Green Energy Post

dragon_slayer79 asked:

I’d really like to be able to get some in person time with someone or a group that has done this before so I can get some pointers and ask some questions on system setups etc. Thanks for your help and time.

Dave asked:

I’m studying an article on wind turbines. The article says that for electricity generation, a wind turbine rotating at high speed providing a low torque is preferable to a turbine rotating at a low speed and producing a high torque. Can anyone explain why this is the case? Surely the speed could be altered easily using a sequence of gears before the generator?

Nathaniel F asked:

How do wind turbines turn their circular motion into electricity that can be stored?

einstein196 asked:

Are two wind turbines better than one big one?

Should I have lots or just one big one in the garden?

nekto84 asked:

I have a huge order of 10 wind turbines from republic of Kazakhstan.But don’t know where I can find those,beside General Electric ones.Any suggestions?
Thanks in advance!

SpaceBoy asked:


How do they work? How do they convery motion into useable energy. How does that energy get stored?
Also, can this principle be applied to charging a battery using wind power?
kerry k, If the answer is short, why would I need a book for it? Idiot

abercrombie hunny <3 asked:


if its $1,000,000 for 1 wind turbine and each turbine produces 5 megawatts in an hour, and there are 1,000 kilowatts in a megawatt then what is the return on the cost??

Mandy asked:


im writing a paper for school on alternative fuels and power sources and one form is wind power using wind turbines and i saw on a commercial that one wind turbine can power a certain amount of homes so i guess my question is how many houses can one wind turbine power?

campbelp2002 asked:


Some of the early high efficiency ones had 2, and the old wind chargers had many, but what is it about 3 that makes it the modern choice?
OK, I did assume it was for efficiency, but why is 3 more efficient that 2 or 4 or any other number? Or is there also a non-efficiency reason, like damping out resonant vibrations or something like that?

g_shinderman asked:


How do they? does the propel give out energy? someone answer, I really wanna know.

Snappy asked:


Are they energy efficient? Do the wind turbines make a lot of noise? Do you think they are ugly and ruin nature and wild birds? Do you know anyone who owns one? How much are they?

Bluebottles88 asked:


How does it spin, int terms of drag, and in terms of power stroke and return stroke?

Also, how does twisting the blades around the axis make it more efficient?

And what about the height of the blades?

Any links would help too

Billy Bob asked:


I know it depends on the region and I know that wind speeds aren’t constant so there isn’t a definite number, but on average, how many homes could one wind turbine power. reliable source please. I’m having an argument with one of my friends. He thinks that wind turbines aren’t worth putting up and they don’t produce a substantial amount of energy, of course I disagree.

Tahini Raving Weirdo asked:


I’m planning to build a catamaran from two surfboards, attach a DC pump motor, put a seat on it and a wind turbine (500W) and make this thing my commuter boat. It needs to cover 8 miles in under an hour and back, and I hope to recharge it over night using the wind turbine only (the thing will be moored in Otago Harbour, southern New Zealand, and I’m planning to swim out to it in the mornings using a wetsuit).
How many batteries do you reckon I need, how big an engine do I need to get up to about 10 knots, and how many wind turbines are necessary to recharge this thing over night?

As you can see, I’m a determined fool.

Bluebottles88 asked:


They are drag-based turbines, so when does drag pose a problem and decrease efficiency, in terms of the part of the rotation?

Any links would help too