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On one hand solar panels are a great product because of 3 main reasons the first one to begin with is fact that solar panels pays for themselves in the long run. While the panels you need to pay a few thousands of dollars and with time the solar panels will cut your electricity bills of by a lot. The panels are also environmentally friendly, which means they do not produce a lot of waste infect the only waste is the progress of making the panels. To finish of with i wanted to say that once you have installed the solar panel system, it can last for twenty to thirty years without major maintenance needed. You may need to do system check once a year, just to make sure everything is performing as it should. Since it requires very minimum maintenance cost, your cost should be minimal. On the other hand the panels can’t work at times that the sun's not shining outside which makes the system useless at winter times or even at night. That is the only negative about the system.
In conclusion, I think that people should have been using renewable energy before, since most of our planet's resources are very temporary and this is one of the only resources that is infinite. We have started to make use of fossil fuels a about 250 years ago and the recourse is nearly gone. Scientists estimate that the resource will be gone by 2081, so we need to think about a solution, but we already have, renewable energy. Humans should not be waiting until the last second to use renewable energy. I think that countries and people should start to invest money in wind turbines solar panels hydro systems and more…