Most systems that solar installers design are grid-tied. That means they are connected directly into the grid and do not require a battery. Net metering is a special billing arrangement that allows customers to get credit for the full retail value of the electricity their photovoltaic (PV) system generates.
Under this agreement, the customer’s electric meter tracks the surplus electricity generated by the solar electric system and the electricity that the customer consumes. The customer only has to pay for the net amount (consumption minus usage) of electricity they use. In this scenario, there is virtually no maintenance for your solar installation.
Dust and other debris settling on the modules will decrease their efficiency and power output. In most locations, rains are frequent and heavy enough to provide adequate washing. If rain isn’t coming often enough to keep them clean, or if bird droppings become a problem, modules can be washed down with a garden hose early in the morning or late at night.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.