The material for the production of monocrystalline solar panels is an ultra-pure silicon, also used for the production of semiconductor devices in electronics. Silicon monocrystal rods grow slowly "and pulled out of the silicon melt and then cut to a thickness of 0.2-0.4 mm and used to manufacture photovoltaic cells included in the solar panels.
Panels based efficiency of monocrystalline silicon are about 22% in life of about 25 years.
According to the practice of the solar power plants in the field, you can talk on the life of monocrystalline modules for over 30 years. Moreover, over the life of the power loss in the silicon single crystal elements is not more than 10%.