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The sun's energy and pollution

July 30, 2018 862 0

The sun’s energy and pollution
 
There is a multitude of reasons why people should install a solar power system. The global benefit is significant over the years. There is no other action that can be taken that helps the environment more than installing solar panels. Solar energy is a win-win situation in most cases: in addition to its significant financial benefits, going solar is also great for the environment. When your solar panels generate electricity, they produce zero emissions, which means they don’t contribute to climate change or health issues like traditional sources of energy. They also draw their energy from the sun, an abundant resource that will be available and accessible across the world for the foreseeable future. 
 
 Solar panels produce zero emissions
 
Solar panels produce zero emissions once installed on your roof, which means their environmental impact is negligible for most of their life. However, solar panels aren’t zero-emissions resources for their entire lifetime – as they have to be manufactured in a factory first, as well as recycled at the end of their useful life. These two processes are where solar actually has an environmental impact.
Many researchers frame the environmental impact of solar energy on the concept of energy payback time or EPBT. The EPBT reports how long it will take for solar panels to produce enough clean electricity to “pay back” the energy that was used to produce them. This calculation varies depending on a few different factors, including:
 The productivity of your solar panels. If you live in an area that has lots of sunlight, and your solar panels are very efficient, then your system will generate more electricity and have a shorter EPBT.
 How your solar panels are produced. Some solar panels require more energy to produce than others. For example, thin-film modules have a smaller footprint than silicon modules, because less energy is needed to manufacture them. Where your solar panels are made. Solar panels have to be transported from where they were made to where they will be installed. If your solar panels were manufactured in Europe or Asia but installed in the U.S. then they had to be transported further, requiring more energy usage and thus increasing their EPBT. 

Environmental Impact of Solar Energy Is Net Positive

The good news is that, while the EPBT of a solar panel is dependent on many factors, the market is moving in the right direction. In 1970, the average energy payback time for solar panels was 40 years. By 2010, that number had dropped to just six months.
As the solar industry matures, manufacturers are constantly looking for ways to make solar panels more efficiently, which means that solar’s EPBT will continue to decrease. For example, in the past 10 years, there has been a 62 percent decrease in the amount of material used for silicon cells, thanks to increased efficiency and thinner designs. This decrease means that less energy is spent processing silicon during the manufacturing process. And as more solar panels are retired, recycling them will become more cost-effective and efficient too, further reducing their EPBT.In addition, it’s important to remember that solar panels can generate energy for 25 to 35 years. For the average homeowner, going solar is like eliminating the emissions created by a car that drives 18,000 miles per year – a tremendous environmental benefit. So while the environmental impact of solar energy is greater than zero, its overall benefits far outweigh its costs. In summary, the environmental impact of solar energy is currently minimal, but still, something that should be considered when evaluating what country your panels were manufactured in, or what their efficiency rating is. Technological improvements are being made constantly in the solar industry.

There has never been a better time to install a solar energy system!

If you want to move into the future and join the solar revolution, or if you want to find out what solar panels are right for you, go to HahaSmart.com and try our price checker tool. You can see how much a system will cost, and how much you can save over the next 20 years. 

For more information relating to going solar, don't forget to visit our solar blog section for more handy guides and articles. 

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