like how much does it cost per joule or kilo joule??
im doing a project in science, but i can’t seem to find it anywhere…
joule is a unit of energy.
Magnets4Energy
Easy Solar Kits
Sunforce 50044 60-Watt Solar Charging Kit
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Solar Energy Facts
Archive for December, 2009
How much does solar power cost?
Evergreen Solar Panels @ Home – At What Prices Can You Buy These Panels?
Planning to get some clean solar energy into the house and need to know the wattage / volts output I can expect corresponding to the panel price.
Evergreen solar panels cost between $750 for the 170 W panel and $892 for the 195 W panel.
solar panel efficiency in space?
What, if any, improvement in efficiency per square foot or meter is realized by a solar panel in space vs. being mounted on the ground where the light is attenuated by the atmosphere?
In passing, I found a site that gives an output of .89 watts / 4 in. sq for a particular home-mounted panel.
I’m not sure on the exact numbers of solar panel efficiency, however i do know that at the radius of the Earth we should be receiving about 1000W of power per square meter.
Why do solar hot water panels have a shiny silver inner surface?
Will the silver surface not reflect the heat absorbed by the matt black outer surface before it reaches the pipes to heat the water?
The pipes are black to absorb the heat.
The inner surface is reflective to focus the suns rays that miss the black pipes on the way in back on to the pipe.
A similar but opposite arrangement is seen on sunbeds where the light from the tube is reflected outwards onto the body of the person on the sunbed
Can you give me interesting information on solar energy/power?
It might help me to make my project more interesting and fun.
well…what exactly is your project? solar power=cheap, free, and easy. you could make a solar powered hotdog cooker to show how easily it can be harnessed.
