alt.energy.renewable

calderhome@yahoo.com wrote:
> "The prospect of growing algae to make biodiesel has more positive
> potential than making ethanol from switchgrass, but you are still
> stuck with the fact that algae need solar energy to turn carbon
> dioxide into fuel. To make biodiesel, algae are used as organic solar
> panels which output oil instead of electricity. Research reports brag
> that algae can produces 15 times more fuel per acre of land than
> growing corn for ethanol, but that still means we would need
> approximately 30 million acres of algae ponds in the USA to meet 100%
> of our projected automotive fuel usage by the year 2022.

Algae doesn't have to be grown on land. It'll grow in salt water.
The world has a lot more salt water and sunlight than needed.

Algae doesn't have to meet 100% of our projected fuel usage by 2022
to be useful. It could provide just a part with other resources doing
their parts.

Anthony