Solar Power Potential with PRT Ron Swenson ATRA Santa Cruz 2006 November 18

not to mention the numerous farmers now employed in growing hay for horses.[B]oat builders would suffer and towline, whip, and harness makers would be left destitute. Martin van Buren, Governor of New York, April not to mention the numerous farmers now employed in growing hay for horses. Van Buren th President If canal boats are supplanted by railroads, serious unemployment will result …If canal boats are supplanted by railroads, serious unemployment will result … not to mention the numerous farmers now employed in growing hay for horses.[B]oat builders would suffer and towline, whip, and harness makers would be left destitute. Martin van Buren, Governor of New York, April not to mention the numerous farmers now employed in growing hay for horses. Van Buren th President If canal boats are supplanted by railroads, serious unemployment will result …If canal boats are supplanted by railroads, serious unemployment will result … The Elevator Speech Without solar, energy independence is pure rhetoric. Clinton’s New Generation Vehicle Arnold’s Hydrogen Highway GM’s Yellow Gas Cap Bush’s Cellulosic Ethanol. Only solar energy will do the job. Solar is sufficient to power high capacity PRT percent -- using only the system’s 4’ to 8’ right of way.

Global Warming over the Past Millennium Very rapidly we have entered uncharted territory… Over the 20 th century, … energy consumption increased sixteenfold. Global warming from the fossil fuel greenhouse became a major, and increasingly dominant, factor in climate change.

Can Solar Energy Replace Oil? We know the peak is coming … but what can we do about it?

American Consumers Do Understand

Net Production of Biomass in the USA

Swenson’s Law To avoid deprivation resulting from the exhaustion of non- renewable resources, humanity must employ conservation and renewable resource substitutes sufficient to match depletion.

Thomas Edison “I'd put my money on the sun and solar energy. What a source of power! I hope we don't have to wait 'til oil and coal run out before we tackle that.” ( )

Global Solar Energy Balance Solar Energy Input (TeraWatts)178,000 Reflected to Space Immediately53,000 Absorbed and Then Reflected as Heat82,000 Used to Evaporate Water (Weather)40,000 Captured by Plant Photosynthesis100 Total Energy Used by Human Society 13 Total Energy Used by US Society2.5 Total Human Food Energy 0.6

120,000 TW of solar energy received by the Earth

Total Area Required for a PV Power Plant to Produce the Total US Electrical Demand

Solar on Rail

SkyTran Solar Solar SkyTran, with aesthetics emphasis and added power at stations

30 mph, operating speed x 2 sec (vehicle interval) = 88 ft between vehicles = 60 vehicles/mi, separated by interval specified x 2 operating speed = 120 kw needed in a mile stretch 10 hrs at peak operation equivalent ÷ 4 hrs of peak sun equivalent (Coast = 4, Desert = 6) = 2.5 solar factor 120 x 2.5 = 300 kW/mile x $6.00 /watt $1,800,000 /mi 16 watts / sq ft, SunPower, most efficient on market 3.5 ft wide solar panel to meet requirement Calculate Solar size, cost per Mile

PV: The Growth Industry Oil declines at 4%/yr PV increases at 50%/yr Peak

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