Mankind’s Use of Energy

Civilization

Defining ‘civilization’ is almost as difficult as defining energy. From a linguistic point of view, it is the act of taking a person out of the wild and civilizing them within a city. But this seems to miss hunter / gatherers and family farms. Yet collections of people with this lifestyle could well constitute a civilization. Let’s first take a look through history so as to understand civilization a bit better.

1. Chronology

Humanity has had exponential growth in population, knowledge, achievements and hope over the last 40 000 years; pretty well since the end of the last major ice age. In that time, we have built the wonders of the modern and ancient world. All achievements needed energy. Any achievements set forth in plans for the future must also consider the energy expense. So, if we look at the past, we may get ideas for the future. The following table shows some of our progress to date.

Event Date Cost Manpower Effect
Egyptian Pyramids ~4000 BC[1]
Stonehenge ~2000 BCE
Assyrian invasion
of Egypt
671 BC Over-extended nation
Greek Acropolis 500 BC
Alexander the Great 400 BC Half a ton of silver talents a day for army pay Needed to continue conquering to pay for army
Roman Expansion 200 AD 1 legion = 1.5M denari per annum 30+ legions Over-extended nation.
Coinage debasement led to inflation,annual budgets, and income policy
Teotihuacan 200
Danegeld 800 40M silver coins Prevented invasion. Forged single national currency
Crusades 1180 150 000 silver marks ransom Funded by taxes on all moveable property and all income
Chinese Flotilla 1405 27 800 crew, 1180 ships Political stoppage caused China to receive European sailors rather than vice versa.
Spanish Armada 1580 4M ducats 130 ships South American plunder was squandered. English drew Genoan bills to reduce available loans
War of the Spanish Succession 1694 English invent ‘national debt’ and create Bank of England. Initiated perpetual loan at defined interest rate.
American Revolution 1776 General acceptance of paper money. Hyperinflation as no control of printing presses.
Napoleanic Wars 1815 £15M loaned by Britain to allies Commercial banks main source of funding. Britain’s national debt grew from £273 to 816M
U.S. Civil War 1860’s $5.2B Created state and income tax for federal revenue. Inflation reduced value of money by half.
Suez Canal 1869 $80M Facilitated economy
Fanco-Prussian War 1871 5B Franc indemnity Money raised through lending
Schloss Neuschwanstein/
Linderhof
/Herrenchiemsee
1886 31.2M Marks Bankrupts nation
Canada’s cross country rail line 1886 $150M, 59% by taxpayers Joint private/public funding
Trans-Siberian line/ BAM 1905 and 1991 Trans-Siberian ? / BAM=$30B Rail lines connected country
World War I 1914 10’sM £ 1st billion £ loan
Panama Canal 1914 $400M Facilitated economy
Hoover Dam 1935 $165M 21 000 Fully paid by power production
World War II 1930’s-40’s $288B for US millions 3% loan rate set as maximum in GB.
US national debt grew from $40B to 260B at 2.5%
Manhattan Project 1945 $2.2B 130 000 staff Expand technology
Apollo moon landing 1960’s $9.3B 300 000 staff Expand technology
Channel Tunnel 1993 £9B Facilitate economy
Troll/Kollsnes 1996 35.5B NOK Resource acquisition
3 Gorges Dam 2003 $25B+ US Resource acquisition
International Space Station 2005+ $35-160B over 40 launches Expand technology
Jiaozhou Bridge 2011 $1.5 to 8.8B 10,000people, 450000tons steel, 2.3e6m3 concrete Reduce commute by 20 minutes
Fibre optic connection 2011 $300M save 3 milliseconds travel
Lunar Development soon $25B 100’s of thousands Facilitate economy, expand technology, acquire resources

Telling is the increasing amount of energy and effort being now allocated to recovering stores of energy. Gone are the simple days of energy stores, petroleum, bubbling up out of the ground. Now it is pried from more and more difficult and hazardous places. Hence, the greater effort to obtain it. Eventually we will need more energy to obtain stores of energy than the amount of energy in the stores. At this moment, our supplies of energy stores will be effectively gone.

[1] Some people postulate that the pyramids were built by an agrarian community during the previous inter-glacial warm period about 40 000 years ago. If true, this is an example of a human civilization that rose to greatness and then completely vanished.

Humanity has had exponential growth in population, knowledge, achievements and hope over the last 40 000 years. We have built wonders of the modern and ancient world. All achievements needed energy. Any achievements set forth in plans for the future must also consider the energy expense. The following table shows some of our recent progress; let’s assume that cost and energy are directly related.

Event Date Cost Effect
Shanghai-Hangzhou 200km rail link 2010 $US4.35B Facilitate travel, showcase technology
Shanghai-Beijing 1318km rail link 2014 $US32.5B Facilitate travel, showcase technology
Macau gambling 2010 +$US13B Pleasure


2. Strategy

Humanity needs energy to power themselves into the future. Energy fuels bodies and enables technology. Insufficient energy necessitates an inability to sustain people at the desired technological level. A sufficient energy supply means that the expected number of people will live a full life at a desired technological level.

From this description we see that we can undertake an assessment of the future of humanity using just three parameters; energy availability, number of people and technological level. We know the number of people on Earth continues to increase. The level of technology and its associated energy consumption equally increase. The limits to energy supplies on the finite Earth mean limits to both technology and number of people. Choosing an energy intensive future whether with large numbers of people1 or enhanced technology requires access to energy resources. Increasing the number of people or the amount and level of technology increases the demand on energy. Decreasing the supply of energy will decrease the number of people and/or their practicing level of technology.

People do live at different levels of technology. However, defining technological levels is more difficult than counting the number of people. Assuredly people are knowing and using a lot more technology than our erstwhilecavemen ancestors. However, aside from fictitious examples set in civilization styled computer games, there aren’t any definitive levels. Further, there are various degrees of technology in use throughout the world. In large cities of the developed countries, people drive cars, communicate over cell phones and often have a computer or robot aid them in their work. In developing countries there are villages where people exist in a manner that is little changed from their predecessors of thousands of years ago. Hence, aside from knowing that the knowledge and utilization of technology by some people increase, definitive levels don’t exist.

Nevertheless we can define qualified levels of technology. Further, we can estimate the number of people who live at this level. Last, we can estimate the energy factor2 associated with the technological level. The result is an estimate of the current energy demands for the current population. From this, we have an estimate of the total energy demand for all the people and all their technology levels.

Knowing the number of people and the levels of technology is interesting. Why is it pertinent to strategic planning for the future? The answer is twofold. One, it is people who perform the actions and do the work to complete projects3. Large projects like building the pyramids of Giza or unraveling the DNA structure of humans require thousands of people. Two, energy is needed both to power people’s body but also to power the technology. Sailboats, barges, levers and wheels were technological achievements likely employed in pyramid construction. Computers, microscopes and scanners are symptomatic of the technological aids for the DNA researchers. If we want to construct space stations or find a cure for cancer, we will need energy. Energy powers the workforce and the technology. Energy is critical in any strategic plan.

Making plans in a world with infinite energy and people is trivial. This situation is one extreme for planners of the future. It is a nice extreme as anything is possible. Here, happenstance can direct the choices as any wrong choices can simply be corrected. The other, more telling extreme is when the amount of energy is limited and can diminish to zero. In this extreme, plans are worthless as nothing is possible because no work or action is achievable.

We know energy on Earth is finite4. We also know that today we are bathing in a largesse of energy preserved from vegetation that captured the Sun’s rays over hundreds of millions of years ago on Earth. We will soon consume all the supplies of this non-renewable energy source5. Thus, any strategic plan for the future must consider not only the finite amount of energy stores available on Earth but also the fact that with today’s rate of energy consumption, we are living at a non-sustainable technological level. That is, the Earth’s renewable energy supplies cannot maintain the current number of people at their current level of technology. This shortfall in energy supplies will sorely affect the future so that planning may very well be an exercise in minimizing drops than supporting growths. At least this will be true until people return to using an amount of energy that is sustainable.

Given this prognosis we can proceed into postulating various strategic plans. We can decide on a plan that forsakes technology. We know that in the past there were millions of people who consumed no more energy than their biological needs. This was sustainable and perhaps we can return to this level if the associated supporting ecosystem can return to its previous level. Yet, this would obviate the progress of the previous tens to hundreds of thousands of years of advancement of our species. This is a possible plan but gives little credit to our species.

Aficionados of science fiction stories know well of another future. This one is dedicated to technology. All life on Earth is bent to promote an increased human population which uses their numbers to advance technology. In this future, all competitors to the human species, all other energy-using non-beneficial living things, are exterminated. This future optimizes humanity’s energy availability but leads to a sterile planet with little room for errors in ecology. With little knowledge or experience in deciding on the efficacy of other species, this future is hazardous but quite possible for humankind. However, if wrong choices are made, there is every possibility of ending humanity’s future.

The optimum future likely lies somewhere between these two extremes. A future without technology or a future with only technology leads to too great a risk of no future for humanity. Any strategic plan for our species must take into account the supply of energy, an achievable level of technology and the survivability of our species.A strategic plan which accomplishes all this just may be the best route for survival. At least, it will be better than letting happenstance decide our future.

Qadesh – 1300 BC

The mighty empires of the Pharoah’s and the Hittites came to blows about the year 1300 BC near the town of Qadesh in Syria. The town of Qadesh is about 600 km from the centre of power for each of these kingdoms. The typical army speed of the times was 25 kilometres per day. Therefor each army needed about 30 days to get to battle and 30 to return (i.e. a 60 day campaign).

Lengthy battles seldom occurred as most ended in 2 to 3 days. The construction of provisions could well be the reason.

In this late bronze age, battles were often fought after the harvest time of May. With the serfs being freed of chores, the leaders put them into the army and headed out to make war. This all came at an energy cost.

Hittite energy costs

In their army, they had;

  • 3700 chariots each with 3 horses
  • 40 000 infantry

A man marching with full gear would need 3600 kCal a day. Similarly, a horse pulling a laden chariot needs about 25000 kCal of digestible energy a day. Given this and assuming that the number for the Hittite infantry includes their charioteers then their daily energy needs would be;

Men + horses = 40000×3600 + 3700x3x25000 = 4.2×1011Calories each day.
And for the campaign of 60 days, the total energy needs would be 2.5×1013Calories.

Egyptian Energy Costs

The Egyptian logistic issues were similar to the Hittites. Each kingdom’s centre was about equal distance from the town of Qadesh hence each had to travel the same distance. Also each army likely traveled at the same pace so their traveling time would be the same. In the Egyptian army there were;

  • 4 corps of 5000 men each
  • Each corp included 4000 infantry and 500 chariots each with 2 charioteers running two horses.

Their total energy expenditure is thus;
Men + horses = (4000×4 + 500x2x4)x3600 + 500x2x4x25000 = 1.72×1011Calories.
And for the campaign of 60 days, the total energy needs would be 1.0×1013Calories.

Total

The total energy cost would be about 3.5×1013 Calories (8.36×1012joules) though this assumes all the people and horses who went to battle also returned. This amount of energy is on the same scale as the amount of energy needed to launch the space shuttle into orbit.

This is a huge quantity of energy but only includes food. The energy needs to dress each person, build the chariots and manufacture all the spears, bows, arrows, and knives would increase this amount.

Energy Source

The energy source is the net primary production in the area. This must be a surplus from that needed to feed the farmers, administrators and other support elements for the army. Today’s wheat yields about 3.5×109 calorie per tonne. Ancient wheat, without the genetic refinement, likely was less than a tenth the source of energy, or 3.5×108 calories per tonne. Therefore, this campaign would need 10 000 tonnes of wheat (assuming all food came from wheat). The going rate was about a tonne per hectare so the campaign would need the excesses from 50 000 hectares (or 500 square kilometers.
I.e. a tenth the area of present day Lebanon).


3. Caesar and the Rhine 56BC

See https://www.livius.org/pictures/a/roman-empire/caesar-s-bridge-across-the-rhine/

Julius Caesar, man of his times, undertook and completed many wondrous accomplishments during his tenure in consul in Rome. In June 56 BC, he took his legions into Gaul to further subjugate the locals. But, his aggression resulted in the slaughter of hundreds of thousands of local. In a show of political propaganda and military strength, he built a bridge to allow his army to cross the Rhine river and for the first time, extend Rome’s influence directly into the territory of the Germanic tribes.

Engineering a bridge has never been trivial and the Romans had little historical precedence to build upon. Nevertheless, they were master engineers and had the necessary material at hand. With his 40000 men and the surrounding forest, Caesar created a solid platform for his force to safely cross the Rhine river and undertake a few weeks pillage.

Caesar recounts this amazing endeavour within his diaries. Within, he graphically describes using huge stones to ram logs into the river bottom and then laying long timbers to establish a support and platform.

This undertaking utilized energy through a number of ways. The men had to be feed. The trees contained large quantities of energy to grow. And the effort to chop, clean, move and install the wood added to the total.

Caesar had 40000 men work for 10 days thus needing 1.3e13 Joules.

Assume Caesar used fir trees. Multiplying the energy content of each with the likely number of trees results in an energy content of 8.8e13 Joules.

Felling and clearing the trees would use considerable effort but is difficult to measure. However, Caesar spoke of a stone pile-driver pushing the logs into the river bottom. Lifting and dropping the stone the likely number of times results in an energy expenditure of 2e7 Joules.

The rough energy total for building the bridge is 1e14 Joules. This is greater than the energy needed to loft the space shuttle into orbit. It is approximately the same as the energy released by the atomic bomb dropped on Hiroshima.

Sadly, given that the bridge was for propaganda purposes rather than practical purposes, Caesar destroyed it on his return.


4. Rome,the city

Our civilization grew by leaps and bounds once we started living in cities. These communities allowed individuals to specialize. Rather than a subsistence living, individuals could rely upon others for some of their various needs and they could use their time to focus upon a singular goal. For example, painters expanded from iconic images on cave walls to surrealistic images on canvas. Cities gave them the opportunity, our civilization has flourished ever since.

At first, cities relied upon adjacent lands with which to supply the needs of their populace. Neighbouring farms produced much more food than could be consumed by the farmer. They sold the excess at market. City residents bought the food with money that they earned through their specialized craft such as candle making. All benefited and new produce and capabilities made the populace ever more capable.

Today, in our global community, city residents can contemplate minutiae such as atomic physics while munching upon food grown thousands of kilometres away. This is the state of things as we now know it. However, what would happen if city residents couldn’t draw upon the produce of the globe and had to rely upon the immediate surroundings? Let’s look.

Take Rome, a modern city in Italy. With some simple checking on the Internet, we can learn a lot. It has about 2.7 million residents and officially encompasses an area of 1285 square kilometres. The Internet can also give us an energy balance for this city with a little deductive reasoning. First, consider the local land cover types. These are available from the GlobCover project (http://ionia1.esrin.esa.int/) as determined by satellite data down to fidelity of 300metres. By plotting the data we can determine the land cover as shown in the following figure.


The red pixels indicate a non-vegetative land cover, a land type that does not capture energy from the Sun. These are effectively the city footprint. The other colours, yellow and green and such represent land with cover that contains vegetation that is capturing energy from the Sun. The extent of the figure is to match the official size of the city rather than to follow the city’s actual boundary.

The satellite shows us detail that wouldn’t be easy to see from the ground. For instance, 29% of the above region has insufficient vegetation to register with the satellite. That is, the human made structures are so dense that there is no evidence of vegetation.

The land cover tells us another story. From it, we can determine an energy balance for the city of Rome. The Italian nation has an annual energy consumption of 6.84e18 Joules per annum. Given this and the population of the city then the resulting energy draw down is 3e17Joules per annum. We can also determine the energy stored in the vegetation by using the land cover type and an estimate of the Joules per gram of vegetation. The result is 5e14Joules. That is, in one year, the city of Rome uses more than 600 times the amount of energy that’s immediately available within their city.

Let’s extend the above region to the point where the local availability of energy satisfies the annual need of the people of Rome. For this we have the push the limits out about 11 times as shown in the following figure.

The above clearly shows Rome in the centre of the Italian peninsula. It also shows the wide expanse of vegetation that would need to be consumed by the populace of Rome so as to satisfy the energy demands for one year. This doesn’t take into account the energy demands of all the other people and cities in the same region.

The purpose of this exercise is to demonstrate the energy availability if people were to satisfy their needs using immediate resources. While the possibility exists, assuming a lossless energy transfer, recall that so doing would only satisfy the energy needs for one year. Then after, no vegetation would exist for subsequent years. Nor would any vegetation exist for any other purpose such as feeding people or feeding other life forms. The energy draw would effectively consume all life in the region.

stone city


5. People Together

Cities represent the hallmark of our civilization. They indicate our ability to nurture and grow specialists. A specialist, whether a doctor, lawyer, plumber or other, can focus upon their task without undue concern about gathering food or protecting their family. Effectively, in cities, they can allocate all their effort and energy in pursuing their speciality.

Yet, cities serve to enable specialist. They responsibility doesn’t include defining and pursuing a future greater than that needed by their residents. At best, they will upgrade the city infrastructure so as to improve the livelihoods of the residents. The following table is an indicator of a typical city’s allocation of energy as typified by its outlay of tax revenues.

A High-Tech City of 1 Million
Allocation Percent
Education 18.66
Public Transportation 13.85
Security (police) 12.83
Social Services and health 11.25
Debt 9.51
Safety (fire and paramedics) 8.64
Administration, planning 7.46
Roads and Traffic 6.7
Parks, Recreation, Culture, Conservation 5.17
Garbage, Recycling 4.09
Library 1.85

The above doesn’t include the effort to provide a potable water supply. For this example, it’s a function of the amount used and it is about a 50% increase on the above.
As can be seen from the above table, there’s precious little allocation to looking forward. Planning and economic development amounts to 0.22%. Yet, this is mainly to put some sense into the growth of the city. Understandably, city ratepayers aren’t interested in funding risky endeavours even if the end result is a much improved civilization.


6. Technology Factor

Contemplation of the future starts by looking at the past. Let’s look at humanity, civilization and energy. Before humanity came along, that is, before the species Homo Sapiens Sapiens, people used zero energy and had no civilization. Eventually people lived on planet Earth. Just to survive, they needed energy. This biological need was satisfied by fruits, vegetables and meat. People, as omnivores, can eat many other living organisms to get their necessary dietary requirements of energy, protein, carbohydrates and vitamins. At this level of civilization, people consumed only the energy they needed to stay alive. Therefore their full energy requirements were just a product of the number of people multiplied by their dietary energy needs.

Total Energy = Number of people * Personal dietary needs

While people went about their lives, they got smarter. They learned about levers, ropes, sails and fire. Many of their tools were to control energy for their own purpose. Perhaps fire most of all represents the transfer of energy from a natural flow (decomposed wood returning to the dirt for other plants to use)to a human contrived flow. Humans used this chemical reaction to release the energy stored in the wood. They wanted the resulting heat and light. Technological knowledge gave people a decided advantage in the struggle for life. Energy requirements for knowledgeable people was thus greater than those without knowledge. The overall energy is then the number of unknowledgeable people multiplied by a person’s biological needs plus the number of knowledgeable people multiplied by the biological need and multiplied by a technology factor. The technology factor is the increase in energy needed to keep a person at their desired technological level. The following equation represents this relationship.

Total Energy = Number of unknowledgeable people * Personal dietary needs
plus
Number of knowledgeable people * Personal dietary needs * (1 + technology factor)

The increase in energy usage as a function of technology is dependent upon the amount and type of technology. For example, consider all of Canadians as technology experts. This country’s population is about 32 million people. Their dietary need, and every other adult male, is 10 MJ/person/day. In the year 2003 Canadians consumed 11.5 x 1018 joules of energy (page 10 of report ). From this, we know the technology factor is 100. That is, Canadians use nearly 100 times the biological needs of energy to sustain themselves at their technology level. Today’s technology experts are certainly energy hungry.

7. Consumption

Technology can mean about anything. Using a stick to dig a furrow for growing plants is a form a (agricultural) technology. Digging material from the ground, purifying it then forming it into sheets allows for light weight flying vehicles with aeronautic technology.
While we’ve experimented with many technologies, not all have made the grade. For instance, supersonic air transit has fallen to the wayside. So has human space travel. We just don’t consider these technologies worthwhile.

So, what technologies have made the grade? A quick look about most of use will result in a vision of cellular phones, automobiles and polyester. Given that higher technology is directly associated with energy usage, we can take a broader look by considering how we use energy. The following images show how we use energy today to support our technologies.

World Consumption

Canada’s Consumption

Canada

US Consumption

All images are from other researchers. Note that the image for world consumption does not indicate the loss due to energy conversion. The US Consumption image sets our energy loss to a value of 60%. That is, while we are consuming almost 500 exajoules, we only use about 40% or 200 exajoules. The remainder dissipates as waste heat.

The above does show how we use energy, but it is usage from recent years. Luckily, we increase our resource recovery rate as our consumption rate increased. Given this, the actual allocation is not an issue. But, consider when the energy demand exceeds the energy supply and we can’t recover sufficient resources to meet new or existing demand. At that time, we will have to choose what to let go, which technologies to leave behind. Are particle accelerators more important than toasters? Are cars in third world countries more important than airplane travel. These questions need to be addressed even though they won’t appear upon any news line. Will our technologies be ready when our energy demand outstrips supply?

8. Culture

World War II introduced humanity to a broad range of good and evil. It cemented the world as a collective entity. Highlighted the role of humans as great effectors. Some saw this and understood its association to the availability and use of energy. One of these was Prof Leslie White.
Prof White introduced quantitative metrics into the study of culture. His views on human survival vouchsafed;

  • Technology is an attempt to solve the problems of survival.
  • This attempt ultimately means capturing enough energy and diverting it for human needs.
  • Societies that capture more energy and use it more efficiently have an advantage over other societies.
  • Therefore, these different societies are more advanced in an evolutionary sense.

The third bullet above speaks directly to his expectation that a society’s culture followed a relationship of C = E T where;

  • C is culture
  • E is energy consumption
  • T is the efficiency of energy consumption

Interestingly Prof White assessed culture as a species wide characteristic.
Associating the success of a culture with its ability to consume energy may be accurate. Does it bode well for the future? As Kardashev noted, energy is the key to an expansive future. Can a culture adapt to less energy? Or we can keep finding new and better sources of harnessable energy.


9. Civilization’s Future

Our civilization’s future has many opportunities and constraints. Especially, while we remain fixed to Earth’s gravity well, we are limited to material that is available on Earth and anything that transcends from space in to our lower atmosphere. Given this, our future on this planet is constrained by the amount of available resources; in particular, energy. One can even scale a civilization by its energy availability as in the following table.

Civilization Types

Type 1-

a civilization that harnesses all the energy on one planet-

Type 2-

a civilization that harnesses all the energy from one star-

Type 3-

a civilization that harnesses all the energy from one galaxy-

Nikolai Kardashev

To push our civilization past Earth’s lower atmosphere, we need to maintain and extend our spacefaring capability. Our next step, after the International Space Station, is to encamp people upon the Moon’s surface. The encampment has people living self-sufficiently on the Moon, growing their food and leading productive lives. For our civilization, both energy and material availability greatly increase. Another benefit is that resource extraction on Earth will decrease thus lowering the ruination of our natural living space.With this, our civilization has made its first foray into off-planet resource acquisition.

A permanent settlement on the Earth’s Moon naturally extends the progress made with the International Space Station. An encampment at the Moon’s pole gives our civilization survival techniques and provides it with an opportunity to survey for resources, trial processing techniques and initiate trade practises.

Encampment Elements

The main function of the lunar encampment is to provide the necessities for human survival and to enable human advancement. Survival entails maintaining the human body with adequate nutrition and water together with air. These are the basis for powering the body’s locomotion and the brain’s processing. Workshops and laboratories put current technology at the fingertips of the residents. These allow the residents to continue the human traits of research and development. Starting here, people move to colonize the Moon.

Living Space – Functional Needs

  • Sleeping
  • Cleaning, self and clothing
  • Dining
  • Food Preparing
  • Communicating
  • Relaxing

The NASA Man-Systems Integration Standards (NASA-STD-3000) recommends a minimum habitable volume for mission durations of 4 months or longer of about 20 m3. Other sources suggest 120 m3 per person [Eckart].

Services – Functional Needs

  • Health Care
  • Data Analysis
  • Equipment Monitoring
  • Autotroph Production
  • Power Generation

Power – Functional Needs

  • Acquisition
  • Storage
  • Transportation / delivery
  • Provision
  • Metering

Interface – Pathways

  • Living space to/from surface
  • Living space to/from vehicle
  • Surface to/from vehicle

Transportation – Functional Needs

  • Encampment to/from local environs (100km radius)
  • Earth to/from encampment

The Lunar Outpost

A lunar encampment grows from continual deliveries from Earth. Robotic equipment prepares the site much as done with the ISS. People follow.

The south lunar pole is the most amenable to an encampment. Water can be extracted from the lunar regolith and used for rocket fuel and drinking. Perpetual sun and shade allows for the common heat transfer cycle and thus power generation. As well, perpetual shade implies a shield against the ever present solar radiation.

But radiation is a concern. It’s present for a 27.5x24h day then is absent for a 27.5x24h night. Radiation dose from cosmic rays is a constant figure of approximately 300 mSv/year. Current safety limit is 50 mSv/year. During solar flares, the energy may exceed 1 million electron volts and can deliver a fatal dose to lunar surface dwellers in a matter of hours.

Nevertheless, energy is the basis for existence. Its acquisition and utilization is paramount. The sun shines at a steady 1.365 kw/m2 when directly overhead. Photovoltaic cells can capture much. Batteries and fly wheels can store the energy for awhile. Standard electrical potential systems from Earth ensure technology ready to hand.

Harnessing this energy falls out from a few steps;

  • Build minimal human support
  • Engage people and expand infrastructure
  • Extend duration of human presence
  • Enable a continuous occupation over the full day / night cycle
  • Empower many day/night cycles
  • Ensure indeterminate self sufficiency, and
  • Outreach

Let’s break this out.

Step A: Build minimal human support
Launch ONE
This static base station has redundant communications, onboard processing capability and energy acquisition. We aim to have it function in perpetuity. Functionally, it will have monitors for solar intensity (to map into energy acquisition plans) and radiation (to assess biological needs). A co-located probe will test for water / ice. It has guaranteed power supply for a minimum of 30 days.
    Research items;

  • dust control,
  • energy storage,
  • temperature profile in regolith,
  • regolilth manipulation,
  • energy transfer via lasers,
  • micrometeorite detection and protection,
  • solar incidence in shade and full Sun.
    Commercial items

  • still images
Discussion
While this first lander has aims for perpetual capability, its location will likely be sub-optimal. We have two diametrically opposing needs; sunlight to power the energy source VS shade for protection and possible location of ice. Yet, with a direct sight line to Earth and a transponder, its usefulness as a backup system would endure.
Launch TWO
Locate the lander base for the Lunar Outpost in an area with perpetual shade. Gather ice, make water and separate into Hydrogen and Oxygen. Have a mobile rover that can precisely define the Lunar Outpost structural limits. Substantiate infrastructure with redundant communication and power generation ability.
    Research items

  • structural integrity of lava tubes,
  • relay laser energy
  • sensors (tactile, visual, chemical
  • water / ice divination
  • radiation monitoring
  • precision landing
    Commercial items

  • drive rover on lunar surface
Discussion
Local knowledge has accrued to allow for prediction of radiation exposure, ground tremors and meteorites. Mobile vehicles designate likely places for habitation modules, landing fields and support infrastructure.
Launch THREE
Begin build-up of station for human occupation. Location is based upon ease of access and current knowledge. Minimal radiation exposure such as a place of perpetual shade would be an advantage. This module will directly support human presence and as such will have a third generation power supply and communications system. –
    Research items

  • structural integration,
  • precision landing
  • sintering
  • berm construction
  • solar cell production
    Commercial items

  • transfer power to Earth
Discussion
Energy capture, retention and transmission is a significant factor for this launch.
Launch FOUR
This fourth launch delivers a module that joins with the third. The two constitute the work and living accommodations for future human visitors. However, to achieve this, this module must either land very near the module from Launch THREE or move afterward. Automatic joining and sealing the modules is necessary.
    Research items

  • module joining
  • robotics
  • self-sealing
  • closed system regeneration
  • water production
    Commercial items

  • advertisement on structure
Discussion
This is the embryonic Lunar Outpost. It is sufficiently robust as to readily allow temporary human occupation. Appreciably Earth infrastructure is in place for routine communications and transportation between the Earth and the Moon.
Launch FIVE
The Lunar Outpost is visited. Humans can finish the fit-out. A rudimentary landing field aids reception of vehicles from Earth and return of vehicles to Earth.
    Research items

  • locate optimal location for permanent settlement
  • monitor conditions at optimal location
    Commercial items

  • lunar accomodations
Discussion
The Lunar Outpost is now functioning and is human rated for brief stays, essentially a lunar inn. The facility will be used intermittently on an as-needed basis to facilitate the ensuing settlement. –
Step B: Engage People and Expand Infrastructure
Launch SIX-
The Lunar Outpost can support humans in a shirt sleeve environment for short durations (days). We now aim for a settlement that can accommodate a group of people for an indefinite period. This launch will confirm and lay out the settlement’s location.
    Research items

  • human factors
  • rovers
  • surface characteristics
    Commercial items

  • drive rovers from Earth
Discussion
With this stage, we return to exploring. Our experience and the installed sensors together with current audits will define the optimal location for the permanent settlement.
Launch SEVEN
What would you like to see?

References:

photo – NASA


10. Conclusion

In the above we introduced many aspects about civilizations. We considered some from the past. And we postulated some on the future. We could leave it to luck and hope for the best future to whichever civilization exists. Can you think of a better way than hoping? Care to plan with us to ensure best future possible?