A Million Green Ideas

Question by CR: How would convert solar energy to electrical energy?


I’m doing a project in Science Club and me and the other people in club are wondering about how we could convert solar energy into electrical energy on a system?

Best answer:

Answer by K-diesal
it’s hard to do but, umm co2 and carbon together will do the trick

Give your answer to this question below!

Question by mandy upton: How much solar paneling is required to produce electrical energy to move a 250 pound body in a 250 pound cart?


What is the amount of solar energy required to drive a 250 pound cart with a 250 pound person 10 miles? How many square feet of recharged paneling would be required?

Best answer:

Answer by macie
If you are willing to go slowly enough, all you need from the solar panel is enough to overcome static friction to get the cart started.

I do know that a cyclist cruising along at a moderate speed (say, 10 miles an hour) is expending about 1/10 horsepower. That’s 80 watts. So on flat ground, a 100-watt panel push them over the 10 miles in an hour. Such a panel, if square, would be 2 to 2.5 feet on a side, if made with typical contemporary materials. If the terrain is more than gently rolling hills, more power would be needed.

I came accross a new, proven and tested home made wind power system and solar power system which eliminates our electricity bills. It was written by a Renewable energy enthusiasts Michael Harvey the diy called Earth4energy. You can get your copy to save energy and help environment while eliminating your power bills. Get it from here:

http://how-to-build-cheap-solar-energy.blogspot.com/

What do you think? Answer below!

Question by rach: When using solar power is there still use of electrical outlets?


I would like to use a certain picture for my solar power project that has cords crossed out as an advantage. Is this true? When you have solar power do you not use electrical outlets anymore?

Best answer:

Answer by Ryan Cornwing
yes there is still use

Know better? Leave your own answer in the comments!

Just a point of clarification. It’s been answered before that in a vacuum environment (like outer space) a fan will not work. When you say “not work” does this mean that the blades will still turn but no air flow will result or is it totally not going to function at all despite having full electrical power to do so?

Best reply by greengunge:

they will still turn, the power is there. the air isnt required for the blades to turn.

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Would the blades of an electric fan “rotate” in a vacuum environment?

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Electrical grids are always up and running at the supply side so what difference does it make for creating less demand at my house?

Best reply by Anjaree:

Electricity has to be produced using inputs such as gas, water, uranium etc. It can’t be kept somewhere after production, but has to be sent to consumers directly. The production process releases CO2, radioactivity and gas which harmful to the environment. Stop driving cars can also be helped.

Read the original question here
How does being frugal with electric use help the environment?

Battery chargers that are powered by solar energy are now widely available. Now, you don’t need to rely fully on conventional electricity to power electrical devices. If you install the right size solar panel, you may be able to …