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IS THERE ANY VERTICAL AXIS WIND TURBINE THAT WORKS WITH LESS THAN 5KMPH?
Feb 3rd
Question by PBA:
Is there any vertical axis wind turbine that works with less than 5Kmph?
I m looking for the ideal vertical axis wind turbine that virtually has no noice and works with minimal wind speed.
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WILL OFFSHORE WIND-POWER GENERATE ELECTRICITY FOR THE GRID CHEAPER THAN COAL AND WITHOUT TAX BREAKS/SUBSIDIES?
Jan 16th
Question by Facts Are Stubborn:
Will offshore wind-power generate electricity for the grid cheaper than coal and without tax breaks/subsidies?
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DO I SAVE ELECTRICITY BY KEEPING THE LIGHTS ON RATHER THAN SWITCHING THEM OFF/ON OFTEN?
Nov 7th
Question by Leslie P:
Do I save electricity by keeping the lights on rather than switching them off/on often?
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I AM LOOKING FOR A BATTERY THAT WILL LAST FOR MORE THAN 8 YEARS TO STORE ENERGY FROM MY SOLAR PANEL.?
Oct 31st
Question by Solar Panel:
I am looking for a battery that will last for more than 8 years to store energy from my solar panel.?
I use a solar panel as a renewable energy and generate power. Since the battery life is 3-4 years, I am looking for a battery which will have good performance life period for over 8 years. Can you advocate some batteries?
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Q&A: HOW DO YOU BUILD A WIND TURBINE WITH A MOTOR TO POWER A LIGHT BULB WITH PANES NO LONGER THAN 40CM EACH?
Oct 20th
Question by Tom P:
how do you build a wind turbine with a motor to power a light bulb with panes no longer than 40cm each?
how do you build a wind turbine with a motor to power a light bulb with panes no longer than 40cm each?
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Q&A: DOES A BLACK SOLAR CAR CAPTURE MORE SOLAR ENERGY THAN A WHITE SOLAR CAR?
Aug 7th
Question by Susan:
Does a black solar automobile capture more solar energy than a white solar car?
So..
Solar Automobile A is black, Solar Automobile B is white.
Because the color black absorbs sunlight, will solar automobile A’s solar panel capture more solar energy because the solar car’s body attracts more light rays
or does the color not matter?
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WHY ARE “ENERGY SAVING BULBS” SO MUCH BETTER THAN INCANDESCENT BULBS?
Aug 2nd
Question by Steinystewie:
Why are “energy saving bulbs” so much superior than incandescent bulbs?
What is in energy saving bulbs that make them so… energy saving?
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Q&A: WILL THE BOX TYPE AIRCONDITIONER CAN SAVE MORE ELECTRICITY THAN USING THE CENTRALIZED ONE?
Jul 23rd
Question by Art_a_diba:
Will the box type airconditioner can save more electricity than using the centralized one?
I am maintaining a 79 degrees setting both up and down controls on my centralized a/c at home. I only use 1 children room during daytime. If I will just use a 1 horsepower box type a/c in the children room instead of the centralized a/c, Will It lower my electric consumption?
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OTHER THAN SIZE AND SURFACE AREA, WHAT MAKES A BLADE DESIGN FOR A WIND TURBINE EFFICIENTNT?
Jul 19th
Question by Khaled:
Other than Size and surface area, what makes a blade design for a wind turbine Efficientnt?
So i am making a wind turbine, and i know that the more blades more surface area would make it more efficient, but what aspect in the design would make it most efficient , because i want to compare different designs and come up with a central rule for blade efficiency, Can anyone help?
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