The solar modules need sunlight to produce electricity so a ‘sticky’ snowfall that blocks the sun will certainly reduce the power output until it melts or is removed. Once exposed to bright sun, the modules heat up and will shed any snow cover. A good system design will maximize power output with partial snow coverage. [...]
There are no moving parts to wear out in a solar PV system. A semi-annual inspection and optional cleaning is all that is required.
Solar modules installed on your roof convert sunlight to electricity throughout the day. Any electricity that you do not use immediately is put into the power grid. This excess solar energy offsets your energy use at night when the system is not generating electricity. The result is lower utility bills and more control over your [...]