Solar and wind energy are now the cheapest form of new energy systems. The cost of producing solar panels, and of producing batteries to go with them, has been coming down rapidly. You may choose to go off-grid, however most households are 'grid-tied' and therefore generate a financial return for the energy that is sold to the grid. Grid capacity challenges that you may have heard about are a temporary problem that will be solved. In the meantime, you can invest in solar and carve out ways that maximize your savings - such as by directly charging your Electric Vehicle!
Because they absorb the sun, solar panels have a cooling effect, no matter where they are placed. If they are on your roof, your house will be cooler. If they are in the neighbouring field, the neighbourhood will feel cooler. If they are on a carport in your yard, both your yard and your vehicle will be cooled. Can we cool environments by installing solar panels? Yes!
Although nearly everyone chooses to be 'grid-tied,' as opposed to 'off-grid', you can still achieve a degree of energy independence if you install a solar system. For example, a solar carport that directly charges your Electric Vehicle can for most drivers adequately provide for your all your driving needs. You would literally be driving for free.