Problems with solar energy typically boil down to cost and efficiency. The initial cost may be a bit much for people to afford, especially since solar panels take about 10 years to pay for themselves. Efficiency is a bigger problem, though, as many factors can negatively affect efficiency. The solar panels available now typically need direct sunlight to be remotely effective, which means weather and pollution can affect the panels, as well as obstructions such as trees and buildings. Because solar panels can only collect energy during the day, this really limits the energy that can be generated, not to mention that the sun’s position might mean that the panels can only operate at maximum efficiency during a very limited part of the day.
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