Posted on 04/12/2009 11:24:13 PM PDT by neverdem
I am really astounded by the public's apparent ignorance about "wind energy". We all experience sunshine and wind but few of us bother to examine the "quality" of that sunshine and wind. Obviously wind turbines only spin and generate electricity when the wind is blowing. Accordingly, solar panels only generate electricity when the sun is shining on them. In order for these technologies to be economically viable you have to have a lot of wind and/or a lot of sunshine.
What permits were required?
When was the last time you "ran the numbers"?? Nanosolar panels < $1/watt.
Wind generators not only do not generate electricity when there is no wind, they are also shut down when there is too much wind. Those monster turbine blades will self destruct in high winds so they only operate in a narrow range of wind speeds. This means that windmills cannot be used for reliably generating a large part of electric needs because there may not enough or too much wind blowing when there is a demand for power or ideal wind conditions when there is little demand. On February 28, 2008 Texas experienced a power crisis when nearly all of their wind generators were stopped due to a large weather front. Imagine the consequences if wind generators were to be the source of 20% of our electric generating capacity.
I ran the numbers just last week based on annual KwH usage, average number of sunny days, and available space to mount panels, along with installation costs in my community and cost of materials currently considered to be the most efficient. Assuming perfect conditions and completely covering every square foot of roof space with panels which are in the $4.00/watt range which are the type recommended for my house, and 50% rebates for my state, it still would cost $15,000 out of pocket for a system. If I can eliminate my current electric cost and even make a $25/month profit by selling electric back to the grid, it would take 50 years to recoup my $15,000 cost (not including the cost of replacing components over that 50 year period). Also, the numbers don’t include the fact that 90% of my current electric cost comes from night use when the solar panels have no offset effect. I’ll probably only live another 15 years, so it just isn’t worth it. If I were in my 20s, I think it would make sense for this house. By the way, nanosolar panels are virtually impossible to find unless you want to wait a couple of years. Their estimated length of service is also unknown.
"By the way, nanosolar panels are virtually impossible to find unless you want to wait a couple of years.
Which is good, because that means that their product is selling well, and they'll be around a while.
"Their estimated length of service is also unknown."
Uh, they offer a 25 year warranty. How much more do you want??
At < $15000 installed cost, and grid independence essentially forever, it absolutely makes sense to build these into NEW homes, especially across the "Sun Belt".
That he does. Are the scoundrels going to send him any?
That`s the way we used to raise those big fly-swatter
antennas in VN.
Beautiful scenery ya`ll have there,and a pretty steady
wind I imagine to keep it spinning.
Heh! Some of us *like* flat featureless landscape. (It's not really featureless anyway. It's just flat.
Waves of grain, or grass come to mind, as only one of many features.
BUT...
I was driving in north central Kansas (I think, might have been south central Nebraska, just last Friday. I drive the route once or twice a year. (It leads directly to my mother-in-law's house..:).. in fact that's who was in the car with me. ) We came across one ridge, not out on the flat at all, with at least a dozen wind turbines on one side and at least a couple of dozen, maybe even three dozen on the other side, of the highway. All right on the ridge line.
They were all feathered. Too much wind is also NOT GOOD, and Thursday there had been too much wind.
But, smarter folks than I have shown by some fairly simple calculations, there is not enough wind in the country to make much of dent in the demands for energy.
Fossil fuels can do that, but so can nuclear, with a lot less "bothersome" side effects. So, what has the Messiah done? Canceled the project to ameliorate the one bothersome side effect of nuclear energy. (Yucca Mountain storage site). I think Obama is Crazy Eddie.
Where can I get one?
Well not exactly. For one thing, since the wind energy generators are distributed rather than at a single location, it's unlikely that all will be down at the same time. (Not true for solar of course, since it's dark over very large regions at the same time.) Secondly there is storage.
You generate more than you need when the wind blows or the sun shines. You use the surplus to pump water uphill into a reservoir. Then when you need it, you let the water run down through the water turbines (which may be the same machines as the pumps, just running in the "other direction").
Pumped storage is in use today, although it's generally used to make use of nuclear or other "base load" capacity during times of lower consumption, such as at night. A nuclear plant, and to a lessor extent large fossil fueled plants, don't "like" to have their output changed frequently. They like to run at a steady output, preferably something close to maximum.
I have considered this point, but I think given normal equipment maintenance, and the fact that most heating technology doesn't last for 30+ years without needing a total retrofit, there is no way to recoup costs, no matter what one's age might be.
By the time the payback period is over, the equipment will likely be obsolete, and totally nonfunctional.
Generally mechanical equipment is considered functional for 10 years, but somehow alternative equipment gets to be considered for 30 + ?
The technology doesn't warrant it, and I think it's only done because it skews already questionable numbers.
Just my 2 cents.
If I were home, I post some pictures of this.
I'm surprised that all these smart folks in wind power haven't figured out how to use them to charge batteries or capacitors of some kind to even out power supply. It seems kind of obvious.
Right now, you can't. The plant dedicated to producing cells for home installation isn't due to start up until (as I recall) next year. The current production is optimized for "utility-sized" cells and panels, and production for that plant is "sold out" for (again as I recall--just too lazy busy to go to the Nanosolar website and check) the next three years.
I know he had to submit a plot plan, all the drawings for the foundation and tower and get them approved (which took months of run around),sound permit. Electrical gets inspected. I’m sure there’s more. He would say it was tougher to do all the paperwork and running around to city offices than the actual construction was.
He’ll file the paperwork after the power company inspects it today and we’ll find out. He should get around $4500, which is the cost of the turbine itself.
I'm not. From Kindergarten on, most kids hate math and science. You can dress it up, hip it up, or sex it up, and they won't learn or retain it. So it's no surprise that people promising "magic" to them get all the accolades and press. Most people are completely clueless as to how the world works.
They have. My wife's grandfather had a wind turbine, with storage batteries, back before the farm got connected to the electrical grid. His farm was the first in the county to get connected too. Grandpa was very forward looking, as would be expected considering he got his bachelors degree in about 1919, pretty unusual for a farmer in those days. He also served on the board of the local REA from those days until the 1970s.
He swung a mean sledge too, as the "township blacksmith". If you had a broken part, and the dealer was back ordered on them, you went to "walt".
Plus, if you got married in that part of the county, it wasn't official unless Grandma N made your wedding cake. She made ours, actually both of them, and transported them 120 miles. :)
Disclaimer: Opinions posted on Free Republic are those of the individual posters and do not necessarily represent the opinion of Free Republic or its management. All materials posted herein are protected by copyright law and the exemption for fair use of copyrighted works.