The Renewable Energy Hub Forum
Renewable Energy => Solar PV => Topic started by: Zarostulus on December 03, 2015, 03:50:13 PM
-
And is it something that's improving at all? For example, putting solar panels on a variety of moving objects seems like a good idea at first, but would the weight of them almost make it a moot point, as the added weight means more energy is required to move the vehicle and a secondary engine such as a combustion engine then has to work overtime anyway?
As an example, how much can I expect a small solar panel, say 30cm by 30cm to weigh?
-
At a stab in the dark I'd say 250-500g. They are suprisingly light, and won't cave your roof in as some people seem to fear.
-
Solar roofing is 2-4 lbs per square foot or 10-20 kg per square meter, but that's including all the mounting equipment as well. Solar panels must be efficient for transport, as there is a solar powered aircraft that's flown around the world!
(http://cdni.wired.co.uk/1240x826/a_c/colar-impulse-2.jpg)
-
Solar roofing is 2-4 lbs per square foot or 10-20 kg per square meter, but that's including all the mounting equipment as well.
Indeed, integrated panels in car, laptops etc wouldn't weigh as much, because they don't have all the mounting. The panels themselves are pretty lightweight.
-
The silicon wafers are extremely light, so potentially very light, it's the plastic and other stuff that normally adds weights, but when built into a laptop it weighs almost nothing, and sometimes may even make an item weigh less.
-
The silicon wafers are extremely light, so potentially very light, it's the plastic and other stuff that normally adds weights, but when built into a laptop it weighs almost nothing, and sometimes may even make an item weigh less.
How would it make it weigh less? If it's simply less dense, then wouldn't that mean we're making the laptop more fragile?
-
As per my knowledge Solar roofing is 2-4 lbs per square foot or 10-20 kg per square meter, but that's including all the mounting equipment as well. Solar panels must be efficient for transport, as there is a solar powered aircraft that's flown around the world.