On Mon, May 19, 2008 at 2:31 PM, BillK <<a href="mailto:pharos@gmail.com">pharos@gmail.com</a>> wrote:<br><div class="gmail_quote"><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
Solar power is not just proven technology. Kurzweil claims it is on an<br>
exponential path heading for a solar singularity within 20 years.<br>
<<a href="http://www.livescience.com/environment/080219-kurzweil-solar.html" target="_blank">http://www.livescience.com/environment/080219-kurzweil-solar.html</a>><br>
Quote:<br>
Now futurist and inventor Ray Kurzweil is part of distinguished panel<br>
of engineers that says solar power will scale up to produce all the<br>
energy needs of Earth's people in 20 years.<br>
There is 10,000 times more sunlight than we need to meet 100 percent<br>
of our energy needs, he says, and the technology needed for collecting<br>
and storing it is about to emerge as the field of solar energy is<br>
going to advance exponentially in accordance with Kurzweil's Law of<br>
Accelerating Returns.</blockquote><div><br>That's awesome if it occurs. But just like the original Moore's Law, you never know when they'll hit technical or physical limitations.<br> </div><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
And Google is investing hundreds of millions of dollars in wind and<br>
solar power for it's server farms.<br>
<<a href="http://www.livescience.com/environment/071128-ap-green-google.html" target="_blank">http://www.livescience.com/environment/071128-ap-green-google.html</a>></blockquote><div><br>Thanks for linking to this. My appreciation for Google never stops increasing. One gigawatt is a lot of power, though the article wasn't too specific. Is Google planning on generating *all* of it's power needs plus excess to sell to others?<br>
</div><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">And then there's this guy in California building multi-rotor miniature<br>
windmills that can power your house (while the wind blows).<br>
<<a href="http://www.popsci.com/scitech/article/2008-05/ten-times-turbine" target="_blank">http://www.popsci.com/scitech/article/2008-05/ten-times-turbine</a>><br>
Quote:<br>
Today's largest wind farms are the size of small towns, made up of<br>
turbines 30 stories tall with blades the size of 747 wings. Those<br>
behemoths produce a great deal of power, but manufacturing,<br>
transporting, and installing them is both expensive and difficult, and<br>
back orders are common as the industry grows by more than 40 percent a<br>
year. The solution, says inventor Doug Selsam, is to think smaller:<br>
Capture more power with less material by putting 2, 10, someday dozens<br>
of smaller rotors on the same shaft linked to the same generator.</blockquote><div><br>Yeah, I've already seen this. But it's one of those articles that make me wonder, most of it is hype. It's an article about a prototype so it's sort of wait and see. <br>
<br></div><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
Alternative energy is just starting. You ain't seen nuthin' yet!</blockquote><div><br>I hope so. But I think one thing to consider is that the population is also increasing exponentially, and so are living standards and the amount of energy used per capita.<br>
<br>Kevin<br></div></div><br>