Global warming?
in [Design]
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From: Paul Keinanen on 12 Jan 2010 11:28 On Tue, 12 Jan 2010 07:20:09 -0800, John Larkin <jjlarkin(a)highNOTlandTHIStechnologyPART.com> wrote: >Solar may make some sense, but individual rooftop solar makes a lot >less. The economy of scale is all wrong. Individual solar cells make sense mainly when used to run the air conditioning. In this case, both the production and demand are quite well synchronized.
From: Jim Yanik on 12 Jan 2010 11:39 Paul Keinanen <keinanen(a)sci.fi> wrote in news:dm8pk5t615bhqhhhn3h920dbdvcus7k43h(a)4ax.com: > On Tue, 12 Jan 2010 07:20:09 -0800, John Larkin ><jjlarkin(a)highNOTlandTHIStechnologyPART.com> wrote: > >>Solar may make some sense, but individual rooftop solar makes a lot >>less. The economy of scale is all wrong. rooftop solar is harder to maintain. How many homeowners are going to climb up there every month (or more often)to wash the dust and birdcrap off the panels? Heck,many people wash their cars once a week. > > Individual solar cells make sense mainly when used to run the air > conditioning. In this case, both the production and demand are quite > well synchronized. > > in some places,you also need AC at night. -- Jim Yanik jyanik at localnet dot com
From: Jim Thompson on 12 Jan 2010 11:47 On Tue, 12 Jan 2010 18:28:41 +0200, Paul Keinanen <keinanen(a)sci.fi> wrote: >On Tue, 12 Jan 2010 07:20:09 -0800, John Larkin ><jjlarkin(a)highNOTlandTHIStechnologyPART.com> wrote: > >>Solar may make some sense, but individual rooftop solar makes a lot >>less. The economy of scale is all wrong. > >Individual solar cells make sense mainly when used to run the air >conditioning. In this case, both the production and demand are quite >well synchronized. > Can you actually generate enough power to run A/C, or must you still draw from the power company? ...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 | I love to cook with wine. Sometimes I even put it in the food.
From: Jim Thompson on 12 Jan 2010 11:48 On Tue, 12 Jan 2010 10:39:12 -0600, Jim Yanik <jyanik(a)abuse.gov> wrote: >Paul Keinanen <keinanen(a)sci.fi> wrote in >news:dm8pk5t615bhqhhhn3h920dbdvcus7k43h(a)4ax.com: > >> On Tue, 12 Jan 2010 07:20:09 -0800, John Larkin >><jjlarkin(a)highNOTlandTHIStechnologyPART.com> wrote: >> >>>Solar may make some sense, but individual rooftop solar makes a lot >>>less. The economy of scale is all wrong. > >rooftop solar is harder to maintain. >How many homeowners are going to climb up there every month (or more >often)to wash the dust and birdcrap off the panels? >Heck,many people wash their cars once a week. >> >> Individual solar cells make sense mainly when used to run the air >> conditioning. In this case, both the production and demand are quite >> well synchronized. >> >> > >in some places,you also need AC at night. Oh, gee! I didn't know that ;-) ...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 | I love to cook with wine. Sometimes I even put it in the food.
From: krw on 12 Jan 2010 20:43
On Mon, 11 Jan 2010 16:44:08 -0800, John Larkin <jjlarkin(a)highNOTlandTHIStechnologyPART.com> wrote: >On Mon, 11 Jan 2010 08:10:03 -0600, Jim Yanik <jyanik(a)abuse.gov> >wrote: > >>Paul Keinanen <keinanen(a)sci.fi> wrote in >>news:etblk55jmdknk4eh747a38sjd58m73fg1f(a)4ax.com: >> >> >>> The cost of wind energy is not just the cost of wind turbines, but >>> there are also a lot of infrastructural costs. >>> >>> >> >>Like solar panels,they still need maintenance. > >I see lots of panels bolted to roofs. What happens when the roof needs >to be replaced? From what I've seen, they get trashed. The systems hadn't been used for years anyway. >The solar panels look like great wind sails, too. Yup. |