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I bought a (24-thread) T1 because it was *cheap* for the specs, and because I can use all that parallelism for my Web server ( http://mirror-uk-rb1.gallery.hd.org/ ) and stuff it is doing on the backend, and it is *lovely*.

I also use various flavours of Intel chips including Core Duos in the MacBook that I'm typing on now and in my new low-power Linux laptop that's replaced 5 old Solaris servers ( http://www.earth.org.uk/low-power-laptop.html ), but I have to say again that the T1/Niagara is lovely to write threaded code for (eg in Java).

Rgds

Damon

I'm going through the exercise this month of replacing a whole slew of my always-on Internet servers at home (HTTP, SMTP, DNS, NTP) on machines going back long enough to still be running SunOS 4.1.3_U1 in one case, with a single Linux laptop. Current power consumption is ~700W. Target power consumption for the new system So, it is doable and worth doing financially, and I don't have to pay the 3x extra cost right now to remove the heat with aircon (if I did, I could pay for the solar panels too power it even in midwinter too).

See http://www.earth.org.uk/low-power-laptop.html

Rgds

Damon

I've just set up a tiny pilot project at home in the UK:

http://www.earth.org.uk/solar-PV-pilot-summer-2007 .html

The manufacturer's warranty on the solar panel is 25 years IIRC.

(The numbers I have for energy payback for the cell/equipment manufacture is around 6 years, BTW, see: http://eprints.ucl.ac.uk/archive/00002642/ )

Rgds

Damon