2. Is solar energy a clean or green source?
Photovoltaic energy does not emit any type of pollution or waste during its operation, so it does not produce greenhouse gases. Therefore, it is a clean, green and renewable energy since it meets the definition of these: a non-polluting energy production system that does not produce waste. It is renewable because the sun is an inexhaustible source of energy.
A photovoltaic park can operate for several decades with a minimum of maintenance. Upon reaching the terms of its useful life, photovoltaic panels can be recycled and recovered up to 95%, so they do not become garbage or scrap. In the European Union there are some private non-profit organizations that are responsible for collecting and recycling panels at the end of their useful life.