Solar electric is becoming a little more efficient. Sharp has a 185 watt panels that has cells w/ an efficiency of 17.48% (the whole module is 14.23% though) (yeah, I'm a solar electric installer). Do any of you consider geothermal for heating and cooling??? Relies on the constant temperature(about 55 degreesF in NJ) that exists just a few feet in the ground. In terms of energy input, the systems advertise that they are 300% efficient. --- Hakan Falk <[EMAIL PROTECTED]> wrote: > > > > >David, > > > >The last 20 years I bought an AC unit per year on > average here in Spain, > >always reversible to heat pump. I am a little bit > lazy and found a very > >good dimensioning method. Instead of calculating, I > have used the known > >margin of error in existing methods. > > > >I ask the sales person what he recommends. He will > do some sort of > >calculation and look in tables, then he would look > at me with "the expert > >look" and suggest for example 3,000 watt (never > smaller), then I will look > >equally seriously and buy the 1,000 Watt. He will > always say that in that > >case he cannot guarantee that it will work and I > will always reply that it > >doesn't matter. > > > >In the 20 cases I have never had a capacity > problem. I had some problems > >with functionality, but that is expected with AC > units who have an average > >life span of 8 years (rotary compressors). > > > >Hakan > > > > > >At 20:15 12/12/2003, you wrote: > > >Hi Hakan, > > > > > >I'm not familiar with any companies succeeding in > this field. (except > > >special projects companies working on gov't > subsidized systems) > > > > > >I would like to see solar ac find some > economically feasible > > >markets. Will take some good engineering and > creative thinking (to find > > >the right market) > > > > > >David B. > > > > > > > > > > >Yahoo! Groups Sponsor > >ADVERTISEMENT > ><http://rd.yahoo.com/SIG=12ck43qab/M=267637.4116730.5333196.1261774/D=egroupweb/S=1705083307:HM/EXP=1071360354/A=1853618/R=0/*http://www.netflix.com/Default?mqso=60178338&partid=4116730> > >click here > > > >[] > > > > > >To unsubscribe from this group, send an email to: > > [EMAIL PROTECTED] > >Archives of solar-ac messages are at: > > > ><http://groups.yahoo.com/group/solar-ac/messages>http://groups.yahoo.com/group/solar-ac/messages > > > > > >Your use of Yahoo! Groups is subject to the > ><http://docs.yahoo.com/info/terms/>Yahoo! Terms of > Service. > > >
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