Home > September, 2008
FACT: There aren’t enough resources on this planet to sustain continued human growth and increasing quality of life.
FACT: If we want to avoid catastrophic war, suffering, and global shortages of energy, we need to start looking to space seriously for solutions.
Space Based Solar Power is the first step.
Music - “Pulse” by Yoko Kanno
www.energyfromspace.org
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Got board so I made it!
Dont mind what I say at the end I was tired and it was late
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I am very concerned about global warming, and when I grow up (I'm only fourteen) I plan on using solar power to power my home (and I hope that when I grow up it's customary). How efficient is solar power? How many square feet would it take to power a 2,000 square foot home? How much would it cost?
Comment to "Ed" added…
There are two main types of solar power. One produces electricity, the other produces heat.
The electrical type are called "photovoltaics", the heat type are "thermal".
Photovoltaics are not presently very efficient, converting less than 15% of the suns energy to electricity, but by the time you build, they should be better, and cheaper. Thermal solar is much more efficient, especially if you use it to heat your water, because the system runs all year. Home heating is not as good, because winter is not a good time to collect solar. When you design your house, you can take advantage of "passive" solar, which is basically putting a lot of good windows on the south side (or north side if you are south of the equator!) and letting the winter sun shine in. These windows need to be very good, or have an insulator to cover them at night and cloudy days or they will gain energy all day, only to lose all of it at night.
As far as your house goes, it's not so much a matter of how big it is, as how well insulated it is. If you "super insulate" it, you will need very very little heating or cooling energy.
The other cost you will have is for things like computers, refrigerators, TVs, sound systems, lights, fans, cooking equipment and water heating. By picking the most efficient, you can reduce the size of the photovoltaic system you would need, and using solar water heating will handle 50% of the yearly amount with present technology for about $3500. A photovoltaic system to handle all your electrical needs would be quite expensive now, in the $10,000 to $20,000 range, but that cost will continue to fall, and by the time you build it should be closer to $5000.
Hey Ed….I don't know when you bought your system, or what other costs were associated with it…but 6KW systems don't cost 40K anymore…this from Solar Today "A 25-year warranty accompanies the Sharp panels. In 2003, we paid $18,000, which included the eight batteries, two inverters, hardware, 6,000 watts of solar panels and labor."….and King solar sells a "whole house" package for $11,000… but they don't say how big it is. The average home in California uses about 7000 KW per month…so to get that much is going to be more expensive. Our young friend here is thinking ahead. If a house is located right and designed well, then the most efficient appliances and lighting is selected, it would be easy to live well on half that 7000KW.
Good luck, and good thinking!
We Thank you for taking the time to learn about solar energy and how the installation process begins from shipping to solar roof mounting, and wall mounting of the Outback DC/AC inverter plus showing connected to an 240 auto transformer for our client to enjoy with this duel inverter the power to storage the electrical power produce within a 9000watt battery bank and have the excess power ability to feed the electrical power back to the electrical power company .Plus recently new passing of a Netmetering laws allow for
crediting of residential or business solar power being feed by to the transmission lines. to learn more about the many states offering of grants and rebate to help ist in your desire for a solar energy system please go to www.dsireusa.org find on the map of the United States your state look for solar rebates incentive plus learn about the new energy tax credits and how that can be added to your state rebate to help reduce cost for your investment.
Oil prices today is over 90 dollars per barrel and climbing we must become energy free. The direct driver of the economy into recession is the high cost of energy impact upon the housing markets the solution is now for a US economic recovery will be ZERO Energy Homes concepts.
Say Bro Wisdom2See
www.solarwindpower.biz (more) (less)
Tags: solar energy oil prices wisdom2see poweroutages blackouts. electric rat
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I want to make a wind power generator to power things in my house. I want it to be able to power a small tv and DVD player.
To make this you will need a few things.
the generator, blades battery and inverter.
I have made three of them and I use them to power various things outside like lighting, pool pump and tv.
The best source of info for this is http://www.earth4energy.com. Thats where I got my blade designs from and learnt how to wire it up.. Its saving me some good money 
Clean, renewable energy is becoming a core part of Puget Sound Energy’s power supply. PSE’s goal is to meet up to 10 percent of its customers’ total electricity need with cost-effective renewable resources by 2013. A major step in that direction is PSE’s ownership and operation of two large wind farms in Washington state. More info located at: http://www.pse.com/energyEnvironment/energysupply/Pages/EnergySupply_ElectricityWind.aspx
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Matisse & Jack’s homemade energys are a snap-to-make and taste better than packaged bars.
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And is an area of 1 km^2 for a solar power tower enough to produce energy for five houses? can you make an approximation of how much it could supply?
If you want the heat energy, consider tracking mirrors at the site and solar collectors on the houses. If you want electric energy, that area is enough to support a traditional steam turbine, much more cost-effective than photovoltaic. That area is about 15 times the area that Solar One used to generate 10 megawatts in the Mohave Desert, so it could supply a theoretical maximum of 150 megawatts during peak sunshine. That's probably enough to match the demand of about 25,000 homes. Best bet would be to feed it to the electric power grid.
how cheap can you build a home wind turbine from ebay.co.uk
dont put them near trees as this creates turbulence and get it as high as you can for extra power
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report on canadian wind turbine technology in china