Energy storage is the capture of produced at one time for use at a later time to reduce imbalances between energy demand and energy production. A device that stores energy is generally called an or . Energy comes in multiple forms including radiation,,,, electricity, elevated temperature, and .
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A keeps heat from the Sun. In a greenhouse, three effects occur: no (air blocking), ray keeping (the ground absorbs a photon, emits it with lower infrared energy, and the glass reflects this infrared to the ground), and little conduction (double glazing). It seems that the convection effect is the most important, as greenhouses in poor countries are made of pla.
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