://www.ihtconferences.com/gcef-2013.aspx):

“Sustainability in the new energy reality

The 2013 Global Clean Energy Forum will explore the new energy reality – that of abundant fossil fuels, cooling political sentiment towards renewables and risk-averse investors.

It will examine the new role of clean energy within the overall energy mix, and the complete journey towards a sustainable future which will include cleaner hydrocarbons and nuclear 2.0.” The full agenda and other Forum details can be found at the web site.

Solar PV

Specifically, I will be a speaker in the October 9th interview session labeled ‘The new energy mix’ (details below):

“On-stage keynote interview: The new energy mix
Shale gas, and increasingly shale oil, are changing the dynamics for the whole energy industry – especially in the US, but with global repercussions. What does this mean for renewables?

How will renewable energy prices be affected by the rise of shale?
What part will gas play in the transition to clean energy?
What next for onshore and offshore wind?
What is the place for Concentrated Solar Power in tomorrow’s energy mix?
How can the water energy nexus be balanced?
Dr Allan Hoffman, Visiting Professor of Renewable Energy and Desalination, GORD (Gulf Organization for Research and Development) and former Senior Analyst, Office of Energy Efficiency and Renewable Energy, US Department of Energy (DOE)
Santiago Seage, CEO, Abengoa Solar
Omran Al-Kuwari, CEO & Co-founder, GreenGulf Inc.”

Meetings such as this are becoming more common and needed as renewables enter the energy mainstream.