Energy Resources. Geothermal Energy: A Free Lunch?. Environmental Problems of Geothermal Energy It is Finite Heat Sources Can Be Exhausted (Geysers, California) Sulfur Emissions Disposal of Mineralized Brines . Technical Problems of Geothermal Energy Corrosion Mineral Deposition in Pipes
Environmental Problems of Geothermal Energy
Technical Problems of Geothermal Energy
Typical Steam Power Plant
Geothermal Power Plant
Actual achieved efficiencies
A hydrocarbon molecule
What organisms make these?
Procrastination pays off Now
“America is sitting on top of a super massive 200 billion barrel Oil Field that could potentially make America Energy Independent and until now has largely gone unnoticed. Thanks to new technology the Bakken Formation in North Dakota could boost America’s Oil reserves by an incredible 10 times, giving western economies the trump card against OPEC’s short squeeze on oil supply and making Iranian and Venezuelan threats of disrupted supply irrelevant” (Next Energy News, 13 February 2008)
The internal-combustion engine used for automobiles is a fragile device compared with other prime movers -- even compared with the internal combustion engines used for diesel- electric locomotives that have been known to go over a million miles without mechanical overhauling.
... the energy-system efficiency of the motor car with petroleum motor fuel is, thus, 5 percent ... no one is proud of this accomplishment -- least of all the automotive-design engineers ... The trouble is, every time the design engineer manages to save a few BTU it is more than spent answering the clamor for softer tires, for radio, for better heaters, more lights, cigarette lighters and possibly even air conditioning.
Histories written a few centuries hence may describe the United States as a nation of such extraordinary technologic virility that we succeeded in finding ways of dissipating our natural wealth far more rapidly than any other nation. At any rate, we are having a wonderful time doing it. From the discussions in the earlier chapters of this book it is clear that the problem of energy for the United States is not one of the dim future. It is upon us now.
Our imports of petroleum are small but each year they become larger. By 1960 they are likely to be quite substantial. By 1970 they will almost certainly be huge -- if foreign oil is still available then in sufficient quantity... This tiny period of earth's life, when we are consuming its stored riches, is nearly over ... Fortunately for us there is still time for fundamental research [on alternative energy sources]. But not too much time.
Eugene Ayres and Charles A Scarlott, 1952; Energy Sources -- The Wealth of the World, McGraw-Hill, 344p.