Solar panel efficency
in [Design]
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From: Jim Thompson on 31 May 2010 11:38 On Sun, 30 May 2010 17:21:25 -0700, Tim Wescott <tim(a)seemywebsite.now> wrote: >On 05/30/2010 03:16 PM, Spehro Pefhany wrote: [snip] >> >> The usual efficiency criteria for ground-based applications is $/peak >> watt. > >And I _still_ think that the criteria should be the net energy return >over the whole lifetime of the product -- mean _after_ you take into >consideration the entire extract/manufacture/install/dispose cycle of >the panel into account, _including_ the trees you'll need to chop down >to make room for them and some projections of the proportion of panels >that will be retired early due to defects, obsolescence, vandalism, >remodeling, and just plain accident. > >Because I think that in principal the whole idea of renewable energy is >a Really Good Thing, but it seems to be in the hands of a bunch of >poly-anna ditzle-brains who turn off all thought processes when >confronted by anything "green", and who are opposed by a bunch of >mean-spirited ditzle-brains who let their thought processes get turned >off by bibles long ago. Huh? I think most opposition to "green" energy solutions lies in only two camps... (1) NIMBY's (2) Those of us who want green, but not at the cost of immediate turn-off of existing energy sources... Obamanation-style :-( (Bible thumpers don't think, period.) ...Jim Thompson -- | James E.Thompson, CTO | mens | | Analog Innovations, Inc. | et | | Analog/Mixed-Signal ASIC's and Discrete Systems | manus | | Phoenix, Arizona 85048 Skype: Contacts Only | | | Voice:(480)460-2350 Fax: Available upon request | Brass Rat | | E-mail Icon at http://www.analog-innovations.com | 1962 | The only thing bipartisan in this country is hypocrisy
From: Tim Williams on 31 May 2010 12:00 "Spehro Pefhany" <speffSNIP(a)interlogDOTyou.knowwhat> wrote in message news:l3g706d8ib7rluv8bj5pe9cjga4pn888cb(a)4ax.com... > It might almost sort-of make sense if you wanted some particular color > of light exclusively. Visible-light-band VFD, with 10% efficiency? Although considering the input is generally white, it would be more like a thermal powered VFD. Tim -- Deep Friar: a very philosophical monk. Website: http://webpages.charter.net/dawill/tmoranwms
From: Tim Williams on 31 May 2010 12:00 "MooseFET" <kensmith(a)rahul.net> wrote in message news:017df0a3-b47f-45d9-ab4b-8309ad35fb14(a)q36g2000prg.googlegroups.com... > Thats when you are supposed to go to bed and sleep. It is nicely > arranged so the world is dark at bed time. Strange, at my bed time it's 5:00am. Tim -- Deep Friar: a very philosophical monk. Website: http://webpages.charter.net/dawill/tmoranwms
From: krw on 31 May 2010 12:32 On Mon, 31 May 2010 08:38:42 -0700, Jim Thompson <To-Email-Use-The-Envelope-Icon(a)On-My-Web-Site.com> wrote: >On Sun, 30 May 2010 17:21:25 -0700, Tim Wescott <tim(a)seemywebsite.now> >wrote: > >>On 05/30/2010 03:16 PM, Spehro Pefhany wrote: >[snip] >>> >>> The usual efficiency criteria for ground-based applications is $/peak >>> watt. >> >>And I _still_ think that the criteria should be the net energy return >>over the whole lifetime of the product -- mean _after_ you take into >>consideration the entire extract/manufacture/install/dispose cycle of >>the panel into account, _including_ the trees you'll need to chop down >>to make room for them and some projections of the proportion of panels >>that will be retired early due to defects, obsolescence, vandalism, >>remodeling, and just plain accident. >> >>Because I think that in principal the whole idea of renewable energy is >>a Really Good Thing, but it seems to be in the hands of a bunch of >>poly-anna ditzle-brains who turn off all thought processes when >>confronted by anything "green", and who are opposed by a bunch of >>mean-spirited ditzle-brains who let their thought processes get turned >>off by bibles long ago. > >Huh? I think most opposition to "green" energy solutions lies in only >two camps... > >(1) NIMBY's > >(2) Those of us who want green, but not at the cost of immediate >turn-off of existing energy sources... Obamanation-style :-( (2a) Those of us who know that if there is a green solution it won't require government largesse to distort the market for it. (2b) Those of us who don't want to live in the stone age. >(Bible thumpers don't think, period.) Dingbat from BC, is that you?
From: D Yuniskis on 31 May 2010 13:41
Hi Tim, Tim Williams wrote: > "MooseFET" <kensmith(a)rahul.net> wrote in message > news:017df0a3-b47f-45d9-ab4b-8309ad35fb14(a)q36g2000prg.googlegroups.com... >> Thats when you are supposed to go to bed and sleep. It is nicely >> arranged so the world is dark at bed time. > > Strange, at my bed time it's 5:00am. Yeah, I seem to have a similar problem! Perhaps I just need to relocate half a dozen timezones further west?? :< |