
Solar cells are starting to pop up everywhere. We’ve already talked about the USB solar charger and Blue Earth. Time for some solar batteries.
These are standard, rechargeable batteries that have been wrapped in special, flexible solar cells.
These cells provide a steady “trickle” charge that is meant to make the batteries last a long time (via BB).
As cool as it may sound, small-scale use of photo-voltaic cells, or PVs, isn’t such a great idea. Such devices as cell phones and batteries, have short life-spans. Precious, and sometimes toxic, materials go into manufacturing them and these end up getting wasted or contaminate the earth when they are thrown out.
Many have also pointed out that without the use of diodes, cells that are in the shade will drain power away from those in the sun, or even from the battery itself. This is made worse by the cylindrical shape of the above cells.
A better use of solar cells would be large-scale solar farms that provide cheap, clean electricity for much longer time periods. About time I started work on building my own farm.