Rune Allnor wrote:

> On 23 Nov, 02:59, Erik de Castro Lopo <er...@mega-nerd.com> wrote:
>
> > Iceland currently generates about 25% of its energy needs from
> > geothermal, so it seems that this is a proven technology.
>
> The problem with geothermal sources is that they only work
> in geographic areas where the eart's crust is thin, and the
> hot materials are easily accessible. Once you need to drill
> very deep to get to the heat, or transport the energy over
> long distances, the economy breaks down.

Well Iceland is one, and apparently Australia is another.

Erik
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Erik de Castro Lopo
http://www.mega-nerd.com/