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Answer by extex_cop
A 1/2 hp motor is going to need a really huge solar panel to keep a battery charged to run it all day.

Good Luck

Answer by Irv S
You’ll need about 6 panels to run a 1/2 HP motor,
only when the sun shines.
They will not sell them to you for your own good.
What you are planning simply will not work for you.

Answer by roderick_young
If the motor is really 1/2 HP, then that is about 400 watts, maybe realistically 300 when running.

Many motors of that size are actually “universal” motors, and will run just fine off DC. I will not give you any guarantees that it will work, and most likely no one will. You would also need to develop about 100 volts DC, which is 4 grid-tie type panels in series. To give margin when the sun is not totally brilliant, you’d probably want 5 or 6 panels. But I do not know what would happen at sunrise, when there will be a very low voltage across the motor. Possibly it would be ok. If not, you’d need a controller to disconnect the panels when the sun is not bright enough. Also, you would want to have some sort of protection for the panels against the inductive kick that the motor might produce.

This is starting to sound like it would cost a sizeable fraction of $ 5000 already, with the bulk of the cost in the panels, which would be $ 500-$ 1000 each, depending on what kind you get.

It could work, if your goal is to save energy. If your goal is to save money, that sounds difficult.

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Answer by Mike D.
Not at all, because of the cost of wind turbines, they are strategically put based on fluid dynamics. Also, solar panels are not efficient, and mass produced versions only harness 20% of their energy input.

Answer by J.
It would not work.

The complaints from the people living near the poles would be intense. Then maintenance. And liability.

One reason there are not as many wind turbines as people would like to see- or not see- is due to a number of factors, NIMBY is one, but also not many areas are conducive to wind power. As for solar, Panels produce DC, again, aestetics. Panels also have a wind load- which can snap typical power poles in high winds. Do you want one falling on your car, or getting lift and carrying into your house?

The thing is, the “Smart Grid” is being promoted, and it is being promoted in a way that your appliances make the service calls autonomously, your appliances and Air Conditioning get controlled by the power company, and that you become dependent upon it. They do NOT want people getting off the grid- because they can’t quantify carbon dioxide if you are off grid, and there are groups who went to a lot of effort and expense to develop carbon calculation schemes on behalf of the frauds who promote AGW.

Here are are some sources that should help.

http://www.awea.org

http://www.builditsloar.com

http://www.wepower.us

‘http://www.sandia.gov/bus-ops/partnerships/tech-access/facilities/photovoltaic.html

Answer by Carlos Ramirez
Solar Panel’s are still too costly to replace all utility electricity. In fact, most solar panels implemented across the world are subsidized which means that the government or other private corporations are covering a part of the costs. Wind turbines are not only costly but can only be used in choose areas based on wind currents.

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Answer by classicsat
You would use a switching buck converter.

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Have you replaced the regular light bulbs in your home, and if so, how many have you replaced?

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Answer by Pundit Bandit
Most of our lights have been replaced with florescent energy saving bulb. The few that still have incandescent are seldom used.

Answer by Kt
I have not replaced them yet, but I would really like to! I just saw “An inconnvenient Truth” and am now really interested in reducing greenhouse gases.

Answer by LittleLady
2

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Answer by Aviator1013
The swift answer is 2400kwh would probably need close to a 20kw generator but if you want to get an average for the year maybe 1600kwh average you might get away with 10kw.
Very windy is a relative term so you will need to look at a wind map. Go to http://www.windpoweringamerica.gov/wind_maps.asp and choose your say and then find your area.
You will need to take that information and check it against a power curve for different wind turbines. This is one for a few turbines in the 10 to 20kw range. http://www.windturbine.net/performance.htm This will give you an annual output for this brand of wind turbine. If you look at the chart the left column is the 20 and the far right is the 10 and notice how different the outputs are from just 12 to 15 mph wind speed, that is why an accurate wind speed is important.
Also I do not know about your place but where I live we have much superior winds in the winter than summer so for me average through the year is what I go by.

Answer by blawgg@ymail.com
For a wasteful family of 5, you need to make about 180 watts an hour each hour of the day, 365 days a year.. Your ‘padding’ for windless days will either be batteries (mildly expensive) or solar PV (exceptionally expensive).
Look up your local wind data and use that average wind speed and various prop sizes to compute what type of system you want. Simply change the prop diameter and wind speed to see the approximate wattage and amperage you can anticipate for a 12 volt system from any reasonable airfoil. If you see a claim of more power from a smaller blade diameter, it probably is not accurate.
If you are running a 24 volt DC system, divide the amps by 2. If you are running a 48 volt DC system, divide the amps by 4.
1KW=1000 watts
1 HP=746 watts
Below is an article I found that you might find interesting.

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• Save More than 78% Energy of an Incandescent Bulb, or 46% of a Fluorescent Bulb
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ecoBrites eco-friendly and energy efficient Light Bulb – 5w LED PAR16, Warm White Light output, best for Spotlights or Downlights (standard 110V/GU10 base to Replace Incandescent, Halogen and Fluorescent Bulbs)
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• Deliver 78% more Energy Savings than Incandescent Bulbs, or 47% more than Fluorescent Bulbs
• Rated Life 50X Longer than Incandescent Bulbs, 6X Longer than Fluorescent Bulbs
• No UV, IR or Heat Radiations, unlike Incandescent Bulbs
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ecoBrites LED 7x1w, PAR 30 Natural White Light output, Wide Angle Beam, ideal for Recessed Downlights, Spotlights, Track Lights & Floodlights (replacement or retrofit of Incandescent, Halogen, Fluorescent and CFL Bulbs). Standard 110v/E27 screw-in base * Directional Light Beam. Replace 90w Incandescent Bulbs in Recessed Downlights and Spotlights Applications (*according to DOE, incandescent bulbs lost 46% usable light in spotlights and downlights fixtures). Replace 60w Incandescent Bulbs in Othe

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1 of 2 people found the following review helpful: kitchen LED, October 3, 2010 By  William E. Tobin – See all my reviews Amazon Verified Purchase(What’s this?) This review is from: ecoBrites eco-friendly & energy efficient LED Light Bulb 7w (to replace 60w incandescent), PAR 30 / R 30 Natural White Light output, Wide Angle Beam, ideal for Recessed Downlights, Spotlights, Track Lights & Floodlights (replacement or retrofit of Incandescent, Halogen, Fluorescent & CFL Bulbs) Purchased ecoBrites LED in October 2010 for use in my new kitchen. Was frustrated with high cost and poor lighting of other LED on market. These lights are the ideal bang for your dollar. They are bright enough for the 5″ high hat fixtures. The 7 watts used for each LED is amazing. Envision 10 lights for a total of 77 watts. That is less than one normal 100 watt bulb. No more changing lights.Wow. The ideal aspect of these bulbs, was the service received from ecoBrites. Once I ordered, the company sent me an e-mail to ask me if I needed an extension because the bulbs I bought were not for the high hats. They sent me the extenders for free. Then I offered to feature them in my Green Open Home Tour on Oct 2nd. Next thing I know, the CEO, Mr Glen Lu, is contacting me and asking If he could come to my open home to bring literature and do some customer, field research. Well, Glen arrived and he brought a few new bulbs that are dimmable LED. He even left literature that offered the open home attendees a 10 % discount by using my name and city. A very special touch from a very special CEO. The entire experience was outstanding dealing with Glen Lu and his ecoBrights LED company. Help other customers find the most helpful reviews  Was this review helpful to you?  >Report abuse | Permalink  Comment

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Answer by yaman a
Wind is not efficient enough to replace another source of energy. As it depends on location if there is no wind there is no energy. It is the same idea with solar, hydro, geothermal, etc. People would like wind over these kind of sources if it was more efficient or cheaper to maintain.

Answer by Matt
Wind energy mostly replaces energy from coal-fired power plants. In reality wind will never fully supplant nonrenewable energy sources because it is not reliable (non-windy days). There must always be back-up sources that can be used on demand. The cleanest solution would be nuclear and natural gas nonrenewables along with geothermal, wind, and solar renewables.

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• 3 PCS High quality CREE LED from USA, which is one of the ideal brand in LED field
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This item is GU10 CREE LED spotlight. Input voltage can be 85-265V AC. Diameter is 49mm. Length is 55mm. View angle is 30 degree. This item is popular in hotels, restaurants, ambient, exhibit, residential applications and so on.

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Look nice and bright, May 20, 2010 By  X. Tao (USA) – See all my reviews    Amazon Verified Purchase(What’s this?) This review is from: GU10 LED Bulb – CREE 3W – Replace 25W Halogen Bulb – Warm White I replaced 20W halogen lamps in my room with this item. It’s brighter than 20W halogen lamps. Besides, it feels better. I am not expert and do not know reason. Maybe it’s power of CREE LED. It’s worth. Help other customers find the most helpful reviews  Was this review helpful to you?  >Report abuse | Permalink  Comment

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