By domestic I mean a single house. We're building a new one and would like to power it as much as possible with our own energy supply. I've heard there are companies that provide wind and solar solutions for homeowners. Any idea where to look for such in India? Also, are they cost-effective yet? How long to recoup the investment on average? I'm asking for actual power solutions, by the way, not things like water heaters and garden lights and such.

I've tried the Suzlon and Vestas websites and I don't see any mention of any domestic solutions. All other places I've found for solar mention only outdoor lighting and water heating. Where are the power generation options? If you know any companies that cater to this market, please share here.

Nuclear power's biggest problems are economic: it is simply no longer competitive with other, newer forms of power generation. The final 20 U.S. reactors cost to billion to build, or some ,000 to ,000 per kilowatt of capacity. By contrast, new gas-fired combined cycle plants using the latest jet engine technology cost 0-0 per kilowatt, and wind turbines are being installed at less than ,000 per kilowatt.

Windmill power contracts were signed with power sold at three (3) CENTS per Kw-hr. Less than half the price of the most efficient solar cell panels.

This sounds AMAZING, after reading it do you think this is a real possibility and how many jobs world wide could it create? Since the U.S. Government funded the initial research wouldn't it strengthen the country economically and as well as make the U.S. the world's leading energy provider one way or another? What do you all think?

Here's a quote
The scientists behind the technology, which has been developed in research funded by the US government, say that generating power in this way would potentially cost only around 3.5p per kilowatt hour, compared to about 4.5p for wind energy and between 10p and 31p for solar power. They say the technology would require up to 50 times less ocean acreage than wave power generation.

http://www.telegraph.co.uk/earth/energy/renewableenergy/3535012/Ocean-currents-can-power-the-world-say-scientists.html

Also at 3.5 per KWH it's cheaper according this this table than any other major energy source

http://peswiki.com/index.php/Directory:Cents_Per_Kilowatt-Hour

Hi Everyone, I am working on a business plan which I need to submit to an investment board in Pakistan and a some other countries by December 2011. After speaking to numerous people and reading many journals I would like to know what would be the equipment specification and cost for:
1) Wind turbine for 20 small houses (only lighting, perhaps 2 bulbs and heating the gas stove) would be required.
2) Solar panels for the same need.

I understand batteries and additional equipment will be required if someone can answer these question for me I would be greatly appreciative. The first market I would like to target is rural Pakistan and the resources for both the solar and wind initiatives are as follows:

The average daily insolation amounts to approximately 5–7 kWh/m2/day. Especially
the southwestern province of Balochistan and Northeastern part of Sindh . There the sun shines between 6 to 8 h daily or approximately more than 2300–2700 h per annum. The average daily insolation of 5–7 kWh/ m2/day means daily sun energy of 18–25 MJ/m2/day is available as
input natural resource of energy to be exploited for photovoltaic power generation or solar thermal applications.

Wind speed from 5 m/s to 7 m/s persists in coastal regions of Sind and Balochistan provinces
and in a number of North-West Frontier valleys

Given this data could someone be kind enough to tell me the kind of equipment required to power a small village on 20 or so households for just lighting and heating the stove. My business plan intends to alleviate the poverty of these villagers who have been living in Darkness for centuries and to improve their environment.
Any information will be greatly appreciated.

I need to know how the following things are sustainable.

Leisure Centre/Golf course
Canoeing to an Island across sea instead of boat or plane.
Walking around an island instead of car.
Wind turbine (power generation)
How wildlife and vegetation are protected by banning some areas of an island.
Forest
Picnic area.

Thanks

He mentioned ethanol, the production of which has been proven to be disastrous to the environment as well as damaging to food supplies.

He harped on electric cars which, again, create more pollution through the increased demand on power generation.

Wind & solar are useless outside of Jr High science projects.

So what mythological clean energy does he intend to throw away our money on?
How silly of me. Evidently everyone can have free power from wind or sun, we all just choose to pay ridiculous rates to burn fossil fuels.

Ethanol is a RENEWABLE fuel, but it is not a CLEAN energy source. This has been known for years. Do you people read anything other than fringe websites and propaganda?

http://www.livescience.com/environment/080318-biofuel-dead-zone.html

http://www.associatedcontent.com/article/386784/ethanol_production_can_be_harmful_to.html

As for Iowa... Not a single commercial wind farm operates without subsidies to stay afloat. They are economically unviable. In other words, the entire country is paying so Iowa can pretend wind energy is practical. It would be impossible to duplicate this nation wide.

I almost bought a wind turbine. I want to be able to harness natural resources and I'm worried about our polluting of the planet.

But.... I'm glad I didn't invest in a turbine.

When I pressed the vendor if he could stand by his claims for the power generation, he went all furtive and withdrew his original offer.

He said I'd get my money back and even be able to sell electricity BACK to the utility companies. Sounds brilliant.

But he couldn't give me a single example of anyone that does this.

In the past, I've bought a couple of solar panels, and neither of them worked.

I do use a wind up radio though.

Can anyone help me? I want a real example of power generation. What's the average power generated by a wind turbine? (I want the real figures, not the idealistic figures)

I looked a Hugh Fearnley-Whittingstall's river cottage web site, which publishes daily figures for power generation, and the figures don't look too impressive.

I want to build a machine that translates my physical exertions into useful energy. For example. If I could row for an hour, I might be able to turn a drum and get my laundry done.

Or cycle on a stationary bike and use that energy to turn a turbine or grind up all the packaging from my dustbin.

Where do I start looking for equipment?

Thanks

This is to experiment with power generation. I am looking for small (4-6 inch diameter), premade, cheap fan blades that do not include a motor (I already have the motor). Does anyone know where to get something like this, or even what category I should be looking under? I have found some good options, but they all include a motor and are upwards of .

Hello everyone,

I'm studying electricity in school, but I still don't have a firm grasp on electrical power systems and was hoping for some help. I have four main questions. Anyone working in power systems, please share your knowledge!

1. How do each of the various generation schemes (coal / steam turbine, wind farm, nuclear plants, etc) output power at exactly 60Hz? I understand the basics of how a electrical generator works, but I don't understand how they stabilized the output frequency to exactly 60Hz.

2. How do multiple generation points in the system synchronize their outputs to each other? How do all the different power plants and such dump power onto the grid together at the same phase?

3. I guess I don't understand the grid itself overly well. Could anyone explain the concept of the power grid? (for example, is it like multiple net contributors of power (power plants, etc) each acting similiar to batteries in parallel?

4. What happens to excess (unused) power? If a particular system has three 250MW power plants, but the neighborhoods they power only use up 600MW, what happens to the extra unused 150MW? I've heard that people monitor the power input/output and "adjust" the power output from the plants to match the consumers' usage. Is this true, and if so, how is this done? (shutting off generators, running them more slowly, etc). Also, if this is the case, what is done for power generation sources that cannot be human controlled (say, a wind farm; when the wind blows, it turns)?

Thanks in advance.

At a certain location, wind is blowing steadily at 12.8 m/s. Determine the mechanical energy of air per unit mass andthe power generation potential of a wind turbine with 60-m-diameterblades at that location. Take the air density to be 1.28kg/m.

Wmax =? kW
1.28kg/m³ *
80m, not 60m

I'm writing a paper on the advantages of wind energy over traditional power generation methods (ie. coal, nuclear, etc.), and I need a section on the history of wind energy. Obviously, this would be windmills. So I ask (since I can't find it anywhere): What was the first known use of windmills, and what was it used for? Please include your sources, and please make them RELIABLE, such as .edu or .gov web addresses, books, etc, as I will be citing these sources in my paper. Thanks!

Determine the mechanical energy of air per unit mass and the power generation potential of a wind turbine with 50-m-diameter blades at that location. Take the air density to be 1.25 kg/m3.

It just seems to work so well on a small scale? is there a reason why it can't be produced larger and used for power generation? are their issues with building materials?

I'm not talking kilowatt hours here. If you added up the wattage of all the electrical appliances in a house, how much would you get? The reason I ask is that I would like to know how many watts of power generation (solar, wind, hydrogen) I would need to be totally independent of the network. Thanks

I would like to know how wind velocity and the size, weight and composition of the blades determine the amount of energy produced. I have no background in physics or engineering, so I would appreciate and assistance or guidance with respect to wind power generation. Thanks.

It's one of the cheapest and cleanest forms of power generation but very few groups are willing to invest.
Scottsdale and Tat: I'm glad the areas in which you live are receptive to the turbines.
Jon: I don't know where you live, but here in Missouri the wind blows day or night.

please help me, i'm going to write a thesis about hybrid wind turbine-diesel power generation, but the problem is i cant find a way to make a wind turbine with low cost, i'm still an undergrad student you see
can anyone share me an ebook or a website that shows how to build a simple and cheap one?
i really appreciate the help
thank you before

I see those wind turbines and the floating wave power towers for producing electricity.I was curious, is the Great Lakes good for producing wind and wave power generation like in the Oceans? Thanks!