Solar energy is not only sustainable, it is renewable and this means that we will never run out of it.
It is about as natural a source of power as it is possible to generate electricity. The creation of solar energy requires little maintenance.
During operation solar electricity power plants produce zero emissions.
They are a silent producer of energy. There is absolutely no noise made from photovoltaic panels as they convert sunlight into usable electricity.
There are continual advancements in solar panel technology which are increasing the efficiency and lowering the cost of production, thus making it even more cost effective.
Once the solar panels have been installed and are working at maximum efficiency there is only a small amount of maintenance required each year to ensure they are in working order.