How much profit from solar?

Good afternoon, I'm curious about the potential profits one could expect from investing in solar energy systems. With the increasing global concern for environmental sustainability and the falling costs of solar panels, I'm wondering if solar energy is a viable investment option. Could you elaborate on the average return on investment for solar systems, taking into account factors such as installation costs, maintenance expenses, and the variable nature of solar radiation? Also, I'd like to know if there are any specific incentives or tax breaks available for solar energy investments in my country. Thank you for your time and assistance in this matter.