Oil, Coal, Corn, Solar or Hydrogen?
601243
Nuclear, beyond any shadow of a doubt. \n\nThe US has appreciable Uranium reserves itself, and major Uranium producing nations such as Australia are already favored trading partners and stable western democracies.\n\nForget corn. It takes more oil to produce ethanol than the ethanol replaces. I. other words using corn for energy means we have to use MORE oil. We currently produce corn ethanol as an economic subsidy for corn growers. If we didn't make ethanol we would have to dump that corn in the ocean. But Corn ethanol is NOT a fuel source. See the first article below.\n\nHydrogen is iffy. We can only obtain hydrogen by splitting water using massive amounts of electricity. That electricity has to be obtained using normal power stations, usually coal. As a result hydrogen is like ethanol: it takes far more fossil fuel to produce than it actually replaces. That makes it a possible oil substitute but very unwise WRT greenhouse gas emissions unless coupled with lots of nuclear power stations.\n\nSolar and wind are never going to be major players. There simply isn't enough land available to make more than a minor contribution and because the supplies are erratic we would still need other power stations to make up the regular shortfalls. See the second article below.\n\nNucelar is the only real solution.
1183876
Solar energy is the best energy in my view .With the help of this solar energy we can use solar cookers,solar lamps,solar geasers\nsolar heaters, solar refregirators etc
1114274
Tough question, however Solar and Wind are viable sources of energy where available.  BioMass and utilization of human waste are also viable sources of future energy.  There's some speculation about technology to harness the energy contained in Ocean Water (currents) though I am not an engineer and don't understand it at all.  Finally, eliminating wastefulness and extending the usefulness of exsiting fuel types will assure at least in the short term enough for all (this is particularly aimed at the USA as the largest consumer of existing fuels per capata in the World, the question is why)
254384
Tell them to bring in working models of "alternate forms of energy".  It might be a little tricky because some of the stuff is flamable.....but I remember having this fair in third grade and it was a great learning experience.  One kid brought in a giant 5 gallon jar half full of pig crap and then showed how it emits gas that could then be used in a combustion engine.  Amazing.  But think...obviously solar...there's got to be the electric type motors....models of combustion engines are going to come in using the corn oil approach etc.
867052
Coal, Silver, Gold, Oil, Uranium
27592
Fossil fuel is the primary alternative due to price.  As the price of fossil fuel rises, a number of alternatives become more attractive.  Wind energy is an option, but it is not likely to be the main alternative.  Nuclear has a long history for power plants, but very limited short term potential for other applications.  Solar holds tremendous potential.  Gas to liquid technology and coal to liquid technologies are the most likely alternatives in the 5 to 10 year range.  Hybrid cars will help for a while, and in 15 years hydrogen fuel cell cars will start to have a MAJOR impact.
423132
It all depends on the area where you live. Like people in Florida would benefit most from Solar energy. People living near dams would benefit more form water energy. Wind energy would benefit people who live in the mountains. It all has to do with the geography of the land. But dealing with fuel options... I'm stumped!
406611
Either hydrogen or ethanol.  Research is being done at this moment to find safe, cheap, and efficient ways to bring these alternatives to the general public (of the US).  Nuclear power isn't very practical when it comes to cars, and it's proven to be pretty darned dangerous when it comes to powering homes and businesses.  Solar power is another option, but so far, it's not economical. (And for the people who say that we can't use solar power because the sun is running out, don't you realize that when the sun runs out, so do we?  Until then, the solar power is a very real - and potent - source of energy.)
388410
Alternative forms of energy, some which can be used today. Solar, Wind, Water etc.
91379
Oil followed by coal.
1185253
One of the realities of the energy debate is that it really does take a portfolio of technologies.  Nuclear clearly has a part to play, as does wind, solar and other renewables.  Coal certainly isn't going away anytime soon either.  \nThere simply aren't enough resources to cost effectively build just one kind of power generation plant for all the world's needs.\nthe National Renewable Energy Laboratory has some great discussions about this if you're interested enough to find them.
63596
Nuclear, Coal, Hydro, Aero, Gas
117670
A method for making really cheap solarcells from sand and a way to transport the elctricity the generate without any loss. The amount of energy that falls on the Sahara during a year could cover the worlds entire energy needs 50 times over even using standard photocells that convert only a few percent of the light to electricity. With such an abundant and cheap energy source we could replace ALL other energysources as electricity can be converted to any other form of energy and fuel. We could even keep gasoline cars because gasoline could be manufactured from CO2 (from the air) and hydrogen (from water). There would be alot less pollution if I could invent these things.
561560
lets just start using hydrogen and solar energy....
465476
Corn  or vegetable oil
413368
Energy demand will keep on increasing. So there will be substitute sources of energy like solar cell and water. A lot of research is going on to make this alternate sources working and cheaper than the conventional ones like mineral fuels.
507799
Good Project:\n\nThere have been different attempts all need to be developed yet.\n\nThe attempts include:\n1.Solar energy through silicon cells.\nThis is of more importance in hot regions with maximum sun shine.\n\n2.Ethanol by way of combustion.\nStill an economical method is to be discovered for extracting ethnol from sugarcane.\n\n3.Hydrogen by combustion.\nHydrogen is to be obtained by decomposition of water.\n\n4. Nuclear energy at small scale.\nSo far techniques on domastic production have not been successful.