Updated: 11/24/2005; 11:21:35 PM.

Future energy
Renewables, fuel cells, hydrogen, and efficiency


daily link  Tuesday, September 21, 2004


BBC NEWS on distributed micropower: Nice review of various small-scale technologies.  Interesting figure: "ground source heat pumps extract stored solar energy from the ground to run a home's central heating, and can cost as little as an oil-fired boiler to install. Widely used in the rural US, they produce three or four units of heat for every unit of electricity they use, and can be reversed to provide cooling."  I wonder if new materials for the underground piping can make the energy transfer more efficient, reducing the installation costs of these heat pumps.  9:57:51 AM  permalink  

 
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Copyright 2005 © Ken Novak.
Last update: 11/24/2005; 11:21:35 PM.