Alternative Fuel Sources
What Is Alternative Fuel?
Alternative fuel sources offer the promise of an energy independent future for countries like the United
States which now depend heavily on oil - much of which must be imported. Oil, natural gas and coal are
often called "fossil fuels," because their original source is mostly plant and animal remains left in the
ground millions of years ago.
This section of our website answers the question what is alternative fuel and provides a basic
introduction to alternative fuel sources you may not have heard much about before.
These alternative fuels can be used in dozens - in fact, hundreds - of ways to promote energy
independence without depleting fossil fuel resources. These fuels are also generally cleaner than fossil fuels,
meaning there are fewer wastes, by-products, pollutants and greenhouse gases seeping into the ground or the
atmosphere, possibly causing environmental damage and climate change.
Biodiesel - Biodiesel offers some interesting possibilities as an alternative
fuel source because it can be made from certain types of vegetable oils. Cars can be converted to burn biodiesel fuel.
Bioalcohol - Four types of alcohol can be used as a alternative fuel sources. They are
methanol, propanol, ethanol, and butanol. Bioalcohols are mostly made from corn, and are already being used in various ways in cars and
other vehicles.
Hydrogen fuel cells- The potential for this type of alternative fuel is tremendous because it can be
used to not just vehicles, but almost anything that uses batteries: hand held devices, portable
generators and more. See hydrogen fuel cells.
Biomass - Biomass fuels come from a wide variety of organic materials from plants and
animals. Nearly any organic waste is considered to be "biomass:" wood, crops, manure, and
even the organic components of everyday trash.
Algae Based Fuel - Algae, that scummy-looking green gunk that grows on the top of ponds, just
might be one of the miracle alternative fuel sources of the future. See algae based fuels.
Biogas - Have you every heard of "swamp gas?" It's just one of the types of non-fossil methane which
may help power the planet in the future. Non-fossil methane is also called biogas, which forms in swamps,
marshes and landfills. Sewage sludge and manure are sources of biogas too.
Grassoline - Scientists have been working on alternative fuels that can actually be made from a type of
grass known as switchgrass. Switchgrass can be converted into ethanol in the lab, and there is a
possibility that this discovery will lead to new breeds of grass capable of replacing corn as the primary source of
bioalcohol. Click on grassoline.
Flow batteries chemically stored electricity - We're all familiar with how batteries
work. But new types of batteries, called flow batteries, work differently from the traditional lead acid types that have been around
for decades. A flow battery uses chemicals, charged with electricity, that are drained into storage
tanks. This energy is held in reserve in the storage tank until needed. The flow of the battery is then
reversed, and the electricity can be used as an alternative power source.
Research into alternative fuel sources is ongoing. In addition to the sources mentioned above,
there is progress made being made into alternative energy sources like solar wind power.
The possibilities seem endless, and alternative fuel sources truly do hold the key to a
cleaner, greener future using renewable energy for all of us.

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