Small Wind Energy Systems
Learn more about Small Wind Energy Systems at the website RouhNeckChronicles.com.
Q: Small solar/wind system?
Is there a solar or wind energy storing system I could us to power small devices/appliances throughout my house? Not obviously the whole house, nor things like ovens and fridges, I just mean plug-in things. I don’t want to involve an electric contractor, so I guess I just need some batteries, alternator, converter and panels/turbine itself…anything out there like this?
A: My local auto parts store has a sale on a solar panel to charge a car battery and for powering similar voltage items. It sells for $99. I was thinking at that price I could buy several and hook them up to boost the voltage to power other things. I`m using one to power this laptop I`m using to post this message right now and works like a champ.
Q: My husband wants to build a wind turbine and buy a couple of solar panels.?
We looked at the cost of buying a whole home alternative energy system to try to cut down on our home electric bill…it has been cold this winter! Anyhow, the cost of a whole home system was pretty steep for even just a couple of solar panels and the cost of a wind turbine was kinda up there too. Does anyone know of any online resources that he could use to build a small system that would help us?
A: I would check out a solar panel forum to get advice from actual people who are already using solar and installed it themselves. Sounds like you are on the right path though, so good luck!
Q: In referring to Earth’s systems, which one of the following statements is accurate for an open system?
A. The human influence has little effect on an open system.
B. An open system exchanges energy with its surroundings.
C. An open system is unchanging.
D. An open system is unaffected by outside objects.
What occurs in wind erosion?
A. Wet soil is transported away.
B. Dry soil is transported away.
C. Small rocks are left behind.
D. Large rocks are left behind
I think its… B, and B
A: B and B are correct.
Q: When will solar and wind power be affordable to the average home owner?
I have been doing some research on solar panel and wind turbine systems. The pricing is crazy. For a 10Kw solar grid tie kit system is between $35,000 and $40,000. If you install batteries add $3,000-$5,000. 10Kw will only power a small to medium home without electric heat. Using my electric usage and info from my local electric company payback is 60 years for solar and 361 years for wind. This is unexceptionable. The manufactures of the solar and wind are gouging the consumers. They are using the excuse of supply and demand for the high cost. When demand goes up so will mass production and the price will go down. This is true, but they are making a huge profit on what they are making now. Some items are in the 3000% markup range. Are the power companies keeping the price up so their profits don’t suffer? My local electric supplier has an “ENERGY PARK” that you can go see solar and wind power in action and check out real time data online. They have a 4Kw solar array installed and claim it cost $30,378 installed and a 2.5Kw wind turbine that cost about $20,000 installed. I think they are giving false numbers to consumers so you won’t go green. I was able to find a 3.5Kw kit online for $9,000. This doesn’t include any type of mounting materials. You can add $800-$1,200 for these materials. An installer will will charge you $2,000-$4,000 to install it. For the sake of argument lets say this will cost you $15,000 to install but still way out of line for you and me to install. That is a far cry from the $30,000 the power company claims. The power companies don’t want you to make your own electric. They are keeping the cost high so they will still make money off you. A 210w panel sells for around $600. They probably manufacture it for under $50. The cost needs to be $100-$150 to the consumer to make it affordable to the average home owner. 50 210w panels make a 10Kw system. That would be $5,000 not $40,000. The manufactures are raping us and the power companies are helping them to keep prices high. When will we get the technology at a proper cost? Let me know what you think.
In response to the first 5 answers, Yes, if demand increases so will mass production and thus supply will increase and this will drive the price down. I looked into panels from China. From what I was able to find panels sell for $0.17-$0.45 per watt. In the U.S. they sell for $3.00-$5.00 per watt. Manufactures in the U.S. have lobbied for a higher tariff on solar products that makes them impractical to import on mass. These companies want to keep the price high so their profits stay high, and the power companies do not want you to produce all your own power. That would put them out of business.
In response to Steve R, You need to do more research before you post another retarded comment like that. Air “DOES” have mass (just not very dense). When air is in motion it is called “WIND”. This motion creates energy. Have you ever heard of a “tornado”? Get your facts together next time.
A: Cut the incentives, import tarriffs, and special grind tie rates. That will make prices truly competitive for those that want to participate in home green energy, and not put any cost on those that do not want to.
The important thing is the incentives, which artificially raise the prices of equipment.
Q: What kind of alternative energy solutions are feasible in Portland?
So, I’m a college student in Portland, Oregon, and an ameture hobbyist that enjoys tinkering with electronics. I was thinking about starting an initiative on my campus to build more eco-friendly energy sources, but the campus is convered with really tall trees and gets small amounts of sunlight (it is Portland, after all). I think those two things rule out a wind turbine system or a solar panel system. Does anyone know of any alternative energy solutions that intelligent and driven students could build in a place like that?
Honestly, I don’t really care about the carbon footprint or how all alternative energy is supposedly just a gimmick that makes people think that they are doing something good when they aren’t. I don’t know enough about global warming to even know if it is a process that humans have a significant control over. The more I read about it, the less I know. That being said, I just want to have some energy that doesn’t spew smoke and won’t be used up. I’m more concerned with aesthetics and renewability than really saving the environment.
A: As a college student in Portland, you should already know about this.
http://www.metaefficient.com/renewable-power/new-rooftop-wind-turbine-tested-the-helyx.html
Vertical wind generators require less wind to operate, and less area to install.
http://www.metaefficient.com/renewable-power/new-rooftop-wind-turbine-tested-the-helyx.html
http://www.pacwind.net/news.html
Q: Does this mean the end to ‘wind’ power?
Energy Baron T. Boone Pickens is scrapping plans for the world’s largest wind farm in the Texas Panhandle. He’s already ordered the wind turbins and is having problems storing them. He has a lease on 200,000 acres in Texas that was planned for the project and he might place some of the turbines there but he’s also looking for smaller wind projects in the Midwest and Canada.
In Texas, the problem lies with getting power from the proposed site to a distribution system. He’d hoped to build his own transmission lines but there were technical problems.
If the country needs to create jobs – why doesn’t he continue and put people to work? Why is he backing off, like most companies, instead of moving forward?
A: The world is populated with old fossils who are used to using fossil fuels. They point out, quite rightly, that electricity generated by coal costs less than that generated by wind. What they don’t point out is that the coal plants were expensive too, when they were new, that you don’t have to destroy the environment to mine wind or worry about it running out, and that wind does not leave any toxic waste to dispose of.
Q: Might wind turbines cause localised climate change?
Although I certainly believe that renewable energy is preferable to fossil fuel burning, I’ve been thinking, is it not possible that these options will cause their own forms of climate change? For example, wind turbines should cause a small decrease in wind speed, and as climate is a chaotic system who knows what the end result could be due to the “butterfly effect.”
Likewise, hydroelectricity should cause a change in surface heat retention (due to the fact that water retains heat longer than solid ground), whilst solar power will increase the reflective properties of the ground possibly reducing surface heat take-up.
What are your opinions on this?
Also, what options do you think we have instead? Do we have ANY?
A: Renewable energy also isn’t environmentally neutral and causes some loss of natural habitat. Wind farms are noisy and effect birds and animals, solar panels also displace natural habitat. These schemes need to be very large to be effective and even in the desert there are living things which will lose their homes.
I remember in the 1980’s in Australia the Tasmanian state government wanted to build another hydro scheme which involved submerging large expanses of old growth forests and reducing the habitat of many endangered species. There was a national outcry and a high court battle between the state and federal government which managed to stop them.
Q: So how much trash and pollution was produced at the Live Earth concerts?
I assume the artists all sailed, biked, or walked to the venues.
And the sound systems and satellite broadcasts were all powered with solar and wind energy, right?
Meanwhile, I went biking, hiking, and camping last weekend. I guess that makes my “carbon footprint” pretty small.
What a bunch of hypocritical kooks.
A: What a great point! Also think about all of the people that sat in front of the television watching and how much each television took up energy.
And I would love to see what the concert grounds looked like afterwards. I doubt they recycled all of the water bottles, concert tickets, food containers, etc.
Q: physics questionsssssssss?
1. After shooting a cannonball, a cannon recoils with a much lower velocity than the cannonball. This is primarily because, compared to the cannonball, the cannon has a
a. much greater mass
b. smaller amount of momentum
c. greater kinetic energy
d. smaller force applied to it
2. A mechanic used a hydraulic lift to raise a 12054N car 1.89m above the floor of the garage. It took a 4.75s to raise the car. What was the power output of the lift.
a. 489W
b. 1815W
c. 4796W
d. 30294W
3. A horizontal force of 600N is used to push a box 8m across a room. Which of theses variables must be known to determine the power used in moving the box.
a. the weight of the box
b. the potential energy of the box
c. the time it takes to move the box
d. the length of the box
4. Only 10% of the electrical energy operating a light bulb is changed into visible light . Which instrument helps identify the energy change occurring the most of the 90% remaining?
a. triple beam balance
b. thermometer
c. magnifying glass
d. prism
5. An advertisement claims that a certain truck has the most powerful engine In the class. If the engine has more power, which of the following can the truck engine do, compared to every other engine. In its class.
a. produce fewer emissions
b. operate more efficiently
c. perform work faster
d. accelerate longer
6. Which of these is an advantage of producing electricity using solar power plants rather than using coal fired power plants.
a. solar power plants can operate for about 10 hours per day
b. solar power plants can produce variable amounts of energy
c. solar power plants produce fewer pollutants
d. solar power plants requires continuous sunlight.
7. Which of these devices uses the suns energy directly
a. windmill
b. hydroelectric dam
c. nuclear power plant
d. photovoltaic cell
8. A leaf from an apple tree falls to the ground more slowly than an apple falls. As an explanation of this observation, the ancients Greeks theory of natural place has been replaced by a more recent theory involve gravitational force and
a. atomic weight
b. inertial mass
c. air resistance
d. kinetic energy
9. The typical automobiles kinetic energy is converted to heat energy when the brakes are applied. A braking system that converts kinetic energy to electrical energy instead of heat energy has been designed. The electrical energy can be used later to move the car again. How does a system like this benefit the environment?
a. greater use of solar energy
b. ability to harness wind energy
c. decreased use of fossil fuels
d. use of renewable hydroelectricity
10. A woman lifts a 57-N weight distance of 40 cm. each time she does a particular exercise. It takes her .60 seconds to lift the weight. How much power does the supply for lifting the weight one time
a. 24 W
b. 34 W
c. 38 W
d. 95 W
11. A researcher determined the percentage of electrical energy transformed into different forms of energy by a toaster. The best way to communicate these results is to display the data using a
a. histogram
b. circle graph
c. line graph
d. box-whisker graph
A: That’s all the questions in your take home quiz. Why not open the textbook and read on it? You’ll actually learn better than just getting answers from the Y!A.
With the amount of time it took you to type this up, you would’ve probably found a couple of the answers by skimming through the book.
Q: What do you think of this idea in terms of energy policy for the US?
First the government would invest in private companies, small businesses, and startups to commision them all to produce home based power. Now home based power is what I think could be a reality in the near future. This means that each home using a combination of technology would be able to produce its own power for its own needs. And this could be done through everything from wind to solar, although solar would be the best bet for such a move. Then the government would also invest in an upgrade of the power grid. This power grid would be a “smart” grid that would treat each home like a hub that supplies energy across a network. Even though each home would power for its own uses, it would also help power other homes and areas as well with any excess it produces or does not use. This smart grid could also then utilize nuclear power plants as secondary backup and supplementary systems that run in unison with home based power systems. The smart grid would also be interactive, meaning it would compensate for brownouts and black outs through the power grid interface.
Talking points:
- Small and private businesses could hire employees to run neighborhood networks of the power grid if say people create communities that have decided to work together beyond the original design of the grid.
-The government would regulate the nuclear plants with oversight commitees to make sure waste is properly disposed of.
- Homes and people could buy better power generation systems that produce more power that could then be sold to power companies that they would then use for backups.
- Decentralizing power plants and giving more control to consumers and businesses on their needs and uses.
What do you think?
A: I’d would much rather have government get out of the way and keep it’s fingers out of areas where they have no business. Americans are known to solve problems, and American businesses try to get two dollar’s worth of value out of every dollar. Government, on the other hand, is the source of nearly all our problems and tries to get a half dollar worth of every dollar they steal from our pockets.
Q: Physics – Total and Rotational kinetic energy???
A box contains machinery that can rotate. The total mass of the box plus the machinery is 6 kg. A string wound around the machinery comes out through a small hole in the top of the box. Initially the box sits on the ground, and the machinery inside is not rotating (left diagram). Then you pull upwards on the string with a force of constant magnitude 114 N. At an instant when you have pulled 0.47 m of string out of the box (indicated as d2 on the diagram), the box has risen a distance of 0.17 m (indicated as d1 on the diagram), and the machinery inside is rotating.
1) What is the total kinetic energy of the system?
2) What is the rotational kinetic energy of the machinery inside the box?
I have found:
K_trans = 9.398 J
distance through which the gravitational force acts on the real system = 0.17m
W_grav = -9.996
distance through which your hand moves = 0.64 m
W_hand = 72.96 J
A: I think this question is not complete and we need to make certain assumptions.
Anyway, assume when you have pulled 0.47m, all work done is just converted to rotational kinetic energy of the machinery.
then rotational KE =114*0.47=53.58J
From 0.47m to 0.64m, assume all work done gets converted to potential energy and translational kinetic energy.
work done during lifting=0.17*114 =19.38J
potential energy=mgh=6*g*0.17=9.996 J (g=9.8m/s2)
Translational KE= work done during lifting- potential energy=9.384J
1) What is the total kinetic energy of the system?
53.58+9.384=62.964J
2) What is the rotational kinetic energy of the machinery inside the box?
53.58J
Q: I Need help with WEATHERING, EROSION, AND WATER questions?
CAN SOMEONE PLEASE CHECK OVER MY WORK AND IF I HAVE ANY WRONG CAN YOU PLEASE TELL ME WHAT NUM# AND THE CORRECT ANSWER. I WOULD REALLY APPRECIATE IT. THANKS (MY ANSWERS ARE AT THE BOTTOM)
1. Which one of the following statements is correct?
A. Stalagmites are narrower than stalactites.
B. Stalagmites form on the ceiling of a cavern.
C. Stalagmites are formed from water containing salt.
D. Stalagmites are cone-shaped deposits.
2. Loess is made up mainly of
A. fine pebbles.
B. coarse pebbles.
C. windblown sand.
D. fine silt particles.
3. Where is the water table located?
A. At the top of the zone of saturation
B. Under the zone of saturation
C. In the layer of bedrock
D. Below the layer of bedrock
4. What landform would be created when a river travels around a bend?
A. Meander
B. Levee
C. Floodplain
D. Alluvial fan
5. Which one of the following is a source of chemical weathering?
A. The abrasion of running water
B. Water freezing in the cracks of exposed rocks
C. The effects of acid from decaying animals
D. The growth of mosses in the cracks of rocks
6. Carbonic acid forms when carbon dioxide is absorbed into water. The action of carbonic acid on _______ may produce sinkholes, caverns, and formations like stalagmites.
A. sandstone
B. limestone
C. granite
D. clay
7. In referring to Earth’s systems, which one of the following statements is accurate for an open system?
A. The human influence has little effect on an open system.
B. An open system exchanges energy with its surroundings.
C. An open system is unchanging.
D. An open system is unaffected by outside objects.
8. What is the process by which water dissolves certain minerals in the soil and carries them away?
A. Leaching
B. Weathering
C. Abrasion
D. Erosion
9. The most important measure of the size of a river is the
A. number of its tributaries.
B. width of its mouth.
C. volume of its discharge.
D. size of its watershed.
10. The soil with the greatest porosity would have
A. round particles of different sizes.
B. round particles of the same size.
C. angled particles of different sizes.
D. angled particles of the same size.
11. Which one of the following types of rock would weather the fastest?
A. Small pieces of clay
B. Large blocks of clay
C. Small pieces of granite
D. Large blocks of granite
12. The movement of sediment by the forces of nature is called
A. weathering.
B. deposition.
C. erosion.
D. abrasion.
13. The beginning of a river is usually located
A. near the base of a divide.
B. at the bottom of its watershed.
C. near the mouth of the river.
D. high in the mountains.
14. What occurs in wind erosion?
A. Wet soil is transported away.
B. Dry soil is transported away.
C. Small rocks are left behind.
D. Large rocks are left behind.
15. The finest particles of rock in a river are found near its
A. mouth.
B. headwaters.
C. gully.
D. divide.
16. The type of soil with the smallest particles would be composed of
A. gravel.
B. clay.
C. silt.
D. sand.
17. Calcium is carried in water by a process known as
A. flotation.
B. solution.
C. suspension.
D. traction.
18. In general, what causes desert pavement?
A. Wind erosion
B. Water erosion
C. Mechanical weathering
D. Chemical weathering
19. Which one of the following factors would have the least effect on the ability of a river to erode materials?
A. Slope of the river
B. Discharge of the river
C. Size of the river’s headwaters
D. Shape of the riverbed
20. Which layer in a soil profile contains the most organic matter?
A. A-horizon
B. B-horizon
C. C-horizon
D. O-horizon
(1)D (2)? (3)A (4)A (5)C (6)B (7)B? (8)A (9)C (10)B (11)A (12)C (13)D (14)B (15)A (16)B (17)B (18)A (19)C (20)A OR D?
If you can please go to my other questions and look those over as well, Thank you
A: Question 2 I believe is C-windblown sand. And question 20 is definitely D. The O in O-horizon stands for organic.
Q: What political party should i join?
Abortion: I completely agree with abortion in any form or for any reason.
Education: I think the government should help pay for students tuition and support the public school system.
Energy: I believe in shifting into more dependence on wind and solar energy, with less emphasis on oil.
Trade: I believe in limited free trade with the government controlling what trade does go on.
Corporation: I believe in limited large corporation and little or no small business.
Gun Control: I believe the only people with rights to guns are those who need it, like the police.
Health Care: I believe in complete universal health care that is not run by business.
LGBT: I completely support gay marriage and gay rights.
Social Security: I support SS.
Stem Cells: I support stem cell research.
Foreign Policy: I don’t think we should interfere in foreign government or ways of life; it is their own country.
War in the Middle East: I support a COMPLETE pull-out.
KK, so i knew i was left-wing all along. I wanted to see how people would react. So, no, the Democrats are not Communist. (How do you know?) I AM Communist.
:
Thank you all for your ‘opinions’, now please report back to Unser Fuhrer, Faux News, Unfair and Unbalanced. THANK YOU AMERIKKKA!
A: You would stick out amongst Democrats, but you would never be accepted amongst Republicans, so I have to say Democrat.
Q: How to setup a water system, wherein you can send water to the overhead tank without an electric motor..?
I am trying to find a natural way of sending water to the overhead tank of any house, without using any means of eletrical method, like using motor pumps. I mean to say, i want to send water on the overhead tank using natural energy like a smaller version of windmill, in such a way, as to add some attachment to the smaller version of a windmill which works with the natural wind..so that one can send water from a ground reservoir to an over head tank of any house.
A: You could use a windmill, but your system will have to be a little more complex then what you’re thinking.
You don’t want the water to be continuously going up, even when the overhead tank is full, so you need a mechanism to make it stop when the water level reaches a certain level. You also probably need the water to still be transported when there’s no wind, so the liability of you system is low.
I suggest attaching your windmill (or a solar panel) to a battery, and have that battery provide energy for a centrifugal pump that will do all the work.
The costs of this project need to be considered, because after installing the windmill, considering the maintenance costs (and let’s not even talk about the costs of a solar panel), this all might be more expensive than just using our own electricity to power the pump.
Good luck, though! Alternatives ideas like that are always cool!
Q: How can somebody say they read the stimulus bill and did not see any tax breaks?
Individual Tax Cuts:
1. “Making Work Pay” Tax Credit (Sec. 1001, Page 195). In tax years 2009 and 2010, the Making Work Pay provision will provide a refundable tax credit of 6.2 percent of earned income up to $400 for individuals and up to $800 for married taxpayers filing joint returns.
2. Increase in the Earned Income Tax Credit (Sec. 1002, Page 198). Go to the stimulus bill for all the details, but it essentially expands this benefit for the working poor.
3. Increased Eligibility for the Refundable Portion of Child Credit (Sec. 1003, Page 199). In 2009 and 2010, families who don’t earn enough to pay income tax would be eligible to claim the $1,000 child credit.
4. “American Opportunity” Education Tax Credit (Sec. 1004, Page 199). Increases the Hope Scholarship Credit to $2,500.
5. Refundable First-time Home Buyer Credit. (Sec. 1006, Page 202). This extended and increased the first-time home buyer tax credit from $7,500 to $8,000.
6. Temporary Suspension of Taxation of Unemployment Benefits (Sec. 1007, Page 203). This exempts from taxable gross income the first $2,400 of unemployment benefits.
7. Tax Credits for Energy-Efficient Improvements to Existing Homes (Sec. 1121, Page 208). This provides up to a $1,500 tax credit for qualified energy efficiency improvements.
8. Sales Tax Deduction for Vehicle Purchases (Sec. 1008, Page 203). This allows people to write off state and local sales taxes related to the purchase of a new vehicle costing up to $49,500.
9. Premium Credits for COBRA Continuation Coverage for Unemployed Workers (Sec. 6432, Page 348)
10. Economic Recovery Credits to Recipients of Social Security, SSI, Railroad Retirement and Veterans Disability Compensation Benefits (Sec. 2201, Page 336). This was a $250 payment for senior citizens, disabled veterans and disabled people living on Social Security benefits.
11. Computers as Qualified Education Expenses in 529 Education Plans (Sec. 1005, Page 202). This allows college students to write off the expense of computers and software, provided it’s for educational purpose and not for games.
12. Plug-in Electric Drive Vehicle Credit (Sec. 1141, Page 212). Allows purchasers of plug-in electric vehicles to write off up to $5,000 of their purchase (depending on the power of the battery).
13. Tax Parity for Transit Benefits (sec. 1151, Page 219). This relates to an increased exclusion amount for commuter transit benefits and transit passes.
14. Health Coverage Tax Credit Expansion (Sec. 1899, Page 309).
Small Business Tax Cuts:
1. Extension of Enhanced Small Business Expensing (Sec. 1202, Page 221). This is a temporary increase in limitations on expensing some depreciable business assets.
2. 5-Year Carryback of Net Operating Losses for Small Businesses (Sec. 1211, Page 221).
3. Extension of Bonus Depreciation (Sec. 1201, Page 220). This extends by a year election to accelerate the AMT and Research Credits in lieu of bonus depreciation.
4. Exclusion of 75% of Small Business Capital Gains from Taxes (Sec. 1241, Page 228).
5. Temporary Small Business Estimated Tax Payment Relief (Sec. 1212, Page 222).
6. Temporary Reduction of S Corporation Built-In Gains Holding Period from 10 Years to 7 Years (Sec. 1251, Page 228).
Other Business Tax Cuts:
1. Advanced Energy Investment Credit (Sec. 1302, Page 231). This relates to properties designed to reduce greenhouse gas emissions, such as those that produce
energy from the sun, wind, geothermal deposits, fuel cells, microturbines, or an energy storage system for use with electric or hybrid-electric vehicles.
2. Tax Credits for Alternative Refueling Property (Sec. 1123, Page 211). This is a temporary increase for alternative fuel vehicle refueling businesses.
3. Work Opportunity Tax Credits for Hiring Unemployed Veterans and Disconnected Youth (Sec. 1221, Page 223). This is a tax credit to provide incentive to businesses to hire unemployed veterans and “disconnected youth.” That latter term is defined, in part, as young adults “not readily employable by reason of lacking a sufficient number of basic skills.”
4. Delayed Recognition of Certain Cancellation of Debt Income (Sec. 1231, Page 224).
5. Election to Accelerate Recognition of Historic AMT/R&D Credits (Sec. 1201, Page 220).
From the American Recovery and Reinvestment Act of 2009 to fact check me if you want to.
to answer your question Ice T
A: Our tax burden this year is less than its ever been.
Sorry GOP, another myth busted.
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