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RE: NATURE INSPIRED INVENTIONS --- Photovoltaic cells; the reason for the non-reflecting eyes of the moth.
Solar energy has to be used right away, or it can be stored in large batteries. These batteries, used in off-the-grid solar systems, can be charged during the day so that the energy is used at night.
This is a good solution for using solar energy all day long but it is also quite expensive. In most cases, it is smarter to just use solar energy during the day and take energy from the grid during the night (you can only do this if your system is connected to the grid). Luckily our energy demand is usually higher during the day so we can meet most of it with solar energy.
Awesome post @whileponderin
@whytepresh, I don't think solar energy will remain expensive for long. In fact, few years from now I believe that every home will be able to afford a solar panel. Remember, this was exactly how expensive hydroenergy was before it became common.
Am glad you enjoyed the article, thank you:-).
Hmmmm... I reason with you.