energy economics relating to space solar power · pdf fileenergy economics relating to space...
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![Page 1: Energy Economics Relating to Space Solar Power · PDF fileEnergy Economics Relating to Space Solar Power Gail Tverberg, Director of Energy Economics, Space Solar Power Institute, (407)443-0505,](https://reader031.vdocuments.mx/reader031/viewer/2022030412/5a9e404d7f8b9a21488dcb0d/html5/thumbnails/1.jpg)
Energy Economics Relating to Space Solar Power
Gail Tverberg, Director of Energy Economics, Space Solar Power Institute, (407)443-0505, [email protected]
EP13 Session 4B: Solar Power Generation
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Outline
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Energy use underlies our economy We are reaching limits because of our energy usage How global space solar fits in
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Energy use underlies our economy
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Energy use underlies our economy
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Energy makes the world go around
Source: Jewishworldreview.com
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Energy allows us to transform raw materials into finished products
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Extracting raw materials requires energy Transport requires energy Services require energy
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Increased energy use is associated with increasing prosperity
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Source: Based on 2012 BP Statistical Review of World Energy and USDA Economic Research Data
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Population grows as fuel use grows
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Fuels allow more food, better medicine and sanitation
Source: US Census Bureau; Vaclav Smil, Energy Transitions: History, Requirements, Prospects.
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We are reaching limits because of our energy usage
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Cost Limit
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Source: Fossil fuel cost from EIA Table Annual Energy Review Tables 3.2 and 3.9, wages from BEA Table 2.1.
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Pollution limits: Air, water and CO2
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Fresh water limits
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Coal-fired electric, base-load gas, nuclear-electric plants Biofuels
Source: BikingIllinois.com
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Quality of deposits - especially oil - is declining
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Extract the cheapest first Move on to the more
expensive
Always seems to be more! True for fossil fuels,
metals, water Reserves increase Cost of extraction
increases Producers need high oil
prices to be profitable
Cheapest to extract
Start Here
More expensive
Most expensive
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High oil prices lead to RECESSION
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Economist James Hamilton has shown that oil price spikes connected with 10 out of 11 recent US recessions!
Source: Based on BP 2012 Statistical Review of World Energy data
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High oil prices lead to depressed wages
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Source: 2012 BP Statistical Review of World Energy, BEA Private Industry Wages, and CPI-Urban from BLS.
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How current limits may manifest themselves – My view, based on Peter Turchin’s analysis
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CO2 Level Air pollution
Disease Susceptibility
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Governments already having trouble collecting enough taxes
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Source: Based on US Bureau of Economic Analysis data.
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Current approach is not working
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New renewables total 2% in 2011
Source: Based on 2012 BP Review of World Energy.
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Characteristics of Needed Replacement Fuels
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Inexpensive Cheaper than today’s fuels
Uses resources sparingly Not polluting (CO2 and other) Doesn’t add hidden costs
Intermittency If no liquids: Quick changeover to all-electric vehicles
Available in very large quantities Available with little government cost Available now
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How global space solar fits in
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A New Alternative – Space Solar Power
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SSP - A few characteristics
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In geosynchronous orbit Put together by robots Put into space by reusable rockets Electricity beamed to earth by microwaves
Very large antenna on earth receives the power Crops can grow under antenna
SSP would be available 99.3% of the time Outages at midnight, near spring, fall equinoxes Dispatchable when available
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SSP project underway in Japan
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Sources: bloomberg.com/apps/news?pid=newsarchive&sid=aF3XI.TvlsJk, scientificamerican.com/article.cfm?id=land-of-the-rising-sun-power-japan-2009-11&sc=DD_20091110
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Huge cost reductions seem possible with reusable rockets; experience
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Top line – Costs of publicly financed flights Lower line – Costs of privately financed flights
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Goal: Uses resources sparingly
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SSP generation uses no water Uses high purity silicon very sparingly
PV only 1% as thick as conventional PV can be used Doesn’t need to withstand earth’s weather
Capacity factor is 99.3% vs 18% on ground in US 50% of PV electrical output would get onto earth’s power grid Combined effect: silicon goes 275 times as far
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Goal: Not Polluting
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Pollution minimized by low resource use No CO2 from ongoing operations Microwaves will meet existing regulations
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Goal: Inexpensive
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Goal of Japanese group is 9 cents per kWh With development, cost should be lower yet With low-cost electricity, can make liquid fuels If truly low-cost, other countries would copy
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Goal: Available in very large quantities
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If low-cost, much greater chance of ramp-up Possibility of making liquid fuel, using electricity
Example 1: Ammonia available using water, air and electricity Have made liquid ammonia for 50 years for farming
Also move it in pipelines (http://www.nh3fuelassociation.org)
Example 2: Isobutanol Created using water, air, carbon source, and electricity
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Goal: Doesn’t add hidden costs
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Total cost is what is important Intermittency characteristic of wind, ground solar
Hidden costs: Upgrades to grid design and regulation Longer distance grid transmission Electricity storage costs Increases cost per kWh of fossil fuel electricity
If we have low-cost electricity, we can make liquid fuels Less abrupt transition than to plug-in electric alone
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Goal: Available with Little Government Cost
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Japan’s SSP project cost ~ $1 billion per year Public/private congressionally chartered corporation
could provide needed government support Comsat Corp., chartered in 1962, opened space for
communication satellites. Communication satellites now a $250+ billion/year industry
Need similar act for SSP
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Available now
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Unfortunately, no. But neither is any other alternative that might meet these goals
Long lead time expected Reason to start now
Businesses will likely need to take lead First step - enabling legislation similar to 1962 Comsat Act
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Additional information
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Darel Preble Executive Director, Space Solar Power Institute www.solarsat.org [email protected] (404) 431-4754 (cell)
Gail Tverberg Director of Energy Economics, Space Solar Power Institute OurFiniteWorld.com [email protected] (407) 443-0505 (cell)
Space Solar Power is a 501(c)3 educational non-profit