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7 comments
Active Contributor

Join Date: Mar 2008
Location: Saltillo Coahuila
Posts: 14

mixed energy supply in home

04/13/2008 1:37 PM

I need to know wich devices exists to install in my house with the object to reduce de use of the normal electricity supply and mix with devices like eolic or solar to become a greener home. I want to be a promotor of the sustentability development.

Miguel Angel De la Torre

artedigital@prodigy.net.mx

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Miguel Angel De la Torre
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Pathfinder Tags: suteinable use or energy
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Power-User

Join Date: Jan 2007
Location: UK S.Northants
Posts: 389
Good Answers: 12
#1

Re: mixed energy supply in home

04/13/2008 3:40 PM

do you have a gas supply? Use a conventional kettle.

Guru

Join Date: May 2006
Location: Placerville, CA (38° 45N, 120° 47'W)
Posts: 1530
Good Answers: 42
#2

Re: mixed energy supply in home

04/14/2008 12:52 AM

The first is to replace any incandescent lamps with compact fluorescents or LED lamps.

¿Que significa 'eolic'? No conozco palabra semejante ni en ingles ni español.

Dick

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Active Contributor

Join Date: Mar 2008
Location: Saltillo Coahuila
Posts: 14
#7
In reply to #2

Re: mixed energy supply in home

04/18/2008 10:15 AM

http://www.geocities.com/cescant

/store.altenergystore.com/Wind-Systems/Wind-Turbines-Electric/c390/?source=adwordsEolicos&gclid=CLyC5NDl5JICFQWiggodNm8n4g

Wind Turbines (Electric)

Our wide variety of turbines can meet your needs from providing power to a small cabin up to a medium sized home or farm. You'll find turbines from manufacturers such as Bergey and Southwest Wind Power. The Air Breeze and Air X turbines produce about 20-30 kwh per month in average wind speeds of 10-12 mph. The Bergey XL.1 will deliver about 130-175 kwh per month at the same wind speeds. And the Skystream turbine will produce about 200-400 kwh per month at 10-12 mph wind speeds.

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Miguel Angel De la Torre
Power-User

Join Date: Apr 2007
Posts: 238
Good Answers: 7
#3

Re: mixed energy supply in home

04/14/2008 2:10 AM

Read this book.

Heating, Cooling, Lighting: Design Methods for Architects, 2nd Edition
Norbert Lechner
ISBN: 978-0-471-24143-0
Hardcover
640 pages

December 2000

Taking advantage of warmth and light from the sun, cooling from shade trees and plants, awareness of prevailing winds in your location, installing insulation in the exterior walls and in the attic of your house, and a variety of other "passive" techniques can save a great deal of energy, and make your home more comfortable as well.

Very efficient artificial light sources (like LED's and fluorescent lamps) and appliances that consume little energy to produce the desired result are also allies in your campaign to live more economically. New technologies can make conserving energy easier, but they won't do the whole job by themselves. Good luck!

Guru

Join Date: Feb 2008
Location: Montreal, Canada.
Posts: 572
Good Answers: 31
#4

Re: mixed energy supply in home

04/14/2008 10:07 AM

In general, intermittent energy sources like solar and wind need some storage to obtain optimum result. If you want a minimum of investment and use an electric water heater in your house, I would suggest to wire the top element to your wind mill. (Can also be done with gas but it is more complicated) Leave the bottom heating element on utility supply but reduce its thermostat to the minimum comfort level. By raising the top thermostat a few degrees you will gain a reasonable delta T.

If you want more capacity and better performances, skip the above suggestion and install a upstream tank before the final utility connected one. This way, the upstream tank pre-heats the city water using the alternative energy and you use the utility to finish up the heating when necessary. This is what I have in my home and it works very well. I never ran out of hot water even with two teenagers in the house... Make sure that you keep all the over-pressure protections in places.

Hot water is a major energy consumption center in a home and usually has the storage capacity needed for this type of application. You can also use surplus production to heat the house if needed.

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Power-User

Join Date: Sep 2007
Location: Raleigh, NC
Posts: 150
Good Answers: 7
#5

Re: mixed energy supply in home

04/14/2008 11:20 AM

As said before, use compact fluorescent lights.

Solar water heaters are a long established and proven technology.

Using ambient light as much as possible is recomended.

If building a house, there are a lot of considerations that can be incorporated into the design which can make the house cheap to heat and cool. Simple things like reducing the size of the windows on the north side of the house can greatly reduce the ammount of energy needed to heat the house in the winter, for example.

NC State has built a demonstration model house incorporating most of the available technologies and has been operating this since 1981. Try this link for information on all available technologies:

http://www.ncgreenbuilding.org/site/ncg/public/show_project.cfm?project_id=134

Guru

Join Date: Nov 2007
Location: Earth. England/America -the birthplace of the C. S. A. - anywhere I imagine -home.
Posts: 774
Good Answers: 33
#6

Re: mixed energy supply in home

04/17/2008 11:58 PM

First insulate to keep heat from moving in or out. Cooling can be done by pumping water through deeply buried pipes and indoor heat exchangers with fans. Passive solar panels can heat water for the faucets or can be run through the heat exchangers to warm the house. The use of low-voltage lighting or compact fluorescents can help. Try Solotubes or fiber-optics to bring in outside light. Triple glazed windows, tinted, will also keep out the heat.

To make your own electricity use a solar boiler to run a steam engine/generator and use a fueled boiler at night so you won't need an expensive bank of batteries. Photovoltaic panels are still too expensive compared to the time they last and you will need a very expensive bank of batteries for nights. A solar reflector boiler and fueled boiler with the steam engine powered generator is likely to last longer with less maintenance/replacement costs and use only one big truck battery to reset the reflectors for morning and start the fueled boiler and operate the computerized controls.

If you could start from the ground up an earth-sheltered or "underground" house would really save energy. One meter of earth covering the house provides great insulation, a place to garden, an exterior that doesn't need paint or repair and is impervious to storms. Of course the house will have to be built very strong to support it, which costs a bit more, but it all evens out in the long run.

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