Renal agenesis. Renal agenesis is a medical condition in which one (unilateral) or both (bilateral) fetal kidneys fail to develop.
Polycrystalline cells are composed of multiple silicon crystals, which is a cheaper way to manufacture solar modules. Put simply, these cells are easier for a factory to produce, so they are less expensive. Polycrystalline cells are made by several methods, but most commonly with a cast of molten silicon.
Monocrystalline. 1  No. of Cells â 60. 2  Weight â 18.5 kg. 3  Efficiency â up to 16.5%. 4  Output â up to 270 Wp. 5  High salt mist and ammonia resistance. 6  Low light performance â good. 7  Withstands high wind loads (2400Pascal) and snow loads (5400 Pascal)